A will is not a document you sign once and forget. Life changes, and so should the plan for what happens to your estate. At the same time, a family may sometimes feel that a will does not reflect what the person truly wanted. Updating or contesting a will are two very different actions, one done by the person while alive, the other raised after death, and both are widely misunderstood. This guide explains, in plain terms, how a will is generally changed and the broad grounds on which one can be challenged in Singapore. It is general information, not legal advice, and your own situation should be discussed with a lawyer.
When and Why to Update a Will
A will made years ago can quietly fall out of step with your life. It is worth reviewing whenever something significant shifts. Common triggers include:
- Marriage, which in Singapore generally revokes a will made before it, unless the will was made in contemplation of that marriage.
- Divorce or the death of a spouse or beneficiary.
- The birth of children or grandchildren you wish to provide for.
- Buying, selling or inheriting property and other major assets.
- A named executor who has passed away, moved abroad or is no longer suitable.
- A change of heart about who should receive what, or about guardianship of young children.
Even without a big event, reading through your will every few years is a sensible habit. An out-of-date will can cause confusion, delay and family friction at the worst possible time.
How a Will Is Changed
There are two main ways to update a will, and the right choice depends on how much you want to alter.
A codicil is a short, separate document that amends part of an existing will. It must be signed and witnessed with the same formalities as the original will. A codicil suits small, clear changes, such as swapping an executor or adjusting a single gift. Piling up several codicils, though, can become confusing and invite disputes, so it is used sparingly.
Writing a new will is usually the cleaner option for anything beyond a minor tweak. A fresh will normally begins by revoking all earlier wills and codicils, so there is a single, current document that speaks for you. This avoids the risk of contradictory papers surfacing later.
Whichever route you take, the same execution rules apply: the will must generally be in writing, signed by you, and witnessed by two people who are present together and who are not beneficiaries or the spouses of beneficiaries. A witness who stands to inherit can jeopardise their gift. Because these formalities are strict and easy to get wrong, many people have a lawyer prepare or check the document. Once done, tell your executor where the original is kept and store it safely.
What It Means to Contest a Will
Contesting a will means formally challenging its validity or effect after the person has died. It is not simply disagreeing with the outcome or feeling that a distribution is unfair. The courts start from a strong presumption that a properly executed will reflects the wishes of the person who made it, so the burden falls on whoever raises the challenge. Disputes of this kind are typically dealt with in the Family Justice Courts or the civil courts, depending on the issue and the value involved.
Challenging a will is often emotionally and financially draining, and it can strain family relationships for years. Before starting, it is worth getting clear legal advice on whether there is a genuine basis and a realistic prospect, and on whether mediation might resolve the matter more gently.
Common Grounds for a Challenge
A will is generally challenged on one of a few recognised grounds. The table below sets out the broad categories. It is a map, not a legal test, and each ground has detailed requirements that a lawyer must apply to the facts.
| Ground | What it broadly means | Who typically raises it |
|---|---|---|
| Lack of testamentary capacity | The person did not understand what they were doing when making the will | Family or beneficiaries |
| Undue influence | The person was pressured or coerced into the will’s terms | Excluded or reduced beneficiaries |
| Lack of due execution | The will was not signed or witnessed as the law requires | Any interested party |
| Fraud or forgery | The will or a signature was faked or the person was deceived | Any interested party |
| Lack of knowledge and approval | The person did not truly know and approve the contents | Family or beneficiaries |
Proving any of these needs evidence, such as medical records for capacity, or witness accounts for undue influence. Suspicion alone rarely succeeds, which is one reason legal guidance early on matters so much.
Reducing the Risk of a Dispute
Whether you are making or updating a will, a few steps can lower the chance of a future challenge:
- Use a lawyer for anything beyond the very simplest estate, so the formalities are correct.
- If capacity might later be questioned, consider a note or medical confirmation from around the time of signing.
- Explain significant or surprising decisions, ideally in a letter of wishes kept with the will, so intentions are clear.
- Keep the original safe and tell your executor where it is.
- Review the will after major life events rather than leaving it untouched for decades.
Clear, current and properly executed documents are the best protection against arguments later.
Where to Get Help
Wills and estates sit at the intersection of law, family and money, and small mistakes can have large consequences. For drafting, updating or contesting a will, engage a lawyer who handles wills and probate. General information about the process is available from MinLaw and, for disputes, the Family Justice Courts. Community legal help may be available through the Law Society’s pro bono services or a legal clinic if cost is a concern. What this guide cannot do is tell you whether to update or challenge a particular will; only a qualified lawyer, looking at your documents and circumstances, can advise on that.
Explore More
Once your will is settled, think about the rest of your legacy: our guide to your digital legacy and online accounts covers what a traditional will often misses. If you are planning ahead more broadly, you may also find our guides to pre-planning and pre-paying a funeral and organ donation and HOTA helpful companions.