Selling Your Property to Developers: Capital Gains, Exclusions, and Recapture

The tax implications of selling your property to a developer come down to capital gains tax on the profit, and how much you owe depends on three things: whether you lived in the property, how long you owned it, and how the deal is structured. Federal long-term capital gains rates run 0%, 15%, or 20%, with a 3.8% surtax on top for higher earners. Homeowners can often shield $250,000 to $500,000 of profit under the primary residence exclusion. Investment owners have their own tools, chiefly 1031 exchanges and installment sales, to defer or spread the bill.

Federal Capital Gains Rates for 2026

The IRS taxes profit from a property sale as a capital gain. If you owned the property for a year or less, the profit is short-term and taxed at your ordinary income rate, which tops out at 37% for 2026.¹ Most developer sales involve land or homes held for years, so the profit qualifies as a long-term gain with lower rates.

For tax year 2026, the long-term capital gains brackets are:²

0% on taxable income up to $49,450 (single) or $98,900 (married filing jointly)
15% on income from $49,451 to $545,500 (single) or $98,901 to $613,700 (married filing jointly)
20% on income above $545,500 (single) or $613,700 (married filing jointly)

Developer offers routinely push sellers into the top bracket. A couple with $150,000 in regular income who sells land for a $700,000 profit ends up with $850,000 in taxable income, and the portion above $613,700 gets taxed at 20% rather than 15%. That jump is easy to miss when you’re focused on the offer price alone.

The 3.8% Net Investment Income Tax

High earners face an additional 3.8% Net Investment Income Tax on top of capital gains. It applies when modified adjusted gross income exceeds $200,000 (single) or $250,000 (married filing jointly).³ Those thresholds don’t adjust for inflation, so they catch more sellers every year. A six- or seven-figure gain almost always pushes you over the line, bringing the effective top federal rate on the gain to 23.8%.

The Primary Residence Exclusion

If the property is your home, Section 121 of the Internal Revenue Code lets single filers exclude up to $250,000 of gain from tax, and married couples filing jointly up to $500,000.⁴

Two tests apply. You must have owned the home and used it as your main residence for at least two of the five years before the sale. The two years don’t need to be consecutive, so a stretch when you rented the place out or lived elsewhere doesn’t disqualify you, as long as the total adds up.⁴ For a married couple claiming the full $500,000, both spouses must meet the use test, but only one has to meet the ownership test.

Anything above the exclusion is taxable. A couple who bought their home for $200,000 twenty years ago and accepts a developer’s $1,000,000 offer has an $800,000 gain. Subtract the $500,000 exclusion and $300,000 remains subject to long-term capital gains tax.

Partial Exclusion When You Haven’t Hit Two Years

Sellers who haven’t lived in the home for the full two years can still claim a reduced exclusion if the sale was driven by a qualifying reason: a job relocation (new workplace at least 50 miles farther than the old one), a health issue, or an unforeseeable event like a natural disaster or job loss.⁵ The exclusion is prorated. One year of use out of two gets you half: $125,000 single, $250,000 married. This matters when a developer’s offer lands before you’ve hit the two-year mark and the premium price is worth acting on.

Adjacent Vacant Land in the Same Deal

Developers often want more than just the house. The IRS lets you apply the Section 121 exclusion to a sale of adjacent vacant land if three conditions are met: the land sits next to your home, both sales close within two years of each other, and both parcels satisfy the ownership and use tests.⁵ The home and land are treated as one transaction sharing a single exclusion cap, not two separate exclusions.

Investment and Rental Property: No Exclusion, Plus Recapture

If the property was a rental or investment rather than your home, Section 121 doesn’t apply. The full profit is taxable, and there’s an extra layer homeowners don’t face: depreciation recapture.

While you owned the rental, you deducted depreciation each year for wear and tear on the building. When you sell, the IRS claws back those deductions. The portion of your gain attributable to accumulated depreciation is taxed at a maximum rate of 25%, higher than the 15% or 20% long-term rate on the rest.⁶ Recapture applies whether or not those past deductions actually saved you meaningful tax at the time.

Say you bought a rental building for $400,000, claimed $100,000 in depreciation, and a developer pays $800,000. Your total gain is $500,000 (sale price minus $300,000 adjusted basis). The first $100,000 is recaptured at up to 25%; the remaining $400,000 is taxed at the applicable long-term rate. Add the 3.8% NIIT if your income clears the threshold.

Calculating the Taxable Gain

Your taxable gain isn’t the sale price minus what you paid. The IRS uses your adjusted basis, which starts with the original purchase price and grows with qualifying additions over time. Every permanent improvement increases basis and shrinks the taxable profit.⁷

Qualifying improvements include a new roof, an addition, upgraded plumbing, drainage work, and new HVAC systems. Routine maintenance and repairs don’t count. Legal fees from the original purchase or from defending the property’s title also add to basis.⁸

Selling expenses come off the sale price before you calculate the gain: broker commissions, closing legal fees, title insurance, and transfer taxes all qualify.⁵ Every documented dollar directly reduces your tax bill. If a developer pays $1,500,000 and your adjusted basis plus selling costs total $600,000, you report a $900,000 gain.

Dig through old records before closing. Sellers who’ve owned for decades often forget long-ago improvements. A kitchen remodel from fifteen years back or a septic system replacement can add tens of thousands to basis, and once the sale closes, retroactive documentation gets much harder.

Deferring the Tax With a 1031 Exchange

Owners of investment or business property who don’t want to pay the tax immediately can use a Section 1031 like-kind exchange to defer the gain. You reinvest the proceeds into another qualifying real property, and the tax is postponed until you eventually sell the replacement without another exchange.⁹ Since the Tax Cuts and Jobs Act, 1031 exchanges apply only to real property, so equipment, vehicles, and other asset types are out.¹⁰

The deadlines are strict. You have 45 days from the sale date to identify potential replacement properties and 180 days to close on the acquisition.¹¹ Miss either by a day and the full gain becomes taxable immediately. Take control of any cash proceeds before the exchange completes, or end up with excess relief of debt, and that amount is treated as taxable “boot.”⁹

This is deferral, not escape. When you eventually sell the replacement without another exchange, the deferred gain comes due. Some investors chain 1031s for decades. Others hold until death, at which point heirs receive a stepped-up basis and the deferred gain disappears. The Section 121 primary residence exclusion does not apply to property acquired through a 1031 exchange until you’ve owned it for at least five years.

Spreading the Gain With an Installment Sale

When a developer pays over multiple years rather than in a lump sum, the installment method lets you report income as you receive each payment instead of all at once. That can keep you in a lower bracket across several years rather than spiking into the top rate in one.¹²

You report each payment using your gross profit percentage: the ratio of total profit to total contract price. If profit is 60% of the contract price, then 60% of every payment is taxable gain and the rest is tax-free return of basis.¹³ Interest the developer pays on the outstanding balance is reported separately as ordinary income.

Watch a few traps. If the contract doesn’t specify an adequate interest rate, the IRS will impute one and tax you on interest income you never received. If your outstanding installment obligations exceed $5 million at year-end (across all installment sales, not just this one), you owe the IRS an additional interest charge on the deferred tax. And if the property was held primarily for sale to customers, installment treatment isn’t available.¹³

You can opt out and report all the gain in the year of sale if paying upfront makes more sense. The election is made on the return for the sale year, including extensions, and can only be revoked with IRS consent.¹²

State and Local Taxes

Federal is only part of the bill. Most states tax capital gains too, and many treat the profit as ordinary income at whatever rate applies to your bracket. Depending on the property’s location, state income tax can add roughly 1% to over 13% on top of federal. A handful of states impose no income tax at all, which is worth factoring in if you have any flexibility on timing or residency.

Most states and many local jurisdictions also charge a transfer or recording tax when the deed changes hands, calculated as a percentage of the sale price or a flat fee per dollar of value. Whether buyer or seller pays varies by local custom and by contract. On a multi-million-dollar developer deal, transfer taxes alone can run into five figures.

Reporting the Sale

The forms depend on the property type and deal structure:

For a primary residence, use Form 8949 and Schedule D. Even if the Section 121 exclusion fully covers the gain, you still report the sale and show no taxable gain.¹⁴
For investment or rental property, use Form 4797 for the depreciation recapture portion, with any remaining capital gain flowing to Form 8949 and Schedule D.
For an installment sale, use Form 6252 in each year you receive a payment, carrying the gain to the appropriate schedule.¹³

The closing agent will send you a Form 1099-S showing gross proceeds, and the IRS gets a copy, so the figures on your return need to match. If you’re claiming the Section 121 exclusion, attach a clear calculation showing the excluded and taxable portions. Thorough records of basis, improvements, and selling expenses are what separate a clean filing from an audit invitation.

1
Internal Revenue Service. Topic No. 409, Capital Gains and Losses
2
Internal Revenue Service. Rev. Proc. 2025-32
3
Internal Revenue Service. Net Investment Income Tax
4
Office of the Law Revision Counsel. 26 U.S. Code 121 – Exclusion of Gain From Sale of Principal Residence
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Internal Revenue Service. Publication 523, Selling Your Home
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Office of the Law Revision Counsel. 26 U.S. Code 1 – Tax Imposed
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Internal Revenue Service. Publication 523, Selling Your Home – Section: Improvements
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Internal Revenue Service. Publication 551, Basis of Assets
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Office of the Law Revision Counsel. 26 U.S. Code 1031 – Exchange of Real Property Held for Productive Use or Investment
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Internal Revenue Service. Like-Kind Exchanges – Real Estate Tax Tips
11
Internal Revenue Service. Like-Kind Exchanges Under IRC Section 1031
12
Office of the Law Revision Counsel. 26 U.S.C. 453 – Installment Method
13
Internal Revenue Service. Publication 537, Installment Sales
14
Internal Revenue Service. Instructions for Form 8949