Calculate how much tax you owe on rental income. Estimate taxable income after mortgage interest, depreciation, repairs, and other deductible expenses.
What Is the QBI Deduction?
The Qualified Business Income (QBI) deduction — also called the Section 199A deduction or the 20% pass-through deduction — was introduced by the Tax Cuts and Jobs Act of 2017. It lets owners of pass-through businesses deduct up to 20% of their qualified business income on their personal tax return, effectively lowering the top rate on business income from 37% to 29.6%.
You can claim it if you earn business income from a sole proprietorship (Schedule C), a single-member LLC, a partnership, or an S-corporation — the income flows through to your personal return. REIT dividends and publicly traded partnership (PTP) income also qualify under separate rules. W-2 employee wages, capital gains, and guaranteed payments do not count as QBI.
✅ Did You Know? The QBI deduction is an above-the-line deduction — it reduces your taxable income even if you take the standard deduction. It does not reduce your self-employment tax or payroll tax base.
The W-2 Wage and Property Limits
If your taxable income is above the 2025 threshold ($197,300 single / $394,600 married filing jointly), your deduction is capped by a W-2 wage / UBIA test. The limit is the greater of two amounts:
Greater of: 50% × W-2 Wages | 25% × W-2 Wages + 2.5% × UBIA
The first option rewards businesses that hire employees — the more W-2 wages you pay, the larger your potential deduction. The second option adds a property component: 2.5% of the unadjusted basis of your qualified depreciable property (UBIA). A business with employees or significant equipment can keep a much larger share of its 20% deduction than one without.
Businesses below the income threshold skip this test entirely — the deduction is simply 20% of QBI, capped at 20% of taxable income. This is why business owners with employees often see bigger deductions at higher income levels, and why the calculator always shows both wage limits side by side.
SSTB Phase-Out Explained
A Specified Service Trade or Business (SSTB) is a service business in fields such as law, accounting, actuarial science, health, consulting, brokerage services, financial services, investing and investment management, athletics, and performing arts — plus any trade where the principal asset is the reputation or skill of its owners or employees.
For SSTBs, the deduction is phased out ratably once taxable income crosses the 2025 threshold. Between $197,300 and $247,300 (single, MFS, or head of household) or $394,600 and $494,600 (married filing jointly), the deduction shrinks proportionally — and disappears entirely at or above the top of the range. If your taxable income is below the threshold, an SSTB gets the full deduction with no phase-out.
| Filing Status |
Phase-Out Start (2025) |
Phase-Out End (2025) |
| Single / MFS / Head of Household |
$197,300 |
$247,300 |
| Married Filing Jointly |
$394,600 |
$494,600 |
Many common businesses — restaurants, retail, manufacturing, construction, and other non-service trades — are not SSTBs and are never subject to this phase-out.
Frequently Asked Questions (FAQ)
What is the QBI deduction for 2025?
The QBI deduction (Section 199A) allows owners of pass-through businesses to deduct up to 20% of their qualified business income. For 2025 it is subject to the W-2 wage / UBIA limits and the SSTB phase-out once taxable income exceeds $197,300 (single) or $394,600 (married filing jointly). The deduction is available regardless of whether you itemize.
Do I qualify if I am a freelancer or independent contractor?
Yes. If you report net profit on Schedule C, you are a sole proprietor with qualified business income, and you can claim the 199A deduction on that profit. W-2 wages from a separate job do not qualify, but they do count toward your total taxable income for the income limit and phase-out calculations.
What is an SSTB?
An SSTB (Specified Service Trade or Business) includes law, accounting, health, consulting, financial services, brokerage, investing, athletics, and performing arts — and any business where reputation or skill is the principal asset. SSTB income is subject to a ratable phase-out between $197,300–$247,300 (single, MFS, HOH) and $394,600–$494,600 (married filing jointly) for 2025.
How do W-2 wages affect my deduction?
Above the income threshold, your deduction is capped at the greater of 50% of W-2 wages or 25% of W-2 wages plus 2.5% of UBIA. Paying employees (and holding depreciable business property) raises this cap, so businesses with staff can keep a larger share of the 20% deduction than solo operations with no employees.
Can I take the QBI deduction with the standard deduction?
Yes. The QBI deduction is an above-the-line deduction (an adjustment to income), so it reduces your taxable income even if you do not itemize. You can claim both the standard deduction and the full 199A deduction in the same year.
What happens at the phase-out income level?
For an SSTB, if your taxable income is below the threshold, you get the full deduction. Inside the phase-out range, the deduction is reduced ratably — for example, at $220,000 (single) the phase-out fraction is 0.546, so you keep 54.6% of the tentative deduction. At or above the top of the range, the SSTB deduction is zero.
⚠️ Important Disclaimer: The QBI deduction is complex, and this calculator provides an estimate only. Rental real estate QBI, REIT dividends, and publicly traded partnership (PTP) income are subject to special rules, and the deduction is non-refundable — it cannot create or increase a loss. Your actual deduction depends on your complete tax situation. Please consult a qualified tax professional before filing. This tool is for educational purposes and does not constitute tax advice.