If you sold your home this year, the documents you need for taxes fall into five groups: the closing paperwork from the sale, the closing paperwork from when you bought the house, receipts for every capital improvement you made, proof that the home was your primary residence, and depreciation records if any part of the property was ever rented or used for business. Add the IRS forms that report the transaction, and you have the full file.
Missing pieces cost real money. The IRS treats undocumented spending as if it never happened, which inflates your taxable gain.
Closing Documents From the Sale
Start with the Closing Disclosure from the sale, or the older HUD-1 Settlement Statement if the transaction was structured under the pre-October 2015 rules.1Consumer Financial Protection Bureau. What Is a HUD-1 Settlement Statement This one document establishes the sale price, itemizes every fee you paid at closing, and shows the net amount you received.
It also does double duty as your source for selling expenses that reduce the taxable gain. Real estate commissions, advertising costs, legal fees, transfer taxes paid by the seller, and any loan charges you covered on the buyer’s behalf all qualify.2Internal Revenue Service. Publication 523 (2025), Selling Your Home Prorated property taxes and homeowner association dues do not.
You may also receive Form 1099-S, Proceeds From Real Estate Transactions, from the closing agent. Whether one gets issued depends on a certification: if you signed a written statement under penalty of perjury that the home was your principal residence and the full gain is excludable under Section 121, and the sale price was $250,000 or less ($500,000 if married), the closing agent can skip the filing.3Internal Revenue Service. Instructions for Form 1099-S If a 1099-S was issued to you, keep it. You must report the sale on your return even if the entire gain is excludable.4Internal Revenue Service. Important Tax Reminders for People Selling a Home
Documents Establishing What You Originally Paid
The higher your basis, the smaller your taxable gain, so the paperwork proving your basis is where the tax savings live.
For a home you bought, dig out the Closing Disclosure or HUD-1 from the purchase. It records the purchase price and itemizes acquisition costs that get added to basis, including title insurance, appraisal fees, recording fees, and legal fees tied to the purchase. Keep the purchase contract and recorded deed as backup; they confirm the acquisition date and ownership transfer.
If You Inherited the Home
The purchase price the previous owner paid doesn’t matter. Federal law resets the basis to the property’s fair market value on the date the previous owner died.5Office of the Law Revision Counsel. 26 U.S. Code 1014 – Basis of Property Acquired From a Decedent To prove that stepped-up value, you need a professional appraisal conducted close to the date of death or a copy of the federal estate tax return (Form 706) if one was filed.6Internal Revenue Service. Instructions for Form 706 – United States Estate and Generation-Skipping Transfer Tax Return Most estates never file a 706, so the appraisal is usually what you’re relying on. If none exists and the inheritance was years ago, a retrospective valuation from a qualified appraiser can sometimes fill the gap.
If the Home Was Gifted to You
You generally take over the donor’s basis, so you need the donor’s original purchase documents and records of any improvements they made.7Office of the Law Revision Counsel. 26 U.S. Code 1015 – Basis of Property Acquired by Gifts and Transfers in Trust You’re rebuilding their entire ownership file.
If the home’s fair market value was lower than the donor’s basis when the gift happened, you’ll also need documentation of the fair market value at that date, because a different basis applies depending on whether you end up with a gain or a loss.8Internal Revenue Service. Property (Basis, Sale of Home, etc.) And if the donor paid gift tax on the transfer, keep a copy of their gift tax return (Form 709); a portion of that tax can add to your basis.9eCFR. 26 CFR 1.1015-5 – Increased Basis for Gift Tax Paid
If You Received the Home in a Divorce
A transfer between spouses in a divorce works like a gift for basis purposes. Gather the original purchase closing statement, all improvement records from the marriage, and a copy of the divorce decree or property settlement agreement showing the transfer terms.
Receipts for Capital Improvements
Improvements are the largest single opportunity most sellers have to reduce their taxable gain, and they’re the records people are most likely to be missing. Every qualifying improvement made during your ownership gets added to your basis.
The IRS separates improvements from repairs. Improvements add value, extend the home’s useful life, or adapt it to a new use. Repairs just keep things running. A $15,000 kitchen remodel raises your basis. Repainting the kitchen does not.2Internal Revenue Service. Publication 523 (2025), Selling Your Home
Improvements that typically qualify include:
- Additions like bedrooms, bathrooms, decks, garages, and porches
- Systems such as heating, central air, wiring, security, and water filtration
- Exterior work: new roof, new siding, storm or replacement windows
- Grounds work: landscaping, driveways, fences, retaining walls, swimming pools
- Interior work: kitchen modernization, new flooring, built-in appliances, fireplaces
Repairs done as part of a larger renovation project count as improvements. Replacing a few broken panes is a repair. Replacing those same panes as part of a whole-house window replacement is an improvement, and the whole cost qualifies.2Internal Revenue Service. Publication 523 (2025), Selling Your Home
For each project, keep the itemized invoice describing the work, the contractor agreement if there was one, and proof of payment such as a canceled check or bank statement. Specificity matters. “Installation of 200-amp electrical panel” is useful. “Electrical work” is not. If you can’t document an improvement, the IRS won’t let you add it to your basis, and the money you spent gets taxed as if it were profit.
Records Proving the Home Was Your Primary Residence
The Section 121 exclusion lets you exclude up to $250,000 of gain from your income, or up to $500,000 if you’re married filing jointly.10Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence To qualify, you must have owned the home and lived in it as your primary residence for at least two of the five years before the sale. The two years don’t need to be consecutive. For a married couple claiming the $500,000 amount, both spouses must meet the use test; only one has to meet the ownership test.2Internal Revenue Service. Publication 523 (2025), Selling Your Home
Hold onto anything that shows you actually lived there: utility bills, voter registration records, your driver’s license with that address, bank statements, and mail. If the IRS ever questions whether the property was genuinely your primary residence, these are what you’ll produce.
If you sold before hitting the full two years because of a job move, a health issue, or another qualifying unforeseen event, you may still get a partial exclusion.2Internal Revenue Service. Publication 523 (2025), Selling Your Home Keep documentation of the triggering event: a job offer letter, medical records, a divorce decree, or FEMA correspondence for a disaster-related move.
Depreciation Records if You Rented or Used a Home Office
If any part of the home was ever rented out, or you claimed a home office deduction using the regular method, you have an extra requirement that catches many sellers off guard. The IRS reduces your basis by the depreciation you were allowed to claim during those years, whether you actually claimed it or not.11Internal Revenue Service. Depreciation and Recapture That recaptured depreciation is taxed at a maximum rate of 25%.12Internal Revenue Service. Topic No. 409, Capital Gains and Losses
Pull the tax returns for every year you claimed depreciation, together with the depreciation schedules (usually Form 4562) showing the method and amounts. If you used the simplified home office method, depreciation is treated as zero and your basis is unaffected, so keep records showing which method you used each year.13Internal Revenue Service. Topic No. 509, Business Use of Home The burden of proof is on you.
The IRS Forms That Report the Sale
If your entire gain is covered by the Section 121 exclusion and you didn’t receive a Form 1099-S, you generally don’t have to report the sale at all.4Internal Revenue Service. Important Tax Reminders for People Selling a Home If you did receive a 1099-S, you must report the sale even if no tax is owed.
When a taxable gain exists, the sale is reported on Form 8949, Sales and Other Dispositions of Capital Assets, with the totals carrying to Schedule D.14Internal Revenue Service. Instructions for Form 8949 – Sales and Other Dispositions of Capital Assets If depreciation recapture applies, that portion goes on Form 4797 instead.15Internal Revenue Service. Instructions for Form 4797 High-income sellers whose gain exceeds the exclusion may also owe the 3.8% Net Investment Income Tax, reported on Form 8960.16Internal Revenue Service. Instructions for Form 8960
How Long to Keep These Records
The general rule is to keep property records until the statute of limitations expires for the year of the sale. For most sellers that’s three years after filing the return reporting the sale.17Internal Revenue Service. How Long Should I Keep Records Sell in 2026, file in April 2027, hold through at least April 2030.
Longer is better. If the IRS suspects you underreported income by more than 25%, the window extends to six years. If you never reported the sale, there’s no statute of limitations at all. A scanned copy in the cloud costs nothing compared to what you’d owe if you couldn’t prove a $30,000 kitchen renovation happened.