Buying With a Partner: Joint Mortgages, Tenants in Common, Legal Implications

Buying a Home Together: The Legal Structures

When you buy a property with a partner (married, unmarried, business partner), you need to decide how you'll own it legally. This decision affects what happens to your share if the relationship ends, how the property is inherited, and what happens if one of you defaults on the mortgage.

There are two main structures: joint tenancy and tenants in common. Most people end up as joint tenants by default, but many should be tenants in common instead.

Joint Tenancy: The Default

How It Works

You and your partner own the property as one legal unit. You both own the whole property, not half each. There's no distinction between your shares.

Key Features

• Automatic survivorship: If one owner dies, their share automatically passes to the other owner(s)
• Equal rights: Both owners have equal rights to the whole property
• Cannot be willed: Your share does not form part of your estate, it automatically goes to your co-owner
• Indivisible ownership: You can't sell your "half" separately

Example Scenario

You and your partner buy a property as joint tenants. If your partner dies, their share automatically becomes yours. You now own the property outright. This happens regardless of what's in their will.

Advantages

• Inheritance is automatic (no probate delays)
• Simple if the relationship continues
• Protects against one party trying to will their share to someone else

Disadvantages

• If the relationship breaks down, the property is jointly owned, must be sold or one buys the other out
• One party cannot exclude the other from inheritance
• If you have children from previous relationships, you may want your share to go to them, not your current partner

Tenants in Common: Controlled Ownership

How It Works

You and your partner each own a distinct share. You could own 50/50, or 60/40, or any other split. Your share is separate and independent.

Key Features

• Separate shares: You own a defined percentage (e.g., 50% or 60%)
• No survivorship: If you die, your share forms part of your estate and goes to whoever you name in your will
• Unequal ownership: You can own different percentages reflecting different contributions
• Can be willed: You decide who inherits your share

Example Scenario

You and your partner buy a property as tenants in common, with you owning 60% and them 40% (because you contributed more to the deposit). If your partner dies, their 40% share forms part of their estate and goes to whoever they named in their will, not necessarily to you.

Advantages

• Reflects different financial contributions
• Your share goes to whoever you want (your will, not automatic to your partner)
• Protects you if the relationship ends, you keep your share percentage
• Better for unmarried couples

Disadvantages

• If one owner dies, the property cannot be inherited automatically, requires probate
• Requires clear documentation of ownership percentages and contributions
• More complex to administer if relationship breaks down

Joint Tenancy vs Tenants in Common: Quick Comparison

Joint Mortgages: Liability

A joint mortgage means both of you are legally responsible for the entire debt.

Key Point: Joint and Several Liability

If the mortgage is for £200,000, you're both liable for the full £200,000. If your partner stops paying and disappears, the lender can pursue you for the entire debt.

This is true even if you agreed between yourselves that each would pay half. The lender doesn't care about your internal arrangements, they can chase whoever they choose.

Default Scenario

If your partner stops paying the mortgage, the lender can:

• Pursue you for the entire debt
• Damage your credit score
• Potentially repossess the property
• Sue you for any shortfall if the property is sold

You have no protection because both names are on the mortgage.

Protecting Your Contributions: The Declaration of Trust

If you contribute different amounts to the deposit but want to protect your contributions, use a Declaration of Trust.

What It Does

A Declaration of Trust is a legal document that states:

• Who owns what percentage of the property
• What happens if the property is sold
• What happens if the relationship ends

Example

You contribute £30,000 to the deposit and your partner contributes £20,000 on a £200,000 property. You could declare that you own 60% and they own 40%. If the property sells for £250,000, you get £150,000 and they get £100,000 (reflecting your contributions plus growth equally).

Why It Matters

Without a Declaration of Trust, if the relationship breaks down, there's no clear agreement about who owns what. This leads to expensive legal disputes. A Declaration of Trust documented upfront avoids this.

Cost

A solicitor can prepare a Declaration of Trust for £150 to £500. This is cheap insurance against future disputes.

What Happens If the Relationship Ends: Married Couples

If you're married, the property is usually considered a matrimonial asset. On divorce, it's typically split according to the Family Law Act, which aims for a fair division (not necessarily 50/50).

The court considers:

• Both parties' contributions (financial and non-financial)
• Income and earning potential
• Care of children
• Standard of living during the marriage

What Happens If the Relationship Ends: Unmarried Couples

Unmarried couples have less legal protection. The property belongs to whoever's name is on the title (or the percentages if tenants in common).

If one person contributed significantly but isn't on the property deed, they have limited legal recourse unless there's a Declaration of Trust or proven agreement.

This is why a Declaration of Trust is so important for unmarried couples.

Buying Differently: One Person On Mortgage, Both On Title

Some couples structure it with one person on the mortgage and both on the property title. This can work if:

• One person has better credit or income
• You want to limit joint liability
• You want to reflect unequal financial contributions

The person on the title but not the mortgage is still an owner, they have rights to the property but aren't liable for the debt.

Caution: This requires careful documentation. The lender may have an interest in who actually owns the property, and the co-owner not on the mortgage has no legal claim to the equity if things go wrong.

Key Takeaways

• Joint tenancy is the default, but not always best
• Tenants in common is better for unmarried couples, unequal contributions, or if you want your share to go to someone specific
• Joint mortgages mean both people are liable for the entire debt
• A Declaration of Trust protects you if the relationship ends or one person dies
• Different contributions should be reflected in ownership percentages
• Get legal advice before buying, it's cheaper than disputes later