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Qualified Business Income Deduction

Explains the Section 199A QBI deduction rules, income thresholds, W-2 wage limits, and SSTB restrictions for pass-through business owners.

TL;DR

  1. 01Deduct up to 20% of qualified business income below the threshold.
  2. 02High earners face W-2 wage and property basis limits.
  3. 03SSTBs face full phase-out above income thresholds regardless of wages.
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Tips

  1. 01If your income nears the phase-out threshold, run projections in the fall to see whether a retirement contribution moves you into the full-deduction zone.
  2. 02Increase W-2 wages paid through an S corporation election, since higher wages raise the 50%-of-wages limitation for businesses above the threshold.

Warnings

  1. 01The IRS applies a broad definition of specified service trades, so consulting and financial firms often qualify even when the owner does not expect it.
  2. 02The QBI deduction cannot exceed 20 percent of taxable income minus net capital gains, so high capital gains can shrink the allowable deduction.

What Is the QBI Deduction

The Qualified Business Income (QBI) deduction, established under Section 199A of the tax code, allows eligible pass-through business owners to deduct up to 20% of their qualified business income from taxable income.

  • Applies to sole proprietorships, partnerships, S corporations, and some trusts and estates.
  • Income earned through a C corporation or as a W-2 employee does not qualify.
  • The deduction reduces taxable income but does not reduce self-employment tax or adjusted gross income.
  • Qualified business income means the net amount of income, gain, deduction, and loss from a qualified domestic trade or business. It excludes capital gains, dividends, and interest income.
  • A separate REIT/PTP component allows a 20% deduction on qualified REIT dividends and publicly traded partnership income.

Income Thresholds and Phase-Outs

The deduction is straightforward below certain income levels but becomes more complex as income rises.

Filing Status Full Deduction (Below) Phase-Out Range Deduction Eliminated (Above, SSTB)
Single $201,750 $201,750–$276,750 $276,750
Married Filing Jointly $403,500 $403,500–$553,500 $553,500
  • Below the threshold: claim up to 20% of QBI with no additional limitations.
  • Within the phase-out range: W-2 wage and qualified property limits apply and phase in gradually.
  • Above the upper threshold: no QBI deduction is available for Specified Service Trades or Businesses (SSTBs).
  • For non-SSTB businesses above the upper threshold, the deduction is limited to the greater of:
    • 50% of W-2 wages paid by the business, OR
    • 25% of W-2 wages plus 2.5% of the unadjusted basis of qualified property.
  • New for 2026: taxpayers with at least $1,000 of total QBI from an active qualified trade or business may claim a minimum QBI deduction of $400, regardless of the regular calculation.

Specified Service Trades and Businesses

SSTBs face additional restrictions because the deduction phases out entirely for high-income SSTB owners.

SSTBs include businesses in these fields:

  • Health, law, accounting, actuarial science, consulting, financial services, and brokerage services
  • Performing arts, athletics, and investing or investment management
  • Any trade where the principal asset is the reputation or skill of one or more of its employees or owners

Engineering and architecture are not SSTBs and may qualify for the full deduction even above the income thresholds (subject to W-2/property limits).

  • If your SSTB taxable income falls below $201,750 (single) or $403,500 (MFJ), you can still claim the full 20% QBI deduction.
  • Within the phase-out range, the deduction is partially available on a pro-rated basis.
  • Above the upper limit, SSTB owners receive no QBI deduction.

Strategies to Maximize the Deduction

  • Manage taxable income below the threshold: maximize deductible retirement contributions (401(k) up to $24,500; IRA up to $7,500) to reduce taxable income into the full-deduction zone.
  • Increase W-2 wages: for businesses above the threshold, paying higher W-2 wages to employees — or to yourself via an S corporation — can increase the 50%-of-wages limitation.
  • Hold qualified property: placing real property or equipment in the business increases the 2.5% property basis component of the wage-and-property limit.
  • Separate SSTBs from non-SSTBs: if you run both a consulting firm (SSTB) and a rental business (non-SSTB), keeping them separate may preserve the deduction for the non-SSTB portion.
  • Consider S corporation election: converting a sole proprietorship to an S corp allows the owner to split income between W-2 salary and distributions, potentially increasing W-2 wages for the limit calculation.
  • Use IRS Form 8995 (simpler version) or Form 8995-A (complex situations) to calculate the deduction.

Common Pitfalls to Avoid

  • Misclassifying your business as non-SSTB: the IRS applies a broad definition of SSTBs. Consulting and financial services businesses often qualify even if the owner does not expect it.
  • Ignoring the overall taxable income limitation: the QBI deduction cannot exceed 20% of taxable income minus net capital gains. High capital gains can reduce the allowable deduction.
  • Failing to account for losses: if QBI from one business is negative, it reduces the total QBI across all businesses and may carry forward to reduce next year's deduction.
  • Overlooking qualified REIT dividends: ordinary REIT dividends paid by publicly traded REITs generally qualify for the 20% deduction and do not require W-2 wages or property basis.
  • Not tracking unadjusted basis of qualified property (UBIA): you must use the original cost of depreciable property placed in service during the last 10 years, not the depreciated value.

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