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Tips to Simplify Capital Gains Calculation When You Sell Your Home - 12/3/2025

When it comes time to sell your home, one of the most important financial details you'll need to know is your "basis" in the property, that is, the total amount you've invested in the home over time. Your basis determines how much profit you'll report on the sale, which in turn impacts whether you owe capital gains taxes.

Many homeowners are surprised to learn that their original purchase price is just the starting point. Costs for major improvements, certain closing costs, and other qualified expenses can all be added to your basis, helping to reduce—or in some cases eliminate any taxable gain.

Keeping thorough and accurate records of these expenses is essential. Without documentation, the IRS may not allow you to include them in your basis, which could result in a larger tax bill than necessary.

Homeowners who maintain organized records from day one, including receipts, contractor invoices, and settlement statements, are better positioned to take full advantage of the capital gains exclusion and protect more of their home's appreciated value. Good recordkeeping is not just smart planning; it's a powerful tax-saving strategy.

  1. Keep Your Closing Statements - Save the HUD-1 or Closing Disclosure from both your purchase and sale—these document your original price, fees, and selling costs.
  2. Track All Capital Improvements - Keep receipts and records for upgrades that add value or extend the life of your home (e.g., room additions, roof replacement, new HVAC, kitchen remodel).
  3. Separate Repairs from Improvements - Basic repairs (like fixing a leak) aren't included in your cost basis, but capital improvements (like replacing the roof) are. Keep them categorized clearly.
  4. Store Records Digitally and Physically - Scan and store receipts in the cloud and keep a paper folder for easy access just in case the IRS ever questions your numbers.
  5. Include Purchase-Related Costs in Basis - Fees such as title insurance, recording fees, and certain legal costs can be added to your original basis.
  6. Include Selling Costs to Offset Gain - Real estate commissions, legal fees, title charges, and other seller-paid closing costs reduce your capital gain.
  7. Remember the $250K / $500K Exclusion - If you've owned and lived in the home for 2 of the last 5 years, you may exclude up to $250,000 (single) or $500,000 (married filing jointly) of capital gain.
  8. Document Your Time in the Home - Keep utility bills, driver's licenses, or tax records showing you lived there, in case you need to prove it to qualify for the exclusion.
  9. Account for Partial Use or Rental - If you rented out part of your home or used it for business (e.g., home office), that portion might not be excluded; keep good records.
  10. Keep a Running Cost Basis Worksheet - Create a simple spreadsheet to track your purchase price + improvements ... depreciation (if any) = adjusted basis.
  11. Don't Forget Depreciation Recapture - If you claimed depreciation (e.g., for a home office), you may have to recapture that at sale—note those deductions separately.
  12. Save Tax Prep Records Year to Year - Keep copies of past returns showing home-related deductions or improvements that impact your cost basis.
  13. Check for Disaster Relief or Grants - If you received disaster aid or energy tax credits for improvements, check if they affect your adjusted basis.
  14. Review Local and State Rules - Some states have different gain rules or forms; make sure you're familiar with both federal and local requirements.
  15. Consult a Tax Pro Before You List - A CPA can help project your estimated capital gain and verify what documents and records you'll need to support your claim.

The better your records, the less tax you may owe. Keeping clear, organized documentation of your home's financial history ensures you maximize your gain exclusion and avoid unnecessary surprises.  Download our Homeowners Tax Guide, as well as IRS Publication 530.

EXIT Prime Realty & EXIT Realty Mitchell ABR, SRS, C2ex, CREN, CREM, CLE EXIT Prime Realty & EXIT Realty Mitchell Mitchell, SD (605) 999-0276 15848 Our mission is to inspire a positive, enduring impact and to establish leadership within the Mitchell Real Estate Industry, while enhancing our reputation throughout South Dakota. Since our establishment in 2005, we have provided our clients with extensive knowledge and expertise in the real estate sector. As a locally owned company recognized on a national level, we offer our clients extensive reach within the real estate market. At EXIT PRIME REALTY and EXIT REALTY MITCHELL, we are guided by the following values: COMMITMENT. We are devoted to delivering the highest standard of service by being solution-oriented and consistently striving to meet our clients' needs. OWNERSHIP. We hold ourselves accountable to the highest standards, continuously raising the benchmark to foster improvement in our operations. DRIVE. We are determined to excel in all aspects of our work, collaborating as a cohesive team to support and encourage one another, while refusing to accept anything less than extraordinary outcomes. HUMILITY. We recognize that our success is built upon the diligent efforts of each team member, as well as the support of our families and clients. INTEGRITY. We are committed to honesty and consistently doing what is right for our team, our business, and our clients, which ultimately leads to mutual success and respect. PROACTIVENESS. We prioritize innovation and are continually seeking ways to enhance our collaboration with our team, our business, and our clients. EXCELLENCE. We deliver unparalleled professionalism and exceptional service, maintaining our position as leaders in innovation through education and technology. CHARITY. We are passionate about contributing to our community and making a positive difference by assisting those in need. Contact Me Visit my Website Send a Referral Subscribe to Newsletter