Millions of sole proprietors, partners, and S corporation shareholders filing their 2025 tax returns can still claim a deduction worth up to 20 percent of their qualified business income. The provision, codified at Section 199A of the Internal Revenue Code, has not expired and remains on the books as of July 2026. But the income thresholds that determine how much of the deduction a filer actually keeps continue to force difficult planning decisions, especially for owners whose earnings land in the phase-in range where wage and property limits begin to bite.
Why the 20 percent QBI deduction still shapes pass-through tax planning
The core math is straightforward: eligible taxpayers can deduct up to 20 percent of qualified business income, plus 20 percent of qualified REIT dividends and qualified publicly traded partnership income. That benefit flows to owners of sole proprietorships, partnerships, S corporations, and certain trusts and estates. The deduction is taken on the individual return, not on the business itself, which means it directly reduces taxable income rather than operating costs.
The tension sits at the thresholds. Once a filer’s taxable income crosses the statutory limits, Section 199A begins phasing in restrictions tied to W‑2 wages paid by the business and the unadjusted basis immediately after acquisition of qualified property. Owners of specified service trades or businesses, such as law firms, medical practices, and consulting shops, face even steeper limits because their deduction can be partially or fully disallowed at higher income levels. The Congressional Research Service has documented how these layered restrictions create sharp incentive cliffs: filers just above the thresholds can lose a meaningful share of the deduction, while those just below keep the full 20 percent. That structure gives pass‑through owners a strong reason to manage reported income carefully, whether through retirement contributions, timing of expenses, or entity restructuring.
Because the deduction is calculated at the owner level, not the entity level, partners and S corporation shareholders must also consider how allocations, guaranteed payments, and reasonable compensation decisions affect their share of qualified business income and W‑2 wages. In closely held entities, those levers can make the difference between a fully available deduction and a sharply limited one.
Statute, final rules, and IRS forms that govern the deduction
The legal chain supporting the 20 percent deduction runs through multiple federal documents. The statute itself, enacted in 2017, remains current law. The Treasury Department issued final regulations describing which trades or businesses generate qualified business income, how to aggregate multiple activities, and how to apply the wage and property tests. The Government Accountability Office reviewed the implementing regulation as a major rule, confirming the scope and procedural compliance of the rulemaking and underscoring the deduction’s significance for the tax system.
For the 2025 tax year, the IRS provides two computation paths. Filers whose taxable income stays below the annual limits can use the simplified Form 8995, which applies a straight 20 percent factor to qualified business income subject to an overall cap based on taxable income. Those above the thresholds must turn to Form 8995‑A, which requires tracking W‑2 wages and depreciable property basis to calculate the allowed deduction and apply any phaseouts for specified service trades or businesses. Current IRS guidance emphasizes that many pass‑through owners may be eligible, but eligibility and the size of the benefit depend on income level, business type, and the wage and property figures the business generates.
The final regulations package, published in Internal Revenue Bulletin 2019‑09, set out the applicability rules and definitions that still govern how filers determine qualified business income, whether multiple trades or businesses can be aggregated, and how losses carry forward to offset future years’ income. Those rules interact directly with the annual instructions for the computation forms. The instructions for Form 8995 walk taxpayers through identifying each trade or business, separating specified service activities from non‑service activities, and applying the taxable income limits that may cap the deduction below a full 20 percent.
Planning around thresholds and phaseouts
Because the deduction is sensitive to taxable income, many owners focus first on managing that figure rather than gross receipts. Pre‑tax retirement contributions, health savings account funding, and the timing of major deductible expenses can all shift a taxpayer below a threshold where the wage and property limits fully apply. In some cases, electing out of bonus depreciation or spreading deductions over multiple years can smooth income and avoid spikes that would otherwise reduce the deduction.
Entity structure also plays a role. A sole proprietor with few or no employees may find that converting to an S corporation and paying themselves W‑2 wages improves their position once income rises into the phase‑in range. Conversely, owners in high‑income specified service fields may conclude that no amount of restructuring will preserve the deduction at their earnings level and instead prioritize other planning strategies, such as retirement plan design or charitable giving.
Ultimately, the 20 percent qualified business income deduction remains a central feature of the tax landscape for pass‑through entities. With the core statute still in effect and the regulatory framework established, the main challenge for owners is not whether the deduction exists, but how to align their income, wages, and investment decisions so they can keep as much of it as the law allows.
David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
