Section 121 Home Sale Capital Gains Exclusion Calculator
Calculate your tax-free capital gains exclusion when selling your primary residence under IRS Section 121.
Section 121 Home Sale Capital Gains Exclusion Calculator
Calculate tax-free capital gains on primary residence sales ($250k single / $500k married) and evaluate the 2-in-5 year rule.
New roof, additions, kitchen remodel.
Realtor fees, title fees, escrow.
Estimated Federal & State Capital Gains Tax Saved: $82,080.
How Section 121 Protects Homeowner Equity
The Section 121 exclusion is one of the most generous tax exemptions in the United States. For most families, it allows hundreds of thousands of dollars in home equity gains to be transferred completely tax-free into a new home or retirement portfolio.
Key Features
Statutory $250k / $500k Exclusion
Models the full primary residence exemption for single and married filing jointly homeowners.
Adjusted Basis Step-Up Calculator
Adds qualifying capital home improvements to lower realized gains before taxation.
Common Use Cases
- ✓Homeowners Selling a Primary Residence
Calculate whether your home appreciation will trigger federal capital gains taxes or Net Investment Income Tax (NIIT).
- ✓Real Estate Investors Transitioning Rentals
Verify residency timelines to meet the strict 2-year ownership and use requirement.
Frequently Asked Questions
What is the Section 121 home sale exclusion?
Under IRS Section 121, homeowners can exclude up to $250,000 of capital gains from the sale of their principal residence if single, or up to $500,000 if married filing jointly.
What is the 2-out-of-5-year rule?
To qualify for the full exclusion, you must have owned the home and lived in it as your principal residence for at least two out of the five years leading up to the sale date.
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