To split the equity in a house, start with one number: the home’s current market value minus every dollar still owed against it. That remainder is the equity pool. How you divide it depends on how the deed is held, what each owner put in, and whether the split is happening through divorce, a voluntary buyout, or a sale. Get the inputs right and the math is simple. Get them wrong and someone loses tens of thousands of dollars.
Calculate the Net Equity First
Nothing else matters until you know the size of the pool. Two inputs produce it: a reliable market value and the full amount of debt secured by the property.
The most defensible value comes from a licensed appraiser, whose report carries weight in negotiations, mediation, and court.1Fannie Mae. Appraisal Report Forms and Exhibits A Broker Price Opinion from a real estate agent costs less and comes back faster, but it carries less authority if a dispute reaches a judge.
For the debt side, request a payoff statement from your mortgage servicer rather than relying on a monthly statement. The payoff figure includes accrued interest through the expected payoff date and any prepayment penalty. Then add every other recorded claim: home equity lines, second mortgages, tax liens, and contractor liens. A title search surfaces anything you may have forgotten. Missing a lien can blow up a deal at closing.
The formula:
Net Equity = Appraised Value − (Mortgage Balance + All Other Liens)
A home appraised at $450,000 with $280,000 in combined debt holds $170,000 in net equity. That $170,000 is what gets divided.
Check the Deed to Find Your Starting Share
The recorded deed is the first place any attorney, mediator, or judge looks. Three forms of co-ownership cover almost every situation, and each one sets a different default.
Joint Tenancy With Right of Survivorship
Every joint tenant holds an equal, undivided interest. Two owners each hold half; three each hold a third. The law presumes equality no matter who contributed more at purchase or in monthly payments. When one owner dies, the share passes automatically to the survivors. Check the grantee section of the deed for language naming the owners “as joint tenants with right of survivorship.”
Tenancy in Common
Tenants in common can hold unequal shares, and the deed can spell them out. One owner might hold 70 percent and another 30. There is no automatic transfer at death; each owner can leave their share to anyone. If the deed is silent on percentages, courts generally default to equal shares absent written evidence of a different arrangement.
Tenancy by the Entirety
Available only to married couples, and only in roughly half the states. It resembles joint tenancy with equal shares and right of survivorship, but neither spouse can sell, mortgage, or transfer their interest without the other’s consent. Neither one can force a split unilaterally; it happens through divorce or mutual agreement.
How Divorce Changes the Split
For married couples divorcing, deed language often gives way to state law. Two systems govern.
Nine states use community property: Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin. Nearly everything acquired during the marriage belongs to both spouses equally, regardless of whose name is on the title or who earned the money. The starting presumption is a 50/50 split. A home one spouse owned before the marriage can be treated as separate property, but in many of these states, adding the other spouse to the deed converts it to shared marital property.
The remaining states follow equitable distribution. Equitable does not mean equal. Judges weigh the length of the marriage, each spouse’s income and earning potential, custody arrangements, and each person’s financial contributions, then award whatever share seems fair. A 60/40 outcome is as plausible as 50/50. The percentages on the deed become one factor among many.
Adjustments When Contributions Were Unequal
Title percentages set the starting line, not the finish. Credits and offsets can shift the final numbers when one owner put in significantly more money or carried the costs alone for a stretch.
Down Payment Credits
The most common adjustment. If one person made the entire down payment from personal savings or an inheritance, the parties can agree to return that amount to the contributor before dividing the rest. On $170,000 in net equity with a $40,000 solo down payment, you subtract the $40,000 first and split the remaining $130,000 according to title percentages. This “off the top” approach is standard in negotiated settlements.
Capital Improvements
Renovations that measurably increased value — a kitchen remodel, a structural addition, a finished basement — can justify a credit for the owner who paid. Routine upkeep like mowing, repainting, or fixing leaks is a normal cost of occupancy and earns no extra equity. Keep receipts and contractor invoices for anything substantial, because the line between improvement and maintenance matters.
Mortgage Payments and Occupancy Offsets
An owner who moved out but kept paying the full mortgage has a reasonable claim to a credit for the principal portion of those payments, since principal built equity. Interest is harder to recover because it did not increase ownership value. Bank statements, canceled checks, and an amortization schedule are the documentation that supports the claim.
The occupying owner is not automatically living there free. In many states, when one co-owner actively excludes the other — changing locks, refusing access, making clear the other is not welcome — the excluded owner can claim a credit for their share of the home’s fair rental value. This is an ouster claim, and it requires more than one person choosing to leave voluntarily. Where the threshold is met, the rental-value claim can offset the occupant’s mortgage credit and substantially rework the final split.
Document everything. Verbal understandings about who paid what rarely survive a contested split.
The Costs That Shrink the Pool
Whether you sell or execute a buyout, transaction costs come out of equity before anyone receives a check.
- Agent commissions on an open-market sale typically run 5 to 6 percent of the sale price, split between the listing agent and the buyer’s agent. On a $450,000 sale, that is $22,500 to $27,000.
- Closing costs for the seller — title insurance, escrow fees, administrative charges — commonly add another 1 to 3 percent of the sale price.
- Transfer taxes vary widely. Roughly a third of states charge none; others go as high as 5 percent in some jurisdictions.
- Recording a new deed with the county usually costs between $50 and $75, though some areas charge more.
The impact is real. Dividing $170,000 in equity after $30,000 in combined sale costs means splitting $140,000. Build the costs into your numbers early.
Buyout or Sale
If one owner wants to keep the house, the standard move is a buyout. The staying owner pays the departing owner their share in cash, almost always by refinancing the existing mortgage into their name alone. The refinance does two jobs: it funds the buyout and it removes the departing owner from the loan, protecting their credit from any future default. The departing owner then signs a quitclaim deed, which gets recorded with the county. Until both the loan and the deed are handled, the departing owner is still financially exposed.
Buyouts stall when the staying owner cannot qualify to refinance on their own income at current rates for enough to cover the existing balance plus the other person’s share. The fallbacks:
- Seller-financed buyout, where the departing owner accepts installment payments under a written promissory note instead of a lump sum. This keeps the parties financially tied, so it depends on trust.
- A home equity loan or line of credit on the property, which may have less stringent requirements than a full refinance.
- Deferred sale, common in divorce settlements, which postpones the transaction until a specific date or event such as a child finishing high school. The interim obligations need to be in writing.
- Selling on the open market, which is often the cleanest exit when no buyout structure works. Both owners walk away with cash and no continuing obligation to each other.
On a market sale, an escrow company distributes the proceeds. Mortgages and liens get paid first, then transaction costs, and the remaining cash goes to each owner according to the agreed shares or a court order. Put the disbursement instructions in writing before closing.
Tax Consequences to Factor In
Two tax issues catch co-owners by surprise: capital gains at sale, and gift tax when equity transfers for less than it is worth.
Capital Gains and the Home Sale Exclusion
Profit from selling your home is a capital gain. Federal law lets you exclude up to $250,000 of that gain if you file as single, or up to $500,000 if married filing jointly.2Internal Revenue Service. Topic No 701, Sale of Your Home You must have owned and used the home as your primary residence for at least two of the five years before the sale.3Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence You also cannot have claimed the exclusion on another home sale within the prior two years.
Unmarried co-owners each get their own $250,000 exclusion if each independently meets the ownership and use tests. Two unmarried co-owners can together shelter up to $500,000, matching a married couple. Each reports their proportional share of the gain on their own return.4Internal Revenue Service. Publication 523, Selling Your Home
Buyouts create a planning wrinkle. The departing owner may still owe capital gains tax on their share of the appreciation. The staying owner realizes no gain at the time of the buyout, but their cost basis does not reset to the buyout value, which can mean a larger tax bill when they eventually sell.
Gift Tax on Below-Market Transfers
Transferring equity for less than fair market value — signing over a share for a dollar in a family arrangement, for instance — can trigger gift tax treatment on the difference. For 2026, you can give up to $19,000 per recipient per year without a reporting requirement.5Internal Revenue Service. Whats New – Estate and Gift Tax Anything above that requires filing Form 709, even if no tax is ultimately owed because of the lifetime exemption.6Internal Revenue Service. Instructions for Form 709 This shows up most often in parent-child transfers and in informal arrangements between unmarried partners. Transfers between spouses as part of a divorce decree are generally exempt; the same transfer between unmarried partners is not.
When You Cannot Agree: Partition
If negotiations break down and one owner refuses to buy or sell, the legal remedy is a partition action: a lawsuit asking a court to divide the property or order it sold. Any co-owner with a recorded interest can file one, and in most states the right to partition is nearly absolute. The other owner’s objection alone usually will not block it.
Courts can order partition in kind, physically dividing the land, but this rarely works for a house. The common outcome is partition by sale, where the court orders the home sold and distributes the proceeds according to each owner’s interest after liens, costs, and fees.
Partition is slow and expensive. Attorney fees, court costs, commissioner or appraiser fees, and the discount a court-ordered sale often produces all come out of the equity. A mediator usually costs a fraction of what partition litigation does. Know that partition exists, and treat it as the last resort.