Joint Tenants or Tenants in Common, Unmarried

If you are buying a house together but you are not married, the choice between being joint tenants and tenants in common is really a choice about what happens when one of you dies. In every other respect the two of you own and live in the home the same way. The difference only shows itself at a death, and for an unmarried couple that difference can be the gap between the survivor keeping the home without a second thought and the survivor co-owning it with your relatives.

Here is the difference in one line. As joint tenants, when one of you dies the survivor automatically takes the whole property, outside the will and outside the intestacy rules. As tenants in common, each of you owns a defined share, and when one of you dies that share does not pass to the survivor automatically. It goes wherever the will sends it, or, if there is no will, wherever the intestacy rules send it, which for an unmarried couple means your blood relatives rather than your partner.

That single mechanical difference is why the question matters so much more for an unmarried couple than for a married one. This page judges the two options only on that test, what each does on death, including the uncomfortable possibility of your partner ending up owning the house alongside a relative of yours who can ask a court to sell it.

The short answer: judge them on what happens when one of you dies

Both forms of co-ownership let you buy together, share the mortgage and treat the house as jointly yours while you are both alive. Ignore any advice that compares them on anything else, because for an unmarried couple the whole decision rests on the moment one of you is gone. Ask one question of each option: if I died tomorrow, where would my share of this house go, and would my partner be secure in it?

As a joint tenant, the answer is clean. Your interest passes to your surviving partner automatically, the instant you die, by a rule called survivorship. It does not go through your will, it is not touched by the intestacy rules, and it does not wait for probate. As a tenant in common, the answer is not clean at all, and everything below is about the ways it can go wrong.

Because so much rides on getting this right at the point of purchase, it is worth reading it alongside our guide to making the same decision on completion day itself, when the paperwork is actually signed and the choice is locked in.

Joint tenants: the whole house passes to the survivor

Under a joint tenancy, the two of you do not own separate shares at all. In the eyes of the law you together own the whole, and neither of you has a distinct slice you could point to. The consequence at death is survivorship: the deceased's interest is simply absorbed by the survivor, who ends up owning the entire property outright.

For most unmarried couples who want each other to have the home, this is the simplest and safest arrangement. There is no share to fall into an estate, nothing for a relative to inherit, and no gap for the intestacy rules to fill. The survivor does not have to prove anything, buy anything out, or negotiate with anyone. The house is theirs, quickly, with only a straightforward step at the Land Registry to update the title.

There is one thing survivorship cannot do, and it is worth being honest about: because your share never passes through your will, you cannot use it to leave anything to anyone else, such as a child from an earlier relationship. A joint tenancy sends the whole house to your partner and to no one else. That is exactly what many couples want, but if you also need to provide for children, it is the reason a joint tenancy may be the wrong fit, which the next section explains.

Tenants in common: your share falls into your estate

Under a tenancy in common, each of you owns a distinct, quantified share. It can be equal, a half each, or unequal, to reflect who put in what, so one of you might hold a larger share and the other a smaller one. While you are both alive this changes very little day to day. It changes everything at death.

When a tenant in common dies, there is no survivorship. Your share is an asset of your estate, and it passes exactly as the rest of your estate passes: under your will if you made one, or under the intestacy rules if you did not. If your will leaves your share to your partner, they end up owning the whole house, and all is well. If your will leaves it to your children, or you left no will at all, your partner does not get it.

This is why a tenancy in common only works safely for an unmarried couple when it is backed by an up-to-date will that says where the share goes. The share and the will are two halves of one plan; a tenancy in common without a matching will is a plan with a hole in it. If your intention is to look after both a partner and children from the same asset, the tension between them is real, and our comparison of a life interest trust and life cover for the children sets out the two usual ways to resolve it.

The inherited stranger: where your share can actually go

The scenario that catches unmarried couples out is a tenancy in common with no will, or an old will that no longer reflects your life. Because you are not married, the intestacy rules do not recognise your partner. They hand your estate, including your share of the house, to your closest blood relatives in a fixed order: your children first, then your parents, then your brothers and sisters, and on down a defined list. Your partner is nowhere on it.

The result is stark. Your surviving partner, who lives in the house and may have paid for half of it, ends up co-owning it with whoever inherited your share: your grown-up child from a previous relationship, an estranged parent, a sibling they barely know. They now share ownership of their own home with a person who has a legal interest in it and may want their money out of it. That is the inherited stranger, and it is a direct product of choosing tenants in common without a will to match.

An unmarried partner is also not your automatic representative or heir in any other sense, which surprises people who assume the relationship speaks for itself. It does not, as our guide to why "next of kin" means nothing if you are not married explains in detail.

Who can force a sale

Co-owning with an inherited stranger would be uncomfortable but survivable if the survivor could simply carry on living there. The problem is that they may not get to decide. Anyone who holds a share in a co-owned property, including someone who has just inherited one, can apply to the court for an order for sale under the Trusts of Land and Appointment of Trustees Act 1996.

If the court makes that order, the house is sold and the proceeds split according to the shares, whether or not the survivor wants to move. The court does not rubber-stamp these applications; it weighs a set of factors, including the purposes for which the property was bought, and the welfare of any child living there. A home bought as a family home, with children in it, is not easily forced to sale. But an adult beneficiary who wants their inheritance turned into cash has a genuine route to make it happen, and the survivor may have to fight, at their own cost and expense, simply to stay in the house they already half own.

That is the real risk of a tenancy in common gone wrong: not just sharing ownership, but losing the home entirely to a sale demanded by someone who inherited a share and wants the money.

So which should you choose?

There is no single right answer, but the deciding factors are clear.

Choose a joint tenancy if what you both want is simply for each other to take the whole house on the first death, and neither of you needs to leave a share to anyone else. It is the cleaner outcome and it removes the intestacy risk entirely, because survivorship happens automatically whether or not either of you ever gets round to making a will. Making the wills anyway is still wise, but the home itself is protected by the ownership form.

Choose tenants in common if your contributions are unequal and you want that recorded, or if either of you has children from a previous relationship you want to provide for. It gives you the flexibility to split the house in defined shares and to leave your share where you choose. But you must pair it with a will that directs your share deliberately, and keep that will current, because the flexibility that helps you is the same flexibility that lets intestacy send your share to the wrong person if you do nothing.

Two practical points. First, tenants in common should sign a declaration of trust recording the shares, so there is no argument later about who owns what. Second, you are not locked in forever: a joint tenancy can be converted into a tenancy in common, a step called severance, if your circumstances change, for instance if you have a child and want to start leaving a share to them. If you are not sure which you already hold, it can be checked, and our guide on how to check whether you are tenants in common shows you where on the title register to look.

Where life cover fits the decision

Cover does not change who owns the house, but it removes the money problem that makes the ownership problem dangerous. The threat in a tenancy-in-common scenario is that the survivor cannot afford to keep the home, either because there is still a mortgage on it or because a relative has inherited a share and wants paying out. Cash solves both.

A policy sized to clear the mortgage means the home passes on unencumbered. A policy sized to match the value of the share that could be inherited means the survivor can buy that share out from whoever holds it, at a fair price, and own the whole house free of the argument. Written in trust, the payout reaches the survivor directly, outside the estate and without waiting for probate, which is exactly when the money is needed and exactly the point at which an unmarried partner would otherwise be waiting empty-handed. Making sure the payout actually goes to your partner rather than into a slow-moving estate is a step in itself, covered in our guide to ensuring your partner receives your life insurance. If you want that sum priced against your mortgage and your share, you can get life insurance quotes and have an FCA-authorised broker set it for you.

Scotland and Northern Ireland

The ideas translate across the UK, but the words and the default rules differ, so do not assume the English position is universal.

In Scotland, co-owners hold the property in common, each with a share, and there is no automatic survivorship as there is with an English joint tenancy. Instead, couples can have a survivorship destination written into the title, which passes a deceased owner's share to the survivor automatically, achieving something similar to survivorship but only if it is actually included in the deed. A separate statutory route also lets a surviving cohabitant apply to the court for a payment where their partner died without a will, but the time limit is short and the outcome is discretionary. In Northern Ireland, the concepts of joint tenancy and tenancy in common broadly mirror England and Wales, but the succession and family provision rules sit in their own legislation. Renting rather than owning raises a wholly different set of succession questions, which we cover for social tenants in our guide on whether an unmarried partner can succeed to a council tenancy.

Wherever you live, the safe combination is the same: an ownership form that matches what you actually want to happen, and a will that backs it up. The wider set of decisions unmarried couples have to make deliberately is drawn together in our guide to dependants and unusual family shapes.

Frequently asked questions

What happens to a jointly owned house when one unmarried owner dies?

It depends on how you hold it. As joint tenants, the survivor takes the whole property automatically by survivorship, outside the will and outside the intestacy rules. As tenants in common, each owns a defined share, and the deceased's share passes under their will, or, if there is no will, under the intestacy rules to their blood relatives rather than to the surviving partner.

Which should an unmarried couple choose?

A joint tenancy is simplest where you want each other to take the house outright, because survivorship happens automatically and removes the intestacy risk. Tenants in common suits unequal contributions or children from an earlier relationship, but the will then has to say who gets the share, and the survivor may end up co-owning with someone else if the will is missing or out of date. Match the ownership form to what you actually want and back it with a will.

Can the person who inherits a share force a sale?

They can apply to the court under the Trusts of Land and Appointment of Trustees Act 1996 for an order for sale, and the court weighs the purposes for which the property is held and the interests of anyone, including any child, living there. It is not automatic, but an adult who has inherited a share and wants the cash has a real route to a sale. Cover sized to buy that share out removes the argument before it starts.