Co-Buying a Home in 2026: A Guide for Friends and Family

The $440,000 Problem

The median existing-home price hit $440,600 in June 2026, an all-time high. To afford a typical home, you need a household income of roughly $110,000 a year, according to Redfin. The median U.S. household earns about $87,600. That $22,000 gap has been narrowing, but for millions of would-be buyers it still slams the door shut.

People are finding a side entrance. According to CoBuy's 2026 National Report, 31.5% of all U.S. home purchases now involve co-buyers, up from 25% in 2021. Sixty-four million Americans co-own a home with someone they're not married to. The average group size is 3.7 people.

A friend of mine bought a duplex with her sister last year. They split the down payment, qualified for a bigger loan together, and each took a unit. Neither could have swung it alone. Their story is increasingly common.

Who's Actually Doing This?

You might picture co-buying as a group of twentysomethings pooling cash for a starter house. The reality is wider. One in four co-buyers is over 40, according to CoBuy's data. Multi-generational households have hit record levels: adult children teaming up with parents, siblings combining resources, unmarried partners merging incomes.

The motivations have been remarkably stable. Financial reasons rank first (pooling a down payment, splitting the mortgage). Social reasons come second (people wanting to live near the people they care about). The desire to own rather than rent is third. That ranking hasn't shifted in five years of CoBuy's surveys.

The finances often surprise people, too. Among co-buyers on CoBuy's platform, nearly half report household incomes above $100,000, and 93% have credit scores above 700. These aren't last-resort buyers scraping together what they can. They're people making a calculated choice to stretch their purchasing power into neighborhoods and properties they couldn't reach on a single income.

Why Friend Groups Struggle

More than 60% of co-buying groups that start the process never finish it. The sharpest drop-off happens among friends.

CoBuy's data shows that 61% of co-buyers plan to purchase with friends. But among people who actually own together, friends account for just 46%. That 15-point gap between aspiration and reality repeats year after year in the data.

Family groups move in the opposite direction. They represent 33% of co-buyers at the planning stage and rise to 37% among actual co-owners. Family relationships tend to come with shared financial history, estate planning, and geographic stability. Friends have to construct all of that from zero, and life has a way of reshuffling the deck. Someone gets a job offer in another city. A relationship changes living plans. What felt like a sure thing at brunch dissolves over six months of logistics.

This doesn't mean friends can't co-buy successfully. They're still the largest co-buying segment by a wide margin. But friend groups need more structure upfront, not less, precisely because they lack the built-in scaffolding that family provides.

Picking the Right Title Structure

Before you sign anything, you need to decide how you'll hold title to the property. This decision shapes everything from how equity is split to what happens when someone leaves or dies.

Tenants in Common (TIC)

Each owner holds a specific percentage that can be unequal (60/40, 70/15/15, whatever matches contributions). You can sell or transfer your share independently. When you die, your share goes to your heirs, not the other owners.

This is the most flexible option for non-married co-buyers, and the most popular. The risk: if one owner sells their share to a stranger, the remaining owners may find themselves co-owning with someone they've never met. A solid co-ownership agreement can prevent this by requiring a right of first refusal.

Joint Tenancy with Right of Survivorship (JTWROS)

Everyone holds an equal share. When one owner dies, their portion automatically transfers to the surviving owners, skipping probate entirely.

The simplicity is appealing, but the rigidity can cause problems. If you put up 70% of the down payment and your co-buyer put up 30%, you'd still each own 50% under joint tenancy. For most friend or family arrangements with unequal contributions, tenants in common plus a strong written agreement is the safer path.

Talk to a real estate attorney before committing to either structure.

The Document That Saves Everything

Ninety-six percent of co-buyers say they need help creating a co-ownership agreement, according to CoBuy. Most never get one.

That's a problem. Without a written agreement, any co-owner can force a sale through a legal process called partition. Partition cases typically cost $25,000 to $100,000 in attorney fees, drag on for 6 to 18 months, and often result in the property selling at 15% to 25% below market value. Everyone loses.

A co-ownership agreement drafted by a real estate attorney costs $1,500 to $3,000. Compare that to the cost of a partition suit and the math is obvious.

Your agreement should address four areas.

First, money. Who pays what share of the mortgage, taxes, insurance, and maintenance? What happens if someone misses a payment? How will you handle a $15,000 roof repair that nobody budgeted for?

Second, exit rules. What triggers a buyout? How will you value the property (appraisal, agreed formula, or some other method)? Can remaining owners buy out a departing owner before that person sells to an outsider? How long does the buyout process take?

Third, decisions. Who handles routine maintenance calls? What requires everyone's approval (selling, refinancing, a major renovation)? How do you break a tie?

Fourth, life changes. What happens when an owner gets married, has a child, or dies? Can someone rent out their portion of the home? What if an owner moves out but wants to hold on to their ownership stake?

Writing all of this down feels like planning for failure. It's actually planning for reality.

Getting the Mortgage

Lenders don't require co-borrowers to be married or related. Friends, siblings, parents and adult children, unmarried partners: all can apply together for a mortgage.

Fannie Mae caps conventional loans at four borrowers. Freddie Mac allows up to five. For most groups, this is plenty of room.

The catch is credit scores. Lenders use the lowest middle credit score among all borrowers to set the interest rate. If three of you have 780 scores and one person has a 620, the entire loan gets priced off that 620. Screen your group's credit profiles early, before you start shopping for houses.

Everyone on the loan fills out a full mortgage application. The lender verifies income, employment, and debts for each borrower individually.

One question worth discussing with your attorney: should all co-owners be on the mortgage, or just some of them? Sometimes the owners with the strongest credit carry the loan while everyone goes on the title. This can improve loan terms, but it creates a mismatch between who owns the property and who's legally responsible for the debt. Get professional guidance before going this route.

Five Things That Separate Successful Co-Buys from Disasters

Talk about money before you talk about houses

Have a candid conversation about income, debt, savings, credit scores, and financial goals. If that conversation feels too awkward to have, pay attention to that discomfort. It's telling you something about the group's readiness.

Hire a real estate attorney early

Not when problems surface. Before you start looking at listings. A $1,500 to $3,000 co-ownership agreement is cheap compared to a $75,000 partition lawsuit.

Plan for the exit from day one

Nobody enjoys imagining the arrangement falling apart. Your agreement still needs buyout terms, timelines, and a method for valuing the property. Remember that 60% of co-buying groups don't make it to closing. Even groups that do close will face changes over time.

Keep finances transparent

Set up a shared account for housing expenses. Track every contribution. A spreadsheet works fine. So does any number of expense-splitting apps. The moment someone starts quietly wondering whether their co-owner is pulling their weight, trust begins to crack.

Get independent advice

Each co-buyer should consult their own financial advisor or attorney, separate from any shared counsel. Individual interests sometimes diverge from the group's, and that's perfectly normal. Better to surface those differences at the planning stage than at the closing table.

The Practical Takeaway

Co-buying is no longer unusual. Nearly a third of home purchases involve it, and 64 million Americans already live this way. For many people priced out of homeownership on their own, pooling resources with someone they trust is a real path to equity and stability.

But pooling money is the easy part. Pooling lives is where things get complicated. The groups that make it treat co-ownership the way you'd treat a business partnership: written agreements, clear financial rules, and a plan for what happens when circumstances change.

If you're considering it, start with the hard conversations. If your group can talk openly about money, exits, and worst-case scenarios, you're probably ready to start looking at houses together.