When you were younger, you’d talk to your friends about starting a band or opening a bar. Maybe you even thought of names. (Who doesn’t want to watch Quality Used Cars play bad ‘80s covers at a “down to earth mixology bar” named The Rye Dive?) But life happened, and now you have a different conversation with those same people about buying a house with a friend.
The housing market seems like an exclusive club where you don’t have shoes expensive enough to get past the bouncer. So you and your closest friend run the numbers and find out that combined, your two incomes could get you into a house years before you could manage it alone.
Desperate economic times—or “total dumpster fire” is more accurate—call for creative solutions. And co-buying a house is one. But can friends buy a house together? And, given all the legalities and large, long-term financial commitment, is it a good idea to buy a house with a friend?
Yes. You can do it. And we’ll tell you exactly how. But “is it a good idea” is something only you can figure out after diving into all the information about buying a house with a friend waiting for you below.
TL;DR
Yes, you can legally buy a house with a friend—no marriage or family relationship required. The real work is picking an ownership structure (Tenants in Common gives the most flexibility for unequal contributions), writing a cohabitation agreement that spells out your exit strategy before you need it, and agreeing on the split for ongoing costs beyond the mortgage. Get those three things right, and co-buying a house with a friend is a legitimate way to build equity years earlier than going it alone.
Yes, co-buying a house with a friend is legal—but here’s the longer answer
Buying a house with a friend is completely legal. There’s no lending rule anywhere that requires co-buyers to be married, related, or more than complete randos who found each other on Craigslist. For a standard conventional loan, “co-borrower” just means co-borrower.
There are a few things you need to know going into the process: your credit scores, incomes, and debt-to-income ratios. All of those numbers get considered by the lender, and your loan terms are generally set based on whichever of you has the weaker financial profile. That’s not a dealbreaker, but it’s worth knowing before you start touring houses. It could change what “affordable together” means.
How you’ll actually own the house together
This is the single most important decision in the whole process, and it’s the one most first-time co-buyers skip past because it’s a little complicated and they just want to get to the fun part. There are two real structures—and a bonus third option—to choose from, and they behave very differently.
So let’s break down tenants in common vs joint tenancy—and talk a little bit about living trusts.
Tenants in Common (TIC)
In this structure, each of you owns a defined share. And it doesn’t have to be a 50/50 split. If you put down 60 percent of the down payment, your tenants in common agreement can reflect that. Your share passes to your heirs when you die, not automatically to your co-owner. For friends and unmarried co-buyers, TIC is generally the most flexible option—and the one most people end up choosing.
Joint Tenancy and Joint Tenants with Right of Survivorship (JTWROS)
This agreement means equal 50/50 ownership, and if one of you dies, your share transfers automatically to your friend and co-buyer—without the painful probate process. It’s cleaner in that one specific scenario, but far less flexible if your contributions to the house aren’t equal.
Bonus: Living Trusts
Either or both of you hold the title through a revocable trust, which is a legal agreement you basically can change or cancel any time while you’re alive. This option adds estate-planning flexibility and lets you spell out exactly what happens if either person dies or becomes incapacitated. It requires more setup, but also yields more precision.
At a Glance: Tenants In Common vs Joint Tenancy vs Living Trusts
| TIC | JTWROS | Living Trust | |
|---|---|---|---|
| Benefits | |||
| Ownership split can match unequal contributions | ✓ | ✓ | |
| Avoids probate for your share when you die | ✓ | ✓ | |
| Automatically transfers specifically to your co-owner (not just to whoever you name) | ✓ | ||
| Your share passes to your own heirs, not automatically to your co-owner | ✓ | ✓ | |
| You can sell, transfer, or mortgage your share independently, without your co-owner’s consent | ✓ | ||
| The most common choice among friends and unmarried co-buyers | ✓ | ||
| No separate ownership agreement needed for the structure to work | ✓ | ||
| Lets you spell out exactly what happens if either of you dies or becomes incapacitated | ✓ | ||
| Keeps your estate details out of the public probate record | ✓ | ||
| Can be changed or canceled anytime while you’re alive | ✓ | ||
| Drawbacks | |||
| Requires equal (50/50) ownership, even if your contributions to the house weren’t | ✓ | ||
| Transferring your share unilaterally ends the survivorship arrangement (it becomes TIC) | ✓ | ||
| Requires more setup | ✓ |
None of these structures for buying a house with friends are objectively “correct.” They’re just different tools for different situations, so you can choose what fits best for now and the future. It’s worth thought and discussion, though, because the wrong pick has real consequences later on—at resale, or if there’s a death—when it’s harder to fix.
The document you actually need (so don’t skip it)
The single most protective thing you can do isn’t picking the right ownership structure. It’s writing a co-ownership or cohabitation agreement for homebuying. This kind of document covers who owns what, how expenses are split month to month, and—the part everyone avoids thinking about—the exit strategy.
Your agreement should answer these questions in plain terms before you ever need the answer under pressure:
- What happens if one of you wants to sell and the other doesn’t?
- What happens if one of you can’t cover your share of the mortgage for a stretch?
- How is a buyout priced, if one of you wants to keep the house solo?
Skipping this document doesn’t mean you’re keeping it casual. It just creates confusion and potential drama down the road, leaving everyone with zero protection at exactly the moments it matters most—a falling out, job loss, or death. Nobody drafts this agreement thinking they’ll need it. That’s why you draft it anyway.
What co-buying costs you, beyond the mortgage
Compared to renting or going solo, co-buying is a legitimate financial strategy, not a workaround you’re settling for. Combining resources to build equity years earlier than either of you could alone is the math working exactly as intended. But there’s a few more numbers to figure out.
The down payment and the monthly mortgage are the obvious splits. Property taxes, insurance, and ongoing maintenance and repair costs—a ceaseless font of joy for homeowners—need their own explicit agreement. The water damage from a leaky pipe is enough of a headache. Don’t add to it with a discussion about how the costs get divided.
So, now the big question: is it a good idea to buy a house with a friend?
An honest answer to this question isn’t about whether your friendship is strong enough. It’s totally about alignment on the boring stuff: how long you both plan to stay in the house, how much risk either of you can tolerate, and what happens if your paths diverge. Maybe one of you meets a partner or gets a job offer across the country. Or someone finally has enough of the world and decides to chase their dream of being a hermit living behind a waterfall.
The pros and cons of buying a house with a friend—financial savings, early equity, and saying goodbye to paying high rent vs. extra paperwork, tough conversations, and thinking about death, to name a few—might have you leaning one way or another. But buying a house with a friend isn’t just the backup plan for people who couldn’t do it “the normal way.” It’s a real strategy that works if the numbers do and the paperwork does its job.
Just remember: a strong friendship and a well-documented agreement don’t offer the same level of protection. You genuinely need both, and it’s the agreement, not the friendship, that will do the heavy lifting if things get complicated. It doesn’t need a traditional buyer profile to be a good investment.
So get the structure right, get the agreement in writing, and then you can start asking your other friends if they’d like to help you both move.
Quick answers to your questions
Can you buy a house with a friend if you’re not married? Yes. There’s no lending requirement that co-buyers be married or related. For a conventional mortgage, you’re both simply co-borrowers, each considered on your own credit, income, and debt-to-income ratio.
What are the pros and cons of buying a house with a friend? This table breaks it down:
| Upsides | Downsides |
| You can afford more house, sooner | You’re legally and financially tied to another person’s credit, income, and life decisions |
| You start building equity years earlier than going solo | More paperwork |
| You split costs that would otherwise eat your whole paycheck | Harder conversations about money |
| Planning for what happens if one of you dies or wants out |
None of the negatives make buying a house with a friend a bad idea. None of the positives make it an automatic yes. Weigh the pros and cons and make your decision. If it’s a yes, creating the ownership structure and cohabitation agreement are not optional.
What’s the best ownership structure for co-buying a house? For most friends or unmarried co-buyers, Tenants in Common (TIC) offers the most flexibility, since it allows unequal ownership shares tied to actual contribution amounts. Joint Tenancy (JTWROS) is best for equal ownership with automatic survivor transfer. You can also establish living trusts, which add more estate-planning precision for those who want it.
Do you need a legal agreement to buy a house with a friend? You’re not legally required to have one, but skipping it is not the move. Not having a cohabitation or co-ownership agreement is probably the single biggest risk you’re taking in the whole process. It’s paperwork worth doing because it protects both of you if the relationship changes, a payment gets missed, or one of you wants out for any reason.
How does a mortgage work when co-buying with a non-spouse? Lenders evaluate both borrowers’ credit, income, and debt-to-income ratios. Then loan terms are typically set based on the weaker of the two financial profiles. It works the same mechanically as any co-borrower situation, because marital status isn’t a factor in the underwriting. And you can split up the mortgage and pay it however works best for you both.
*Disclaimer: This is general information, not legal or financial advice. Talk to a real estate attorney or lender about your specific situation before you sign anything.