Capital Gains Tax Is Keeping Homeowners From Selling — And It's Making the Housing Crisis Worse
If you've ever wondered why so few homes are hitting the market even as demand remains high, part of the answer may be hiding in the tax code. The United States Senate recently heard powerful testimony about how federal capital gains taxes on home sale profits are quietly discouraging millions of homeowners from listing their properties — and industry leaders say the consequences are rippling across the entire housing market.
At the heart of the debate is a decades-old tax rule that hasn't kept pace with today's skyrocketing home values. As the gap between what homeowners paid for their properties and what those homes are now worth has widened dramatically, more sellers are finding themselves facing a significant tax bill when they try to cash out — and many are simply choosing not to sell at all.
What the Senate Heard: NAR Makes the Case for Change
Kevin Brown, president of the National Association of Realtors® (NAR), testified before the Senate Committee on Banking, Housing and Urban Affairs, urging lawmakers to modernize the capital gains tax exclusion limits that apply to home sellers. Under current federal law, single homeowners can exclude up to $250,000 in profits from the sale of a primary residence from capital gains taxes, while married couples filing jointly can exclude up to $500,000.
Those thresholds were established back in 1997 — a time when the median home price in America was a fraction of what it is today. Nearly three decades later, home values in many markets have climbed so dramatically that sellers in cities like San Francisco, New York, Miami, and Seattle routinely see profits that blow past those limits, leaving them facing a federal tax bill that can run into the tens of thousands of dollars.
NAR is calling on Congress to double those exclusion limits, which would allow single filers to exclude up to $500,000 in profits and married couples to exclude up to $1 million. Brown argued before the Senate that this change would directly translate into more homes becoming available on the market — a critical need at a time when housing inventory remains severely constrained nationwide.
The "Home Equity Penalty" Locking Seniors Out of the Market
One of the most compelling points raised during the Senate testimony focused on older homeowners who have spent decades building equity in their homes, only to find themselves effectively trapped by the tax consequences of selling.
"Just like people were locked into their homes at lower interest rates, seniors are often locked in because of the home equity penalty," Brown told the committee. "This legislation expands existing housing stock and gives seniors the opportunity to tap equity that they have counted on for retirement."
This is a particularly acute problem for retirees and near-retirees who purchased their homes in the 1980s, 1990s, or early 2000s at prices that are now a tiny fraction of today's market value. Many of these homeowners are living in properties that are larger than they need, but the prospect of handing over a substantial portion of their hard-earned home equity to the federal government makes downsizing financially unattractive. The result is a large supply of homes that technically exist but are effectively off the market.
How Higher Exclusion Limits Could Unlock the Housing Market
The connection between capital gains tax policy and housing inventory is straightforward: when long-term homeowners feel financially free to sell, they do. And when they sell, a chain reaction of opportunity opens up throughout the market.
- Seniors and downsizers list their larger homes, adding much-needed inventory to the market.
- Move-up buyers — families looking for more space — are able to purchase those properties, freeing up their own starter homes.
- Those starter homes become available to first-time buyers who are currently struggling to find affordable entry-level properties.
- Increased inventory helps cool price growth, making homeownership more accessible across the board.
Brown made exactly this argument in his Senate testimony, noting that the ripple effect of unlocking equity-rich homeowners could benefit buyers at every level of the market. "In turn, move-up buyers can then buy homes, thus freeing up houses for first-time homebuyers," he said.
Why This Matters Now More Than Ever
The timing of this Senate discussion is significant. The U.S. housing market has been struggling with historically low inventory for years, driven by a combination of factors including the so-called "lock-in effect" — where homeowners who secured ultra-low mortgage rates during 2020 and 2021 are reluctant to sell and take on a new mortgage at today's higher rates. The capital gains tax issue compounds this problem by adding yet another financial disincentive to listing a home.
According to NAR research, the outdated exclusion thresholds are discouraging millions of homeowners from selling, a figure that represents an enormous untapped supply of housing that the market desperately needs. With first-time buyer affordability at historically challenging levels and rental costs elevated across most major metros, any policy tool that could meaningfully increase inventory deserves serious legislative attention.
What Comes Next: A Legislative Path Forward
The NAR-backed proposal to double the capital gains exclusion limits is not a new idea — similar legislation has been introduced in Congress in recent years under various names, including the Nest Egg Protection Act. However, the Senate hearing signals renewed momentum and bipartisan interest in addressing the issue as part of a broader conversation about housing affordability and supply.
Raising the exclusion limits would not require homeowners to sell — it would simply remove one of the most significant financial barriers for those who are ready to do so. For a housing market that continues to be defined by too much demand chasing too little supply, that could make a meaningful difference.
The Bottom Line for Homeowners
If you're a long-term homeowner sitting on substantial equity, the current capital gains tax rules may be costing you more than just a tax bill — they may be influencing one of the biggest financial decisions of your life. Staying informed about proposed changes to exclusion limits is important, particularly if you're considering selling in the next few years.
As Congress continues to debate housing policy, the capital gains tax exclusion is shaping up to be one of the most impactful — and underappreciated — levers available to lawmakers looking to address America's housing shortage without spending a single taxpayer dollar.