2026 Home Sale Capital Gains Tax by State: California, New York, Texas & Florida Rules
Selling a longtime home can involve both federal and state tax rules. Even when you qualify for the federal IRS Section 121 home-sale exclusion, state income-tax filing rules, closing paperwork, withholding requirements, and transfer taxes may still affect your transaction. This guide explains several common state-level issues for homeowners planning a sale. A federal home-sale exclusion does not eliminate every state filing or closing requirement. 1. Start With the Federal Section 121 Rule Eligible homeowners may exclude up to $250,000 of gain from a main-home sale, or up to $500,000 for many married couples filing jointly. In general, you must meet the ownership test, use test, and two-year look-back rule described in IRS Publication 523. State tax analysis begins only after you calculate the federal result. A state may follow the federal exclusion, require closing documents before allowing an exemption, or tax any remaining gain under its own income-tax rules. 2. Four Com...