The Section 199A Qualified Business Income (QBI) Deduction allows eligible sole proprietors, freelancers, LLC owners, and S-Corporation shareholders to deduct up to 20% of their net qualified business income tax-free from federal income tax.
Originally enacted under the Tax Cuts and Jobs Act (TCJA), Section 199A remains one of the largest tax shelters for pass-through business entities in 2026. However, once your total taxable income crosses specific inflation-adjusted IRS thresholds, complex limitation formulas—including SSTB phase-outs and W-2 wage / UBIA property caps—come into effect.
Calculate Your Exact Section 199A Deduction
Model SSTB reductions, W-2 payroll limits, and the $400 statutory floor in real time.
📉 Launch 2026 QBI Calculator1. 2026 Inflation-Adjusted Thresholds
Under IRS Revenue Procedure 2025-32, the statutory taxable income phase-in thresholds for 2026 are:
| Filing Status | Lower Threshold (100% Safe Zone) | Phase-In Window | Upper Limit (Full Limitation) |
|---|---|---|---|
| Single / Head of Household | $201,750 | $75,000 range | $276,750 |
| Married Filing Jointly (MFJ) | $403,500 | $150,000 range | $553,500 |
| Married Filing Separately (MFS) | $201,775 | $75,000 range | $276,775 |
2. How the 3 Income Zones Work
Zone A: Below the Lower Threshold ($201,750 Single / $403,500 Joint)
Full 20% Deduction with Zero Limitations. Regardless of whether your business is an SSTB (doctor, lawyer, consultant) and regardless of whether you pay any W-2 wages, you receive the full 20% deduction on QBI, subject only to the 20% overall Taxable Income ceiling. File Form 8995 (Simplified Computation).
Zone B: In the Phase-In Range ($201,750 to $276,750 Single / $403,500 to $553,500 Joint)
Partial Wage & SSTB Reductions Apply. For Non-SSTB businesses, the W-2 wage limitation phases in proportionally. For SSTB businesses, the qualified business income itself and W-2 wages are scaled down by your phase-in percentage. File Form 8995-A.
Zone C: Above the Upper Limit (> $276,750 Single / > $553,500 Joint)
Full Limitations in Effect:
• SSTB Businesses: Deduction is $0 (100% phased out).
• Non-SSTB Businesses: Deduction is strictly capped at the Greater of (50% W-2 Wages) OR (25% W-2 Wages + 2.5% UBIA of Qualified Property).
3. The Wage and Property Limitation Test
For high earners in Non-SSTB industries (construction, software SaaS, e-commerce, real estate, retail), your deduction is limited to the greater of two numbers:
- 50% of W-2 wages paid by the business to employees (including officer W-2 salary in an S-Corp).
- 25% of W-2 wages plus 2.5% of the Unadjusted Basis Immediately After Acquisition (UBIA) of qualified depreciable property (heavy machinery, office buildings, rental properties).
4. The Overall Taxable Income Ceiling
Your total Section 199A deduction can never exceed 20% of your total Form 1040 Taxable Income minus net capital gains and qualified dividends. This ceiling ensures that QBI deductions cannot be used to shelter unrelated investment profits.
Frequently Asked Questions
For 2026 (IRS Rev. Proc. 2025-32), the lower threshold is $201,750 for Single, Head of Household, and Married Filing Separately ($403,500 for Married Filing Jointly). The phase-in range is $75,000 for Single filers (ending at $276,750) and $150,000 for Joint filers (ending at $553,500).
No. The Section 199A QBI deduction is an 'above-the-line / below-AGI' deduction that reduces your federal taxable income on Form 1040 Line 13. It does not reduce your net earnings from self-employment subject to the 15.3% SE tax on Schedule SE.
Under 2026 small business tax reform updates (OBBBA § 70105), eligible taxpayers with active qualified business net profits of $1,000 or more are guaranteed a minimum statutory floor deduction of $400, provided their overall taxable income limit allows it and the business is not a fully phased-out SSTB.