Can unmarried couples buy a house together?

Yes — unmarried couples can buy a house together and qualify for a joint mortgage. Lenders evaluate co-borrowers based on their combined income, credit history, and debt-to-income ratio, not their marital status. The Equal Credit Opportunity Act prohibits lenders from discriminating based on whether you’re married.

That said, there are two decisions that work differently for unmarried couples compared to married ones: how you hold title to the property, and how each partner’s credit profile affects the loan terms. Title — the legal document that says who owns the home — is separate from the mortgage. Unmarried couples typically choose between joint tenancy, where both partners own equal shares with rights of survivorship, and tenancy in common, where ownership percentages can be split unevenly and each partner can leave their share to whoever they choose.

On the mortgage side, if one partner has a significantly lower credit score, it can affect the rate both partners pay — since lenders typically price the loan based on the lower qualifying score. Understanding these dynamics before you apply makes the process much smoother. The next step is getting pre-approved together to see exactly what you qualify for.

How a joint mortgage works for unmarried couples

When two people apply for a mortgage together, both become co-borrowers — which means both are equally and fully responsible for repaying the loan. This is true whether you’re married or not.

Lenders look at the same things for any joint application: combined gross income, combined monthly debt obligations (your debt-to-income ratio, or DTI), and both credit histories. What’s different for unmarried couples is that there’s no legal framework automatically connecting your finances the way marriage does in some states. That’s why the decisions you make about the application — and the title — matter more.

One important detail: lenders don’t simply average your credit scores. They typically pull three scores from each borrower (one from each of the three major bureaus) and use the middle score for each person. Then they use the lower of those two middle scores to determine your rate tier. So if one partner has strong credit and the other doesn’t, the loan may price as if the lower-credit borrower is applying alone.

Should you both be on the mortgage?

It depends on your situation, and there are two things to weigh.

If both of your incomes are needed to qualify for the loan amount you want, both of you need to be on the mortgage. There’s no getting around this — lenders can only count income from borrowers on the application.

If one partner earns enough to qualify alone and also has significantly better credit, it may make financial sense for that person to apply solo. A higher qualifying credit score can mean a meaningfully better interest rate. The trade-off is that the unlisted partner has no legal claim through the mortgage — which is why title decisions (covered next) become especially important in that scenario.

There’s no universal right answer. What matters is running the actual numbers with a lender before deciding. Better’s fully online pre-approval process lets both of you check your options in minutes — you can start at better.com/preapproval to see what you qualify for together.

How to hold title as an unmarried couple

The mortgage determines who’s responsible for the loan. The title determines who owns the home. These are separate documents, and for unmarried couples, the title decision deserves real attention.

There are three main options:

Joint tenancy. Both partners own equal shares of the property. If one partner dies, their ownership share automatically passes to the surviving partner — this is called the right of survivorship. Joint tenancy is straightforward and works well for couples who want equal ownership and want the home to go to their partner if something happens to them.

Tenancy in common. Each partner owns a specific percentage of the property — it doesn’t have to be equal. If one partner contributed 70% of the down payment and the other contributed 30%, tenancy in common lets you reflect that split. Crucially, there’s no automatic survivorship: if one partner dies, their share passes according to their will or their state’s inheritance laws, not automatically to the surviving partner.

Sole ownership. One person’s name is the only one on the deed. This can make sense in narrow circumstances — for example, if one partner has serious credit issues that would hurt the loan. But if the partner not on the deed contributes to mortgage payments, down payment, or improvements, they have no legal ownership claim to show for it. This is the highest-risk structure for an unlisted partner, and it should only be used after consulting with a real estate attorney.

Which is right for you depends on how you want to split ownership, what you want to happen if one of you dies, and what your state’s property laws say. A real estate attorney can help you choose the right structure before you close — and knowing what are closing costs ahead of time helps you budget for that professional guidance as part of the purchase.

What to sort out before you apply

The mortgage process itself — submitting documents, getting pre-approved, making an offer — works the same for unmarried couples as for anyone else. What’s worth sorting out beforehand are the shared decisions that will make every step smoother.

Pull your credit reports together. Before either of you applies, know where both of you stand. You can check your reports at no cost at annualcreditreport.com. If one partner’s score is significantly lower, it’s worth knowing this before a lender tells you — because it affects your rate and your options. Understanding the minimum credit score for a mortgage for the loan type you’re targeting is a useful starting point.

Align on the down payment and monthly split. How much is each person contributing to the down payment? How will you divide the monthly mortgage payment? These don’t have to be equal, but they do need to be agreed upon before you close — not after. If you’re combining finances for the down payment, know that lenders will ask for documentation of where those funds came from.

Talk through the exit scenarios. Not as a sign that the relationship won’t work — but because having a shared plan makes everything easier. If one of you wants to sell and the other doesn’t, what’s the process? If one partner loses their job and can’t cover their share of the mortgage for a few months, what happens? These aren’t dark predictions; they’re practical contingencies that every co-owner benefits from thinking through in advance.

Consider a cohabitation property agreement. This is a written document — drafted with an attorney — that spells out each partner’s ownership percentage, how shared expenses are handled, and what happens to the property if the relationship ends. It’s not a prenup; it’s a property agreement. It doesn’t prevent anything from happening, but it makes every outcome — sale, buyout, or continued co-ownership — much cleaner to navigate. If you’re buying with tenancy in common at anything other than a 50/50 split, a cohabitation agreement is especially worth having.

For a complete picture of what you’ll need at application, the documents needed for mortgage pre-approval guide covers everything both borrowers should gather before starting the process.

How your credit scores affect the loan

This is worth understanding in concrete terms before you apply together.

Lenders use a pricing structure called a loan-level price adjustment matrix — your interest rate isn’t just determined by market rates, but also by your credit score tier and loan-to-value ratio. The difference between a 679 score and a 720 score on a $450,000 loan can translate to a rate that’s meaningfully higher, costing thousands of dollars over the life of the loan.

When two borrowers apply together, the lender uses the lower qualifying score to determine pricing. So if your scores are 760 and 680, the loan will often price as though the borrower has a 680.

Example is for illustrative purposes only. Rates, payments, and total interest will vary based on credit profile, loan terms, and market conditions.

If the gap between your scores is significant, it’s worth modeling both scenarios — applying together versus the higher-credit partner applying alone — and seeing how the rate and payment compare. Understanding what determines your mortgage rate helps you see why this decision matters more than it might seem. A Better loan officer can help you run these numbers before you commit to either approach.

You’ll also want to understand the difference between a soft vs. hard credit check — a soft pull, which won’t affect your scores, can give you an early read on your options before you formally apply.

What happens to the mortgage if you break up?

This is the question most articles raise in a way that’s meant to discourage buying — but it’s actually worth knowing just as practical information.

The mortgage doesn’t automatically change if your relationship does. Both co-borrowers remain equally liable for the full loan until the mortgage is refinanced into one person’s name or the home is sold. A breakup doesn’t remove either person from the loan; that requires a new mortgage application.

The practical paths forward if the relationship ends:

Sell the property and split the proceeds. The most straightforward resolution. How proceeds are split depends on your ownership structure and any cohabitation agreement you’ve established.

One partner buys out the other. The staying partner refinances the mortgage into their name alone, pays out the departing partner’s equity, and takes sole ownership. This requires qualifying for the mortgage solo, which depends on their income and credit at that time.

Continue co-owning temporarily. This creates ongoing financial ties and is usually a short-term solution while one of the above is arranged.

Having a cohabitation agreement in place before any of this happens is what makes the process manageable rather than contentious. It doesn’t mean you’re planning to break up — it means you made a clear shared plan while you were on the same team.

FAQ

My partner and I aren’t married — can we still apply for a mortgage together?

Yes. Lenders cannot discriminate based on marital status under the Equal Credit Opportunity Act. You apply as co-borrowers, and the lender evaluates your combined income, debt, and credit histories the same way they would for any joint application. Being unmarried doesn’t reduce your chances of qualifying — it just means you have a few additional decisions to make about how you hold title to the property.

My credit score is 760 but my partner’s is 650 — should we both be on the mortgage, or just me?

This is a strategic decision worth thinking through carefully. If both of your incomes are needed to qualify for the loan amount you want, you’ll need to apply together. But if your income alone is sufficient, applying solo may get you a meaningfully better interest rate, since lenders typically use the lower qualifying score when pricing a joint loan. The trade-off is that your partner has no mortgage claim to the property unless they’re also on the title deed. Talk through this with a loan officer before deciding — the right answer depends on your specific numbers.

What’s the difference between joint tenancy and tenancy in common for an unmarried couple?

Both are forms of co-ownership, but they work differently. Joint tenancy means both partners own equal shares and have rights of survivorship — if one partner dies, their share automatically passes to the other. Tenancy in common allows for unequal ownership percentages and doesn’t include automatic survivorship, meaning each partner can leave their share to whoever they choose in a will. Joint tenancy is simpler; tenancy in common is more flexible. A real estate attorney can help you decide which fits your situation.

What happens to the mortgage if we break up after buying a house together?

The mortgage stays in both names until it’s refinanced or the home is sold — a breakup doesn’t legally change who’s responsible for the loan. Your main options are to sell the property and split the proceeds, have one partner refinance into their name alone and buy out the other’s equity, or continue co-owning temporarily while you work out a longer-term plan. Having a written cohabitation property agreement in place before you close makes any of these paths significantly easier to navigate.

Do we need a cohabitation agreement before buying a house together?

You don’t legally need one, but it’s strongly worth considering. A cohabitation property agreement is a written document — drafted with a real estate attorney — that spells out each partner’s ownership percentage, how shared expenses will be handled, and what happens to the property if the relationship ends or one partner wants to sell. It’s especially valuable if you’re buying with tenancy in common at anything other than a 50/50 split, or if one partner is contributing significantly more to the down payment.

My partner has student loans and a lower income — will that affect our approval?

It can affect the loan amount you qualify for, but it doesn’t disqualify you. Lenders calculate your debt-to-income ratio using both partners’ income and all monthly debt obligations, including student loans. A higher combined debt load or lower combined income reduces the loan amount you qualify for. The fix is understanding your numbers before you apply — know both of your DTIs individually and together, and you’ll go into the process with clear expectations. The pre-qualified vs. pre-approved guide explains the difference between an early estimate and a formal commitment.

Is it better to wait until we’re married to buy a house, or should we just buy now?

There’s no universal answer — it depends on your financial situation, your relationship timeline, and your housing market. Marriage does give you additional legal protections in some states, but it doesn’t change how a mortgage is underwritten. Unmarried couples buy homes together all the time successfully. If you’re financially ready, have sorted out the title and ownership questions, and both feel clear about the shared plan — waiting for a marriage certificate isn’t a mortgage requirement.

Buying together doesn’t require a marriage certificate — just a clear plan

Unmarried couples buy homes together every day, and the mortgage process treats you the same as anyone else. What makes it go smoothly is going in with the key decisions already made: who’s on the loan, how you’re holding title, how you’re splitting costs, and what the plan is if circumstances change.

None of that is complicated — it just requires the kind of honest conversation about finances and expectations that’s good to have before any major shared commitment.

Better’s fully online process makes it easy to check what you both qualify for before you’ve committed to anything. Both of you can see your options, run the numbers, and get a clear picture of where you stand — all without a branch visit or a formal application.