The bill amends the Internal Revenue Code by removing the subsection of Section 199A that caused the qualified business income (QBI) deduction to expire. Practically, it converts the 20% pass‑through deduction—created under Section 199A—into a permanent feature of the individual tax code.
That change matters because it eliminates future uncertainty for owners of sole proprietorships, partnerships, S corporations, and certain trusts and estates that use the QBI deduction. It also locks in a significant individual‑tax preference with implications for federal revenue, tax planning, and state tax conformity.
At a Glance
What It Does
The bill amends Section 199A of the Internal Revenue Code by striking subsection (i), the statutory sunset provision, and thus removes the expiration date for the qualified business income deduction. The amendment takes effect for taxable years beginning after December 31, 2025.
Who It Affects
Owners of pass‑through entities (sole proprietors, partners, and S corporation shareholders), certain beneficiaries of trusts and estates, tax preparers, and state tax authorities that conform to the federal tax base. Federal budget analysts and tax policy shops will also need to account for the permanent change.
Why It Matters
By making the QBI deduction permanent, the bill ends recurring legislative debates and reduces planning uncertainty, while permanently locking in a major individual‑tax preference originally enacted by the Tax Cuts and Jobs Act.
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What This Bill Actually Does
Section 199A, enacted in 2017, gives many non‑corporate business owners a deduction equal to up to 20% of qualified business income from pass‑through activities, subject to several limits and phaseouts (including specified service trade or business rules and wage/property tests). This bill does one narrow, definitive thing: it removes the subsection of Section 199A that set a sunset date for the deduction.
In other words, the existing text that creates and governs the QBI deduction stays intact; only the provision that automatically terminated it after a date is gone.
Operationally that means taxpayers preparing returns for taxable years beginning after December 31, 2025, will continue to be able to claim the QBI deduction under the same rules that exist today. The bill does not rewrite the calculation, modify income thresholds, change the specified service trade or business (SSTB) definitions, or alter the wage and unadjusted basis in qualified property (UBIA) limitations.
It also does not add new reporting requirements, filing forms, or compliance timelines; the Internal Revenue Service will continue to administer the deduction under current guidance and regulations.The permanence the bill creates has ripple effects beyond individual returns. Taxpayers and advisers gain planning certainty — expansion or contraction of businesses will be evaluated without a looming statutory expiration — but lawmakers and budget offices face a predictable, ongoing revenue impact.
States that tie their tax base to the federal definition of taxable income may see stable changes to their bases as well, while states that decouple will need to decide whether to conform to the federal change or preserve their own sunset rules.Finally, by only addressing the sunset mechanism, the bill leaves in place the complex mix of eligibility tests and phaseouts that already generate compliance and administrative issues. Making the deduction permanent likely shifts the debate from “will it be extended” to “should the structure, thresholds, or distributional effects be reformed,” because permanence hardens the policy into the baseline tax code rather than a temporary incentive.
The Five Things You Need to Know
The bill removes subsection (i) of Section 199A of the Internal Revenue Code — the clause that set an expiration date for the QBI deduction.
The amendment applies to taxable years beginning after December 31, 2025, so returns for 2026 and later are affected.
The bill does not change the substantive mechanics of Section 199A: the 20% calculation, SSTB phaseouts, and W‑2 wage/UBIA of property limitations remain unchanged.
Owners of pass‑through businesses (sole proprietors, partners, S‑corp shareholders) and eligible trusts/estates retain the deduction permanently under current rules.
The bill contains no language creating new reporting duties, revenue offsets, or adjustments to administrative enforcement — it only removes the sunset provision.
Section-by-Section Breakdown
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Short title
Designates the bill's public name as the 'Main Street Tax Certainty Act.' This is purely nominal but signals the sponsors' framing: the measure is presented as providing certainty for small‑business owners and other pass‑through taxpayers.
Make Section 199A permanent by striking the sunset clause
Amends Section 199A by striking subsection (i). Subsection (i) is the statutory mechanism that previously established an expiration date for the QBI deduction. Removing it eliminates the scheduled termination and leaves the remainder of Section 199A in force indefinitely. Practically, this is a surgical change: it does not recodify the text of 199A, it simply removes the clause that ended the provision.
Effective date
Specifies that the amendment applies to taxable years beginning after December 31, 2025. The effect is forward‑looking: tax years that start in 2026 and later are governed by the permanent status of Section 199A. The effective date preserves the existing legal framework for 2025 and earlier taxable years.
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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
- Sole proprietors and single‑member LLC owners — They keep access to the up to 20% QBI deduction without periodic legislative renewals, reducing planning uncertainty for future business decisions.
- Partners in partnerships and S‑corporation shareholders — The permanence removes the need to model scenarios around a potential sunset when evaluating distributions, entity choice, or compensation strategies.
- Tax advisers and accounting firms — Reduced year‑to‑year legislative churn lowers the frequency of reactive compliance guidance and client advisories, enabling longer‑term planning services.
- Trustees and beneficiaries of eligible trusts/estates — Where Section 199A applies, those parties retain the deduction under a stable legal regime, affecting estate tax planning and beneficiary distributions.
Who Bears the Cost
- Federal budget (taxpayers broadly) — Making a major individual tax preference permanent locks in ongoing revenue costs; general taxpayers ultimately bear the fiscal impact through budget tradeoffs or higher deficits unless offset elsewhere.
- State tax systems with automatic conformity to federal taxable income — States that conform to the federal base inherit the permanent deduction in their own bases, potentially reducing state revenues and forcing state lawmakers to decide whether to decouple.
- Future Congresses and taxwriters — Permanence constrains legislative options and makes it politically and procedurally harder to recalibrate or sunset the deduction in response to changing fiscal conditions.
- Tax enforcement and administration — While permanence reduces churn, the IRS must continue administering a complex set of eligibility tests (SSTB, wage/property limits) that generate audit and guidance demands; litigation risk over interpretations remains.
Key Issues
The Core Tension
The central dilemma is between providing stable tax rules to reduce business planning risk and the fiscal and distributional consequences of locking in a large individual tax preference: permanence aids economic certainty for pass‑through owners but fixes a policy that some view as favoring certain business forms and higher‑income filers, imposing an ongoing revenue cost that limits other budget priorities or requires offsetting revenue or cuts.
The bill is narrowly drafted and performs a single statutory surgery: it removes the sunset clause from Section 199A and leaves the rest of the provision untouched. That surgical clarity is also the source of open questions.
Most notably, permanence does not address substantive complexity — the SSTB definitions, phaseouts tied to taxable income, and W‑2/UBIA limits remain. Those rules are the primary drivers of compliance costs and planning disparities among taxpayers, and keeping them intact means the underlying distributional and administrative issues persist.
A second tension concerns fiscal transparency and offsetting policy. The bill contains no revenue offsets or direction for how to pay for the permanent exclusion.
That raises predictable budget questions: making a sizable individual deduction permanent changes multi‑year revenue baselines and affects budgetary scoring, but the bill offers no mechanism for addressing fiscal impacts. Finally, the interaction with state tax systems can be awkward: states that automatically conform to federal taxable income will inherit the permanent deduction without a state policy debate, shifting state fiscal burdens without state legislative action and potentially prompting a patchwork of state responses.
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