The More Homes on the Market Act amends Internal Revenue Code section 121 to raise the tax-exempt gain on the sale of a principal residence. The bill increases the single exclusion from $250,000 to $500,000 and the married filing jointly exclusion from $500,000 to $1,000,000, and directs annual adjustment for inflation beginning after 2024.
This changes the tax treatment of home sales that produce large gains and will matter to homeowners in high-appreciation markets, tax practitioners, and federal budget analysts. It preserves the existing structure of section 121 (ownership and use tests) while materially enlarging the dollar amounts that can be excluded from income.
At a Glance
What It Does
The bill replaces the existing $250,000/$500,000 exclusion amounts in IRC §121(b) with $500,000/$1,000,000 and adds a new paragraph requiring future automatic cost‑of‑living adjustments. It also specifies rounding to the next lowest $100 for indexed amounts.
Who It Affects
Homeowners who sell their principal residence, especially married couples and sellers in high-cost or fast-appreciating housing markets; tax preparers and payroll/benefits teams who advise on realized-gain timing; and federal and state revenue offices tracking taxable income changes.
Why It Matters
By raising and indexing the exclusion, the bill reduces taxable gains on many home sales and may alter decisions on listing and timing of sales. It also creates a recurring revenue impact for the federal budget and potential conformity questions for state tax codes that follow federal definitions.
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What This Bill Actually Does
Current law under Internal Revenue Code section 121 lets individuals exclude up to $250,000 of gain ($500,000 for married couples filing jointly) when they sell a home that was their principal residence and that they owned and used for at least two of the five years before the sale. The bill keeps those ownership and use rules intact but doubles the dollar thresholds that trigger the exclusion, so qualifying single sellers would exclude up to $500,000 and joint filers up to $1,000,000.
The bill also adds a new indexing rule that directs the Treasury’s cost‑of‑living adjustment formula (as used for certain tax provisions) to be applied to the new dollar amounts for tax years beginning after 2024, using 2023 as the base year in the COLA calculation. When the indexed increase isn’t a multiple of $100, the statute requires rounding down to the next lowest $100, which will create discrete dollar steps as CPI changes accumulate.Practically, the change affects realized‑gain calculations: sellers who meet the existing ownership/use tests simply apply the higher exclusion to reduce taxable gain.
The bill’s effective date applies to sales and exchanges that occur after enactment, so gains recognized before that date remain governed by current thresholds. The amendment is surgical in scope — it alters only the exclusion amounts and the indexing rule and does not change other section 121 mechanics such as the two‑out‑of‑five‑years test or rules for nonqualified use and depreciation recapture.
The Five Things You Need to Know
The bill amends IRC §121(b) to replace every statutory appearance of $250,000 with $500,000 and $500,000 with $1,000,000.
It adds a new paragraph directing annual cost‑of‑living adjustments for those $500,000/$1,000,000 amounts beginning for taxable years after 2024, using the COLA method in section 1(f)(3) but substituting ‘2023’ for ‘2016’.
Indexed increases that are not multiples of $100 must be rounded down to the next lowest $100.
The amendment applies to sales and exchanges occurring after the date of enactment — it does not retroactively adjust gains realized before enactment.
The bill leaves intact the existing ownership/use tests and other operative provisions of section 121; it changes only the exclusion amounts and adds indexing.
Section-by-Section Breakdown
Every bill we cover gets an analysis of its key sections.
Short title — 'More Homes on the Market Act'
This single-line section names the legislation. It has no operative tax effect but frames the bill's policy intent.
Doubling the exclusion amounts in IRC §121(b)
These subparagraphs replace the numeric exclusions throughout section 121(b): the individual exclusion amount referenced as $250,000 is changed to $500,000, and the joint filer amount referenced as $500,000 is changed to $1,000,000. The change is textual and broad — any statutory cross‑references within §121(b) that pointed to the prior dollar figures now point to the new, higher figures. The substitution does not change the qualifying tests (ownership, use, or timing of prior exclusions).
New inflation‑adjustment paragraph for the exclusion amounts
This provision inserts a new paragraph that requires the $500,000 and $1,000,000 figures to be increased for inflation for taxable years beginning after 2024. It invokes the COLA mechanism from IRC section 1(f)(3), explicitly substituting 2023 as the base year in the calculation, and adds a rounding rule that floors the resulting amount to the nearest lower $100. That creates a deterministic indexing path but with stepped updates because of the rounding rule.
Effective date — sales and exchanges after enactment
This clause makes the amendments operative only for sales and exchanges occurring after the bill becomes law. Any sale that closed before enactment remains subject to the old exclusion levels. The clear, transaction‑based effective date minimizes ambiguity about which transactions receive the higher exclusion.
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Explore Finance in Codify Search →Who Benefits and Who Bears the Cost
Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- Homeowners with large, taxable gains — Sellers whose gains previously exceeded $250,000 (or $500,000 for joint filers) will now exclude a larger share or all of their gain, reducing federal income tax owed on sale.
- Married couples filing jointly — The joint exclusion doubles to $1,000,000, which most directly benefits married owners in high-appreciation or high-cost jurisdictions where single thresholds previously left taxable gain.
- Real estate professionals and markets in high‑cost areas — By increasing after‑tax proceeds for sellers, the change may lower the lock‑in effect for owners sitting on large untaxed gains, potentially increasing listings and activity in expensive metro markets.
- Tax preparers, CPAs, and financial advisers — Professionals advising on sale timing, basis adjustments, and tax planning will need to apply the new thresholds and indexing rules and will see increased demand for counseling around timing and state conformity.
Who Bears the Cost
- Federal Treasury and budget — Raising and indexing the exclusion reduces taxable income reported on individual returns, producing a measurable federal revenue loss relative to current law.
- State governments that conform to federal definitions — States that automatically piggyback on federal taxable income may see lower state tax receipts unless they decouple or enact adjustments.
- IRS administration — The agency must implement the new indexed thresholds, update forms and guidance, and handle taxpayer inquiries and amended returns, which creates administrative and enforcement costs.
- Taxpayers near the new thresholds and their buyers — The rounding-to-$100 rule and stepwise indexing could create cliff effects where small CPI changes yield no benefit or produce discrete jumps; buyers or marginal sellers who planned around prior thresholds may face uncertainty.
Key Issues
The Core Tension
The central dilemma is between boosting after‑tax proceeds to encourage owners to sell (potentially increasing housing supply and reducing lock‑in) and accepting a permanent hit to federal revenue and selective benefits that primarily assist homeowners who already meet section 121’s qualifications; the bill raises the ceiling but not the pool of qualifying sellers, creating distributional and budgetary trade‑offs with no simple resolution.
The bill increases dollar exclusions without changing the ownership and use tests, two elements that shape who actually qualifies. That creates a policy tension: the adjustment raises the ceiling but does not broaden eligibility, so the benefit concentrates among sellers who already meet section 121’s tests — typically longer‑term owners in appreciating markets — and may do less to help recent buyers or renters.
The indexing mechanism is precise but idiosyncratic: it borrows the COLA formula from section 1(f)(3) with a one‑time substitution of the 2023 base year, and then applies a floor to the next lowest $100. The combination produces predictable step increases but also creates small discontinuities that could matter for taxpayers planning sale timing.
Implementation opens practical questions. The IRS will need to publish updated guidance, forms, and worksheets showing how the indexed amounts are computed each year.
States that conform to federal income definitions will face automatic revenue changes unless they act to decouple or adjust conformity provisions. The statute is silent on anti‑abuse measures beyond existing section 121 rules; doubling the exclusion increases incentives for timing and household structuring (for example, marriage or filing status timing) around sales, which could invite litigation or future regulatory guidance on application of the ownership/use tests and on recordkeeping standards for basis and period-of-use documentation.
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