2026 tax year editionFederal tax · NIIT · 50 states and DC

Guide

Home-sale capital gains and exclusion checklist

A home-sale calculation starts with sale price, adjusted basis and approved selling expenses. The federal exclusion can reduce a qualifying gain, but neither the ownership of a house nor a married filing status automatically establishes eligibility.

Determine the gain before applying an exclusion

Keep the purchase settlement statement, documented capital improvements and records of adjustments to basis. Compare the amount realized after approved selling expenses with the adjusted basis. Mortgage principal paid at closing affects cash received; it is not itself the purchase basis or a separate automatic reduction of gain.

Verify the ownership and use tests

IRS Topic 701 describes a possible exclusion of up to $250,000, or $500,000 for qualifying joint filers. The guidance includes ownership and use tests over the relevant five-year period and restrictions connected with claiming an exclusion on another home sale. Joint eligibility has its own conditions. A reduced exclusion can apply under specified circumstances, requiring separate preparation.

Check rental use and depreciation

If the home was rented or used in business, reconcile depreciation and any nonqualified use before determining the approved exclusion. A taxable recapture component is outside this site’s ordinary-sale model. Do not mark the entire transaction as an ordinary capital asset if the complete gain contains special-rate amounts.

Enter the approved amount into the worksheet

For an otherwise ordinary sale with $400,000 gain and an independently approved $250,000 federal exclusion, the worksheet’s remaining federal gain is $150,000. This arithmetic does not establish that the seller qualifies for that exclusion. Prepare the annual MAGI and net investment income after the approved exclusion; the tool does not infer those definitions from the sale price.

State home-sale treatment can differ

Washington’s capital-gains excise guidance exempts real estate, whereas Maryland’s additional covered-gain tax has a specific primary-dwelling exception with a price condition. Other states require their own basis, deductions and source-income reconciliation. Real estate located in a state may remain sourced there after a move. Use the relevant state guide and enter prepared liabilities before and after the sale.

Calculate an ordinary taxable remainder only after resolving special categories and eligibility. Review methodology for omitted credits, changing deductions and complete-return effects. Closing cash and gain remaining after modeled tax are different outputs.