If you are researching capital gains when selling a Manhattan apartment, start with tax basis and amount realized, not cash left after paying a mortgage. A Manhattan condo or co-op can qualify for the federal home-sale exclusion, but residence history, improvements, rental use, filing status, and New York residency matter.
For the separate cash-flow side of a sale, see Brett’s seller closing-cost guide. Gain for income tax is a different calculation from the cash left after commissions, transfer taxes, and mortgage payoff.
Capital Gains When Selling a Manhattan Apartment: The Calculation
Gain is not the same as sale price or cash left after closing. The starting calculation is amount realized minus adjusted basis. Amount realized generally includes the sale price, including any assumed debt or noncash consideration where applicable, less direct selling costs.
A mortgage payoff does not reduce the gain. It reduces the cash equity received after closing. A seller with a large mortgage can have substantial taxable gain even if little cash remains. A seller with documented improvements and selling costs can have a lower gain than the sale price suggests.
Direct selling costs can include brokerage commissions, advertising, legal fees, and other costs directly connected with selling. Keep the settlement statement and invoices. Applicable state and local transfer taxes can be direct selling expenses.
Do not automatically treat mortgage payoff, ordinary prorations, escrow, maintenance, or every managing-agent charge as a selling expense; classify each item from its invoice and closing statement.
A simplified Manhattan example
Assume a $1,800,000 sale price, $108,000 of direct selling costs, and a $900,000 adjusted basis. The amount realized is $1,692,000. Subtracting the basis produces a realized gain of $792,000.
If the seller qualifies for a $250,000 federal principal-residence exclusion, the potentially taxable gain becomes $542,000. This example does not calculate federal tax. Filing status, ordinary income, taxable income, other gains and losses, depreciation, credits, New York rules, and NIIT can change the result.
The federal principal-residence exclusion
Section 121 may exclude up to $250,000 of gain for an eligible individual. Certain qualifying joint returns may use a $500,000 maximum. The exclusion applies to gain, not sale proceeds, mortgage payoff, or equity.
The ordinary test requires ownership and use of the property as the principal residence for at least two years during the five-year period ending on sale. Ownership and use can occur during different parts of that window. The seller generally must not have used the exclusion during the prior two years. For a joint return using $500,000, generally either spouse must meet ownership, both must meet use, and neither can be disqualified by a prior exclusion. A surviving spouse may have a separate qualifying-sale rule.
When a partial exclusion may apply
A seller who misses the full eligibility test may still qualify for a reduced exclusion. The IRS identifies qualifying changes in workplace location, health-related moves, and certain unforeseeable events. A job transfer generally must involve a new workplace at least 50 miles farther away, subject to the detailed rules.
A qualifying partial exclusion uses the shortest relevant ownership period, residence period within the five-year window, or time since a prior excluded sale. Divide by 730 days or 24 months and apply the fraction to the $250,000 or $500,000 maximum.
Do not promise a full $250,000 or $500,000 merely because a seller moved for a compelling personal reason.
When the exclusion does not shelter everything
The exclusion does not make every dollar of gain disappear. Gain above the applicable limit remains taxable. Nonqualified-use rules and depreciation connected with business or rental use can further limit the amount excluded.
A loss on the sale of a personal residence is generally not deductible. A qualifying investment or rental property can have different capital-loss and passive-activity rules. Section 121 excludes gain and does not create a personal-use loss deduction.
Federal long-term capital-gain rates for 2026
Revenue Procedure 2025-32 publishes the 2026 maximum zero-rate and maximum 15 percent amounts. For a single filer, the amounts are $49,450 and $545,500. For married filing jointly, they are $98,900 and $613,700. For married filing separately, the amounts are $49,450 and $306,850. For head of household, they are $66,200 and $579,600. The 20 percent rate applies to adjusted net capital gain above the applicable 15 percent band under the statutory rate structure.
These are taxable-income bands, not a flat tax on the sale price or entire gain. Other taxable income can push part of the remaining gain into a higher band. Holding period, losses, and special gain categories also matter.
The 3.8 percent Net Investment Income Tax
NIIT can apply at 3.8 percent to the lesser of net investment income or modified adjusted gross income above the statutory threshold. The threshold is $200,000 for single or head-of-household filers, $250,000 for married filing jointly, and $125,000 for married filing separately.
A gain from investment real estate can be net investment income. Gain excluded under Section 121 is generally excluded from NIIT to the extent it is excluded from regular federal income tax. The nonexcluded gain can still matter when the seller’s full income is considered.
NIIT thresholds differ from capital-gain bands. Wages and active nonpassive business income generally are not net investment income, but can raise modified adjusted gross income. Rental income needs its own passive-activity analysis. Taxable investment income and the threshold excess drive the separate Form 8960 calculation.
Rental use and depreciation recapture
A Manhattan apartment used as a rental or for business requires a more detailed calculation. Depreciation reduces adjusted basis and can increase gain. Section 121 generally cannot shelter gain equal to depreciation allowed or allowable for periods after May 6, 1997.
The seller may need Form 4797 for a business or rental portion. The personal portion may be reported through Form 8949 and Schedule D. Separate rental space can require allocation of sale price, selling costs, basis, depreciation, and gain.
Unrecaptured Section 1250 gain can receive a maximum federal rate of 25 percent. That differs from ordinary depreciation recapture and from the regular 0, 15, and 20 percent long-term bands. Character depends on the property, depreciation, deductions, and reporting forms.
A rental period after the last date the apartment served as the principal residence is generally an exception to Section 121’s nonqualified-use allocation, though depreciation-related gain remains taxable. Earlier nonqualified rental periods may require proration. Record occupancy, rental dates, business-use share, depreciation schedules, and prior returns.
Inherited Manhattan apartments and stepped-up basis
Inherited property generally receives a basis based on fair market value at the decedent’s death. An alternate valuation date can apply only if the executor files Form 706 and properly elects it. Estate-tax consistency rules can require use of the value reported on Schedule A to Form 8971.
Inheritance affects basis, not automatically principal-residence eligibility. Section 121 still depends on the beneficiary’s ownership and use history, subject to special rules in particular circumstances.
Gifted Manhattan apartments and carryover basis
A gifted apartment generally carries over the donor’s adjusted basis when fair market value at the gift date is at least the donor’s basis. For a post-1976 gift, gift tax can increase basis only to the extent attributable to net appreciation under the applicable rule; it does not automatically increase basis.
The recipient needs the donor’s basis, gift-date fair market value, and gift-tax records. If fair market value was below donor basis, special dual-basis rules can apply. The basis for determining gain may differ from the basis for determining loss. A sale price between those amounts can produce neither gain nor loss. Obtain donor records and gift-tax documentation.
Improvements, repairs, and basis records
Capital improvements generally increase basis when they add value, prolong useful life, or adapt the apartment to a new use. A substantial kitchen renovation, full bathroom reconstruction, new electrical system, or permanent layout change may qualify.
Ordinary maintenance and repairs generally do not increase basis. Painting, fixing leaks, replacing broken hardware, and routine upkeep may improve marketability without being capital improvements. Repair-type work performed as part of extensive remodeling can be treated differently.
Create a basis file before listing. Include the purchase closing statement, stock certificate and proprietary lease if applicable, deed, invoices, permits, architectural plans, assessment records, depreciation schedules, casualty records, and final settlement statement.
Co-op and condo basis differences
For a condo, the seller generally owns an interest in real property. Basis follows ordinary real-property rules, including purchase cost, eligible acquisition costs, capital improvements, and required reductions.
For a co-op, the seller owns shares and occupancy rights under a proprietary lease. The NYAG lists 400 East 84th Street Owners Corporation, Plan C190006, as a Manhattan cooperative offering effective January 26, 2026; that filing does not establish anyone’s basis. Federal homeowner guidance treats stock purchase price and certain acquisition costs as co-op basis.
Current market value is not a substitute for historical share basis.
New York State and New York City income taxes
New York does not generally replace its regular personal income tax with a separate capital-gains rate. A New York resident generally reports income from all sources. A nonresident generally reports New York-source income, including gain from New York real property and certain qualifying interests in New York real-property entities. New York City residents generally pay NYC personal income tax on all income. A NYC nonresident generally does not owe NYC personal income tax merely because the person owns or sells a Manhattan apartment. Residency depends on domicile, permanent place of abode, days present, and surrounding facts.
A New York State or NYC statutory-residency test generally requires a permanent place of abode in the relevant jurisdiction for substantially all of the year and 184 or more days there. Any part of a day generally counts, subject to exceptions. Domicile is a separate residency route; ownership alone settles neither test.
Nonresidents should review Form IT-203. Residents generally use Form IT-201. A part-year move can require additional allocation and city-residency forms. Keep a contemporaneous day-count record if residency could be disputed.
IT-2663 and IT-2664 for nonresident sellers
A nonresident selling a fee-simple condo or other New York real property generally reviews Form IT-2663. A nonresident selling shares in a New York cooperative housing corporation generally reviews Form IT-2664 instead.
The 2026 forms apply to covered transfers after December 31, 2025 and before January 1, 2027. They calculate gain or loss using sale price, selling expenses, adjusted basis, and the federal-reportable portion of gain.
The 2026 forms use a 10.90 percent highest New York State rate for the estimated payment calculation. This is an estimated-payment mechanism, not a statement that every seller ultimately pays 10.90 percent of gain. The final return determines actual liability.
Reporting the sale and Form 1099-S
The person responsible for closing generally files Form 1099-S. It reports gross proceeds, not the seller’s final taxable gain. A 1099-S can be issued even when Section 121 is expected to exclude all gain. If the seller receives Form 1099-S, the sale must be reported even if Section 121 excludes all gain. Report it on Form 8949, with Schedule D as required. Reconcile gross proceeds with selling costs and adjusted basis.
Why Section 1031 usually does not apply to a home sale
Section 1031 is for qualifying exchanges of real property held for investment or productive use in a trade or business. It is not a general rollover rule for a personal residence. Selling a Manhattan home and buying another personal apartment ordinarily does not qualify.
A properly structured exchange can defer recognized gain when qualifying investment or business real property is exchanged for like-kind real property. A deferred exchange must avoid actual or constructive receipt of proceeds and meet identification and replacement deadlines. A qualified intermediary is a common safe harbor, not the only possible one.
A rental apartment may qualify if held for investment, but personal use, dealer property, cash, debt relief, related-party transfers, and other facts can change the result. Section 1031 defers gain; it does not erase the tax history.
Seller Strategy: Reduce Surprises Before Listing
Start with a tax file, not a tax guess. Ask the accountant for a preliminary gain schedule using the expected price, estimated commission, transfer charges, attorney fees, co-op costs, historical basis, improvements, depreciation, and mortgage information.
Confirm Section 121 before setting a net-proceeds target. Gather proof of residence, ownership dates, prior exclusions, and facts supporting a partial exclusion. If the apartment was rented, obtain the depreciation schedule and identify every rental or business period.
Ask the managing agent for the current resale package. Identify flip charges, assessments, transfer fees, stock or deed records, and unpaid balances. For a nonresident, tell the closing attorney early so IT-2663 or IT-2664 can be planned.
Compare the preliminary tax estimate with the projected net sheet. Ask which charges are included as selling costs, which affect basis, and which only reduce cash proceeds. This review helps prevent a seller from promising a reinvestment plan before knowing the gain, estimated tax, and final cash position.
If you want a property-specific estimate of Manhattan sale proceeds and next steps, contact TheNewYorkCityBroker.com/contact-me.
Before Listing: Give the Tax Adviser a Complete File
Separate sale price, equity, amount realized, and gain. Reconstruct the basis, ownership and residence timeline, prior home-sale exclusions, and improvements. Identify rental depreciation, business use, and the holding period before estimating federal tax.
Test NIIT apart from capital-gain bands. Determine State and City residency and whether a nonresident has New York-source gain. Match the correct IT-2663 or IT-2664 procedure to the ownership form, then reconcile Form 1099-S and the closing statement. Preserve invoices, permits, assessments, and tax records.
The final result needs the signed closing statement and complete basis file.
Frequently Asked Questions
An eligible individual may exclude up to $250,000 of gain. Certain qualifying joint returns may exclude up to $500,000. The seller generally must have owned and used the apartment as a principal residence for at least two years during the five years ending on the sale date and must satisfy the prior-sale rule.
The exclusion applies to gain, not the sale price, mortgage balance, equity, or cash received. Gain above the limit remains taxable. Depreciation, rental use, and nonqualified-use rules can reduce the amount excluded.
The seller should calculate the full gain before applying Section 121. State and city taxes are separate questions and require their own residency analysis.
No. Paying off the mortgage reduces cash equity after closing, but it does not ordinarily reduce the gain calculation. Gain generally starts with proceeds reduced by eligible direct selling costs, then subtracts adjusted basis.
A seller with a $1 million mortgage can have the same taxable gain as a seller with no mortgage if price, selling costs, basis, residence history, and other facts are identical.
The mortgage payoff belongs in the cash-to-seller calculation, not normally in the basis calculation. It should appear in projected closing proceeds, not as a substitute for adjusted basis.
Capital improvements generally increase basis when they add value, prolong useful life, or adapt the apartment to a new use. Ordinary maintenance and repairs generally do not. A large renovation can include work that would look like a repair if performed separately.
Keep contracts, invoices, permits, proof of payment, and records showing the work remained part of the apartment at sale. For co-ops and condos, obtain assessment descriptions from the managing agent.
A special assessment for capital work may increase basis, while ordinary operating charges generally do not. Ask for the building’s written allocation before treating an assessment as a capital item.
Rental use can reduce basis through depreciation and can create gain Section 121 does not exclude. Depreciation allowed or allowable after May 6, 1997 generally must be recognized to the extent required. A separate rental or business portion may be reported on Form 4797, with personal gain reported through Form 8949 and Schedule D. Provide depreciation schedules, prior returns, rental-use dates, and business-use percentages to the tax preparer. Do not assume that failing to claim depreciation preserves basis. Allowable depreciation can still be relevant. Rental records should be reconciled with the closing statement and the final depreciation schedule.
Often, yes, unless an exemption applies. A nonresident selling fee-simple New York real property generally reviews IT-2663. A nonresident selling shares in a New York cooperative generally reviews IT-2664.
The 2026 forms estimate New York tax from gain and related information. A loss, qualifying principal-residence treatment, or federal nonrecognition transaction may change the payment requirement. The closing attorney should document the exemption and submit the correct form or certification. A payment made at closing is generally credited on the later New York return.
Usually not if the apartment was held solely as a personal residence. Section 1031 is limited to qualifying real property held for investment or productive business use. Buying another personal apartment with sale proceeds is not automatically a 1031 exchange. A rental apartment may qualify if held for investment, but a deferred exchange must avoid receipt of proceeds and generally identify replacement property within 45 days and receive it by the earlier of 180 days or the tax-return due date, including extensions. Section 1031 defers gain; it does not permanently eliminate the tax.
Planning must begin before closing because receiving proceeds can undermine the intended exchange.
For capital gains on this Manhattan apartment sale or another NYC listing, contact TheNewYorkCityBroker.com/contact-me.
