The 20% QBI Deduction: How to Qualify and Maximize It

One of the Largest Tax Breaks for Business Owners

The Qualified Business Income (QBI) deduction, created by the Tax Cuts and Jobs Act and codified at IRC §199A, allows eligible taxpayers to deduct up to 20% of qualified business income from a pass-through entity. For a business owner in the 37% bracket with $200,000 of QBI, that's a $40,000 deduction — $14,800 in cash.

2026 TCJA status: The TCJA cliff applies — §199A expired December 31, 2025 under current law. The One Big Beautiful Bill Act (pending as of May 2026) proposes making it permanent. Check with your tax professional for the current legislative status. If the deduction is extended, the strategies below remain relevant.

Who Qualifies (and Who Doesn't)

Any individual with income from a pass-through entity can potentially claim the QBI deduction: sole proprietors, S-Corp shareholders, partners, and single-member LLC owners.

Specified Service Trades or Businesses (SSTBs) — including health, law, accounting, consulting, financial services, and certain others — phase out at higher income levels. The phase-out begins at $191,950 (single) or $383,900 (MFJ) in 2024 and is complete $50,000 (single) or $100,000 (MFJ) above those thresholds.

The W-2 Wage Limitation

For taxpayers above the threshold, the QBI deduction is the lesser of:

• 20% of qualified business income, OR
• The greater of: (a) 50% of W-2 wages paid, or (b) 25% of W-2 wages + 2.5% of unadjusted basis of qualified property

Maximizing QBI with Business Structure

Several structuring strategies increase QBI deduction value:

1. Aggregate qualifying businesses: Under Treas. Reg. §1.199A-4, multiple qualifying businesses can be aggregated to combine W-2 wages and property basis for the limitation calculation.
2. Increase W-2 wages: Converting independent contractors to employees increases W-2 wages, raising the QBI deduction ceiling.
3. Invest in qualified property: Real property, equipment, and other qualifying assets add to the 2.5% property component of the wage limitation.
4. Reduce total taxable income: Contributions to Solo 401(k), SEP-IRA, or HSA reduce your total taxable income, potentially keeping you below the SSTB phase-out threshold.