
Losing a loved one is an incredibly difficult and emotional time. But this grief can become mixed with confusion and suspicion if their final will feels wrong. You might be looking at the document, and the person you knew and loved is nowhere to be found in its pages.
Perhaps a new person is suddenly receiving everything, or you and other family members have been unexpectedly left out. It can leave you feeling hurt and questioning what truly happened.
This leads to the difficult question: can you challenge it? The process is known as contesting a will, and while it is possible, it is a serious legal step that requires specific grounds.
What Are the Valid Grounds for a Will Contest?

To be clear, you cannot challenge a will just because you feel the distribution is unfair or you were left out. The Court upholds a person’s freedom to decide who gets their assets.
To successfully contest a will, you must prove that the will itself is legally invalid. This means you must establish one of the following specific grounds.
1. Lack of Testamentary Capacity
This is the most common ground. You must show that the person who made the will (the ‘testator’) was not of sound mind, memory, and understanding at the exact time they signed it. This isn’t just about old age or forgetfulness.
To have the required capacity, the testator must have understood three key things:
- The Act: They understood they were signing a will and what its effects would be.
- The Assets: They had a general idea of the assets they owned and were distributing.
- The People: They were able to appreciate the people they were morally expected to provide for (like a spouse or children), even if they chose to exclude them.
This can be challenging to prove. Evidence is crucial, such as medical records showing conditions like dementia or mental illness around the time the will was made, or testimony from doctors and witnesses.
2. Undue Influence
This is a very serious allegation and difficult to prove. It’s not enough to show that someone persuaded or pleaded with the testator.
To succeed on this ground, you must prove that the testator was coerced. The influence must have been so intense that it overpowered their free will, forcing them to include terms in the will that they did not truly want. This involves more than just persuasion; it often involves threats, harassment, or taking advantage of a very frail or dependent person.
3. Lack of Knowledge and Approval
This argument states that the testator, even if they had capacity, did not know or approve of the actual contents of the will they signed. This can happen in situations where:
- The testator was blind, illiterate, or did not understand the language the will was written in.
- The contents were not properly read or explained to them before they signed.
- Someone prepared the will with terms the testator was not aware of and simply asked them to sign.
4. Forgery or Invalid Formalities
A will is a strict legal document that must follow specific rules under the Wills Act to be valid. If these rules (known as “formalities”) are not met, the will can be declared invalid.
The key requirements are:
- The will must be in writing.
- The testator must sign the will at the very end of it.
- The testator must sign (or acknowledge their signature) in the presence of two or more witnesses, all present at the same time.
- Those witnesses must then sign the will in the presence of the testator.
If a signature is proven to be forged, or if these witnessing rules were not followed exactly, the entire will can be thrown out by the Court.
What Evidence Is Needed to Contest a Will?

Allegations are not enough; the burden of proof is on the person challenging the will. You must provide strong, specific evidence to support your claim. The evidence needed to contest a will depends entirely on the grounds you are using.
For Lack of Testamentary Capacity:
You must show that the testator was not of sound mind when they signed the will. This often requires:
- Medical Records: This is the most powerful evidence. Clinical diagnoses of conditions like dementia, Alzheimer’s, or other cognitive impairments are critical.
- Medical Expert Testimony: A doctor’s assessment of the testator’s mental state around the time the will was signed.
- Witness Statements: Testimony from friends, family, or caregivers who can describe the testator’s confusion, memory loss, or irrational behaviour near the date of signing.
- Solicitor’s Notes: The notes taken by the lawyer who drafted the will are very important. They often include an assessment of the testator’s capacity.
For Undue Influence:
This is very difficult to prove as it often happens behind closed doors. You must show that the testator’s free will was completely overpowered. Evidence might include:
- Proof of Isolation: Demonstrating that a specific person prevented the testator from seeing other friends or family.
- A Drastic Change in the Will: A will that is suddenly and radically different from previous wills, especially one that benefits the person accused of influence.
- Testimony of Coercion: Statements from witnesses who heard threats, harassment, or saw manipulative behaviour.
- Suspicious Circumstances: Evidence that the main beneficiary was deeply involved in the will’s preparation, such as instructing the lawyer or being present at the signing.
For Forgery or Invalid Formalities:
This claim attacks the legitimacy of the document itself.
- Handwriting Expert: A forensic expert who can analyse the testator’s signature and compare it to known, authentic samples.
- Witness Testimony: The testimony of the two official witnesses is crucial. If they state they did not sign the will, did not see the testator sign, or were not present at the same time, the will can fail.
- Metadata: In some cases, digital evidence from the computer that created the document can be relevant.
How to Contest a Will: The Legal Procedure
So, how to contest a will? The process is a formal legal action that depends on one crucial factor: whether a Grant of Probate has already been issued.
Phase 1: Before a Grant of Probate is Issued
If you act quickly, you can stop the executor from gaining legal control of the estate.
- File a Caveat: This is the first and most important step. Your lawyer will file a legal notice called a caveat with the Family Justice Courts.
- What a Caveat Does: The caveat is a formal objection that essentially freezes the probate application. It prevents the Court from issuing a Grant of Probate, which gives your lawyer time to gather evidence and investigate your claim.
- Executor’s Response (The “Warning”): The executor will be notified of the caveat. To move forward, their lawyer must issue a “Warning” to you (the caveator).
- Entering an “Appearance”: Your lawyer will respond to the Warning by “entering an appearance.” This is a formal document that states your interest in the estate and the grounds on which you are challenging the will.
- Legal Action: Once an appearance is entered, the executor cannot proceed without a Court order. The dispute must then be settled, either through negotiation, mediation, or a full probate action (a lawsuit).
Phase 2: After a Grant of Probate is Issued
If you discover grounds for a challenge after the Grant of Probate has been issued, the process is more difficult, but not impossible.
- Time Limit: You generally have six months from the date the Grant of Probate was issued to start a legal action.
- File a Probate Action: You cannot use a caveat at this stage. Instead, your lawyer must file a writ (an originating claim) in Court to begin a probate action. The goal of this action is to revoke the Grant of Probate.
- Statement of Claim: You must file a formal document detailing the full grounds for your challenge and all the evidence you have to support it.
- Court Trial: The case will proceed like any other lawsuit, involving affidavits, discovery of evidence, and eventually a trial where a judge will rule on the will’s validity.
Contesting a will is a complex and emotional process. The legal hurdles are high, and strong evidence is essential. If you believe a loved one’s will is invalid, you must seek legal advice quickly before the assets are distributed. For a clear and compassionate assessment of your case, speak to our experienced team at Tembusu Law.
Conclusion About Contesting A Will In Singapore
Contesting a will is one of the most challenging and emotionally difficult tasks a person can face. You are likely grieving while also feeling that a deep injustice has occurred. The process is not simple. The Court requires strong, specific evidence, and the legal hurdles are high.
You do not have to navigate this confusing journey alone. Time is a serious factor, and acting quickly before the assets are distributed is essential. If you believe a loved one’s will is invalid and does not represent their true wishes, you deserve clear, compassionate legal advice.
For a clear assessment of your case, speak to our experienced criminal lawyers and family lawyers in Singapore.
Frequently Asked Questions About Contesting A Will In Singapore
How Long Do I Have to Contest a Will?
You should act as soon as possible, ideally before a Grant of Probate is issued. If you wait too long (e.g., after 6 months from the grant), it becomes much harder, though not always impossible.
What Happens If a Will Is Declared Invalid?
If the Court declares the will invalid, it is set aside. The Court will then look for a previous valid will. If there is no previous valid will, the assets will be distributed according to the Intestate Succession Act, as if the person died without a will.
Who Can Contest a Will?
Only ‘interested persons’ can contest a will. This is typically a beneficiary from a previous will or someone who would stand to inherit under the laws of intestacy (usually a spouse or child) if the current will is found to be invalid.
How Much Does It Cost to Contest a Will?
The costs can be high and vary significantly depending on the complexity of the case and its duration. If the case goes to a full trial, the legal fees can be substantial.
Can I Be Disinherited or Left Out of a Will?
Yes. In Singapore, a person has testamentary freedom and can leave their assets to anyone they choose, including a non-family member. You can only challenge this if the will is invalid on one of the grounds mentioned above.