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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.

Vikki Crossland and Brandi Cook CRS, ABR, SRES, SRS Meybohm Real Estate Aiken, SC (803) 645-8008 Licensed in SC and GA Aiken Homes Team – Brandi Cook + Vikki Crossland are the powerhouse mother-daughter duo behind the Aiken Homes Team, proudly serving Aiken, SC, and surrounding areas. With 61 years of combined real estate experience in the Aiken market, they have built a reputation as trusted, caring REALTORS® who deliver both results and personal attention. Their journey began at Meybohm Real Estate, where their professionalism and client-first service quickly set them apart. Today, they lead one of the area’s most award-winning real estate teams, consistently ranked among Meybohm’s top producers. Their credentials include Certified Residential Specialist (CRS), Accredited Buyer’s Agent (ABR), and Senior Real Estate Specialist (SRES). Alongside Brandi and Vikki is a small, dedicated team of REALTORS®, each an expert in their field, ensuring every client enjoys exceptional service, high-level communication, and a seamless experience from start to finish. Known for their personal care, responsiveness, and deep local knowledge, the Aiken Homes Team is committed to helping clients reach their goals with confidence. Whether you’re searching for homes for sale in Aiken, SC, preparing to buy your first home, or planning to sell your Aiken property fast, Brandi and Vikki provide the expertise, marketing power, and personal touch to make it happen. If you’re looking for Aiken real estate agents who combine experience, innovation, and genuine care, choose Brandi Cook + Vikki Crossland of the Aiken Homes Team—your trusted partners in every step of the real estate journey. Contact Me Visit my Website Send a Referral Subscribe to Newsletter