When you sell real estate in the United States, the tax forms for sale of property you’ll need depend on what you sold and how. Most sellers report the transaction on Form 8949 and carry the totals to Schedule D of Form 1040. Rental or business property adds Form 4797. Seller-financed deals use Form 6252. A 1031 exchange uses Form 8824. High-income sellers may also owe the 3.8% net investment income tax on Form 8960, and foreign sellers trigger withholding reported on Form 8288 and 8288-A. The sections below walk through each form and the situation that calls for it.
Form 8949 and Schedule D: The Baseline for Most Sales
Form 8949 is where you report the details of the sale: the date you acquired the property, the date you sold it, the proceeds, and your adjusted basis. The closing agent typically sends you Form 1099-S reporting the gross proceeds, and you enter that figure in Column (d).1Internal Revenue Service. Instructions for Form 8949 (2025)
The form splits into two parts. Part I covers short-term transactions where you held the property for one year or less. Part II covers long-term transactions where you held it for more than one year.1Internal Revenue Service. Instructions for Form 8949 (2025) Most real estate sales land in Part II because people hold property for years before selling.
The totals from Form 8949 flow to Schedule D (Capital Gains and Losses), which combines all your capital transactions for the year.2Internal Revenue Service. About Form 8949, Sales and Other Dispositions of Capital Assets Schedule D produces the net figure that goes on your Form 1040. If you have a loss, remember that losses on personal-use property, including your home, are not deductible.3Internal Revenue Service. Publication 544, Sales and Other Dispositions of Assets Only losses on investment or business property can offset other income, and capital losses that exceed your capital gains in a given year can only offset up to $3,000 of ordinary income ($1,500 if married filing separately), with any remainder carried forward.4Internal Revenue Service. 2025 Instructions for Schedule D (Form 1040)
Form 4797 for Rental and Business Property
If the property you sold was ever rented out or used in a business, Form 8949 alone isn’t the right place to report it. Sales of business property go on Form 4797. This is the form sellers most commonly overlook, so check it before filing if the property had any rental or business use at any point.
Form 4797 handles depreciation recapture. If you claimed depreciation deductions (or could have claimed them) while owning the property, the IRS wants some of that benefit back when you sell at a gain. The portion of your gain attributable to prior depreciation is called “unrecaptured Section 1250 gain” and is taxed at a maximum rate of 25%, higher than the standard long-term capital gains rates.5Internal Revenue Service. Topic No. 409, Capital Gains and Losses
Part III of Form 4797 is specifically designed to calculate how much of your gain must be treated as ordinary income due to depreciation recapture.6Internal Revenue Service. 2025 Instructions for Form 4797 – Sales of Business Property The remaining gain above the recapture amount is taxed as a regular long-term capital gain. One trap worth flagging: even if you converted a rental property to personal use before selling, you still owe depreciation recapture on the deductions you took during the rental period. The IRS does not forget prior depreciation just because the property changed use.
Form 6252 for Seller-Financed Installment Sales
When you finance the sale yourself and receive at least one payment after the tax year of the sale, the IRS treats it as an installment sale.7Office of the Law Revision Counsel. 26 USC 453 – Installment Method Instead of paying tax on the entire gain upfront, you spread it over the years you receive payments, which aligns your tax bill with your actual cash flow.
You report installment sales on Form 6252 (Installment Sale Income).8Internal Revenue Service. About Form 6252, Installment Sale Income The form calculates a gross profit percentage by dividing your total gain by the total contract price. That percentage is applied to each payment you receive during the year to determine the taxable portion. The annual taxable gain then transfers to Schedule D.
Two things to keep in mind. If the property had depreciation recapture, the recapture portion is recognized in the year of sale regardless of when payments arrive; the installment method only spreads the remaining gain. And you can elect out of the installment method entirely by reporting the full gain on a timely filed return for the year of sale.7Office of the Law Revision Counsel. 26 USC 453 – Installment Method
Form 8824 for a 1031 Like-Kind Exchange
If you sell investment or business real estate and reinvest the proceeds into similar property, you can defer your entire capital gains tax through a like-kind exchange under Section 1031. This applies only to real property held for business or investment use. It does not cover your personal home or property you held primarily for resale.9Office of the Law Revision Counsel. 26 USC 1031 – Exchange of Real Property Held for Productive Use or Investment
Report a completed exchange on Form 8824 (Like-Kind Exchanges) for the tax year the transfer occurred. If the exchange involved a related party, you must also file Form 8824 for the following two years.10Internal Revenue Service. Instructions for Form 8824 (2025)
The deadlines behind the form are strict and cannot be extended. You must identify the replacement property in writing within 45 days of selling the original property and close on the replacement within 180 days, or by the due date of your tax return for that year, whichever comes first. Miss either deadline by a single day and the exchange is disqualified, making the full gain taxable. Most sellers use a qualified intermediary to hold the sale proceeds during the exchange period, because touching the money yourself can also disqualify the transaction. One boundary worth knowing: U.S. real property and foreign real property are not considered like-kind to each other, so you cannot use a 1031 exchange to swap domestic property for an overseas investment.9Office of the Law Revision Counsel. 26 USC 1031 – Exchange of Real Property Held for Productive Use or Investment
Form 8960 for the Net Investment Income Tax
High-income sellers face an additional 3.8% net investment income tax (NIIT) on top of their capital gains tax. The surtax applies if your modified adjusted gross income exceeds $200,000 for single filers or $250,000 for married couples filing jointly.11Office of the Law Revision Counsel. 26 USC 1411 – Imposition of Tax The tax is calculated on the lesser of your net investment income or the amount by which your income exceeds those thresholds, and capital gains from property sales count as net investment income.12Internal Revenue Service. 2025 Instructions for Form 8960 – Net Investment Income Tax
You calculate and report the NIIT on Form 8960, filed with your Form 1040. The thresholds are not adjusted for inflation, so they catch more taxpayers each year. A property sale that produces a large one-time gain can push you over the threshold even if your regular income would not normally trigger the tax.
Forms 8288 and 8288-A for Foreign Sellers (FIRPTA)
If the seller is a foreign person, the buyer (or the settlement agent) must withhold 15% of the amount realized and send it to the IRS under the Foreign Investment in Real Property Tax Act.13Internal Revenue Service. FIRPTA Withholding This is not the final tax owed; it is a prepayment against the seller’s U.S. tax liability on the sale.
The buyer files Form 8288 and Form 8288-A to report and transmit the withheld amount to the IRS within 20 days of the transfer date.14Internal Revenue Service. Instructions for Form 8288 (Rev. January 2026) The foreign seller can apply before closing for a withholding certificate on Form 8288-B to reduce or eliminate the 15% withholding if their actual tax liability will be lower.15Internal Revenue Service. Applications for FIRPTA Withholding Certificates
There is a complete exemption from FIRPTA withholding when the buyer is an individual acquiring the property as a personal residence and the purchase price is $300,000 or less. The buyer or a family member must plan to live in the property for at least half the days it is in use during each of the first two years after the purchase.16Internal Revenue Service. Exceptions From FIRPTA Withholding
When You Don’t Have to File Anything
Sellers of a primary home can often exclude a large portion of their gain under Section 121: up to $250,000 if single, or up to $500,000 if married filing jointly, provided you owned and used the home as your main residence for at least two of the five years ending on the sale date.17Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence
If your entire gain is covered by the exclusion and you did not receive a Form 1099-S from the closing agent, you do not need to report the sale on your return at all.18Internal Revenue Service. Publication 523, Selling Your Home If you did receive a 1099-S, you must still file Form 8949 and Schedule D to reconcile the reported proceeds with the IRS, even though no tax is owed. Report the sale normally in Part II of Form 8949, then enter the excluded amount as a negative number in Column (g) with code “H.”19Internal Revenue Service. 2025 Instructions for Form 8949 Any gain above the exclusion amount flows through to Schedule D as a taxable long-term capital gain.
Don’t Forget Estimated Tax After a Large Sale
A large capital gain from selling property can create a substantial tax bill that is not covered by regular paycheck withholding. If you expect to owe at least $1,000 in tax after subtracting withholding and refundable credits, you generally need to make estimated tax payments to avoid an underpayment penalty.20Internal Revenue Service. 2026 Form 1040-ES This catches a lot of sellers off guard, especially those who have never made quarterly payments before.
For 2026, estimated payments are due April 15, June 15, September 15, and January 15, 2027.20Internal Revenue Service. 2026 Form 1040-ES If your sale closes mid-year, you can annualize your income and make a larger payment for the quarter in which the sale occurred rather than spreading it evenly across all four quarters. Attach Form 2210 with Schedule AI to your return to show that your uneven payments matched the timing of the income.21Internal Revenue Service. Large Gains, Lump Sum Distributions, Etc. Another option is to increase your federal income tax withholding from wages or other income for the rest of the year to cover the additional liability.