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Don't Let Capital Gains Tax Surprise You - 6/11/2025

If you've owned your home for a long time, chances are its value has increased—maybe even doubled, tripled, or more. But did you know that a law written in 1997 still limits the amount of capital gains tax exclusion, despite skyrocketing home prices?

Currently, homeowners can exclude up to $250,000 in gains if single or $500,000 if married filing jointly when selling their primary residence, as long as they've lived there for at least two of the last five years. But with today's home values, more sellers are finding themselves exceeding this exclusion and facing a significant tax bill.

More Homeowners Are Now Affected

In 2023, nearly 8% of home sales surpassed the $500,000 capital gains exclusion. However, in high-cost states like California (28.8%), Hawaii (23.8%), Washington, D.C. (22.1%), Massachusetts (17.9%), and Washington State (15.2%), the numbers were far higher, according to CoreLogic.

What Happens If You Exceed the Exclusion?

If a homeowner sells their home for more than the exclusion allows, the excess profit is subject to long-term capital gains tax rates of 15% to 20%, plus an additional 3.8% net investment income tax for high earners.

For example, if a married couple sells their home with $1 million in gains, they can exclude $500,000, but the remaining $500,000 is taxed at these rates. Depending on their income bracket, they could owe between $95,000 and $119,000 in taxes; an expense many homeowners don't anticipate.

How to Reduce Your Capital Gains Tax Liability

The key to minimizing capital gains tax is increasing your home's cost basis, which is done by tracking capital improvements made over the years. Many homeowners are aware that large-scale renovations count, but small-dollar upgrades also qualify and can add up significantly over time.

What qualifies as capital improvements:

  • Kitchen and bathroom remodels
  • New roofs, HVAC systems, and water heaters
  • Adding a deck, patio, or additional living space
  • Energy-efficient upgrades like new windows or solar panels
  • Permanent landscaping enhancements, like retaining walls or irrigation systems

However, repairs and maintenance (like painting, fixing leaks, or replacing worn carpet) typically do not qualify unless they are part of a larger renovation.

The Importance of Tracking Expenses

To take advantage of these tax-saving opportunities, homeowners must document their improvements throughout their entire homeownership.

  • Keep receipts for materials and labor
  • Take before-and-after pictures of major renovations
  • Save contractor invoices or permits for work done
  • Maintain a running list of all home upgrades

Without proper records, homeowners could lose out on thousands in potential tax savings.

Stay Informed and Plan Ahead

The capital gains tax law may not have adjusted to today's market, but smart homeowners can take proactive steps to minimize their tax burden. If you're thinking about selling, now is the time to gather your records and consult with a tax professional to ensure you're maximizing your cost basis.

For more information, download IRS Publication 523 and our Homeowners Tax Guide for a detailed look at what qualifies.

If you have any questions about how today's home values impact your potential sale, feel free to reach out...I'm happy to help!

Tamara Towns-Pozorski CRS, ABR, GRI, PSA, SFR Century 21 Benefit Realty , WI (262) 470-2300 Wisconsin Licensed Broker: 56736-90 You will find that this buying or selling adventure isn’t predictable. You will find that things will come up that are tough or unexpected or unpleasant. It may not be seamless or painless. But my job is to help you through each one of those steps, so you can relax and know that your home and your family are in good hands. You are going to ask a lot of questions, and it’s my job to find the answers. You are going to get frustrated at times, and it’s my job to listen and help find resolutions. There may be surprises and delays, but my job is to make this as smooth a transaction as it can be. We can’t predict exactly how this is going to go, but you can be sure that I’ll be there for you every step of the way. A little about me: In 2012, I became a licensed Real Estate agent. I started working with Century 21 Benefit Realty in 2013. I’ve helped my clients buy and sell houses from: $63,500 to $1,200,000 500 sq. ft. to 9,000 sq. ft. 0.07 acres to 106 acres I have a great history of helping my clients buy and sell homes, investment properties, condos, and vacant lots. I have over $95 million in total career sales. My passion is helping people make their real estate dreams a reality! I want to help you make the best decision for YOU by listening to your wants, needs, and dreams! I will utilize my years of professional and personal experience, knowledge, and resources to achieve your goal. Contact Me Visit my Website Send a Referral Subscribe to Newsletter