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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!

Margaret Thoenen Broker-Salesperson, CRS, GRI Action Realty of Jefferson City, Inc Jefferson City, MO (573) 690-0113 Margaret Thoenen 2024 is the 40th Anniversary of Action Realty of Jefferson City, Inc. Margaret Thoenen has been active in real estate and community development for over 50 years. She and her husband, Lawrence, started Lawrence Thoenen Homebuilders in 1965. As a team, they worked hard to build affordable, high-quality family housing for many families in Jefferson City and surrounding areas. In 1984, Margaret began the next chapter in real estate as a Broker-Salesperson with Action Realty of Jefferson City, Inc. As Jefferson City continued to grow, so did Margaret’s list of treasured clients and friends. To this day, Margaret enjoys working with clients she has served for many years. Margaret has seen it all: high interest rates in the 1980s, the Real Estate recession in 2008, and the lowest interest rates in the early 2010s! Her commitment to education has not wavered. She has earned the GRI (Graduate Realtor Institute) and CRS (Certified Residential Specialist) designations and continues to stay abreast of the new developments in the Real Estate industry to ensure her clients receive top-notch service through any transaction. In addition to her real estate business, Margaret still serves as President of Lawrence Thoenen Homebuilders. She is an active member in many organizations; Jefferson City Area Board of REALTORS®, Missouri Association of REALTORS®, National Association of REALTORS®, Mid-Missouri Apartment Association, National Homebuilders Association, Home Builders Association of Central Missouri, and Jefferson City Chamber of Commerce. She is a member of St. Joseph Cathedral in Jefferson City. Contact Me Visit my Website Send a Referral Subscribe to Newsletter