A deduction is available to owners of pass-through businesses on a share of what the business earns, and it is one of the more valuable provisions available to a small business owner.
It is also one of the most conditional. What you can claim depends on what the business does, what it pays in wages, what property it holds, and where your income sits, and most of those facts are fixed once the year closes.
This covers who is eligible, the distinction between kinds of business that drives everything else, how the deduction is calculated, the limitations that apply above certain income levels, and where it is claimed.
What Is the QBI Deduction?
The Qualified Business Income (QBI) deduction, created by the Tax Cuts and Jobs Act of 2017 under Section 199A, allows eligible self-employed individuals and owners of pass-through businesses to deduct up to 20% of their qualified business income. It is an above-the-line deduction, you claim it even if you take the standard deduction.
This is one of the clearest cases where a conversation in the autumn is worth more than one in the spring. What is available can depend on wages paid and on how activities are organised, and once the year closes those facts are fixed and the calculation simply follows them.
Anu Gupta, CA, EA, B.Tech · LinkedInWho Is Eligible?
- Sole proprietors (Schedule C filers)
- Partners in a partnership
- S-corporation shareholders
- Beneficiaries of trusts and estates
- Rental real estate (if it rises to the level of a trade or business, IRS safe harbor: 250+ hours/year)
C-corporations are not eligible. W-2 wages from an employer are not eligible, only income from your own business.
Non-SSTB vs SSTB, The Critical Distinction
The QBI deduction works differently depending on whether your business is a Specified Service Trade or Business (SSTB).
| Business Type | QBI Deduction Rule |
|---|---|
| Non-SSTB (retail, manufacturing, real estate, restaurants, construction, tech products, etc.) | Full 20% deduction available at all income levels (subject to W-2 wage limit above threshold) |
| SSTB (law, accounting, consulting, financial services, health, athletics, performing arts, brokerage) | Deduction phases out between the income threshold and $50,000/$100,000 above it; fully eliminated above phase-out |
How the 20% Deduction Is Calculated
The deduction is the lesser of:
- 20% of QBI from each qualified trade or business, OR
- 20% of (taxable income minus net capital gains)
For taxpayers above the income threshold, an additional W-2 wage limitation applies (see below).
W-2 Wage Limitation (Above Threshold)
If your taxable income exceeds the threshold, the QBI deduction for each business is limited to the greater of:
- 50% of the W-2 wages paid by that business, OR
- 25% of W-2 wages PLUS 2.5% of the unadjusted basis (original cost) of qualified property placed in service
This means a sole proprietor with no employees and no significant depreciable assets may get zero QBI deduction once income exceeds the threshold, a major planning point. Operating as an S-corporation and paying a reasonable salary creates W-2 wages that unlock the deduction.
SSTB Phase-Out Mechanics
For SSTB owners, the deduction begins to phase out once taxable income exceeds the threshold and is fully eliminated $50,000 (single) or $100,000 (MFJ) above the threshold.
What Counts as Qualified Business Income?
QBI includes:
- Net profit from a trade or business
- Reasonable allocation from a partnership K-1
- S-corp shareholder's allocable share of income (but NOT W-2 salary paid to the shareholder)
QBI does NOT include:
- Capital gains and losses
- Dividends and interest income (unless from a financial business)
- Reasonable compensation paid by an S-corp to its owner
- Guaranteed payments from a partnership
- Income from outside the US
Aggregation Election
Taxpayers who own multiple businesses can elect to aggregate them for QBI purposes, combining W-2 wages and qualified property across businesses to maximize the deduction. The aggregation must be reported consistently year to year.
Where to Claim the QBI Deduction
Report on Form 8995 (simplified version) or Form 8995-A (detailed, for income above threshold or multiple businesses). The deduction flows to Schedule 1, Line 13 and ultimately reduces taxable income on Form 1040.
Practical Example
Maria is a freelance web developer (non-SSTB). 2025 taxable income: $140,000. QBI from Schedule C: $120,000. Deduction = 20% x $120,000 = $24,000. No W-2 wage limitation applies because she is below the $197,300 threshold. Her taxable income drops to $116,000.
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Frequently Asked Questions
Does the QBI deduction expire?
Section 199A is currently set to expire after tax year 2025 unless Congress extends it. Watch for legislative updates heading into 2026.
Can I take QBI and the standard deduction?
Yes. The QBI deduction is separate from itemized vs standard deduction. You subtract QBI deduction from taxable income regardless of which deduction you use.
Is rental income eligible for QBI?
Possibly. Rental real estate can qualify if it constitutes a trade or business. The IRS provides a safe harbor: 250 hours of rental services per year. Triple-net leases typically do not qualify.
Why does this need attention during the year rather than at the return?
Because the amount available can depend on facts you can still influence while the year is open, such as the level of wages paid and how activities are organised. Once the year has closed those facts are fixed and the calculation simply follows them. This is one of the clearer examples of a provision where a conversation in the autumn is worth more than one in the spring.
What records support the position taken?
A clear picture of each activity: what it does, what it earned, what wages it paid and what qualifying property it holds. Where more than one business is involved, the records need to support how they were treated relative to each other, because that treatment affects the result and can be difficult to change later. Keep the calculation itself with the return rather than only the final figure.
Written by
Anu Gupta, CA, EA, B.Tech
Anu works with US businesses on tax and entity questions at Profitjets, from choosing a structure to the filings that follow it. She writes about the decisions owners make once and then live with for years. Connect on LinkedIn
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