QBI deduction for freelancers: the 20% pass-through break explained
The QBI deduction lets most freelancers deduct 20% of their business profit from taxable income. It is one of the biggest breaks for the self-employed — and it has a threshold trap that catches high earners.
The 20% break most freelancers never claim
The Qualified Business Income deduction — Section 199A, often just called QBI — lets most freelancers and sole proprietors deduct 20% of their business profit from federal taxable income. Not from the tax bill, from the income before tax is computed. It is one of the largest deductions available to people who work for themselves, and a surprising number of new freelancers file without it because they have never heard of it.
If your net profit is $80,000 and you are under the income threshold, you deduct $16,000 before tax — worth roughly $3,500 at a 22% bracket. The QBI calculator works out your exact figure.
The threshold that changes everything
The full 20% is available only when total taxable income is below a threshold (for the 2025 tax year, $197,300 single / $394,600 married filing jointly). Most solo freelancers sit well under it, so they get the whole deduction with no complications.
Above the threshold, the deduction is limited by the W-2 wages and qualified property in the business. A solo freelancer with no employees pays themselves no W-2 wages — and that is the trap. With zero wages in the business, the limit collapses toward zero, and a high earner can lose most or all of the deduction. Push your income above the threshold in the calculator with W-2 wages at zero and watch the deduction shrink.
Why it phases in, not snaps off
The threshold is not a cliff. Across a phase-in range ($50,000 above threshold single, $100,000 married), the wage/property limit is gradually applied. Cross a little and you lose a little; cross a lot and you lose almost all of the deduction unless you have wages or property to anchor it. The calculator interpolates across that range so the number moves smoothly rather than jumping.
What counts as QBI
Qualified business income is your net profit from a domestic pass-through business — sole proprietorship, partnership, S-corp, or LLC — excluding investment income and certain specified service income above the threshold. It is computed on the profit after your ordinary business expenses have already reduced it, so the write-offs and the QBI deduction stack: expenses shrink the profit, then 20% of what remains comes off your taxable income.
The expiration everyone forgets
The QBI deduction was created by the 2017 tax law and is currently scheduled to expire after the 2025 tax year unless Congress extends it. Whether it exists in a given year, and at what thresholds, is a moving target — treat the figures here as a snapshot, verify them at irs.gov for the year you file, and do not bake the deduction into a multi-year plan you cannot change.
Frequently asked questions
What is the qualified business income deduction?
A federal deduction (Section 199A) letting most pass-through business owners — sole proprietors, partnerships, S-corps, LLCs — deduct 20% of their qualified business income from taxable income. It is taken after ordinary expenses, so it stacks with your other write-offs. For 2025 it is available below $197,300 single / $394,600 married.
Why do high-earning solo freelancers lose the QBI deduction?
Above the income threshold, the deduction is limited by 50% of the W-2 wages paid by the business (or 25% of wages plus 2.5% of property). A solo freelancer with no employees pays no W-2 wages, so that limit collapses toward zero and the deduction largely disappears. This is the biggest surprise in the calculation.
Does QBI reduce my tax or my income?
It reduces taxable income, not the rate. You deduct 20% of QBI before computing tax, so the cash value is 20% of QBI times your marginal rate. On $80,000 of QBI at a 22% bracket, the deduction is worth about $3,500.
Is the QBI deduction permanent?
No. It was created by the 2017 tax law and is currently scheduled to expire after the 2025 tax year unless extended. Verify the current year and thresholds at irs.gov before relying on it for planning.
Do my ordinary write-offs affect QBI?
Yes, they feed into it. Your ordinary expenses (home office, mileage, software) reduce your net profit first, and QBI is 20% of the remaining profit. So write-offs and the QBI deduction work together.