Will Writing Singapore: Costs, Requirements & How to Avoid a Contested Estate

Will writing is the process of legally documenting how you want your assets distributed after death, who should be your executor, and who should be the guardian of your minor children, governed in Singapore by the Wills Act 1838.

Not financial advice. All figures for educational reference only. Data as at August 2026. Last updated: August 2026.

Key Takeaways

• A valid Singapore will requires the testator to be at least 21 years old, of sound mind, and to sign the will in the presence of two witnesses who are not beneficiaries or their spouses.
• Dying without a valid will (intestate) means your estate is distributed according to the fixed formula in the Intestate Succession Act 1967, which may not match your actual wishes — for example, unmarried partners receive nothing.
• Muslims in Singapore are generally governed by Muslim inheritance law (faraid) for a portion of their estate rather than the Wills Act, though a wasiat (Islamic will) can still direct up to one-third of the estate.
• Will-writing costs in Singapore range widely: free-to-low-cost DIY templates, S$89–S$250 online DIY-assisted services, S$500–S$800 professional will-writing firms with custody, and S$300–S$5,000+ for lawyer-drafted wills depending on complexity.
• CPF savings and most insurance payouts are NOT covered by your will — they pass via separate CPF Nomination and insurance nomination schemes, so a complete estate plan needs both a will and up-to-date nominations.

What Is Will Writing Singapore?

A will is a legal document that takes effect only upon death, directing how your estate (property, savings, investments, and personal effects that pass through probate) should be distributed, who should administer the estate as executor, and who should care for any minor children as guardian. In Singapore, the formal requirements are set out in the Wills Act 1838: the testator must be at least 21 years old and of sound mind, and the will must be in writing, signed by the testator, and witnessed by two people simultaneously present, neither of whom (nor their spouses) can be a beneficiary under the will.

Without a valid will, your estate becomes “intestate” and is distributed strictly according to the formula in the Intestate Succession Act 1967 — a fixed statutory split between spouse, children, parents, and siblings that takes no account of your actual relationships or wishes, and leaves unmarried partners, stepchildren, and charities with nothing.

Muslims in Singapore are a notable exception: under the Administration of Muslim Law Act, inheritance generally follows faraid (Islamic inheritance law) for the estate rather than the Wills Act, though a Muslim may still make a wasiat (Islamic will) to direct up to one-third of the estate to beneficiaries outside the faraid formula, such as a stepchild or charity.

How Does Will Writing Singapore Work in Singapore?

Most Singaporeans choose between three routes to write a will: free or low-cost DIY templates (including free options such as the OCBC Will Generator or MoneyOwl’s guided tool), paid online will-writing services (roughly S$89–S$250 for DIY-assisted drafting, or S$500–S$800 for a professional will-writing firm that also offers document custody), or a lawyer-drafted will (roughly S$200–S$800 for a simple will, rising to S$1,500–S$5,000+ for complex estates involving overseas assets, business interests, or embedded trusts). A key advantage of using a lawyer is professional indemnity insurance covering drafting errors — a protection non-lawyer will-writing services typically do not carry.

Once signed and witnessed, the original will should be stored somewhere your executor can find it — either with a solicitor, a will-writing firm’s custody service, the Wills Registry maintained by the Insolvency and Public Trustee’s Office (a voluntary registration of where your will is kept, not the will’s contents), or a secure location known to your executor. On death, the executor applies to the Family Justice Courts for a Grant of Probate before the estate (excluding CPF and most insurance, which pass via separate nomination schemes) can be legally distributed.

It is important to update a will after major life events — marriage in Singapore automatically revokes an existing will (unless the will was made in contemplation of that specific marriage), while divorce does not automatically remove an ex-spouse as executor or beneficiary, meaning outdated wills are a common and avoidable source of disputes.

Will Writing Singapore Example

A 45-year-old Singaporean with a spouse, two children, an HDB flat, and a modest investment portfolio uses an online will-writing service for S$150. The will names her spouse as sole executor, splits the estate 50% to the spouse and 25% to each child (overriding the different default intestacy split), and names her sister as legal guardian for the children should both parents pass away simultaneously. Separately, she updates her CPF nomination and her term life insurance nomination to align with the same intentions, since neither is automatically covered by the will itself.

Advantages of Will Writing Singapore

Your assets go to who you actually choose. A will overrides the rigid statutory intestacy formula, letting you provide for unmarried partners, stepchildren, close friends, or charities who would otherwise receive nothing.

You choose your executor and guardian. Without a will, the court decides who administers your estate and, in the worst case, who raises your children — decisions best made by you, not left to statutory default or family dispute.

It can speed up estate administration. A clear, unambiguous will reduces the chance of disputes among beneficiaries, which is one of the most common causes of probate delays in Singapore.

It’s inexpensive relative to the protection it provides. Even a lawyer-drafted will for a modest estate typically costs a few hundred dollars — a small price for avoiding the Intestate Succession Act’s rigid default outcome.

Risks and Limitations

A poorly drafted or DIY will can be successfully challenged. Ambiguous wording, missing witness formalities, or failure to account for all assets can lead to a will being partially or wholly invalidated, defeating its purpose.

Marriage automatically revokes an existing will. Many Singaporeans do not realise their pre-marriage will becomes void upon marriage unless it was specifically made in contemplation of that marriage, silently reverting them to intestacy.

A will does not cover everything. CPF savings, most insurance policy proceeds, and jointly-held property (which usually passes by survivorship) generally fall outside your will and need separate nomination or planning.

Outdated wills cause real disputes. Failing to update a will after divorce, new children, or asset changes is one of the most common causes of contested estates and family conflict in Singapore probate cases.

DIY vs Will-Writing Firm vs Lawyer

Source: Compiled from published rate ranges on SingaporeLegalAdvice.com, EstatePlanner.sg and Terris.sg (2026); actual quotes vary by provider and estate complexity.

The Bottom Line

For Singapore investors, will writing is one of the highest-value, lowest-cost pieces of financial planning available — a few hundred dollars and an afternoon of your time can prevent your family from being bound by the Intestate Succession Act’s one-size-fits-all formula.

Frequently Asked Questions

Related Terms

• Estate Planning Singapore
• CPF Nomination vs Will Singapore
• Living Trust Singapore