The Capital Gains Tax Rule From 1997 That Is Keeping Long-Term Homeowners Locked in Place

A Nearly Thirty-Year-Old Policy Is Colliding With Today's Home Values

If you purchased your home ten, fifteen, or twenty or more years ago the equity you have accumulated is almost certainly one of the most significant financial assets you own. That wealth represents years of payments, upkeep, and commitment and for many long-term homeowners it is the cornerstone of their entire financial picture.

But when the time comes to think seriously about selling and moving forward a tax rule that has not been updated since 1997 may be quietly working against the decision you want to make. That rule is now at the center of an active and serious conversation in Washington and if you are sitting on substantial equity the details of what is being discussed matter directly to your planning and your options over the next few years.

What the Current Exclusion Actually Allows

Federal tax law permits homeowners who sell their primary residence to exclude a portion of their profit from capital gains taxes. Single filers can exclude up to $250,000 in gains. Married couples filing jointly can exclude up to $500,000. To qualify the home must have been your primary residence for at least two of the last five years before the sale.

When Congress established these thresholds in 1997 the median home price in the United States was well under $200,000. The exclusions were intentionally generous, designed to shield virtually every seller from capital gains exposure entirely. Today in markets across the country where values have doubled, tripled, or appreciated even more dramatically over the past two to three decades a growing number of long-term homeowners are sitting on gains that significantly exceed those limits.

The thresholds have never been adjusted for inflation. They have never been updated to reflect the appreciation that has fundamentally reshaped housing values since they were written into law. And the gap between a 1997 policy and a 2025 housing market is now wide enough to change real behavior for real homeowners in communities across the country.

Why Long-Term Owners Are Staying Put Even When They Want to Move

The consequence of outdated exclusion limits is showing up in housing markets in a way that is increasingly visible. Long-term homeowners who genuinely want to make a change, whether that means downsizing, relocating, or transitioning into a different stage of life, are running the numbers on what selling would actually cost them and arriving at an uncomfortable conclusion.

As Jonathan Waunch explains the math is straightforward but sobering. A homeowner who purchased their property for $200,000 and is now sitting on a home worth $725,000 faces a gain of $525,000. For a single filer that puts $275,000 above the current exclusion threshold and potentially subject to federal capital gains taxes at rates reaching 20 percent before any applicable state taxes are considered. What was supposed to feel like the financial payoff for years of responsible homeownership can suddenly look like a significant and unexpected penalty for wanting to move on.

When enough homeowners run this calculation simultaneously and decide that staying is the more financially sensible choice the downstream effect on housing supply is real and measurable. Homes that would otherwise enter the market simply do not and communities that could benefit from more available inventory stay constrained in ways that ripple outward to affect buyers at every price point.

What Lawmakers Are Currently Debating

The policy conversation now happening in Washington centers on whether the exclusion thresholds need to be modernized for the first time in nearly three decades. Two approaches are under serious discussion. The first is raising the caps to a new fixed dollar amount that better reflects what home values actually look like across the country today. The second is indexing the exclusion to inflation going forward so that thresholds adjust automatically over time rather than remaining frozen until Congress acts again decades from now.

Both proposals are tied to the same underlying argument about housing supply. If long-term owners feel more financially comfortable with the outcome of selling more homes enter the market. Whether the effect on inventory would be large enough to produce meaningful relief is debated among economists. Some argue that most sellers already fall under the current thresholds and would not be directly affected by a higher cap. Others believe the barrier is real and significant enough in high-appreciation markets to genuinely shift seller behavior at scale.

What is clear is that the conversation is happening seriously enough and loudly enough that dismissing it would be a mistake for any long-term homeowner with substantial equity and a potential move anywhere on the planning horizon.

The Planning Mistakes That Are Costing Long-Term Sellers the Most

Regardless of what ultimately happens with the exclusion thresholds there are steps long-term homeowners can take right now that directly affect how much of their gain they keep when they eventually sell. The most consistently overlooked involves documentation of capital improvements made throughout the years of ownership.

Significant upgrades including room additions, major renovations, roof replacements, new HVAC systems, and other substantial improvements can all be added to your cost basis. A higher cost basis means a smaller taxable gain at the point of sale. Without documentation to support those additions the financial benefit of those investments disappears entirely and you pay taxes on gains that your own spending on the property should have reduced.

Timing is another area where advance planning produces real and measurable results. The calendar year in which a sale closes, your overall income picture for that year, and how the proceeds interact with other financial decisions can all affect what you ultimately owe. These variables can be managed thoughtfully but only when that planning begins well before you are under contract and options have already narrowed.

As Jonathan Waunch points out the sellers who come through this process in the strongest financial position are almost always the ones who had a serious conversation with both a tax professional and a knowledgeable loan officer at least a year before they were ready to list, not in the final weeks after signing a contract when the most consequential decisions have effectively already been made.

What You Should Do Before the Rules or the Market Shifts

You do not need to wait for a congressional vote before getting your own situation organized. If you are a long-term homeowner with meaningful equity and a move somewhere in your one to three year planning horizon taking stock of your position now puts you in a far stronger place regardless of what ultimately happens with the exclusion thresholds.

Start by pulling together records of your original purchase price and any documented improvements made since buying. Have a preliminary conversation with a tax professional to estimate your potential gain under current law and understand what your exposure looks like. And connect with a loan officer who can help you think through how a sale fits into your broader financial picture and what your options look like on the other side of the transaction.

Jonathan Waunch works with long-term homeowners to build clarity and a real plan before decisions need to be made under pressure or on a compressed timeline. Reach out to Jonathan Waunch to get ahead of the conversation before the market or the tax code shifts around you.

Sources

IRS.gov NAR.realtor TaxFoundation.org Forbes.com Realtor.com