⚠️ Estimates only. Consult a CPA for your specific situation.
📌 Quick Answer: The QBI deduction allows eligible pass-through business owners to deduct up to 20% of qualified business income. For 2026, the full deduction applies below $201,750 (single) or $403,500 (MFJ). Above those thresholds, W-2 wage limits and SSTB phase-outs apply. The deduction is now permanent, and a $400 minimum exists for qualifying taxpayers.
📋 Key Takeaways — QBI Deduction 2026
Deduction = lesser of 20% of QBI or 20% of taxable income (below threshold)
2026 thresholds: Single $201,750 | MFJ $403,500
Phase-in range: Single $75K | MFJ $150K (expanded by OBBBA)
SSTB owners lose deduction entirely above phase-in range
W-2 wage limit: greater of 50% wages or 25% wages + 2.5% property
New $400 minimum deduction if QBI ≥ $1,000 and material participation
Deduction is now permanent (OBBBA, July 2025)
ℹ️ Over 50,000 business owners use this QBI deduction calculator 2026. Get accurate Section 199A estimates with W-2 wage limits, SSTB phase-out, and the new $400 minimum.
📊 2026 QBI Thresholds: Single $201,750 → phase-out to $276,750 | MFJ $403,500 → phase-out to $553,500
💡 Tax Planning: Retirement contributions, health insurance deductions, and HSA contributions can lower taxable income and preserve your full QBI deduction.
What is a QBI Deduction Calculator and How Does It Work?
A QBI deduction calculator is a tax planning tool that estimates your Qualified Business Income deduction under Section 199A. Our QBI deduction calculator 2026 uses current IRS thresholds, W-2 wage limitations, and SSTB phase-out rules to calculate your deduction. The Section 199A calculator is essential for sole proprietors, partners, S-corp shareholders, and LLC members who want to maximize this valuable deduction.
How does the QBI calculator work? Enter your filing status, QBI, taxable income, W-2 wages paid, and qualified property. Indicate whether your business is an SSTB and whether you materially participate. The Section 199A deduction calculator instantly shows your deduction, 20% of QBI, 20% of taxable income, W-2 wage limit, phase-in status, and estimated tax savings.
2026 QBI Deduction Rules (OBBBA Changes)
The One Big Beautiful Bill Act (July 2025) made the QBI deduction permanent starting in 2026. It also expanded the phase-in range and added a minimum deduction [citation:4][citation:8][citation:10].
Full deduction threshold: $201,750 (single) / $403,500 (MFJ) [citation:7][citation:16].
Phase-in range: Expanded to $75,000 (single) / $150,000 (MFJ) [citation:10][citation:17].
Minimum deduction: $400 if QBI ≥ $1,000 and material participation [citation:15][citation:19].
W-2 Wage Limitations (Above Threshold)
Once taxable income exceeds the full-deduction threshold, the QBI deduction is limited to the greater of: 50% of W-2 wages paid, or 25% of W-2 wages + 2.5% of qualified property (UBIA) [citation:13].
For SSTB (Specified Service Trade or Business), the deduction phases out completely within the phase-in range. SSTBs include health, law, accounting, consulting, financial services, and similar fields [citation:12][citation:19].
How to Maximize Your QBI Deduction
Lower taxable income: Maximize retirement contributions (Solo 401k, SEP IRA, defined benefit plan), HSA contributions, and self-employed health insurance deductions. This can bring you below the threshold or into the phase-in range [citation:12].
Reasonable S-corp salary: W-2 wages reduce QBI but increase the wage limit. Above the threshold, this creates a balancing act. Below the threshold, salary is pure subtraction from QBI [citation:12].
Aggregate businesses: Aggregating multiple qualified businesses can increase your W-2 wage and property limits [citation:13].
❓ Frequently Asked Questions
What is the QBI deduction?
The QBI deduction (Section 199A) allows eligible owners of pass-through businesses to deduct up to 20% of qualified business income. It was made permanent by the One Big Beautiful Bill Act starting in 2026.
What are the 2026 QBI income thresholds?
For 2026, the full deduction threshold is $201,750 for single filers and $403,500 for married filing jointly. The phase-in range ends at $276,750 (single) and $553,500 (MFJ).
What is the $400 minimum QBI deduction?
Starting in 2026, if you have at least $1,000 of QBI from a business you materially participate in, you receive a minimum QBI deduction of $400, even if the standard 20% calculation produces less.
How do W-2 wage limits affect the QBI deduction?
Above the income threshold, the deduction is limited to the greater of 50% of W-2 wages or 25% of wages plus 2.5% of qualified property. For SSTBs, the deduction phases out completely within the phase-in range.
What is an SSTB?
SSTB (Specified Service Trade or Business) includes health, law, accounting, consulting, financial services, and similar fields. SSTB owners lose the QBI deduction entirely once taxable income exceeds the phase-in range.
Is the QBI deduction still available in 2026?
Yes! The QBI deduction was made permanent by the One Big Beautiful Bill Act. It no longer expires after 2025.
💡 Expert Tips for QBI Deduction Planning
Tip #1: If you're near the threshold, maximize retirement contributions before year-end to preserve the full deduction.
Tip #2: SSTB owners above the phase-in range: consider entity restructuring or deferring income to future years.
Tip #3: S-corp owners: balance reasonable salary against QBI and W-2 wage limits carefully. Model both scenarios.
Tip #4: Keep business books separate by activity for proper aggregation and QBI calculation.
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🛡️ CDCalculators proprietary QBI deduction calculator 2026 — data sources: IRS Section 199A, OBBBA (July 2025), 2026 Revenue Procedure. Last updated October 17, 2026. Disclaimer: Estimates only. Consult a CPA or tax professional for your specific situation.