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The QBI deduction is a United States tax break, not a Canadian one. It lets certain US taxpayers deduct up to 20 percent of their qualified business income. We’ve assumed that’s the QBI you mean. If you file only in Canada, there’s nothing to claim under that name.
What is the QBI deduction?
The Internal Revenue Service describes it as a deduction of up to 20 percent of qualified business income, plus 20 percent of certain real estate investment trust dividends and publicly traded partnership income. It applies to tax years beginning after December 31, 2017.
It goes to owners of pass-through businesses, meaning sole proprietorships, partnerships, S corporations and certain trusts and estates. Income of a C corporation doesn’t qualify, and neither does wage income from a job. Forms 8995 and 8995-A do the math on a US return.
Who can use the QBI deduction?
| Income type | Counts for QBI? |
|---|---|
| Sole proprietor business profit | Yes, subject to limits |
| Partnership or S corporation share | Yes, subject to limits |
| C corporation income | No |
| Wages from an employer | No |
| Capital gains and investment items | No |
The deduction has a cap tied to taxable income, and higher earners face extra tests we haven’t covered. Read the IRS page or ask a US-licensed preparer for your own case.
Does Canada have anything like it?
Not by that name, and not as a straight 20 percent deduction that we found. A Canadian sole proprietor reports business income on form T2125, deducts allowable expenses, and pays tax on what’s left at ordinary rates, plus CPP on both halves. On $80,000 of net income in Ontario, our self-employed tax calculator shows about $22,126 of income tax and CPP together, or 27.7% of the income.
The nearest Canadian relief works through a corporation. A Canadian-controlled private corporation pays a lower federal rate of 9% on the first $500,000 of active business income, against 15% for the general rate. That’s a corporate rate, though, and it comes with rules on who qualifies. Try the corporate tax calculator to see the figures. The Ontario small-business rate it uses for 2026 is a blend we derived, not a published one.
What if you have US business income and live in Canada?
Then the first question isn’t the deduction. It’s if you file a US return at all, and that depends on your situation and any treaty. We couldn’t settle that from official pages, so we won’t guess. The IRS and the CRA each have contact routes for cross-border questions.
Here’s one thing that carries over. Whatever the country, the deduction only shrinks a number you already have, so you need clean books first. Our guide to business bookkeeping covers the records the CRA expects, and the business write offs guide covers what reduces your profit in Canada.
A quick worked comparison
Say a US taxpayer has $10,000 of qualified business income and no limits apply. Twenty percent is $2,000 taken off taxable income. That isn’t $2,000 of tax saved, only $2,000 less income to tax, so the saving is that amount times the person’s tax rate.
Canadian write offs work the same way. In our Ontario example, moving net income from $80,000 to $70,000 cuts income tax plus CPP from about $22,126 to about $18,298. The difference is $3,828 on a $10,000 reduction. You can test other numbers in the income tax calculator.
What we couldn’t confirm
We didn’t verify the dollar thresholds, the wage and property limits, or how the rules changed for tax years after 2025. The IRS page says a minimum deduction applies for later years, and we haven’t checked the amount.
Where the numbers come from
The QBI description comes from the Internal Revenue Service’s overview of the deduction. Canadian figures come from the Canada Revenue Agency and our own calculators, using 2026 federal and Ontario rates.
Frequently asked questions
What does QBI stand for?
Qualified business income, a term from US tax law. We assumed this is the meaning you want.
Is there a QBI deduction in Canada?
Not by that name. Canadian sole proprietors deduct allowable expenses on form T2125 instead.
Does wage income qualify?
No. The IRS says wages and C corporation income don't count.
Is it a 20 percent tax cut?
No. It is up to 20 percent off taxable income, so the tax saved is that amount times your rate.
Where do I find the exact limits?
On the IRS page for the deduction, which also lists forms 8995 and 8995-A.
- How Canadian income tax works: brackets and credits
How federal and provincial Canadian income tax stack up, what marginal and average rates mean, and how credits and deductions change your bill
Information only. This page is general information, not tax, legal or accounting advice. Tax-Services.ca is an independent publisher: we don't prepare or file tax returns or offer tax services, and we have no connection with the CRA, Revenu Québec, any government or any company named on this page. Check the figures that matter with an official source or a qualified professional.