Glossary term

Qualified Business Income (QBI) Deduction

The QBI deduction is a federal income tax deduction that may allow eligible pass-through business owners to deduct part of qualified business income.

Updated

May 19, 2026

Read time

2 min read

What Is the Qualified Business Income (QBI) Deduction?

The qualified business income deduction, also called the Section 199A deduction, is a federal income tax deduction for certain owners of pass-through businesses. It may allow eligible taxpayers to deduct part of qualified business income from a sole proprietorship, partnership, S corporation, or certain trusts and estates.

The deduction is separate from ordinary business expense deductions. It is claimed on the owner's individual return or applicable taxpayer return after business income is calculated.

Key Takeaways

  • The QBI deduction may benefit eligible owners of pass-through businesses.
  • It generally applies to qualified business income, not wages earned as an employee.
  • Limitations can depend on taxable income, business type, wages, and qualified property.
  • Taxpayers commonly use Form 8995 or Form 8995-A to calculate the deduction.

How the QBI Deduction Works

QBI is generally the net amount of qualified items of income, gain, deduction, and loss from a qualified trade or business. If the taxpayer is eligible, the deduction is calculated under Section 199A rules and then reported on the tax return.

The rules become more complicated at higher taxable income levels. Limitations may involve W-2 wages paid by the business, the unadjusted basis of qualified property, and whether the business is a specified service trade or business.

Common Moving Parts

Item

Why It Matters

Qualified business income

Starting point for the deduction

Taxable income

Can trigger phase-ins and limits

Specified service trade or business

May limit or eliminate the deduction at higher income levels

W-2 wages and qualified property

Can affect deduction limits for some taxpayers

What the Deduction Is Not

The QBI deduction does not reduce self-employment tax. It is also not a business expense that changes net profit on Schedule C or the business's books. It is a tax deduction calculated after the business income flows to the taxpayer.

Eligibility can be fact-specific, especially for rental activities, service businesses, multiple businesses, and pass-through entities with complex allocations.

The Bottom Line

The QBI deduction can reduce taxable income for eligible pass-through business owners, but the calculation is layered. The practical work is identifying qualified business income, applying income-based limits, and using the correct IRS form.

Related Terms