SingaporeCan I challenge a will on grounds of undue influence?
Yes, you can challenge a will in Singapore on grounds of undue influence, but you must prove that the testator’s free will was overborne by coercion or manipulation.
What the Law Says
Singapore law does not define 'undue influence' in the Wills Act, but courts treat it as a ground for invalidating a will when the testator’s free agency is destroyed. The burden lies entirely on the person challenging the will.
To successfully challenge a will on grounds of undue influence, you must show that the testator did not act voluntarily — that their decision to make or alter the will was the result of pressure so severe it overpowered their will. Mere persuasion, advice, or affection does not amount to undue influence.
The Wills Act itself does not list undue influence as a formal ground for contesting a will, but Singapore courts have long recognised it under common law principles applied to testamentary capacity and validity. Since the Act governs formal execution requirements, challenges based on mental incapacity, fraud, or undue influence rely on general equitable and common law doctrines.
There is no statutory time limit to bring such a challenge, but practical considerations — like administration of the estate or distribution of assets — mean delays may weaken your position or trigger objections from beneficiaries.
What to Do
Gather evidence showing coercion, isolation, dependency, or suspicious circumstances around the will’s execution (e.g., sudden changes, beneficiary involvement in drafting).
Obtain medical records or witness statements about the testator’s mental state and vulnerability at the time.
File a caveat in the Family Justice Courts to prevent grant of probate while your challenge is pending.
Engage a lawyer experienced in contentious probate to assess strength of evidence and file an originating claim if necessary.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.