Buying a home with your parents: how multigenerational mortgages work

Should you buy a home with your parents?

Some young adults can lower the barriers to homeownership by partnering with an established co-borrower, and parents can be ideal borrowing partners.

But this kind of partnership can introduce good and bad into the equation. Whether you're the parent or the adult child in this scenario, thinking through the loan before applying is a must.

...in as little as 3 minutes — no credit impact

Why more families are buying homes together in 2026

Multigenerational home buying has been climbing for years, but 2026 has marked an inflection point. According to recent industry data, about 17% of home purchases this year are for multigenerational living — the highest share since 2013.

Three forces are driving this.

• Affordability. With current mortgage rates in the mid- to high-6% range and median home prices above $400,000 in many markets, a single income often isn't enough to qualify for the home a buyer actually wants. Pooling two generations' incomes changes that math materially.

• Demographics. The oldest baby boomers are turning 80 this year. Millions of families are rethinking living arrangements, not just out of financial necessity, but to provide care, share childcare responsibilities, and keep extended families connected.

• Adult children are staying home longer. Student debt, elevated rents, and a frozen starter-home market have made independent living harder for people in their 20s and early 30s. Co-buying with a parent can be the most practical path to ownership for both generations.

How a multigenerational mortgage works

When two or more people buy a home together, each person who signs the mortgage is a co-applicant on the mortgage. Here's how lenders evaluate the application.

All co-borrowers' incomes are counted toward the total qualifying income, which increases the loan amount you're eligible for.

But all co-borrowers' debts also factor into the debt-to-income ratio (DTI), which is the percentage of gross monthly income that goes toward debt payments. A parent who carries significant debt could hurt more than they help when it comes to qualification for the new loan.

Credit scores work differently. Most conventional lenders use the lowest median score among all borrowers for rate and eligibility purposes. If your credit is 760 but your parent's is 680, the lender prices the loan as if the borrower is a 680.

Here's a simplified example of how combining incomes affects purchasing power:

Scenario	Annual income	Est. max loan (at 6.40%, 43% DTI)
One borrower	$90,000	~$430,000
Two borrowers (combined)	$150,000	~$715,000

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

The numbers above show the potential power of co-buying: combined income can unlock significantly more purchasing power.

Whether that matters for your situation depends on your target price point, both parties' debts, and the local market.

Co-borrower vs. co-signer — what's the difference

These two terms are often confused and the distinction matters. A co-borrower vs. cosigner comparison comes down to two things: ownership rights and liability.

• A co-borrower is on both the mortgage and the title. They share ownership of the property and share responsibility for the debt.

• A co-signer is on the mortgage only. They guarantee the debt but have no ownership rights and don't appear on the title.

Co-signers are less common in multigenerational purchases because most families want shared ownership, not just a guarantor.

Loan types that work for multigenerational purchases

Most standard mortgage products support multigenerational buying. Here's how the main options stack up:

• Conventional loans work well when all borrowers have solid credit (ideally 700+) and enough combined income to handle a standard DTI. Down payment requirements start at 3–5% for primary residences.

• FHA loans are more flexible on credit (minimum 580 for 3.5% down) and allow higher DTI ratios. They also permit purchase of two- to four-unit properties as long as one unit is the buyer's primary residence — a useful structure for families who want built-in separation of living spaces.

• VA loans are available if at least one borrower is a qualifying veteran or active-duty service member. VA loans offer zero down payment and competitive rates — a significant advantage if one generation has served.

• Jumbo loans apply when the purchase price exceeds conforming loan limits (typically $766,550 in most markets in 2026). These require stronger credit and reserves but are fully available to co-borrowers.

How much down payment you'll need depends on the loan type, property type (single-family vs. multi-unit), and whether any party is a first-time buyer.

...in as little as 3 minutes — no credit impact

How to structure ownership — and why it matters

Who will own the home when one of the co-borrowers passes away or wants out of the deal? This will depend, a lot, on ownership structure.

There are two primary options.

• Joint tenancy with right of survivorship means all owners hold equal shares. If one owner dies, their share automatically passes to the surviving owner(s), bypassing the probate process. This structure is common among spouses and works well for families who want simplicity and smooth transfer of ownership.

• Tenants in common means each owner holds a defined percentage of the property, which can be unequal. Each share can be passed to heirs through a will rather than automatically transferring to surviving co-owners. This is often preferred in multigenerational arrangements where the contributions and estate plans of each party differ significantly.

Neither is inherently better. The right choice depends on your family's financial situation, estate planning goals, and what should happen to each party's share after death.

What happens to the mortgage if a parent passes away

This is one of the questions families most often fail to plan for. If a co-borrower dies, the surviving co-borrower(s) typically assume full responsibility for the mortgage payments. The loan doesn't go away.

Depending on how title is held, the deceased's share of the property may pass to you automatically or go through their estate.

Refinancing into just your name after a co-borrower's death is possible but requires you to qualify independently at current rates. An estate attorney can help you structure title vesting and estate documents in a way that protects all parties and the investment you've made together.

The ADU angle. Buying bigger to house everyone

An accessory dwelling unit (ADU) is a self-contained living space within or attached to a primary residence. This type of property has become popular for multigenerational home buyers.

Granny flats, basement apartments, detached guest houses, and garage conversions all qualify as ADUs.

Some lenders will count projected ADU rental income toward your qualifying income, which can help offset a higher purchase price. The rules vary by lender and loan type: FHA guidelines, for example, allow rental income from a two- to four-unit property to count when properly documented.

New construction is increasingly designed with ADUs built in, which is a trend driven directly by multigenerational demand. If you're considering a new build, ask your builder whether a multigenerational suite or detached ADU is included in the base plan or available as an upgrade.

Risks to talk about before you sign

Combining finances across generations is a meaningful commitment. Here are a few risks worth naming plainly before you proceed:

• Shared debt liability. Every co-borrower is fully responsible for the entire mortgage. If your parent can no longer make their portion of payments, you're on the hook — and vice versa.

• Credit impact. A missed payment affects all co-borrowers' credit equally. One party's financial hardship becomes everyone's problem on paper.

• Exit complexity. If one party wants to sell and the other doesn't, there's no clean exit without agreement. Buying out a co-borrower requires a refinance in the remaining borrower's name alone which means qualifying independently at current rates.

• Relationship strain. Money and housing together can create friction. Having an explicit, written agreement before closing — covering payment responsibilities, maintenance costs, what happens if someone wants to leave, and how decisions get made — is not an abundance of caution. It's essential.

FAQs about buying a home with your parents

Can I buy a house with my parents on the mortgage even if they already have their own home?

Yes. Having an existing mortgage doesn't disqualify your parents from being co-borrowers on a new loan. However, it could limit their ability to help. Their existing mortgage payment will factor into the combined DTI calculation, which may affect how much you can qualify for. Lenders will also want to confirm that the new property will be owner-occupied by at least one borrower.

My mom is retired and doesn't have income. Can she still be on my mortgage as a co-borrower?

It depends on what income she has. Lenders count qualifying income from retirement accounts (401(k) distributions, IRA withdrawals), Social Security, pension payments, and investment income. A retired parent with no income sources at all would not add to your qualifying income, though she could still be on the title if not on the loan. Read more about getting a mortgage in retirement if this applies to your situation.

What's the difference between adding my parents as co-borrowers vs. co-signers on a mortgage?

A co-borrower is on both the loan and the title, sharing ownership and debt responsibility. A co-signer is on the loan only: they guarantee the debt but hold no ownership rights. For most multigenerational purchases, co-borrower is the appropriate structure because both parties will live in and own the home.

My parents want to help me buy a house but don't want to be on the title. Is that possible?

Yes, but with limitations. A co-signer can help you qualify for the loan without taking ownership. Alternatively, if your parents want to contribute a cash gift toward your down payment rather than being on the loan at all, that's also a valid path. How much down payment you'll need varies by loan type, and a gift can cover part or all of it on conventional and FHA loans with proper documentation.

Is it better to buy a home with my parents as joint tenants or tenants in common?

It depends on your priorities. Joint tenancy offers simplicity: ownership passes automatically at death. Tenants in common gives each party more control over what happens to their share, and allows unequal ownership percentages that reflect each party's financial contribution. Both are valid. An estate attorney can help you choose the structure that fits your situation.

Buying with a home with parents can work well

When structured well, buying a home with your parents can expand your buying power, reduce monthly costs, and create a living arrangement that works for everyone.

The key is going in with clear agreements, the right loan structure, and a title arrangement that protects both generations.

The first step: Get an online pre-approval to estimate your co-borrowing power.

...in as little as 3 minutes — no credit impact