Updated on January 7, 2026 by David Korpel

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Introducing The Hidden Tax Increase — a blog series examining four overlooked tax rules that have quietly grown more expensive with time. Over the next few months, we’ll walk through how these frozen provisions gradually increase the amount Americans pay, even when the tax law itself doesn’t change.
Follow along for all five parts to see how these hidden mechanisms work.

Part 4 — The Home Sale Capital Gains Exclusion: Why a 1997 Rule Is Now Costing Homeowners Thousands

Selling your home is one of the biggest financial events in your lifetime. And for nearly 30 years, the IRS has given homeowners an incredibly valuable tax break: the Section 121 home sale exclusion, which allows you to exclude:

• $250,000 of gain if single
• $500,000 of gain if married filing jointly

Unlike most tax breaks, you don’t have to buy another home. The gain is simply excluded — tax-free — as long as you meet the ownership and use tests.

But there’s one very big problem:

👉 These exclusion limits were set in 1997 and have NEVER been adjusted for inflation.

That’s almost 30 years of housing appreciation, inflation, and market shifts — all without any update.

Why the $250K/$500K Exclusion Once Worked Perfectly

In 1997:

• The median home price was about $126,000
• Mortgage rates hovered around 7.5%
• Homeownership was stable
• Annual home appreciation averaged ~3%

A $500,000 exclusion was more than enough for almost every homeowner in America.

Fast forward to today:

• Median home prices exceed $420,000 nationally
• Many coastal markets have doubled or tripled since 1997
• Some individual homes have appreciated more in 10 years than the exclusion amount

The mismatch is enormous.

What the Exclusion Should Be Today

If Congress had indexed the exclusion to inflation:

• $250,000 → ~$488,000
• $500,000 → ~$977,000

In other words:

👉 The real value of the exclusion has been cut nearly in half.

The Real-World Impact on Homeowners

Because the exclusion hasn’t changed, more homeowners owe capital gains tax even when:

• They didn’t “profit” in real terms
• The gain is mostly due to inflation
• Housing supply is tight and prices artificially inflated
• Mortgage rates have restricted mobility

Who is hit hardest?

• Long-term homeowners
• Homeowners in expensive states
• Retirees looking to downsize
• Multi-decade homeowners with significant appreciation

This can mean tax bills of tens or hundreds of thousands of dollars in markets like California, Colorado, Washington, New York, New Jersey, and Florida.

The Numbers Are Getting Worse Every Year📊

According to CoreLogic and NAR:

• In early 2000s: only 1–2% of home sellers exceeded the exclusion
• By 2022: 8–10% of home sales exceeded the exclusion
• In some markets: 20–30% of home sales exceed the limit

This is not a niche problem anymore — it’s a mainstream tax issue.

Why Congress Hasn’t Updated the Limits 📜

Three big reasons:

1. Updating the exclusion costs significant revenue

The IRS would lose billions if exclusion amounts doubled.

2. Housing policy is complicated

Expanding the exclusion might increase demand, raising home prices.

3. Stealth taxation

Letting the exclusion shrink via inflation quietly raises taxes without any vote.

Planning Strategies for Homeowners💡

Until Congress updates the exclusion (if ever), homeowners can mitigate tax exposure with smart planning:

1. Track Home Improvements

All qualifying improvements increase your basis and reduce taxable gain.

2. Use Partial Exclusion Rules (Little-Known!)

You may qualify for a partial exclusion due to:

• Job changes
• Health reasons
• Unforeseen circumstances (IRS-approved list)

3. Consider Timing Your Sale

Selling before gain exceeds the exclusion may save significant tax.

4. Review Ownership/Use Tests Carefully

You must satisfy 2 out of the last 5 years for both ownership and use.

5. For married couples: consider staggered sales or planning around marriage timing

There are legitimate circumstances where combining or separating ownership provides strategic benefit.

Conclusion: A 1997 Rule Is Out of Sync With Today’s Housing Market

The home sale exclusion was designed to reflect the real housing economy of the 1990s — but housing in 2025 is far more expensive, more volatile, and less predictable.

Until Congress updates the exclusion:

• More homeowners will face surprise tax bills
• The effective value of the exclusion will continue shrinking
• Planning ahead is essential, especially for long-term homeowners

About The Author

David Korpel

After graduating from college, David jumped right into public accounting, where he first met Mike. This experience established a well-rounded technical foundation. He gained a wealth of experience traveling the country performing audits, reviews, compilations, and tax engagements before joining up with Mike again as ENGAGE’s first employee.

As Chief Operating Officer, Dave is in charge of keeping our client relationships as fun, informative, educational, and productive as possible. He aims to be supportive, informative, proactive, and trustworthy. Whether wearing his bookkeeping, tax, forensic accounting, or social media hat, his focus consistently remains on adding value for our clients. He is inspired by the innovation and entrepreneurial spirit of clients. His passion for helping small business owners make sense of their numbers and remove any stress and anxiety related to their financials and taxes is second only to the love for his family.

Dave’s wife, Laura, son Lincoln, and daughter Luna are his motivation every day to grow, learn, and love what he does. They live in Skippack, PA and can often be found hiking on another new trail in the area or walking into town for a bite to eat. And boy, are they a hungry bunch!