Buying someone out means paying a co-owner the fair value of their share in a property or business so that you become the sole owner. It comes up most often between divorcing spouses who want to keep the family home, siblings who inherited real estate together, and business partners when one wants to leave. The mechanics are the same across those situations: agree on what the share is worth, find the money to pay for it, transfer the ownership interest on paper, and clean up the debts and tax consequences that follow.
Figure Out What the Share Is Worth
Every buyout starts with a valuation. For real estate, that means hiring a licensed appraiser, which typically runs $300 to $500 for a residential property and more for complex or high-value homes. For a business, you need a professional valuation based on earnings, assets, or both, and those reports generally cost $2,000 to $4,000 or more.
Once you have a fair market value, the math on a home buyout is simple. Subtract debts like the mortgage balance from the appraised value to find the total equity, then multiply the equity by the departing owner’s ownership percentage. A house appraised at $500,000 with a $200,000 mortgage has $300,000 in equity; if two owners hold equal shares, the buyer pays the other $150,000.
Business buyouts follow the same principle, but the numbers are more involved. Each partner’s economic interest is tracked through a capital account reported on IRS Schedule K-1 (Form 1065), which reflects contributions, share of profits and losses, and withdrawals over time.1Internal Revenue Service. Partner’s Instructions for Schedule K-1 (Form 1065) Operating agreements and partnership agreements often spell out which valuation method applies, so read those documents before negotiating a price.
Check for Hidden Obligations
Before agreeing on a number, find out whether the asset carries debts or claims you don’t know about. For real estate, order a title search through a title company or real estate attorney to confirm there are no undisclosed liens, judgments, or claims against the property.
For a business, search Uniform Commercial Code (UCC) filings in the state where the company operates. UCC filings reveal whether the company’s assets have been pledged as collateral. If an active lien exists, make sure it is released before closing, or a creditor could still have a claim on assets you just paid for. A thorough review also covers outstanding tax liabilities, pending lawsuits, and contracts that could affect value.
How to Pay for the Buyout
Cash-Out Refinance
The most common way to fund a real estate buyout is a cash-out refinance. You take out a new mortgage larger than the current balance and use the extra cash to pay the departing owner. For conforming loans, both Fannie Mae and Freddie Mac cap cash-out refinances at 80 percent of the appraised value for a single-unit primary residence.2Fannie Mae. Eligibility Matrix On a $500,000 home, that puts the loan ceiling at $400,000. You have to qualify for the new mortgage on your own income, credit, and debt-to-income ratio, with the other owner out of the picture.
Seller Financing
If you can’t qualify for a large enough mortgage, or don’t want to refinance, the departing owner can agree to be paid over time. You sign a promissory note laying out the payment schedule, interest rate, and consequences of default. To avoid gift tax problems, the interest rate should be at least the IRS Applicable Federal Rate, which is published monthly.3Internal Revenue Service. Applicable Federal Rates The departing owner can protect themselves by recording a mortgage or deed of trust against the property, which gives them recourse if payments stop.
Leveraged Buyout for a Business
In a business buyout, the buying partner can borrow against the company’s own assets to fund the payment. The company takes on debt secured by equipment, inventory, or receivables, and the loan proceeds go to the departing partner. This preserves your personal cash but raises the company’s debt load and can limit future borrowing.
Getting Off the Mortgage (or Making Sure the Other Owner Is)
Signing over a deed does not remove anyone from a mortgage. This is the part of a buyout that most often goes wrong.
The Due-on-Sale Clause
Most mortgages contain a due-on-sale clause letting the lender demand full repayment if the property changes hands without consent. Federal law carves out several exceptions the lender cannot enforce against: transfers under a divorce decree or legal separation, transfers to a spouse or child during the owner’s lifetime, and transfers into a living trust where the borrower stays a beneficiary.4Office of the Law Revision Counsel. 12 U.S. Code 1701j-3 – Preemption of Due-on-Sale Prohibitions Outside those exceptions, such as a buyout between unrelated co-owners, transferring the property without the lender’s approval can make the full balance due immediately.
Why a Quitclaim Deed Isn’t Enough
A quitclaim deed transfers your ownership interest but does nothing to the mortgage. If the buyer agreed to make the payments and later defaults, the lender can still pursue the original borrower for the balance, including through a deficiency judgment. The only ways to actually end the departing owner’s mortgage liability are a refinance in the buyer’s name alone, or a formal loan assumption where the lender releases the original borrower in writing. Until that release exists on paper, the departing owner is still on the loan.
Taxes You Should Expect
Divorce Transfers
If the buyout is part of a divorce, the transfer itself is not taxable. Federal law treats property transfers between spouses, or between former spouses when the transfer is related to the divorce, as non-recognition events. No gain or loss is recognized, and the buyer takes over the other spouse’s original tax basis. To qualify, the transfer generally has to happen within one year of the divorce or be directly related to the end of the marriage.5Office of the Law Revision Counsel. 26 U.S. Code 1041 – Transfers of Property Between Spouses or Incident to Divorce
Capital Gains When You Sell Later
If you sell the home down the road, you may owe capital gains tax on the profit above your basis. If the home was your principal residence and you owned and lived in it for at least two of the five years before selling, you can exclude up to $250,000 of gain, or $500,000 filing jointly. The exclusion is available once every two years.6Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence
Gift Tax on Below-Market Buyouts
If the price is below fair market value, such as a parent selling a share to a child at a discount, the IRS may treat the difference as a gift. For 2026, each person can give up to $19,000 per recipient per year with no gift tax reporting.7Internal Revenue Service. Frequently Asked Questions on Gift Taxes Amounts above that require a gift tax return (Form 709) and count against the lifetime exemption. The lifetime exemption figure changed for 2026 with the expiration of earlier increases, so confirm the current amount with a tax professional.8Internal Revenue Service. Estate and Gift Tax FAQs
Basis in a Business Buyout
When you buy out a business partner, the price you paid becomes your tax basis in the partnership interest. If the partnership makes an election under Section 754 of the Internal Revenue Code, the basis of the partnership’s underlying assets is adjusted to reflect what you actually paid.9Office of the Law Revision Counsel. 26 U.S. Code 754 – Manner of Electing Optional Adjustment to Basis of Partnership Property Without the election, you can end up paying tax on gains already baked into the purchase price. The adjustment applies only to the buying partner’s share and does not change the partnership’s overall books.10eCFR. 26 CFR 1.743-1 – Optional Adjustment to Basis of Partnership Property
Making the Transfer Official
Real Estate
Once the money is arranged, the departing owner signs a deed transferring their interest. That is usually a quitclaim deed, which transfers whatever interest the signer holds without guarantees, or a warranty deed, which guarantees clear title. The deed is signed before a notary and recorded with the local recorder’s office. Recording fees and transfer taxes vary by jurisdiction; some states charge a percentage-based transfer tax on the deed, and others charge none.
Most buyouts run through an escrow agent or title company that holds the buyer’s payment until documents are signed and recorded. The seller knows the money is there; the buyer knows the deed will actually change hands. When payment clears and the deed is recorded, the departing owner’s legal interest ends.
Business Interests
For a business, the parties sign a membership interest purchase agreement for an LLC or a stock purchase agreement for a corporation. Read the operating agreement first: it may require the departing member to offer the interest to the remaining members before selling to an outsider, a right of first refusal with a specific deadline for the remaining owners to decide. The buyout cannot go to an outside party until that window closes.
After the transfer, the business may need to file an amendment with the state to reflect the ownership change. State filing fees for amending articles of organization generally run $25 to $150. Update the operating agreement, bank accounts, and any licenses or permits that still list the former owner.
If the Other Owner Won’t Cooperate
Not every buyout is voluntary. When co-owners of real estate cannot agree on a price or one refuses to sell, an owner can file a partition action in court. A partition forces a resolution: physical division of the property if that’s practical, an ordered buyout at an appraised price, or a court-ordered sale with proceeds split among the owners. Courts usually favor partition by sale when a property cannot be divided fairly. Partition cases can take a year or longer and generate significant legal costs, which is why a negotiated buyout is almost always preferable.
Business disputes take a different path. If the LLC’s operating agreement has a buy-sell provision, that provision controls what happens when a member leaves or a dispute arises, and many buy-sell agreements require binding arbitration on valuation. With no buy-sell agreement and members deadlocked or engaged in oppressive conduct, a court can order judicial dissolution, effectively winding the company down and distributing its assets. Most states allow members to petition for judicial dissolution when it is no longer practical to carry on the business under its governing documents.
How ownership was held in the first place also matters. Co-owners typically hold title as joint tenants with right of survivorship, where a deceased owner’s share passes automatically to the survivors, or as tenants in common, where each person owns a distinct share that can be sold or inherited separately. That distinction shapes who has standing to sell, buy out, or force a partition when the relationship ends.