When an unmarried couple splits up, there is no division of matrimonial assets. The section 112 power that lets a court redistribute property between spouses simply does not apply, because it depends on a marriage. What decides who gets what is ordinary property and trust law: whose name is on the title, what shares were declared, and what each person can actually prove they contributed.

That makes property the hardest practical problem an unmarried couple faces. A spouse who put nothing in but ran the household for fifteen years has a claim. An unmarried partner in the same position usually has none. The good news is that this is a problem you can largely solve in advance with documentation, and a problem that becomes very expensive if you do not.

The name on the title decides the starting point

Legal ownership is what the register says. If the property is in your partner’s sole name, the starting position is that it is your partner’s property. If both names are on it, you both own it. Everything else is an argument against that starting point, and the person making the argument carries the burden.

This is a much blunter rule than most couples expect, and it is the reverse of the family law position, where the register is one factor among many. Here it is the default, and defaults win when evidence is thin.

A related trap: being on the mortgage is not the same as being on the title. People sometimes agree to service a loan on a property they do not own, believing this buys them a share. It may support a trust claim, but it does not by itself make you an owner, and in the meantime you are liable to the bank.

Declaring shares expressly, and why it usually settles everything

Where both of you are on the title, the next question is how you hold it. There are two forms in Singapore.

Joint tenancyTenancy in common
SharesNo distinct shares; you own the whole togetherDefined shares, which can be unequal
On deathSurvivor automatically takes the whole propertyYour share passes under your will, or under intestacy
Can you leave it to someone else?NoYes
Best suited toPartners who intend the survivor to take everything and contributed roughly equallyUnequal contributions, children from earlier relationships, or anyone wanting control on death

For most unmarried couples, a tenancy in common with shares expressly stated to reflect what each person actually put in is the right structure. An express declaration of shares is strong evidence of the beneficial ownership and heads off almost every argument that would otherwise arise years later. The mechanics of each are covered in the guide to joint tenancy versus tenancy in common.

If you get this decision right at purchase, you may never need any of the material below.

Resulting and constructive trusts: when the non-owner has a claim

Where you contributed but are not on the title, the law of trusts is the route to a share. Two ideas do most of the work.

A resulting trust arises where you contributed to the purchase price and there is nothing to show the money was a gift or a loan. The presumption is that you were not intending to enrich the other person, so the legal owner holds a proportionate share of the beneficial interest for you. The share broadly tracks the proportion of the purchase price you provided.

A constructive trust is broader. It can arise where there was a common intention that you would have an interest, whether express or inferred from conduct, and you acted to your detriment in reliance on it. The classic case is a partner who paid the deposit or serviced the mortgage for years on the understanding, never written down, that the home was “ours”.

Both claims succeed in real cases. Both are heard in the civil courts, on the ordinary burden of proof, with the ordinary risk that the losing party pays costs. Neither is a soft, discretionary redistribution of the kind family law provides.

What counts as a contribution

Contributions that go to acquiring the property carry the most weight:

  • The deposit or down payment, including any CPF monies used, which CPF Board records.
  • Mortgage repayments, particularly the principal, made directly and traceably.
  • Stamp duty and completion costs paid at purchase.
  • Substantial capital works that materially increase value, though these are weaker than purchase contributions.

Contributions that generally do not create an interest in property:

  • Renovation and interior fit-out. Painful, because these are often large sums, but they are usually treated as spending on how you live rather than on acquiring the asset.
  • Furniture and appliances. These are your chattels, not an interest in the land.
  • Household expenses, such as groceries, utilities, helper’s wages and school fees, even where paying them freed the owner to pay the mortgage.
  • Domestic work and childcare. Weighed heavily in a divorce as indirect contributions. Between unmarried partners, they generally count for nothing in the property analysis.

Why proving informal contributions is so hard

Trust claims are lost on evidence far more often than on law. Couples do not keep records of their own relationship, and by the time it matters the money moved years ago through accounts that have since been closed.

Typical problems: cash contributions with no trace; transfers into a joint account from which everything was paid, so nothing is attributable; a verbal promise with no witness; a partner who now characterises every payment as rent or as a gift; bank records that are no longer retrievable. Add the ordinary distortions of memory after a bitter separation and you have a case that costs a great deal to run and may still fail.

The remedies are unglamorous and effective. Pay from your own account with a clear reference. Keep CPF statements. Keep the completion statement and the loan documents. And write down, at the time, what the two of you intend, which is what a cohabitation agreement does.

HDB constraints

Public housing adds a layer that private property does not have. HDB’s schemes are built around a family nucleus, or for those buying alone the Single Singapore Citizen Scheme from the age of 35. An unmarried couple cannot ordinarily apply for a BTO flat together as a couple, and eligibility rules govern who may be listed as an owner or occupier, whether a share may be transferred, and what happens if circumstances change.

The practical consequences for unmarried couples are real:

  • You may end up with the flat in one name only, with the other paying in without ownership: the classic setup for a later trust dispute.
  • A transfer of a share between owners is not simply a private matter; HDB’s rules and any minimum occupation requirements apply.
  • Using CPF towards a property has its own rules on refunds when the property is sold or transferred, including accrued interest, which affect what cash actually comes out at the end.

Rules change and are fact-specific. Check your own eligibility and options on hdb.gov.sg and cpf.gov.sg rather than relying on general summaries.

What happens on a break-up

There is no court process that starts automatically, so the sequence is practical rather than procedural.

  1. Establish the legal position. Get the title search, the loan statements and the CPF records before you negotiate. Many disputes evaporate once people see the documents.
  2. Negotiate. Most cases end here, and should. The realistic outcomes are a sale with proceeds split, a buyout by one party who refinances the loan, or a transfer with an adjusting payment.
  3. Deal with the mortgage. A bank is not bound by your agreement. If one of you is coming off the loan, the other must qualify to refinance alone, and until that happens both remain liable.
  4. Document the settlement in a written agreement, with the transfer or sale actually completed rather than promised.
  5. Litigate only if you must. A contested trust claim in the civil courts is slow and expensive, and the costs can consume much of what is in dispute.

Where a child is involved, note that arrangements about the child go to the Family Justice Courts while the property claim does not. They are separate proceedings, which is one more reason to settle the property by agreement.

What happens on death without a will

This is the outcome that catches people hardest, because it arrives without warning.

If the property was held as joint tenants, the survivor takes the whole property by survivorship, outside the estate and outside any will. Clean, but it also means neither of you can leave a share to a child or a parent.

If the property was held as tenants in common, the deceased’s share falls into their estate. Without a will it is distributed under the Intestate Succession Act to spouse, children, parents and other relatives by a fixed formula. An unmarried partner is not on that list and takes nothing. You may find yourself co-owning your home with your late partner’s siblings.

If the property was in your partner’s sole name, the entire property passes to their relatives. You have no automatic right to remain, and any claim you have is the trust claim discussed above, now to be run against grieving family members who know nothing of your arrangements.

Two documents prevent all of this. A will directs where your share goes. Clear title documentation establishes what your share is. Neither is expensive. The wider set of protections available to cohabiting partners is set out in the overview of the legal rights of unmarried couples in Singapore.

Further reading