Mortgages with friends: joint borrowing and ownership explained

Buying with friends: what a mortgage really means

Buying a property with friends can make home ownership more achievable. Pooling deposits, combining incomes and sharing the day-to-day costs can widen the range of homes you can consider.

But a friends purchase is still a major financial commitment for everyone involved. When more than one person is on the mortgage, you’re not just sharing a property—you’re sharing responsibility. That affects affordability checks, credit files, and what happens if someone wants to sell, move out, or the relationship changes.

This guide explains the main mortgage and ownership structures used when friends buy together, plus the protections and practical considerations that can help you make clearer decisions.

Mortgage options when friends buy together

Joint mortgage (shared borrowing)

A joint mortgage is taken out by two or more borrowers who are all responsible for the repayments.

In most cases:

• each borrower’s income and credit history are considered as part of the application
• all borrowers are liable for the mortgage payments
• the lender assesses affordability across the group, rather than treating each person as completely separate

The number of borrowers a lender will consider can vary by lender and product, so it’s important to confirm the maximum group size early in the process.

Multi-borrower mortgages (group applications)

Some lenders may offer options designed for three or more applicants on one mortgage.

This can suit groups where:

• the deposit and affordability requirements are easier to meet together
• you want one mortgage arrangement rather than separate loans

Because multi-borrower options can be more limited than standard two-borrower products, it’s often helpful to clarify your group size and structure early.

Joint borrower sole proprietor (JBSP)

A JBSP arrangement is where:

• one person is the legal owner of the property (the “sole proprietor”)
• one or more other people are on the mortgage and share responsibility for the debt

This structure is sometimes used where a friend (or family member) helps with affordability, but the longer-term plan is for the property to be owned by one person.

Ownership structures: how you hold the property

Even if you take out the same type of mortgage, the way you own the property can be different. For friends, this is often where the most important decisions are made.

Joint tenants

With joint tenants, the ownership is treated as one combined share.

Typical characteristics include:

• owners are generally regarded as holding the property equally
• if one owner dies, their interest usually passes to the remaining owner(s)

This can suit groups who want the ownership to operate as a single unit long term.

Tenants in common

With tenants in common, each owner holds a specific share.

Common features include:

• shares can be equal or unequal (for example, reflecting different deposit contributions)
• each owner can usually leave their share through their will
• ownership percentages can be aligned with what each person contributes

For friends, tenants in common is often chosen when the financial contributions—and the intended outcome—are not the same for everyone.

Choosing the right structure for your group

When friends buy together, the “best” setup depends on more than just how much you can borrow.

Consider how you want to handle:

• repayments: who pays what each month, and how changes in income are managed
• equity: whether ownership should reflect equal shares or proportional contributions
• decision-making: what happens if someone wants to sell, remortgage, or make changes to the property
• long-term intentions: whether the group expects to stay together for years, or whether an exit is possible

A clear plan at the start can reduce uncertainty later—especially if circumstances change.

Legal protections worth considering

Mortgage arrangements and ownership structures work alongside legal documentation. While you can’t remove the risk of disagreements, the right paperwork can make expectations clearer.

Declaration of trust

A declaration of trust sets out the intended ownership shares in legal terms.

It can help to:

• document each person’s share of the property
• support clarity if someone wants to sell their interest
• reduce misunderstandings about “who owns what”

Co-ownership agreement

A co-ownership agreement is often used to cover practical expectations alongside the title arrangements.

It may address topics such as:

• how household costs are shared
• who pays for maintenance and repairs
• how decisions are made if there’s disagreement
• what happens if someone wants to exit the arrangement

A co-ownership agreement can’t prevent conflict, but it can make it easier to manage.

The risks of buying with friends

A friends purchase can work well, but it’s important to understand the potential downsides.

Joint liability and repayment pressure

Where borrowers are jointly responsible for the mortgage, if one person can’t meet their share, the others may need to cover the shortfall to avoid arrears.

This can create financial strain, particularly if the person who falls behind is also unable to contribute later.

Credit and affordability knock-on effects

Mortgage payments are typically reported to credit reference agencies. Missed payments can affect credit records.

In a joint setup, the financial behaviour of one borrower can influence the overall credit picture for the group. That matters not only during the application, but also when anyone later applies for other credit.

Disputes over money and decisions

Even with good intentions, disagreements can arise about:

• mortgage payment timing
• whether to remortgage or sell
• maintenance costs and upgrades

Clear agreements can reduce the risk, but they can’t eliminate it.

Relationship changes and exit complexity

If circumstances change—financially or personally—leaving the arrangement can be complicated.

How straightforward it is to unwind depends heavily on:

• the ownership structure (joint tenants vs tenants in common)
• the legal documents in place
• how the mortgage is handled if someone exits

Practical considerations before you apply

Before choosing a mortgage structure, it helps to align on the fundamentals:

• who will be on the mortgage
• who will be on the title
• how ownership shares will be set and why
• how repayments will be managed if someone’s income changes
• what happens if someone wants to leave the arrangement

If you can agree these points early, you’re more likely to avoid costly misunderstandings later.

Schemes that may be relevant (depending on circumstances)

Some government-backed routes can help reduce the upfront barrier to buying, but eligibility and suitability depend on the property and the buyers’ circumstances.

Examples that may be relevant in a shared purchase context include:

• Shared Ownership: buying a share of a home and paying rent on the remainder
• First Homes: new-build homes sold at a discount to eligible buyers

Whether these routes can work with friends depends on the specific rules that apply.

Summary

Mortgages with friends can be a sensible way to buy sooner, but they require careful planning.

The key decisions usually involve:

• the mortgage structure (joint mortgage, multi-borrower, or JBSP)
• the ownership setup (joint tenants vs tenants in common)
• the legal protections that clarify deposits, shares and exit expectations

Understanding the risks—particularly joint liability and the complexity of exits—helps everyone involved make more informed choices about buying together.