Wills · Chapter 2

Validity of Wills and Codicils

Introduction

A will is effective only if the law recognises it as valid. The law sets four distinct hurdles, and a document that fails any one of them is not a will. The testator must have testamentary capacity; they must know and approve its contents; the document must be executed in the manner required by section 9 of the Wills Act 1837; and it must not have been procured by undue influence, fraud or forgery. Validity is not the end of the story, however: even a valid will may be revoked — by a later will, by destruction, or automatically by marriage or civil partnership — while divorce has a dramatic effect on gifts to the former spouse, and alterations after execution are subject to a rule of their own in section 21. This chapter works through capacity, knowledge and approval, undue influence, the s.9 formalities, the s.15 witness-beneficiary rule, privileged wills, revocation, the effect of marriage and divorce, alterations and the doctrine of mutual wills.

Assessment focus

For the SQE1 FLK2 assessment you must be able to apply the four requirements for validity to a client scenario and identify precisely which one is in issue. The most heavily examined points are: the Banks v Goodfellow four-limb capacity test (and its distinction from the Mental Capacity Act 2005); the section 9 formalities, especially the simultaneous-presence requirement; the section 15 witness-beneficiary rule; revocation by destruction, marriage and divorce; and alterations under section 21. Questions are single best answer questions (SBAQs) set in realistic client scenarios; you will be expected to work through the requirements in order rather than leap to a conclusion from one suggestive fact. This is a closed-book assessment — recall every statutory section and the leading authorities from memory.

Study tips

1) Memorise the four limbs of Banks v Goodfellow and remember capacity is tested at the moment of execution (narrow exception: Parker v Felgate). 2) Keep Banks v Goodfellow (testamentary capacity) separate from the MCA 2005 (statutory wills via the Court of Protection). 3) Learn the four s.9 formalities in order and the meaning of 'in the presence of' (line-of-sight, not mere mental awareness). 4) For s.15, the marital/civil-partnership relationship is tested at the date of execution; a superfluous witness is saved by the Wills Act 1968. 5) Distinguish the four modes of revocation: later will, destruction (s.20), marriage (ss.18/18B), divorce (ss.18A/18C) — only the first three revoke the whole will. 6) For alterations (s.21), the key question is apparency: if the original words are still apparent they stand; obliteration beyond apparency is a partial revocation.

1. Introduction

A will is effective only if the law recognises it as valid. The law sets four distinct hurdles, and a document that fails any one of them is not a will. If all four hurdles are cleared the document is a valid will; if any one of them fails the document is of no effect, and — unless the testator has left an earlier will that survives — they die intestate.

Key point
The four requirements for validity:
(i) The testator must have testamentary capacity.
(ii) The testator must know and approve the contents of the will.
(iii) The document must be executed in the manner required by section 9 of the Wills Act 1837.
(iv) The will must not have been procured by undue influence, fraud or forgery.

Each of the four hurdles is a separate question of fact. Capacity is tested at the moment the will is executed (with a limited exception in Parker v Felgate). Knowledge and approval must exist at the same moment but is normally presumed when capacity and due execution are established. The section 9 formalities must be satisfied on the face of the document, again at the moment of execution. Undue influence is an affirmative allegation raised by the person challenging the will and must be proved on the balance of probabilities — there is no presumption.

Validity is not, however, the end of the story. Even a will that was valid when executed may cease to have any operative effect if it has been revoked — by a later will, by destruction with the intention to revoke, or automatically by the testator's subsequent marriage or civil partnership. Conversely, divorce does not revoke the will as a whole, but it does have a dramatic effect on any gift to (or appointment of) the former spouse. Finally, alterations made after execution are subject to a rule of their own in section 21 of the Wills Act 1837.

Key Notes for Section 2.1: ① Four requirements for validity — capacity, knowledge and approval, s.9 execution, absence of undue influence/fraud/forgery; ② failure of any one renders the document of no effect (intestacy unless an earlier will survives); ③ each is a separate question of fact, tested at the moment of execution; ④ a valid will may still be revoked later.

2. Testamentary Capacity

Testamentary capacity is the mental ability required to make a valid will. The test is set out in Banks v Goodfellow (1870) LR 5 QB 549, a decision of the Court of Queen's Bench that is more than 150 years old but is still the governing authority today.

Parliament has legislated on mental capacity since (Mental Capacity Act 2005) but the specialised common law test in Banks v Goodfellow continues to apply in the will-making context: see Walker v Badmin [2014] EWHC 71 (Ch), confirmed in Clitheroe v Bond [2021] EWHC 1102 (Ch). You should therefore apply the common law test, not the MCA 2005 definition.

The Banks v Goodfellow testA testator has testamentary capacity if, at the moment the will is executed, they understand: (i) the nature of the act (that they are making a will) and its effects; (ii) the extent of the property being disposed of; (iii) the moral claims of those who might expect to benefit (and the extent to which they are giving effect to or disregarding those claims); and (iv) are not suffering from any 'insane delusion' that influences the disposition of the property.

The four limbs are cumulative: the testator must satisfy all four at the moment of execution. A person can suffer from a mental disorder and still have testamentary capacity, provided that on the specific question of making a will they understand the four matters set out above. Conversely, a person with no diagnosed disorder can lack testamentary capacity if they are acting under an insane delusion — a belief that no reasonable person could hold on the evidence available — and that delusion has influenced the disposition.

Key point
Burden of proof and the presumption of capacity — The burden of proving capacity lies on the person who propounds the will (the executor or whoever seeks to have it admitted to probate). In practice, however, a rebuttable presumption operates in the propounder's favour: a will that is rational on its face and has been duly executed is presumed to have been made by a testator with capacity, and the burden of showing otherwise shifts to the challenger. If real doubt is raised — for example because the testator was elderly, unwell, recently bereaved, or had a history of mental illness — the propounder must prove capacity affirmatively.

2.2.1 The Relevant Moment and Parker v Felgate

Capacity is tested at the moment the will is executed. A testator who had capacity at the moment of execution will have made a valid will even if they lost capacity the next day; a testator who lacked capacity at the moment of execution will not have made a valid will even if they had capacity the day before and the day after. The rule is strict.

There is one narrow exception. In Parker v Felgate (1883) 8 PD 171 the testatrix gave instructions for a will when she had capacity, but by the time the will was brought back to her for execution she had lapsed into a coma-like state and could do little more than nod when asked whether she approved the document. The court held the will valid.

Key point
The Parker v Felgate exception — a will is valid where (i) the testator had capacity when the instructions were given; (ii) the will was prepared in accordance with those instructions; and (iii) at the moment of execution the testator remembered that they had given instructions for a will and believed the document reflected those instructions. The exception is narrow, requires all three conditions, and is most likely to be encountered in a scenario involving a terminally ill client. A mere nod of assent without recollection of the instructions is not enough.

2.2.2 The Golden Rule and the Solicitor's Duty

Where there is any doubt about the capacity of an elderly or seriously ill client, the solicitor drafting the will should follow the so-called golden rule set out by Templeman J in Kenward v Adams (1975), and approved in Key v Key [2010] EWHC 408 (Ch): the solicitor should arrange for the will to be witnessed or approved by a medical practitioner who has satisfied themselves as to the client's capacity and made a contemporaneous written record of that assessment.

Key point
The golden rule is a rule of good practice, not a rule of law. A will made without compliance with it is not on that ground alone invalid. However, compliance is strong evidence of capacity, and non-compliance makes it far more likely that the court will have real doubt about capacity if the will is later challenged.
Key point
SQE EXAM TIP — Students often confuse the Banks v Goodfellow test with the Mental Capacity Act 2005 definition. In a testamentary capacity question the relevant test is Banks v Goodfellow (Walker v Badmin; Clitheroe v Bond). The MCA 2005 definition applies to statutory wills made by the Court of Protection on behalf of a person who cannot make one themselves, but not to ordinary will-making capacity.
Key Notes for Section 2.2: ① Capacity test is Banks v Goodfellow (1870), not the MCA 2005; ② four cumulative limbs — nature of act, extent of property, moral claims, no insane delusion; ③ tested at the moment of execution (narrow Parker v Felgate exception, three conditions); ④ golden rule (Kenward v Adams; Key v Key) is good practice, not law, but provides strong evidence of capacity.

3. Knowledge and Approval

In addition to having capacity, the testator must know and approve of the contents of the will. 'Knowledge and approval' is shorthand for the requirement that the testator has read or had read to them the terms of the document and has consciously understood and accepted them as their own testamentary intentions.

As a general rule, proof that the testator had capacity and duly executed a will raises a rebuttable presumption that they knew and approved of its contents. The propounder of the will does not, in the ordinary case, have to adduce affirmative evidence of knowledge and approval.

Key point
Two categories displace the presumption and require the propounder to prove knowledge and approval affirmatively:
(i) cases involving a blind, illiterate or otherwise disabled testator who could not read the will; and
(ii) cases in which the circumstances surrounding execution are 'suspicious' in the sense explained in Wintle v Nye [1959] 1 WLR 284.

2.3.1 Suspicious Circumstances — Wintle v Nye

The classic suspicious-circumstances case is where the person who drafted or procured the will (or a close relative of that person) takes a substantial benefit under it. In Wintle v Nye Viscount Simonds explained that the greater the benefit and the closer the drafter's involvement, the stronger the suspicion and the heavier the evidential burden on the propounder to 'excite the conscience of the court' that the testator truly knew and approved the gift.

Key point
Suspicious circumstances are not a separate head of challenge — they are not the same as undue influence. They merely shift the evidential burden back to the propounder to prove knowledge and approval affirmatively.

Gill v Woodall [2010] EWCA Civ 1430 consolidated the modern approach. Lord Neuberger MR held that the court should decide knowledge and approval by looking at the whole picture and asking whether, on balance, the testator understood and approved the content of the will. A solicitor who has taken instructions face to face, read the will back to the testator, and obtained a signed attestation that records those steps will almost always be able to establish knowledge and approval, even where other features of the transaction look odd.

2.3.2 Mistake and Rectification

Where part of a will does not reflect the testator's true intentions because of a clerical error or a misunderstanding of the testator's instructions on the part of the drafter, the court has a statutory power to rectify the will under section 20 of the Administration of Justice Act 1982. Application must be made within six months of the grant of representation (s.20(2)) except with the leave of the court.

Key point
Rectification is the correct remedy for a drafting error; it is not a substitute for a challenge on capacity or knowledge and approval grounds. In Marley v Rawlings [2014] UKSC 2 the Supreme Court held that the power extends to a radical case in which a husband and wife signed each other's mirror wills by mistake, and rectified the documents so that each spouse's will took effect as intended.
Key Notes for Section 2.3: ① Knowledge and approval is presumed on proof of capacity and due execution; ② presumption displaced where the testator is blind/illiterate/disabled or where circumstances are suspicious (Wintle v Nye); ③ modern test — the whole picture (Gill v Woodall); ④ drafting errors are corrected by rectification under s.20 AJA 1982 (6-month limit; Marley v Rawlings).

4. Undue Influence, Fraud and Forgery

Even where capacity, knowledge and approval are present, a will may still be refused probate if it was procured by undue influence, fraud or forgery. These are three separate grounds of challenge with very different practical thresholds.

2.4.1 Undue Influence

Testamentary undue influence is narrower than its counterpart in the law of equity. In a lifetime-gift case the claimant may be able to rely on a presumption of undue influence drawn from a relationship of trust and confidence; no such presumption exists in the will context. The challenger must prove affirmatively that the testator was coerced — that their mind was 'subdued' so that they executed a will they did not really wish to make.

Key point
Coercion, not persuasion — Mere persuasion, argument or appeal to affection does not suffice: see Hall v Hall (1868) LR 1 P&D 481 and Edwards v Edwards [2007] EWHC 1119 (Ch), where Lewison J said the court will infer coercion only from facts inconsistent with any other hypothesis. The burden of proof lies on the challenger throughout; there is no presumption in testamentary cases.

2.4.2 Fraud and Forgery

Fraud is a challenge on the basis that the testator was induced to execute the will by a material false representation — for example that a named beneficiary was dead, or had committed some disqualifying act. Forgery is the allegation that the signature or other material part of the document is not the work of the testator at all.

Key point
Both fraud and forgery are serious allegations that must be pleaded specifically and proved on the balance of probabilities; in practice, however, the court will require cogent evidence because of the gravity of the allegation.
Key Notes for Section 2.4: ① Undue influence in wills requires coercion, not mere persuasion (Hall v Hall; Edwards v Edwards) — no presumption, burden on the challenger throughout; ② fraud = inducement by a material false representation; ③ forgery = the document (or signature) is not the testator's; ④ both must be specifically pleaded and proved on the balance of probabilities (but with cogent evidence).

5. Formal Requirements — Section 9 Wills Act 1837

Section 9 of the Wills Act 1837 (as amended by s.17 AJA 1982) lays down four formal requirements that must be satisfied for a will to be validly executed. These requirements are strictly applied: a will that fails any of them is invalid, no matter how clearly it reflects the testator's intentions.

The s.9 formalitiesA will is valid only if: (a) it is in writing, and signed by the testator or by some other person in their presence and by their direction; and (b) it appears that the testator intended by their signature to give effect to the will; and (c) the signature is made or acknowledged by the testator in the presence of two or more witnesses present at the same time; and (d) each witness either attests and signs the will, or acknowledges their signature, in the presence of the testator (but not necessarily in the presence of any other witness).

2.5.1 Writing

The will must be in writing. Writing includes any form of visible representation of words — typed, handwritten, printed, or a mixture — and can be on any surface capable of holding a permanent mark. A video recording, an audio recording and an unsigned electronic file are not 'writing'.

Key point
Electronic wills are not yet permitted in England and Wales. The temporary measures introduced during the COVID-19 pandemic that allowed remote video witnessing lapsed on 31 January 2024, and the Law Commission's 2025 report on wills recommends (but has not yet produced legislation enabling) electronic wills. For the purposes of the FLK2 assessment, 'in writing' means physical writing.

2.5.2 Signature

The will must be signed by the testator, or by someone else in the testator's presence and by their direction. A signature need not be the testator's full name; a mark (including an X), a thumbprint, initials, or even a partial signature will suffice provided it is made with the intention of authenticating the document. Where the testator is physically unable to sign — for example because of paralysis — another person may sign for them in their presence and at their direction; the attestation clause should record that fact.

The signature must also 'appear that the testator intended by his signature to give effect to the will' (s.9(b)). Before the 1982 amendments the signature had to be at the foot or end of the will; today the signature may appear anywhere on the document provided the testator intended it to authenticate and give effect to the will. Wood v Smith [1993] Ch 90 is the leading authority: a signature at the top of the document was held sufficient because, on the evidence, the testator intended it to give effect to the will.

2.5.3 Presence of Two Witnesses

The testator must sign, or acknowledge an existing signature, in the simultaneous presence of two or more witnesses. Three points matter.

First — both witnesses must be present at the same time. If the testator signs in the presence of witness A and then separately signs (or acknowledges the signature) in the presence of witness B, the will is not validly executed.

Second'acknowledgement' means that the testator draws the witnesses' attention to an existing signature and makes clear that it is their signature; the witnesses do not need to see the signature itself, but they must know that the document has been signed.

Third'presence' means line-of-sight presence: each witness must be in a position to see the testator sign or acknowledge the signature if they chose to look. Mental awareness alone is not enough.

2.5.4 Attestation by the Witnesses

Each witness must then either sign the will (attest it) or acknowledge their existing signature, in the presence of the testator. The witnesses do not need to sign in the presence of each other — only in the presence of the testator. In practice, however, all three people sign together in a single sitting, and a standard attestation clause records that fact.

Key point
Presumption of due execution — A will that has been duly attested is presumed to have been validly executed: omnia praesumuntur rite esse acta. The attestation clause is not strictly required (s.9 does not mention it) but its presence is of enormous practical importance: in its absence the Probate Registry will require an affidavit of due execution from one of the witnesses before admitting the will to probate (NCPR 1987 rule 12).
Key point
SQE EXAM TIP — When a scenario tells you that only one witness was physically present, or that the two witnesses were not present at the same time, or that the witnesses did not know the document was a will — none of these facts by themselves invalidates the will. What matters is whether the testator signed or acknowledged in the simultaneous presence of two witnesses, and whether each witness signed in the presence of the testator. Work through the requirements in s.9 in order; do not leap to a conclusion based on one suggestive fact.

2.5.5 The Witness-Beneficiary Rule — Section 15

Section 15 of the Wills Act 1837 provides that a gift under a will fails if the beneficiary, or the spouse or civil partner of the beneficiary at the date the will is executed, is one of the two attesting witnesses.

Key point
Three important features of s.15:
First — it does not invalidate the will; it only strikes down the gift to the witness (or witness's spouse). The rest of the will takes effect as written.
Second — it applies only to the two witnesses whose attestation is needed to make the will valid; if a third person signs as a witness as a matter of courtesy, any gift to them takes effect because their attestation is 'superfluous' (s.1 Wills Act 1968).
Third — the marital/civil-partnership relationship must exist at the date of execution, not at the date of death: a later marriage does not disqualify a gift, and a later divorce does not save one.

A gift that fails under s.15 either falls into residue (if it is a specific or pecuniary legacy) or, if the failed gift is itself the residue, the residue passes on partial intestacy to whoever is entitled under s.46 AEA 1925 (see Chapter 5).

Section 15 — Witness-Beneficiary Rule at a Glance
QuestionPosition under s.15 WA 1837
Effect on the willWill remains valid — only the gift fails
Effect on the giftGift to the witness-beneficiary (or their spouse/CP) is void
Whose spouse/CP is caught?Spouse or civil partner at the date of execution
Third (superfluous) witnessGift saved if the will is valid without that attestation — s.1 Wills Act 1968
Later marriage / later divorceIrrelevant — relationship tested at execution, not at death
Where does the failed gift go?Into residue; or, if it is the residue, on partial intestacy (s.46 AEA 1925)
Key Notes for Section 2.5: ① Four s.9 formalities — writing & signature; intention to give effect; signature made/acknowledged before two witnesses present at the same time; each witness signs in the testator's presence; ② 'presence' = line-of-sight (Wood v Smith on signature placement); ③ duly attested will presumed valid (attestation clause; otherwise affidavit, NCPR 1987 r.12); ④ s.15 voids gifts to a witness (or their spouse/CP at execution), saved if superfluous (Wills Act 1968).

6. Privileged Wills

Section 11 of the Wills Act 1837 (supplemented by the Wills (Soldiers and Sailors) Act 1918) creates a narrow exception to the s.9 formalities.

Privileged willA 'soldier in actual military service', a 'mariner or seaman at sea' (and, by extension, a member of the Royal Air Force while on actual military service) may make a valid will — a privileged willwithout complying with any of the s.9 formalities. A privileged will may be oral, may be in writing but unsigned, or may be in writing and signed but unwitnessed: none of this matters, provided the testator had a present intention to dispose of their estate.
Key point
Two further points — A privileged will does not need to be made at the moment of danger: 'actual military service' means the testator must be engaged in active operations against an enemy (or operations exposing them to the hazards of war, including training for those operations). A privileged testator may also be a minor: the s.7 age requirement (18) does not apply to privileged wills.

Privileged wills are rare in FLK2 scenarios but occasionally surface — for example in a scenario involving a serving soldier overseas.

Key Notes for Section 2.6: ① s.11 WA 1837 + Wills (Soldiers and Sailors) Act 1918; ② available to a soldier in actual military service or a mariner/seaman at sea (and RAF on actual military service); ③ may be oral, unsigned or unwitnessedno s.9 formalities needed; ④ no minimum age (s.7 disapplied).

7. Revocation

A will is, by its nature, ambulatory: it has no legal effect until the death of the testator, and at any time before death the testator can revoke it.

Key point
Revocation can occur in four ways:
(i) by a later will or codicil that expressly or by necessary implication revokes the earlier will;
(ii) by destruction of the will with the intention to revoke it;
(iii) automatically by operation of law on the testator's marriage or civil partnership; and
(iv) (as to gifts to the former spouse/civil partner only) by divorce or dissolution.
The first three revoke the will as a whole; the fourth is a partial revocation confined to gifts and appointments in favour of the former spouse.

2.7.1 Revocation by Later Will or Codicil

A later validly executed will or codicil may expressly revoke the earlier will (usually through a clause reciting 'I revoke all former wills and testamentary dispositions made by me'), or may revoke it by necessary implication where its terms are wholly inconsistent with the earlier will. Where the later document is only partly inconsistent, both documents stand together and the later takes effect to the extent of the inconsistency: Lemage v Goodban (1865) LR 1 P&D 57.

Key point
A revoking will must itself comply with the s.9 formalities. An informally written document that purports to revoke but is not itself a valid will does not revoke anything.

2.7.2 Revocation by Destruction — Section 20

Section 20 of the Wills Act 1837 provides that a will is revoked by burning, tearing or otherwise destroying it, by the testator or by some person in their presence and by their direction, with the intention of revoking it. Both elements must be present: destruction and the intention to revoke (animus revocandi).

Key point
A will burnt by accident is not revoked; a will crossed through in ink is not destroyed within the meaning of s.20 (Cheese v Lovejoy (1877) 2 PD 251: the will must be 'burnt, torn or otherwise destroyed', not merely defaced). Conversely, a will that is partly torn or burnt — even if still legible — is revoked to the extent of the destruction if the testator intended revocation.

Where the testator destroys the will but the destruction is conditional on some other event taking effect (for example, on a new will being valid), the doctrine of dependent relative revocation may save the original will if the contemplated event does not occur.

Key point
Missing-will presumption — Where a will last known to have been in the testator's possession cannot be found after death, a presumption arises that the testator destroyed it with the intention of revoking it. The presumption is rebuttable — for example by evidence that the testator was affectionate towards the beneficiaries right up to death and had no reason to destroy the will — but the burden is on the propounder to displace it.

2.7.3 Revocation by Marriage or Civil Partnership

Section 18 of the Wills Act 1837 provides that a will is automatically revoked by the testator's subsequent marriage. Section 18B makes the equivalent provision for civil partnerships. This is a rule of public policy: the law assumes that a person who marries or enters a civil partnership would wish their new spouse or partner to inherit, and so starts the testamentary slate clean.

Key point
The contemplation-of-marriage exceptionSection 18(3) (and the parallel s.18B(3) for civil partnerships) provides that a will made in contemplation of a particular marriage or civil partnership is not revoked by that event, provided it appears from the will that the testator contemplated it would not be revoked. The testator must have contemplated a specific marriage (not marriage in general) and the will must make this clear on its face. A generic clause ('this will is made in contemplation of any marriage') will not do; a clause ('this will is made in contemplation of my forthcoming marriage to X and shall not be revoked by that marriage') will.

2.7.4 Effect of Divorce or Dissolution — Section 18A / 18C

Section 18A of the Wills Act 1837 (for divorce and nullity) and section 18C (for dissolution of a civil partnership) do not revoke the will as a whole. Instead, they provide that, from the date of the decree absolute (or final order), any appointment of the former spouse or civil partner as executor or trustee takes effect as if they had died on that date, and any gift to the former spouse or civil partner lapses as if they had died on that date. The rest of the will continues in force.

Key point
Practical consequences — A testator who divorces and does nothing about their will effectively has a will in which the former spouse simply drops out. If the former spouse was the sole residuary beneficiary and there is no substitutional gift, the residue falls into partial intestacy under s.46 AEA 1925. Note that s.18A is engaged only once the divorce is final (the final order, formerly the decree absolute) — a conditional order (formerly decree nisi) does not engage the section — and it has no effect on a gift to the former spouse's relatives.
EXAMPLE — Tanya, Raj and PriyaTanya made a will in 2018 leaving her entire estate to her husband Raj, or if Raj predeceased her, to her cousin Priya. In 2023 Tanya and Raj were divorced. Tanya never made a new will. In 2026 Tanya dies without re-marrying. Section 18A causes the gift to Raj to lapse as if he had died on the date of the final order of divorce. The substitutional gift to Priya therefore takes effect, and Priya inherits the whole of Tanya's estate under the will — not on intestacy.
Key Notes for Section 2.7: ① Wills are ambulatory — revocable until death; ② four modes: later will/codicil (Lemage v Goodban), destruction + animus (s.20; Cheese v Lovejoy; missing-will presumption), marriage/CP (ss.18/18B; contemplation exception s.18(3)), divorce/dissolution (ss.18A/18C); ③ first three revoke the whole will, divorce is a partial revocation; ④ on divorce the former spouse is treated as if they had died at the final order (formerly decree absolute) — rest of will stands.

8. Alterations — Section 21 Wills Act 1837

Section 21 of the Wills Act 1837 deals with alterations (additions, deletions or substitutions) made on the face of a will. The starting point is that an unattested alteration made after the will has been executed is of no effect: the will takes effect as if the alteration had not been made, and the original words (if still apparent) stand.

The reason for the rule is obvious — without it, anyone could tamper with an executed will and change the disposition.

Key point
Three main exceptions to the no-effect rule:
First — an alteration is valid if it is itself executed in accordance with the s.9 formalities (the testator and the two witnesses sign or initial the alteration itself, in the margin or opposite it). This is the only way to make a post-execution alteration effective.
Second — an alteration made before the will was executed (and so present at execution) is effective, but the onus of proving it was present at execution lies on the person who relies on it. The court will presume an alteration was made after execution unless evidence establishes the contrary.
Third — where an alteration obliterates the original words so that they are no longer apparent (heavily crossed out, inked over, or pasted over), s.21 treats the obliteration as a partial revocation and the obliterated words are revoked, even though the alteration itself is unattested.
Key point
The test of apparency — whether the original words can be read on the face of the will by natural means (holding it up to the light, using a magnifying glass). Extrinsic aids such as infra-red photography are not permitted (Ffinch v Combe [1894] P 191).
EXAMPLE — Bella, George and HarryBella's validly executed will leaves her house 'to my son George'. After execution, Bella strikes through 'George' with a pen and writes 'Harry' above the line, without signatures. The writing-in of 'Harry' is an unattested alteration and has no effect: the court reads the will as originally executed. If 'George' is still legible, George takes. If the obliteration of 'George' is so complete that his name cannot be read, the words are treated as revoked under the obliteration limb of s.21 and the gift fails for uncertainty (partial revocation), falling into residue.
Key Notes for Section 2.8: ① Unattested post-execution alterations are ineffective — original words stand if still apparent; ② an alteration is effective only if executed in the s.9 manner (T + 2 witnesses initial it); ③ alterations present at execution are effective but must be proved (presumed made after execution otherwise); ④ obliteration beyond apparency = partial revocation (test by natural means only — Ffinch v Combe).

9. Mutual Wills

Mutual wills are a narrow equitable doctrine that occasionally arises in FLK2 scenarios.

Mutual willsWhere two testators (typically spouses) make wills in agreed terms on the basis of an enforceable agreement not to revoke those wills, and the first to die does so without having revoked their will, a constructive trust is imposed on the survivor's estate in favour of the beneficiaries named in the agreed dispositions. The survivor remains free to revoke their will in form (and to deal with the property during their lifetime other than by sham transactions), but on the survivor's death equity enforces the agreed disposition by means of the constructive trust: see Re Dale [1994] Ch 31; Olins v Walters [2008] EWCA Civ 782.

The doctrine requires clear evidence of a legally binding agreement — not merely a shared understanding or a joint expectation. Mirror wills (where two people each leave their estate to the other and then to the same ultimate beneficiaries) are not automatically mutual wills: most mirror wills are freely revocable. The agreement must be sufficiently specific and must be intended to be legally binding. In practice a will that is intended to be mutual should say so expressly.

Key point
WARNING — In an FLK2 question, do not leap to the conclusion that any pair of mirror wills are mutual wills. Mutual wills exist only where there is an express and demonstrable agreement not to revoke. If the question simply says a husband and wife both made wills leaving everything to each other and then to the children, that is a mirror-wills case and each will is freely revocable; it is not a mutual-wills case.
Key Notes for Section 2.9: ① Mutual wills require a legally binding agreement not to revoke; ② on the first death without revocation, a constructive trust binds the survivor's estate (Re Dale; Olins v Walters); ③ the survivor may revoke in form but equity enforces the agreed disposition on death; ④ mirror wills are not automatically mutual — clear, express agreement is needed.

10. Key Notes (Chapter Summary)

The following summary table consolidates every term and rule examined in this chapter. Treat it as a revision checklist — you should be able to define each row from memory and identify the governing authority.

Chapter 2 — Key Notes Summary
Key ItemConceptCases / References
Four requirements for validityCapacity, knowledge and approval, s.9 formalities, and the absence of undue influence/fraud/forgery. A will failing any one of the four is invalid.Banks v Goodfellow; Wintle v Nye; s.9 WA 1837
Banks v Goodfellow testThe testator must understand (i) the nature of the act, (ii) the extent of the property, (iii) the moral claims upon them, and (iv) not be affected by any insane delusion.Banks v Goodfellow (1870); Walker v Badmin [2014]; Clitheroe v Bond [2021]
Golden ruleWhere an elderly or seriously ill client makes a will, the solicitor should arrange for a medical practitioner to witness or approve the will. Non-compliance is not itself invalidity but invites challenge.Kenward v Adams (1975); Key v Key [2010]
Parker v Felgate exceptionA will is valid if the testator had capacity when giving instructions, the will was prepared per those instructions, and at execution the testator remembered having given instructions and believed the document reflected them.Parker v Felgate (1883)
Knowledge and approvalPresumed on proof of capacity and due execution; affirmative proof required where testator is blind/illiterate or where the circumstances are suspicious (drafter takes a benefit).Wintle v Nye [1959]; Gill v Woodall [2010]
RectificationSection 20 AJA 1982 — court may rectify where a clerical error or misunderstanding of instructions means the will fails to carry out the testator's intentions. 6-month limit from grant.s.20 AJA 1982; Marley v Rawlings [2014]
Undue influenceMust be affirmatively proved; no presumption in testamentary cases. Requires coercion, not persuasion.Hall v Hall (1868); Edwards v Edwards [2007]
Section 9 formalitiesWriting; signed by T (or by another in T's presence and direction); signature intended to give effect to the will; signed or acknowledged before two witnesses present at the same time; each witness signs in T's presence.s.9 WA 1837 (as amended)
Section 15 — witness-beneficiaryA gift to an attesting witness (or their spouse/civil partner at date of execution) fails. The will is otherwise valid. Superfluous witnesses saved by Wills Act 1968.s.15 WA 1837; s.1 Wills Act 1968
Privileged willsSoldiers in actual military service and mariners at sea may make wills without the s.9 formalities; may be oral; no minimum age.s.11 WA 1837; Wills (Soldiers and Sailors) Act 1918
Revocation by later willA later valid will or codicil revokes the earlier will expressly or by necessary implication; partly inconsistent documents stand together to the extent they can.Lemage v Goodban (1865)
Revocation by destruction — s.20Physical destruction + animus revocandi. Crossing out is not destruction (Cheese v Lovejoy). Missing will presumed destroyed by the testator.s.20 WA 1837; Cheese v Lovejoy (1877)
Revocation by marriage — s.18 / 18BAutomatic. Exception: will made in contemplation of a specific marriage or civil partnership and expressed not to be revoked by it.ss.18, 18B WA 1837
Effect of divorce — s.18A / 18CFrom the final order (formerly decree absolute), gifts to and appointments of the former spouse/civil partner take effect as if the former partner had died on that date. Rest of will stands.ss.18A, 18C WA 1837
Alterations — s.21Unattested alterations are ineffective; original words stand if still apparent. Alterations executed in the s.9 manner are effective. Obliteration beyond apparency is treated as partial revocation.s.21 WA 1837; Ffinch v Combe [1894]
Mutual willsConstructive trust arises where two testators make wills on a legally binding agreement not to revoke, and the first dies without revoking. Mirror wills are not automatically mutual.Re Dale [1994]; Olins v Walters [2008]

11. Revision Notes

Work through each of the following focused revision prompts. Attempt to answer from memory first — the note underneath gives the model answer and explains why the point matters for the SQE1 FLK2.

Revision Q1 — Capacity, the relevant moment and Parker v Felgate
State the four limbs of the Banks v Goodfellow test for testamentary capacity, identify the moment at which capacity must be present, and explain the Parker v Felgate exception to that rule.
Answer & explanation
Model answer. The four limbs are: (i) understanding the nature and effect of making a will; (ii) understanding the extent of the property being disposed of; (iii) understanding the moral claims of those who might expect to benefit; and (iv) being free from any insane delusion influencing the disposition. All four must be satisfied. Capacity must be present at the moment of execution. The narrow exception in Parker v Felgate (1883) validates a will where (a) the testator had capacity when giving instructions to the drafter, (b) the will was prepared in accordance with those instructions, and (c) at the moment of execution the testator remembered having given instructions for a will and believed the document reflected them. All three conditions must be met; a mere nod of assent without recollection of the instructions is not enough.
Revision Q2 — Section 9 execution and 'in the presence of'
Set out the four requirements of section 9 Wills Act 1837 for valid execution and explain briefly what 'in the presence of' means in that context.
Answer & explanation
Model answer. Under s.9 (as amended) a will is valid only if: (a) it is in writing and signed by the testator (or by another in the testator's presence and at their direction); (b) it appears that the testator intended the signature to give effect to the will; (c) the testator signs or acknowledges their signature in the presence of two or more witnesses present at the same time; and (d) each witness signs or acknowledges their signature in the presence of the testator. 'In the presence of' means line-of-sight presence: each person must be in a position where, if they chose to look, they could see the act being performed. It is not enough that they are in the same room but have their back turned, or that they are merely mentally aware of the act.
Revision Q3 — Section 15 witness-beneficiary rule
Explain the effect of section 15 Wills Act 1837 on a gift to a beneficiary who is also one of the attesting witnesses, and identify the two main exceptions to the rule.
Answer & explanation
Model answer. Section 15 causes any gift to an attesting witness, or to the spouse or civil partner of an attesting witness at the date the will is executed, to fail. The rest of the will remains valid and the failed gift falls into residue (or, if the failed gift was the residue, on partial intestacy). Two main exceptions operate. First, section 1 of the Wills Act 1968 provides that where the will would have been duly executed without the witness-beneficiary's attestation (for example because there were three witnesses and only two were needed), the witness-beneficiary's attestation is disregarded and the gift takes effect. Second, s.15 only bites on the marital/civil-partnership relationship as it stood at the date of execution: a later marriage does not disqualify and a later divorce does not save the gift.
Revision Q4 — Revocation and the effect of divorce
Describe the four ways in which a will may be revoked, and explain what happens to gifts in favour of a former spouse where the marriage ends in divorce.
Answer & explanation
Model answer. A will may be revoked: (i) by a later valid will or codicil that expressly or by necessary implication revokes the earlier will; (ii) by physical destruction (burning, tearing or otherwise destroying) with the intention to revoke (s.20 WA 1837); (iii) automatically by the testator's subsequent marriage or civil partnership (ss.18, 18B WA 1837), subject to the contemplation-of-marriage exception in s.18(3); and (iv) as to gifts to a former spouse or civil partner only, by divorce or dissolution (ss.18A, 18C WA 1837). The first three revoke the will as a whole. The fourth is a partial revocation: from the date of the decree absolute or final order, any appointment of the former spouse as executor or trustee takes effect as if they had died on that date, and any gift to the former spouse lapses as if they had died on that date. The rest of the will stands. Any substitutional gift takes effect; if there is none, the gift falls into residue or on partial intestacy.
Revision Q5 — Alterations under section 21
Explain the rule in section 21 Wills Act 1837 on alterations to a will, and describe what happens where the original words are (a) still apparent on the face of the document and (b) obliterated beyond recognition.
Answer & explanation
Model answer. The starting point under s.21 is that an unattested alteration made after execution is of no effect: the will takes effect as originally written. An alteration is effective only if it is itself executed in accordance with the s.9 formalities — typically by the testator and the two witnesses initialling the alteration. (An alteration made before execution, and therefore present at the moment of execution, is also effective, but the onus is on the person relying on the alteration to prove its timing.) Where the original words are still apparent on the face of the document — meaning they can be read by natural means such as holding the paper to the light or using a magnifying glass — those words stand and the attempted alteration is ignored. Where the obliteration is so complete that the original words are no longer apparent, the obliterated words are treated as revoked (the final limb of s.21 operates as a partial revocation), even though the alteration itself is unattested. The test of apparency is strict: extrinsic scientific aids such as infra-red photography are not permitted (Ffinch v Combe [1894]).
Section 2.11 Key Notes: ① Banks v Goodfellow four limbs at the moment of execution (Parker v Felgate exception); ② four s.9 formalities and line-of-sight presence; ③ s.15 voids the gift, not the will (exceptions: Wills Act 1968 superfluous witness; relationship tested at execution); ④ four modes of revocation (divorce = partial); ⑤ s.21 alterations turn on apparency.

12. MCQ Practice — Five SQE-Style Questions

Each of the following five questions mirrors the style, length and difficulty of the SQE1 FLK2 single best answer questions. Attempt each question closed-book, write down your answer, then turn to the answer key. The answer key explains why each option is correct or incorrect — read every explanation in full.

Question 1
A solicitor is instructed by an 84-year-old client who has recently been diagnosed with early-stage dementia. The client gives clear instructions for a new will, under which he will leave his entire estate to his long-term carer instead of to his two adult children. The solicitor is satisfied that the client understands what he is doing but is concerned that the children may challenge the will after the client's death. Which ONE of the following steps BEST reflects the solicitor's professional duty in these circumstances?

A. The solicitor should refuse to act on the instructions because the client's diagnosis of dementia means that as a matter of law the client lacks testamentary capacity.

B. The solicitor should arrange for a medical practitioner to assess the client's testamentary capacity at the time of execution and record that assessment in writing, in accordance with the golden rule in Kenward v Adams (1975).

C. The solicitor should apply the Mental Capacity Act 2005 definition of capacity to the client's instructions and decline to act unless the client passes that test.

D. The solicitor should take instructions and draft the will but must insist that the two adult children be present at execution as witnesses.

E. The solicitor should tell the client that the children will in any event be entitled to a share of the estate as a matter of law and should therefore be named in the will.

Answer & explanation
Answer: B.
B is correct — the golden rule, set out by Templeman J in Kenward v Adams (1975) and approved in Key v Key [2010], advises that where an elderly or seriously ill client makes a will — especially one departing significantly from a previous will or family expectations — the solicitor should arrange for a medical practitioner to witness or approve the will and to make a contemporaneous written record of the capacity assessment. This provides the best evidence of capacity if the will is later challenged.
A is incorrect — a diagnosis of dementia does not of itself deprive a client of testamentary capacity; the Banks v Goodfellow test focuses on understanding at the moment of execution, and a person in the early stages of dementia can still pass it.
C is incorrect — the Banks v Goodfellow test (not the MCA 2005 definition) applies to ordinary testamentary capacity (Walker v Badmin; Clitheroe v Bond).
D is incorrect — the children being present as witnesses would create a conflict and would engage s.15 (any gift to them would fail).
E is incorrect — there is no rule of forced heirship in England and Wales; the children have no automatic entitlement, although they might claim under the Inheritance (Provision for Family and Dependants) Act 1975. (See Section 2.2.)
Question 2
A testator signs his will in the presence of his cousin Alice. Alice then signs the will as a witness. The testator and Alice then travel together to the home of the testator's neighbour Brian, where the testator acknowledges his existing signature to Brian and Brian signs as the second witness. Alice does not sign again. Which ONE of the following statements BEST describes the validity of the will under section 9 of the Wills Act 1837?

A. The will is validly executed because Alice and Brian have both signed it as witnesses.

B. The will is validly executed because Brian has been shown the testator's signature and has signed as a witness, and Alice has previously signed as a witness in the testator's presence.

C. The will is not validly executed because the testator did not sign or acknowledge his signature in the simultaneous presence of both witnesses: section 9(c) requires the two witnesses to be present at the same time when the testator signs or acknowledges.

D. The will is not validly executed because Alice did not acknowledge her own signature in Brian's presence.

E. The will is validly executed because the formalities in section 9 can be completed in stages, so long as each witness eventually has sight of the testator's signature.

Answer & explanation
Answer: C.
C is correct — section 9(c) requires the testator to sign or acknowledge his signature in the simultaneous presence of two or more witnesses. Here the testator signed in the presence of Alice alone, then later acknowledged his signature to Brian alone — at no single moment were both witnesses present together. The will is therefore not validly executed.
A is incorrect — it confuses the requirement that both witnesses sign with the separate requirement that both be present when the testator signs or acknowledges.
B is incorrect for the same reason: the acknowledgement to Brian was in Brian's presence only, not in the simultaneous presence of Alice as well.
D is incorrect — it misidentifies the defect; s.9 does not require witnesses to acknowledge their own signatures to each other, only to the testator.
E is incorrect — s.9 does not allow completion in stages; the simultaneous-presence requirement in s.9(c) is strict. (See Section 2.5.3.)
Question 3
A testatrix makes a valid will in 2022 leaving the entirety of her residuary estate to her husband 'if he survives me', and if not, to her brother. In 2025 a final order of divorce is made. The testatrix takes no steps to change her will. In 2026 she dies, not having remarried. Which ONE of the following statements CORRECTLY describes the effect on the gift of residue?

A. The will is revoked in its entirety by the divorce; the testatrix dies intestate and her residuary estate passes on intestacy.

B. The gift to the former husband takes effect, because section 18A of the Wills Act 1837 operates only where the former spouse has remarried.

C. Under section 18A of the Wills Act 1837 the former husband is treated as having died on the date of the final order, so the gift to him fails and the substitutional gift to the brother takes effect; the rest of the will stands.

D. The gift to the former husband takes effect, because section 18A of the Wills Act 1837 applies only where the will was executed after the final order of divorce.

E. The gift to the former husband takes effect in so far as it relates to the matrimonial home, but any other residuary assets pass to the brother.

Answer & explanation
Answer: C.
C is correct — section 18A provides that, from the final order (formerly decree absolute), any appointment of the former spouse takes effect, and any gift to the former spouse takes effect as if the former spouse had died on that date. It does not revoke the will as a whole. The gift to the former husband lapses as if he had predeceased, so the substitutional gift to the brother ('and if not, to my brother') takes effect.
A is incorrect — divorce does not revoke the will; only marriage does.
B and D are incorrect — they invent restrictions (remarriage; post-decree execution) that are not in the statute.
E is incorrect — there is no 'matrimonial home' carve-out; the suggestion is fanciful. (See Section 2.7.4.)
Question 4
A testator asks his neighbour and his neighbour's wife to witness the execution of his will. Both do so. The will contains a pecuniary legacy of £20,000 to the neighbour's wife. All other formalities under section 9 of the Wills Act 1837 are satisfied. The testator dies. Which ONE of the following statements CORRECTLY describes the effect of the legacy to the neighbour's wife?

A. The legacy is valid because section 15 of the Wills Act 1837 applies only to a gift to an attesting witness, not to the witness's spouse.

B. The legacy is void because section 15 of the Wills Act 1837 strikes down any gift to the spouse of an attesting witness, regardless of when the marriage took place; and it is the witness's marital status at the date of execution that matters.

C. The will is wholly invalid because the legacy to the neighbour's wife means that two of the witnesses are beneficiaries, so there are not two independent witnesses.

D. The legacy is valid if the neighbour's wife can show that she had no knowledge of the legacy at the time of execution and was not induced to witness the will on that basis.

E. The legacy is valid because section 15 only strikes down gifts to attesting witnesses themselves, and the rule in relation to the witness's spouse was abolished by the Wills Act 1968.

Answer & explanation
Answer: B.
B is correct — section 15 provides that a gift to an attesting witness, or to the spouse or civil partner of an attesting witness at the time the will is executed, is void. The rule operates on the relationship as it stood at the moment of execution — so the marriage existing at that time is enough. The rest of the will is unaffected: only the offending gift fails.
A is incorrect — s.15 expressly catches a spouse.
C is incorrect — s.15 strikes down the gift, not the will.
D is incorrect — it invents a knowledge element that is not in the statute.
E is factually wrong — the Wills Act 1968 did not abolish the spouse rule; it preserved gifts where the witness-beneficiary's attestation was superfluous to the validity of the will (for example where there were three witnesses). (See Section 2.5.5.)
Question 5
A testatrix makes a will in 2019 leaving her entire estate to her daughter. The testatrix keeps the will in her desk drawer. After the testatrix's death in 2026 the will cannot be found. There is no evidence that anyone other than the testatrix had access to the desk. The daughter wishes to apply for a grant of probate on the basis of a photocopy of the will. Which ONE of the following statements BEST describes the legal position?

A. The photocopy is sufficient: the court will admit it to probate provided it accurately reproduces the terms of the original will.

B. A rebuttable presumption arises that the testatrix herself destroyed the original will with the intention of revoking it, and the daughter must adduce evidence sufficient to rebut that presumption before the will can be admitted to probate.

C. The fact that the will cannot be found is conclusive proof that it has been revoked by destruction, and the testatrix is treated as having died intestate.

D. The photocopy can only be admitted to probate if it bears the original signatures of the testatrix and the two witnesses.

E. The will is irrebuttably presumed to be still in existence, and the daughter should apply for an order requiring its production.

Answer & explanation
Answer: B.
B is correct — where a will was last known to have been in the testator's possession but cannot be found after death, the common law presumes — rebuttably — that the testator destroyed it with the intention of revoking it. The daughter must therefore adduce evidence sufficient to rebut the presumption (for example evidence that the testatrix spoke affectionately of the will immediately before death, or that the desk was accessible to others with a motive to remove it). If the presumption is rebutted, the Probate Registry can admit a copy of the will to probate under NCPR 1987 rule 54.
A is incorrect — a photocopy is not automatically admissible: the presumption of destruction must first be rebutted.
C is incorrect — it overstates the law; the presumption is rebuttable, not conclusive.
D is incorrect — a copy by definition does not bear original signatures, yet it may still be admitted if the presumption is rebutted.
E is incorrect — it reverses the presumption. (See Section 2.7.2.)
Keep practising with PASS SQE: five questions per chapter is only the beginning. To practise at exam pace and cover every corner of the FLK1 and FLK2 syllabus, use the CELE PASS SQE App — more than 10,000 high-quality SQE1 practice questions, with detailed explanations written by CELE's SQE tutors. Start practising today at celebar.com.