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Understanding Capital Gains on Your Home Sale - 12/31/2025

Selling your home can be a significant financial event and it's important to understand how capital gains taxes may apply. Fortunately, U.S. tax law offers generous exclusions for homeowners under certain conditions, and with proper recordkeeping, many can reduce or eliminate their tax burden altogether.

Here's what every homeowner should know about capital gains, exclusions, and the importance of documenting improvements.

What Are Capital Gains?

Capital gain is the profit you make from selling your home. It's calculated as the difference between your adjusted cost basis and the sale price (minus allowable selling costs, such as real estate commissions).

Sale Price ... (Purchase Price + Capital Improvements + Selling Costs) = Capital Gain

Capital Gains Exclusion for Your Primary Residence

Under IRS rules, if the home you're selling is your primary residence, you may be eligible to exclude a portion of the capital gain from taxation.  If the home you're selling is your primary residence, you may be able to exclude up to $250,000 in capital gains if you're single, or up to $500,000 if you're married and file jointly.

To qualify, you must have owned and lived in the home for at least two of the five years before the sale, and you must not have used this exclusion on another property in the past two years. This exclusion can make a significant difference in the net proceeds from your sale.

Example: A married couple sells their home for $800,000. They bought it for $400,000 and made $50,000 in qualifying improvements. After deducting $30,000 in selling expenses, their gain is $320,000. Since that's under the $500,000 exclusion, they owe no capital gains tax.

Why Tracking Home Improvements Matters

Your cost basis isn't just the purchase price; it includes the cost of capital improvements made to the home. These improvements can reduce your taxable gain by increasing your basis.

Capital improvements are upgrades that either add value to the home, prolong its useful life, or adapt it to new uses.  It is only necessary to meet one of these requirements.

Examples of improvements that increase your basis:

  • Adding a room or garage
  • Installing a new roof or HVAC system
  • Remodeling a kitchen or bathroom
  • Replacing windows or flooring
  • Building a deck or finishing a basement

Routine maintenance and repairs, such as painting, fixing a leaky faucet, or patching a roof, do not qualify. They may be necessary, but they don't add to your basis.

Pro Tip: Keep a Home File

Keeping a folder or digital record that includes purchase documents, receipts for improvements, contractor invoices, permits and plans, and records of major appliance installations can be valuable for proof in case of an audit.  Photos before and after can also be helpful.

This documentation can make a significant difference when it's time to sell and report your capital gain.  For more information, contact your tax professional and download IRS Publication 530.

In Summary

  • Capital gains are based on your sale price minus your adjusted cost basis.
  • Homeowners may exclude up to $250,000 (single) or $500,000 (married) in gains on their primary residence.
  • Documenting improvements is essential to reduce your potential tax bill.
  • Only capital improvements, not maintenance, add to your cost basis.

By understanding these rules and keeping good records, you can make the most of the tax advantages of homeownership and retain more of your equity when you sell.  Download our Homeowners Tax Guide.

Arlin Fisher Realtor PARK CO., REALTORS - (701) 261-8812 Fargo, ND (701) 261-8812 ND # 9568 / MN # 40508393 Greetings! I'm Arlin Fisher, a dedicated and accomplished REALTOR® proudly associated with PARK CO., REALTORS® renowned for its commitment to excellence in the real estate industry. My primary mission is to deliver exceptional customer service to my valued clients, ensuring their buying and selling experiences are tailored to meet their needs and aspirations. A solid educational foundation has enriched my journey in real estate. In 1991, I graduated with distinction from North Dakota State University, earning a Bachelor of Science in Business Administration and a second degree in Economics. This comprehensive academic background equipped me with the necessary skills to navigate the intricacies of the ever-evolving real estate market. Fueled by a passion for continuous growth and professional development, I pursued a Master of Business Administration degree in 1996 while maintaining a full-time job. This commitment to learning has been instrumental in my ability to stay ahead in the dynamic real estate landscape, bringing insightful strategies and expertise to every client interaction. For over 27 years, I have held diverse positions within a prominent technology company. My tenure in this organization has allowed me to collaborate with employees, partners, and customers from around the globe, providing me with invaluable cross-cultural experiences. These encounters have honed my ability to understand and anticipate my client's needs, making me a perceptive and empathetic advocate for their real estate goals. As your trusted representative, I am dedicated to maximizing your investments and facilitating a seamless process in all your residential real estate endeavors. Whether you're buying or selling, my goal is to make your experience stress-free, enjoyable, and ultimately successful. I sincerely appreciate my clients' trust in me and consider it an honor to guide them on their real estate journey. If you're seeking a results-driven REALTOR® who puts your satisfaction above all else, I'd be delighted to represent you. Please don't hesitate to contact me at your convenience; your business is genuinely valued, and I'm eager to be a part of your real estate success story. Contact Me Visit my Website Send a Referral Subscribe to Newsletter