Unmarried couples and property after separation: what changes if you were never married?

Common law marriage

GOV.UK is clear that common law marriage does not exist in England and Wales. Living together for a long time, sharing bills, having children or calling each other partners does not automatically create the same rights as marriage or civil partnership.

That does not mean an unmarried partner can never have a claim. It means the claim is usually based on property law, trusts, contract-style agreements or child-related provision, rather than the broad financial powers used on divorce.

Joint owners

If both people are registered owners, start with the Land Registry title and any declaration of trust. The documents may show whether the property is held as joint tenants or tenants in common, and whether unequal shares were recorded.

If the documents say the shares are equal, it can be difficult to argue later that the split should be different. If the documents record unequal shares, that is usually a powerful starting point. Problems often arise when one person paid a larger deposit but no declaration of trust was signed.

If one person owns the home

If the home is in one person’s sole name, the other person does not automatically become an owner because they lived there or contributed to general household bills. A claim may still be possible, but it usually needs evidence of a shared intention that they would have an interest in the property, plus reliance or contribution.

Relevant evidence might include written messages about ownership, mortgage discussions, payments towards the deposit, direct mortgage payments, renovation costs, or documents showing that both people treated the property as jointly owned.

Contributions and evidence

Not all contributions carry the same weight. Paying towards food, utilities or ordinary living costs may not prove a property interest. Paying part of the deposit, mortgage capital, major renovations or an agreed lump sum may be more significant, depending on the evidence and the intentions at the time.

Build a timeline. Record when the property was bought, who paid what, what was said about ownership, when payments changed, what improvements were made, and whether anything was put in writing. Bank statements and messages often matter more than memory.

Cohabitation agreements

A cohabitation agreement can set out how property, bills, debts and separation issues will be handled. A declaration of trust can record ownership shares in a property. These documents are much easier to put in place at the start than to reconstruct after a breakup.

For couples buying together, the key questions are blunt but useful: who owns what share, what happens if one person pays more later, who can force a sale, how will sale costs be paid, and what happens if one person wants to stay?

Children and housing

Having children together does not turn cohabitation into marriage. However, children can affect practical arrangements, child maintenance and sometimes child-related financial applications. Housing stability may be relevant, but it does not automatically rewrite property ownership.

Keep child arrangements and property issues distinct in your records. Mixing them together can make both disputes harder to resolve.

The short version

Unmarried partners do not get automatic divorce-style financial rights. Property disputes usually depend on ownership documents, intentions, contributions and evidence. If buying together, record the arrangement clearly before money changes hands.

Nothing in this guide is legal advice for your specific situation.

Related guides

• Financial arrangements on divorce or separation
• Child maintenance after separation
• GOV.UK: marriage and civil partnership rights

All resources