Using a HELOC to buy out a co-owner

Siblings who inherited a house, partners who are splitting up, friends who bought together: when one owner wants out and the other wants to stay, home equity usually pays for it.

Reviewed by Shawn Way, NMLS #1007298★ 4.9 from 111 reviewsUpdated October 28, 2026

Step one: agree on the number

Most buyouts start with an appraisal both owners accept. The departing owner's share is usually their ownership percentage of the equity:

Owners sometimes adjust for who paid for improvements or carried the mortgage. Put the agreement in writing; the lender may ask for it.

Who's on the mortgage matters

• Only you are on the mortgage (common with inherited homes): a HELOC or home equity loan behind the existing loan is often the cheapest path, and the first mortgage rate stays.
• Both of you are on the mortgage: the departing owner stays liable for that loan until it's refinanced or the lender formally releases them. If they need off the debt, a refinance in your name alone is usually required, and some programs price a co-owner buyout better than a regular cash-out refinance when conditions are met.

How the closing works

1. Apply in your name. If both owners are still on title, the lender usually needs the other owner to sign or deed their interest at closing.
2. The departing owner signs a deed transferring their share to you.
3. The loan funds, and the title or escrow company pays the departing owner directly.
4. The deed is recorded. You own the home alone.

Qualifying on your own

Lenders count only your income; the departing owner's income no longer helps. The full housing cost, including the new line, has to fit your debt-to-income ratio. If it doesn't, a co-borrower who'll stay on title, a smaller buyout paid partly over time, or a bank-statement program for self-employed borrowers can help.

Example

Two brothers own a rental duplex 50/50, worth $900,000 with $300,000 owed on a 3.5% mortgage that's in one brother's name. The equity is $600,000, so the buyout is $300,000. The brother keeping it opens a line, and at a 75% combined loan-to-value limit for a rental, he can borrow up to $375,000. He draws $300,000 at closing, and his brother deeds over his half.

Tax angles

• Interest on money used to buy a share of your own primary home can count as acquisition debt, which may be deductible. Interest on a buyout of a rental share is usually a deductible rental expense. Confirm with a tax preparer.
• In California, buying a co-owner's share can trigger reassessment of that share, with exceptions between spouses and some family transfers. Check before closing.
• The departing owner may owe capital gains tax on their share.

Also asked

Is a co-owner buyout with a HELOC the same as a divorce buyout?

Not quite. The mechanics of a co-owner buyout and a divorce buyout are similar, but divorce buyouts follow a court order and have their own rules. See HELOCs in a divorce.

Can I pay a departing co-owner over time instead of borrowing?

Yes, with a private note, but the departing owner may want security for it and stays tied to the property longer. Many prefer a clean payout at closing.

What if co-owners can't agree on the home's value for a buyout?

Co-owners who disagree on value can each order their own appraisal and split the difference, or agree in advance to use the lender's appraisal. Most buyouts start with an appraisal both owners accept.

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