The Home Sale Tax Exclusion Has Not Changed Since 1997: What Long-Term Homeowners Need to Know

A Three-Decade-Old Rule Is Creating a Very Modern Problem

If you have owned your home for a significant number of years, the equity you have built represents real financial progress. For many long-term homeowners, that equity is one of the most valuable assets they own. But when it comes time to think seriously about selling and moving on, a tax rule that has not been updated since 1997 may be standing directly in the way of that decision.

The capital gains exclusion on home sales was designed to protect homeowners from owing taxes on the profit they made from selling their primary residence. When it was written into law nearly three decades ago, it was generous enough to cover the vast majority of sellers without any tax exposure. Today, in a housing market that looks almost nothing like it did in 1997, that same rule is creating a real and growing obstacle for long-term owners across the country.

What the Current Law Allows

Under existing federal tax law, homeowners selling their primary residence can exclude up to $250,000 in capital gains from federal taxes if they are single, and up to $500,000 if they are married filing jointly. To qualify, the home must have served as 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 calibrated for a market where most sellers would never come close to the cap. Today, in markets across the country where home values have doubled, tripled, or more over the past two to three decades, a meaningful number of long-term owners are sitting on gains that significantly exceed those limits. The exclusion has never been adjusted for inflation and has never been updated to reflect the dramatic appreciation that has reshaped housing values since it was written.

Why So Many Long-Term Owners Are Choosing to Stay Put

The financial math behind selling has become uncomfortable enough for a segment of long-term homeowners that staying has become the more appealing option, even when moving is something they genuinely want to do.

As Andrew Harkins explains, this dynamic plays out in a very concrete way. A homeowner who purchased their property for $200,000 and is now sitting on a home worth $700,000 faces a gain of $500,000. For a single filer, that puts $250,000 above the current exclusion threshold and potentially subject to federal capital gains taxes at rates that can reach 20 percent, before factoring in any applicable state taxes. What was supposed to feel like a reward for years of homeownership suddenly looks like a penalty for wanting to move forward.

When enough homeowners make this calculation and decide to hold rather than sell, the ripple effect reaches the broader market. Homes that would otherwise become available to buyers never come to market, and inventory in communities that could use more supply stays constrained.

What Washington Is Actively Debating

The policy conversation now happening in Washington is centered on whether the exclusion thresholds need to be modernized, and the discussion is serious enough that long-term homeowners should be paying close attention even without any final legislation in place.

Two approaches are being considered. The first is raising the exclusion caps to a new fixed amount that better reflects what home values actually look like in today's market. The second is indexing the exclusion to inflation going forward, which would mean the thresholds adjust automatically over time rather than remaining frozen until Congress acts again decades from now.

The argument connecting both proposals to housing supply is straightforward. If long-term owners feel more financially comfortable with the outcome of selling, more homes enter the market. Whether that effect would be large enough to move inventory numbers in a meaningful way is a point of debate among economists. Some analysts argue that most sellers already fall comfortably 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 influence behavior at scale.

What is not debatable is that the conversation is happening loudly enough and seriously enough that dismissing it would be a mistake for anyone with substantial equity and a potential move on the horizon.

The Planning Mistakes That Cost Long-Term Sellers the Most

Regardless of what ultimately happens in Washington, 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 during the years of ownership.

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

Timing is another area where advance planning produces real 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 your ultimate tax liability. These are variables that can sometimes be managed with thoughtful preparation, but only when that preparation begins well before you are under contract and running out of options.

As Andrew Harkins points out, the sellers who navigate this process most successfully are almost always the ones who had a serious conversation with both a tax advisor and a knowledgeable loan officer at least a year before they were ready to list, not in the weeks after signing a contract when the decisions have largely already been made.

What You Should Be Doing Right Now

You do not need to wait for a congressional vote to get your situation in order. If you are a long-term homeowner with meaningful equity and a move somewhere in your one to three year 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 gathering 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 might look 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.

Andrew Harkins works with long-term homeowners to build a clear picture of their options before decisions need to be made under pressure. Reach out to Andrew Harkins 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