OBBBA & Capital Gains Tax: What Changed, What Didn't

OBBBA Capital Gains Tax Changes: What Stayed and What Moved

Investors expected the worst when the 2025 tax bill reached the floor. Rates on long-held investments were the loudest fear all spring. The One Big Beautiful Bill Act, which everyone now calls OBBBA, left the rate structure alone.

What it changed instead is the machinery around your gains. Startup stock exclusions expanded, the Opportunity Zone program became permanent, and the deduction for pass-through income survived. The estate exemption jumped, and the state tax deduction cap loosened for high-tax states.

This guide isolates the investor-relevant changes from the surrounding noise. Each section separates what actually moved from what merely sounded scary during debate season. You will also find worked examples that show the dollar effect of every major provision.

The bill runs more than nine hundred pages, and most of it concerns unrelated programs. Investors need roughly a dozen provisions from the whole document. Those provisions cluster into four groups: exclusions, deferrals, deductions, and exemptions.

A companion piece covers the entire law in broader terms. Our OBBBA summary for investors handles provisions beyond capital gains. Here the focus stays on gains, exclusions, and planning angles.

The Headline: Your 0/15/20 Rates Are Now Permanent Law

The core rate schedule that investors live by survived intact. Long-term gains still pay 0%, 15%, and 20%, tiered by taxable income. Short-term gains remain ordinary income taxed at rates from 10% up to 37%.

OBBBA made the 2017 rate structure permanent rather than letting it sunset after 2025, as the IRS overview confirms. Without the bill, the top ordinary rate would have returned to 39.6% in 2026. The bill locked the current brackets and their annual inflation adjustments in place.

For 2026, the 0% rate reaches up to $49,450 of taxable income for single filers. Joint filers keep the 0% rate until taxable income reaches $98,900. The 15% band extends to $545,500 single and $613,700 joint before the 20% rate begins.

Those thresholds still move with inflation every year, and our 2027 bracket projections track the trajectory. The rates themselves, however, are now statutory bedrock. Planning can finally use five-year horizons without sunset guesswork.

Permanence changes behavior in one underrated way. Investors no longer need to rush sales into December 2025 to beat an expiring schedule. Holding periods can follow business logic instead of legislative deadlines.

Short-term discipline still matters more than any rate debate. Gains held under twelve months remain fully ordinary income at up to 37%. The one-year holding line remains the cheapest tax planning tool available.

QSBS: The Biggest Capital Gains Change in the Bill

No provision changed more for investors than the Section 1202 qualified small business stock exclusion. Stock issued after July 4, 2025 now earns partial exclusions on a faster schedule. The old law made founders wait out five full years before any exclusion.

The per-issuer ceiling also grew. Post-enactment stock carries a $15 million exclusion cap per issuer, indexed for inflation after 2026. The alternative 10-times-basis election remains available, whichever amount is greater.

Companies carrying $75 million or less in aggregate gross assets now qualify for the exclusion. The old ceiling sat at $50 million, which blocked many growth-stage businesses. Founders and early employees gained the most practical flexibility.

Consider a founder who sells stock issued in August 2025 after a three-year hold. A $2 million eligible gain now excludes 50%, leaving $1 million taxable. Under the prior law, the entire $2 million would have been taxable at 23.8%.

Our full guide on the qualified small business exclusion covers eligibility tests. The C-corporation requirement, the active business rules, and the original issuance rule all survived untouched.

Documentation discipline decides real-world QSBS outcomes. Keep the issuance records, board minutes, and asset statements that prove qualification at every test date. The exclusion is claimed on the return, but the evidence lives in your files.

Opportunity Zones: The Deferral Machine Gets Permanent

The second structural change made the Opportunity Zone program permanent. Under the original law, gains invested in a QOF stayed deferred only through 2026. Every deferred gain would have been recognized at the end of 2026 no matter what.

OBBBA replaced that cliff with a rolling five-year deferral for future investments. A gain realized after December 31, 2026 can now be invested within 180 days. The tax then waits until the fifth anniversary of that investment, or an earlier sale.

The bill added a rural enhancement that deserves attention from real estate investors. Qualified rural opportunity funds earn a 30% basis step-up once the five-year holding milestone arrives. Standard urban and suburban funds keep the existing 10% step-up level.

Fresh zone designations begin in January 2027 under a new decennial mapping cycle. Our guides on QOZ gain deferral mechanics and the 10-year exclusion rules cover the details. The ten-year full exclusion on fund appreciation carried forward unchanged.

The overlap period deserves a calendar note. Old zones stay active through 2028 while new zones start in January 2027. Investments made during the overlap follow the rules attached to the zone and investment date, so documentation of both matters.

QBI and the 20% Pass-Through Deduction Made Permanent

The qualified business income deduction under Section 199A was scheduled to die after 2025. Losing it would have raised effective tax rates on every pass-through business owner. OBBBA made the 20% deduction permanent instead.

Investors who earn K-1 income from operating businesses feel this directly. The deduction lowers the ordinary-income bucket that sits next to your capital gains. It also preserves the strategic value of splitting income between wages, distributions, and gains.

The bill added a minimum deduction of $400 for taxpayers with qualifying active business income. Service-business limitations remain, phased above roughly $75,000 single and $150,000 joint. Those thresholds now index with inflation going forward.

Pass-through owners should rerun their entity strategy models this year. The permanence changes the calculus on salary versus distribution splits. It also changes the math on grouping activities and timing asset sales.

A quick example shows the dollar weight involved. A partner with $120,000 of qualified income outside service limits receives a $24,000 deduction. At a 32% marginal rate, that deduction is worth about $7,680 every single year.

SALT Cap Relief Changes the After-Tax Math for Investors

The state and local tax deduction cap rose from $10,000 to $40,000 starting in 2025. The cap grows 1% annually, reaching $40,400 for 2026. Residents of California, New York, and New Jersey captured most of the relief.

The benefit phases down for very high earners. Above $500,000 of modified AGI, the cap shrinks toward a $10,000 floor. Most investors under that threshold can now deduct far more state tax.

A practical example makes the stakes concrete. A California investor paying $30,000 in property tax and $25,000 in state income tax previously deducted only $10,000. The 2026 cap of $40,400 restores roughly $30,400 of deductions.

At a 37% federal rate, that restored deduction is worth about $11,248 per year. It effectively rebates part of the state tax paid on realized gains. High-tax-state investors should recheck the itemize-versus-standard decision every year now.

What Did Not Change: The Provisions Investors Feared Losing

Roughly half the investor anxiety this spring targeted provisions that never moved. The bill left the entire foundation of investment taxation in place. This table is the quick answer to the question clients asked most.

Two of those survive with special significance. The home sale exclusion still shields most primary-residence sales entirely. The wash sale rules still police year-end loss harvesting.

Proposals to tax unrealized gains at death also went nowhere. Step-up in basis remains the single largest structural benefit for family portfolios. Heirs inherit appreciated property with a fresh basis and zero embedded tax.

Exchange investors should note one procedural constant as well. The 45-day identification and 180-day completion clocks under 1031 exchange rules never moved. Missed deadlines still forfeit deferral regardless of any federal legislation.

The 3.8% NIIT thresholds remain fixed by statute. The trigger amounts have never indexed, and this bill did not change that. Cross-check large sales against those thresholds every December.

Estate and Gift Exemption Jumps to $15 Million

OBBBA set the unified estate and gift exemption at $15 million per person under Public Law 119-21. The change applies to taxable years beginning after December 31, 2025. A married couple can now shelter $30 million without planning gymnastics.

The IRS estate tax guidance reflects the higher unified credit. The exemption indexes for inflation in future years, so the number grows annually.

Compare that with 2025, when the inflated exemption sat near $14 million. Families with $14 to $30 million in assets gained the most breathing room.

Appreciated portfolios benefit twice over under this structure. The step-up at death eliminates embedded capital gains, and the larger exemption removes transfer tax. Heirs receive both the property and a clean basis simultaneously.

Lifetime gifting also gained room under the new ceiling. Donors can now move $15 million of appreciated assets during life with zero gift tax. The carryover basis trap still applies to gifts, which is why the step-up comparison matters.

Our inherited property tax guide explains the carryover mechanics. Estate documents drafted under older, smaller exemption assumptions deserve a 2026 review. Trust formulas tied to the exemption amount frequently need updating.

Planning Moves Worth Making Before Year-End

Permanence converts vague anxiety into concrete calendar decisions. The moves below apply the bill's changes before the 2026 window narrows. Rank them by your own portfolio situation.

• Model a QSBS checkup for any private company stock issued after July 4, 2025.
• Time 2027 gain realization so deferral elections land under the new rolling rules.
• Rerun the itemize decision with the $40,400 SALT cap before December payments.
• Refresh trust funding plans against the $15 million estate exemption.
• Revisit pass-through compensation splits now that Section 199A is permanent.
• Harvest losses under the unchanged wash sale rules to offset embedded gains.

Each move interacts with your state tax picture and income level. Our roundup of legal capital gains strategies ranks the full menu. Run your numbers through the free capital gains calculator before committing.

One caution deserves the closing space here. QSBS planning, OZ deferrals, and estate transfers all require professional execution. The statutes reward preparation, and the penalties for sloppy elections are unforgiving.

Who Gains Most and Who Gains Least Under the New Law

Winners are easy to name with the provisions above in hand. Startup founders with sub-five-year exits gained liquidity flexibility worth millions. Real estate investors in rural zones picked up a tripled basis step-up.

High-tax-state homeowners earning under $500,000 captured real SALT relief. Pass-through owners kept a 20% deduction that was months from extinction. Families holding $15 to $30 million escaped transfer-tax cliffs entirely.

The losers are harder to find because the bill raised few investor rates. Investors above the SALT phase-down range saw minimal benefit from the cap. Fiscal conservatives note the deficit cost, which shapes future debates.

Neutral parties include anyone whose gains flow through retirement accounts. IRA and 401(k) growth never touched these provisions in the first place. The retirement account tax rules remain their own separate universe.

The bottom line reads differently than the spring headlines promised. Rates held, exclusions grew, and deadlines became predictable. Investors who re-plan against the actual statute rather than the noise will capture the difference.