The "Common Law Marriage" Myth — What UK Law Actually Says

The myth, plainly

Roughly half of people in England and Wales believe that living with a partner for long enough gives them the same legal rights as marriage. It doesn't. There is no length of cohabitation — not five years, not fifteen — that automatically creates marriage-equivalent rights. The phrase "common law marriage" describes a belief, not a legal status.

If you're not married or in a civil partnership, the law treats you and your partner as two separate individuals — regardless of how long you've lived together, had children together, or referred to each other as husband and wife.

Myth vs. fact

Myth

"We've lived together for years, so I'm entitled to half the house."

Fact

Ownership depends on whose name is on the deeds and what you can prove you contributed — not how long you've lived there.

Myth

"If we split up, I'll get maintenance like a divorcing spouse."

Fact

There is no spousal-style maintenance for unmarried partners, whatever the length of the relationship.

Myth

"If my partner dies, I'll automatically inherit everything."

Fact

Without a valid will, an unmarried partner has no automatic right to inherit under intestacy rules — everything can go to blood relatives instead.

Myth

"We're basically married in every way that matters."

Fact

Emotionally, perhaps. Legally, marriage and civil partnership are the only routes to the protections that come with them.

Where the myth comes from

"Common law marriage" did have a real legal meaning centuries ago, before 1753, when marriages could be recognised without formal ceremony. That status was abolished long ago. The phrase survived in everyday language long after the legal concept disappeared — which is part of why the belief persists so stubbornly today, especially among people who've been together a long time or have children together.

What actually happens if you separate

Because there's no marital framework, your situation is governed by a mix of property law, trust law, and — if you have children — child law. In practice, that means:

Property: Ownership is decided by whose name is on the title, and by TOLATA (the Trusts of Land and Appointment of Trustees Act 1996) if there's a dispute about hidden or informal contributions.
Finances: There's no automatic sharing of savings, pensions, or income — each partner generally keeps what's in their own name.
Children: Child maintenance is handled separately through the Child Maintenance Service, regardless of whether the parents were married.
Inheritance: Without a will, an unmarried partner isn't a recognised beneficiary under the rules of intestacy.

What you can actually do about it

None of this means cohabiting couples are powerless — it means the protections have to be built deliberately rather than assumed. A cohabitation agreement or a Declaration of Trust can set out, in writing, what happens to your home and finances if you separate. Keeping a running record of who's contributed what, as you go, matters far more than most people realise — because if it's ever disputed, it's your evidence that counts, not your relationship history.

Start keeping that evidence today

The Contribution Tracker logs who's paid for what, as it happens — so you're never trying to reconstruct it from memory.

Open the Contribution Tracker

Frequently asked

No. There is no legal status of common law marriage anywhere in the UK. Living together, however long, does not create the same rights as marriage or civil partnership.

There is no length of time that creates marriage-style rights for cohabiting couples. Ten years or ten weeks together makes no legal difference to your status.

Property disputes are resolved under TOLATA based on financial contribution and agreements, not automatic entitlement. There is no spousal maintenance, and pensions are not automatically shared.

No. Without a valid will, an unmarried partner has no automatic right to inherit under intestacy rules, unlike a spouse or civil partner.

This page is general information, not legal advice.
Every situation is different, and the law in Scotland and Northern Ireland differs from England and Wales. If you're facing a real dispute, speak to a family law solicitor about your specific circumstances.