A possible expansion of the federal tax break on profits from a home sale is back in the conversation. White House economic advisers discussed raising the exclusion or adjusting capital-gains rules for inflation this week. But the useful fact for homeowners is simpler: no new home-sale tax break has become law.

Anyone planning a move should still work from the existing Internal Revenue Service rules. That means checking whether the home qualifies as a main residence, estimating gain from adjusted basis rather than the sale price alone, and finding records for improvements before they disappear into old email accounts or storage boxes.

The proposal may matter later. The records matter now.

The short answer

Under current federal law, an eligible seller may exclude up to $250,000 of gain from the sale of a main home. The limit is up to $500,000 for many married couples filing jointly. Gain above the available exclusion may be taxable, but a large sale price does not automatically mean a large taxable gain.

The most important variables are eligibility and adjusted basis. In general, the IRS ownership and use tests require a seller to have owned and lived in the home as a main residence for at least 24 months during the five years before the sale. A seller generally cannot claim the exclusion if it was used on another home sale during the prior two years. Exceptions and partial exclusions can apply in some circumstances.

None of those rules changed when the tax idea was discussed. A White House spokesperson told CNBC that President Donald Trump considers policy proposals from advisers, but official announcements come from the administration. Any change to the statutory home-sale exclusion would require action by Congress.

Check the current rule before estimating a bill

Start with the IRS eligibility test, then calculate the gain. IRS Publication 523 walks sellers through the sequence: determine the amount realized from the sale, subtract selling expenses where allowed, calculate adjusted basis, and compare the resulting gain with the exclusion available to the taxpayer.

That order prevents a common mistake: comparing the selling price directly with the $250,000 or $500,000 exclusion. A homeowner who bought for $350,000, made qualifying improvements and later sold for $700,000 does not automatically have a $700,000 gain. The calculation begins with what the owner paid, then accounts for eligible adjustments and sale-related costs under IRS rules.

Reporting can also depend on the paperwork received at closing. The IRS says a seller who receives Form 1099-S generally must report the sale, even when the gain may be excludable. Sellers also must report a gain that is not fully excluded.

Build your adjusted-basis file now

Adjusted basis is the record-backed measure that can reduce the gain subject to tax. It commonly starts with the purchase price and may increase for qualifying settlement costs, additions and capital improvements. It can also decrease for items such as certain insurance reimbursements or depreciation claimed for business or rental use.

Ordinary repairs generally do not increase basis unless they are part of a larger improvement project. Replacing a broken faucet is not the same as remodeling a kitchen. Publication 523 provides examples, but the facts and documentation behind each project still matter.

  • Keep the purchase closing disclosure or settlement statement.
  • Collect contracts, invoices, receipts and permits for additions and long-lived improvements.
  • Record insurance or casualty reimbursements that affected the property.
  • Preserve records for rental use, a home office and depreciation.
  • Note the date of any earlier home sale for which an exclusion was claimed.
Purchase papers, renovation records and property-use notes organized in an adjusted-basis file
A basis file should preserve purchase, improvement and property-use records that may affect the gain calculation.

Organizing those items before listing the property can make the estimate more reliable and give a tax professional time to resolve gaps. It is much harder to reconstruct a roof replacement or major renovation after the contractor closes, a payment portal expires or years of messages have been deleted.

What lawmakers are considering

The current limits were set in 1997 and are not indexed for inflation. That has produced two different proposals in the House. The More Homes on the Market Act, H.R. 1340, would double the limits to $500,000 for an individual and $1 million for many joint filers, then add annual inflation adjustments. The No Tax on Home Sales Act, H.R. 4327, would eliminate the federal tax on qualifying home-sale gains. Both bills remain introduced rather than enacted.

The National Association of Realtors argues that fixed limits expose more long-time owners to tax as home prices rise and may discourage some sellers from moving. That is an industry position, not proof that changing the exclusion would unlock a large number of listings.

Distribution also matters. A Budget Lab analysis using the Federal Reserve's 2022 Survey of Consumer Finances estimated that about 10% of homeowner households had unrealized gains above the existing limits. It found that those households had average net worth of roughly $5.7 million, suggesting that a full repeal would disproportionately benefit wealthier and older homeowners. The effect of a narrower increase could differ, but lawmakers would still have to weigh cost, targeting and housing-market claims.

When to get professional help

Consider individualized tax advice before closing if the estimated gain approaches the exclusion, part of the property was rented or used for business, the home came through inheritance or divorce, ownership changed, or a health, employment or unforeseen-event exception might apply. State tax treatment can also differ from federal rules.

For now, do not accelerate or delay a sale solely because advisers floated a possible tax change. Verify eligibility under today’s rules, assemble the basis file and rerun the calculation if Congress actually changes the law. The best response to an uncertain proposal is a current, documented estimate—not a guess based on the sale price.

This article provides general information and is not tax, legal or financial advice.

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