Contested wills in Singapore: capacity, knowledge and approval, undue influence
6 reported judgments · 4 courts · probate and administration
Mostly upheld · one set of wills struck down for want of capacity / suspicious circumstances
Across the leading Singapore will-validity judgments analysed here, the outcomes were mixed: most challenges failed and the wills were upheld — an Appellate Division dismissed a challenge to a testator's capacity, a High Court found a will valid despite alleged suspicious circumstances, and further courts dismissed capacity / undue-influence challenges — but in one case the challenge succeeded and the disputed wills were struck down because the testatrix lacked testamentary capacity and the wills were made under suspicious circumstances. The propounder bears the burden of proving capacity; once capacity is shown, knowledge and approval is presumed unless the circumstances are suspicious; and the burden of proving undue influence lies on the challenger. These are decided outcomes, on each case's own facts — not a prediction of how any will challenge would be decided, and not legal advice.
What have Singapore courts decided?
When the validity of a will is disputed in Singapore, the courts decide a familiar set of questions: did the testator have testamentary capacity, did the testator know and approve the contents of the will, and was the will procured by undue influence? The cases below show how the courts have answered these questions and where the burden of proof lies. On capacity, the propounder of a will (the person seeking to uphold it) bears the legal burden of proving that the deceased had testamentary capacity. As [2025] SGFC 128 explains, capacity is generally presumed, and prima facie established, where the will was duly executed in ordinary circumstances — that is, where the testator was not known to suffer any mental disability — and one indication is that the will is rational on its face. Once that presumption operates, the party challenging the will may rebut it by adducing evidence (for example of a serious medical illness) that the testator lacked capacity, and the burden of proving unsoundness of mind lies on the person alleging it. [2025] SGHC(A) 15 is an Appellate Division decision on this very question — whether a testator who had been diagnosed with cognitive impairment retained testamentary capacity when he made a later will revoking his earlier wills — and [2025] SGHCF 4 is a further decision in which capacity was the central issue. On knowledge and approval, where testamentary capacity is established a rebuttable presumption arises that the testator knew and approved the contents of the will, and the evidential burden shifts to the opponent of the will. That presumption does not arise, however, where the circumstances surrounding the will's preparation and execution are suspicious; in that situation the propounder must affirmatively prove that the testator knew and approved the contents ([2025] SGFC 128; [2026] SGHC 104, which concerned, among other things, whether unduly suspicious circumstances surrounded the will). On undue influence, a will may be set aside if it was procured by coercion that overpowered the testator's volition, and the burden of proving undue influence lies on the person who alleges it ([2025] SGFC 128). The decided outcomes are mixed and turn on the evidence in each case. In most of the reported cases the challenge failed and the will was upheld, including [2024] SGHCF 39, where the court declined to disturb the trial judge's findings on the disputed authenticity of a later will and dismissed both cross-appeals, leaving an earlier properly executed will standing. But a challenge can succeed: in [2024] SGHCF 28 the court upheld a finding that two later wills were invalid because the testatrix lacked testamentary capacity and the wills were made under suspicious circumstances, so that only the earliest will remained valid and a grant of probate on the later will was revoked. Underlying all of this are the formalities of a valid will: it must be signed at the foot or end by the testator in the presence of at least two witnesses present at the same time, who then subscribe the will in the testator's presence. This page reports what the law on the validity of wills requires and how the Singapore courts have applied it in decided cases; it is reference information about the law, not legal advice, and every case turns on its own facts.
These are the outcomes Singapore courts reached on each case's own facts (the execution circumstances, the medical evidence of capacity, and any suspicious circumstances) — reported as data, not a prediction of how any particular will would be decided, and not legal advice. Most of the reported challenges failed and the wills were upheld, but one succeeded and the wills were struck down; a different case on different facts can be decided differently. For an assessment of a specific situation, consult a qualified Singapore Advocate & Solicitor.
What Singapore courts decided in each reported judgment. Each row is the outcome in that specific case on its own facts; the full reasoning and a verbatim line from the judgment are in the breakdown below.
| Judgment | Outcome (will upheld?) | Source cases |
|---|---|---|
[2025] SGHC(A) 15 · SGHC(A) The Appellate Division dismissed the appeal, holding that the appellant had not shown that the Judge erred in finding, on the available evidence, that the testator had testamentary capacity when he made the later will. | Capacity upheld — appeal dismissed | |
[2026] SGHC 104 · SGHC The court held the will valid, finding that it was legitimate and should be viewed as valid; the question of whether particular clauses could be given effect was a separate matter of construction. | Will held valid | |
[2025] SGHCF 4 · SGHCF The court dismissed the appellant's appeal, upholding the dismissal of the validity challenge, the propounder of a will bearing the burden of proving the testator had testamentary capacity when the will was signed. | Challenge dismissed — capacity found | |
[2024] SGHCF 39 · SGHCF The court declined to disturb the trial judge's findings of fact — made after weighing the conflicting handwriting experts — and dismissed both cross-appeals, leaving the properly executed May 2017 will standing as the operative testamentary document. | Later will upheld — both appeals dismissed | |
[2024] SGHCF 28 · SGHCF The court dismissed the appeal and upheld the District Judge's findings — the 2nd and 3rd wills were invalid for want of testamentary capacity and were made under suspicious circumstances, so only the 1st will stood and the grant of probate on the 3rd will was revoked. The central question was the mental capacity of the testatrix, and a will that appears rational does not establish capacity if its terms emanated from a beneficiary rather than the testatrix. | Wills struck down — challenge succeeded (no capacity / suspicious circumstances) | |
[2025] SGFC 128 · SGFC The propounder bears the legal burden of proving capacity (presumed where the will is duly executed and rational on its face); knowledge and approval is presumed once capacity is established but not where there are suspicious circumstances; and the burden of proving undue influence lies on the challenger. On the facts the court dismissed the plaintiff's claim as bare and unsubstantiated allegations. | Challenge dismissed (capacity / knowledge & approval / undue influence) |
The judgments, case by case
An Appellate Division appeal over whether a testator, who had been diagnosed with cognitive impairment, retained testamentary capacity when he made a 2012 will revoking his earlier wills; the Judge below had found that he did.
The Appellate Division dismissed the appeal, holding that the appellant had not shown that the Judge erred in finding, on the available evidence, that the testator had testamentary capacity when he made the later will.
“the appeal is dismissed” — [2025] SGHC(A) 15, the judgment
A High Court dispute over the validity of a will, including whether unduly suspicious circumstances surrounded its execution and the construction and formalities of the will.
The court held the will valid, finding that it was legitimate and should be viewed as valid; the question of whether particular clauses could be given effect was a separate matter of construction.
“the Will is legitimate and should be viewed as valid” — [2026] SGHC 104, the judgment
A High Court (Family Division) appeal in which testamentary capacity was the central issue; the District Judge below had dismissed the appellant's challenge to the will's validity.
The court dismissed the appellant's appeal, upholding the dismissal of the validity challenge, the propounder of a will bearing the burden of proving the testator had testamentary capacity when the will was signed.
“This is the appellant’s appeal against that decision, which I dismiss for the following reasons.” — [2025] SGHCF 4, the judgment
Two cross-appeals in the High Court (Family Division) over the validity of a deceased's later will: a properly executed May 2017 will (revoking a 2016 will) was challenged on the footing that a still later “December Will” should prevail, with the authenticity of the deceased's signature on that later document disputed on handwriting evidence.
The court declined to disturb the trial judge's findings of fact — made after weighing the conflicting handwriting experts — and dismissed both cross-appeals, leaving the properly executed May 2017 will standing as the operative testamentary document.
“In the result, DCA 43 and DCA 46 are dismissed.” — [2024] SGHCF 39, the judgment
A High Court (Family Division) appeal where the central issue was the testatrix's mental capacity: the District Judge had found that a 2nd and 3rd will (favouring different sons) were invalid because the mother lacked testamentary capacity and the wills were made under suspicious circumstances, leaving only the 1st will valid.
The court dismissed the appeal and upheld the District Judge's findings — the 2nd and 3rd wills were invalid for want of testamentary capacity and were made under suspicious circumstances, so only the 1st will stood and the grant of probate on the 3rd will was revoked. The central question was the mental capacity of the testatrix, and a will that appears rational does not establish capacity if its terms emanated from a beneficiary rather than the testatrix.
“he found the 2nd and 3rd Wills to be invalid and the only valid will was the 1st Will” — [2024] SGHCF 28, the judgment
A Family Court case setting out the full framework — testamentary capacity, knowledge and approval, and undue influence — where the plaintiff challenged the validity of a 2020 will as procured in suspicious circumstances.
The propounder bears the legal burden of proving capacity (presumed where the will is duly executed and rational on its face); knowledge and approval is presumed once capacity is established but not where there are suspicious circumstances; and the burden of proving undue influence lies on the challenger. On the facts the court dismissed the plaintiff's claim as bare and unsubstantiated allegations.
“I dismissed the Plaintiff’s claim as I found that his allegations were bare allegations, unsubstantiated by the evidence” — [2025] SGFC 128, the judgment
Key questions
What must be proved for a will to be valid in Singapore?
The propounder of a will must prove that the testator had testamentary capacity and (where capacity is established) the testator is presumed to have known and approved the contents, unless there are suspicious circumstances. The will must also satisfy the formalities — signed at the foot by the testator before two witnesses present at the same time, who subscribe it in the testator's presence ([2025] SGFC 128). This describes what the law requires; it is not advice on, or an assessment of, any particular will.
Who bears the burden of proving testamentary capacity, and how is a will challenged?
The propounder bears the legal burden of proving testamentary capacity. Capacity is presumed where the will was duly executed in ordinary circumstances and is rational on its face; the person challenging the will may then rebut the presumption with evidence (such as a serious medical illness) that the testator lacked capacity, the burden of proving unsoundness of mind lying on the person who alleges it ([2025] SGFC 128). In [2025] SGHC(A) 15 the Appellate Division considered whether a testator with cognitive impairment retained capacity when he made a later will. Whether capacity is established depends on the evidence in the particular case.
What is 'knowledge and approval' and how do suspicious circumstances affect it?
Where testamentary capacity is established, a rebuttable presumption arises that the testator knew and approved the contents of the will, and the evidential burden shifts to the opponent of the will. That presumption does not arise where the circumstances surrounding the will's preparation and execution are suspicious — in that case the propounder must affirmatively prove that the testator knew and approved the contents ([2025] SGFC 128; [2026] SGHC 104). What amounts to a suspicious circumstance depends on the facts. In [2024] SGHCF 28 the court upheld a finding that two later wills were invalid where the testatrix lacked mental capacity and the wills were made under suspicious circumstances, leaving only the earliest will valid — an illustration of a challenge that succeeded on the facts of that case.
Can a will be set aside for undue influence in Singapore?
A will may be set aside if it was procured by undue influence — coercion that overpowers the testator's own volition. The burden of proving undue influence lies on the person who alleges it ([2025] SGFC 128). It is a high threshold, and whether it is met turns on the evidence in the individual case.
Related
probate and administration →Source judgments
Every figure on this page is drawn from a reported Singapore judgment. The cases below are the primary sources; each links to its full judgment.
- [2025] SGHC(A) 15 — Xbp v Xbo · primary source
- [2026] SGHC 104 — Fauziyah Binte Mohd Ahbidin (Executrix Of The Estate Of Mohamed Ahbideen Bin Mohamed Kassim @ Ahna Mohamed Zainal Abidin Bin Kassim) & Anor v Majlis Ugama Islam Singapura · primary source
- [2025] SGHCF 4 — Xat v Xau & Anor · primary source
- [2024] SGHCF 39 — Wzk & Anor v Wzj · primary source
- [2024] SGHCF 28 — Wwi v Wwj · primary source
- [2025] SGFC 128 — Xvq v Xvr & Anor · primary source
Compiled by the SG Case Law editorial team from primary sources — the judgments themselves and Singapore Statutes Online (sso.agc.gov.sg). · Updated 25 June 2026 · How we compile this
Last updated .