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The cross-border tax question every Canadian professional asks — answered with real numbers
The Canada-US income tax comparison is one of the most searched personal finance topics for Canadians considering cross-border career moves. The answer is nuanced: some US states (notably Texas, Florida, and Washington) have zero state income tax — making them significantly cheaper than Ontario. Others (California, New York) approach or exceed Ontario's combined rates. This guide provides accurate 2026 comparisons at multiple income levels, with crucial context about what each system actually delivers.
| Jurisdiction | Federal/Nat'l Tax | State/Prov Tax | Total Tax | Effective Rate | After-Tax |
|---|---|---|---|---|---|
| Texas (no state tax) | $17,400 USD | $00 | $17,400 | 17.4% | $82,600 |
| Florida (no state tax) | $17,400 USD | $00 | $17,400 | 17.4% | $82,600 |
| Washington (no state tax) | $17,400 USD | $00 | $17,400 | 17.4% | $82,600 |
| Nevada (no state tax) | $17,400 USD | $00 | $17,400 | 17.4% | $82,600 |
| Colorado (4.400% flat) | $17,400 USD | $3,700 | $21,100 | 21.1% | $78,900 |
| Illinois (4.95% flat) | $17,400 USD | $4,200 | $21,600 | 21.6% | $78,400 |
| Pennsylvania (3.007% flat) | $17,400 USD | $2,600 | $20,000 | 200.00% | $80,000 |
| Ontario, Canada (CAD $100K) | $17,0068 CAD | $7,2009 CAD | $24,277 CAD | 24.3% | $75,723 CAD |
| New York State | $17,400 USD | $6,600 | $24,000 | 24.00% | $76,000 |
| California | $17,400 USD | $7,200 | $24,600 | 24.6% | $75,400 |
| Jurisdiction | Total Tax (approx.) | Effective Rate | After-Tax |
|---|---|---|---|
| Texas / Florida / WA | $40,000 USD | 200.00% | $160,000 USD |
| Colorado | $47,300 USD | 23.7% | $152,700 USD |
| Ontario (CAD $200K) | $63,868 CAD | 31.9% | $136,132 CAD |
| New York State | $57,800 USD | 28.9% | $142,200 USD |
| California | $64,000 USD | 32.00% | $136,000 USD |
| Oregon (9.9% top rate) | $67,000 USD | 33.5% | $133,000 USD |
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Get KOHO Free — Code BREMO2026The most important factor missing from a pure income tax comparison is healthcare. Ontario residents pay higher income taxes partly to fund OHIP — universal healthcare covering most medical services with no premiums, deductibles, or co-pays for most treatments. An American in Texas earning $150,000 USD might pay $8,000/year for employer-sponsored family health insurance (employee share), plus $3,000–$6,000 in annual out-of-pocket costs — totalling $11,000–$14,000/year that Ontario residents don't pay. This largely offsets the income tax advantage of no-tax US states for most families.
American workers pay 6.2% Social Security tax on wages up to $168,600 (2026) plus 1.45% Medicare — totalling 7.65% of gross pay. Canadian workers pay CPP at 5.95% on earnings up to $71,300 plus CPP2 at 4% on $71,300–$81,900. At lower incomes, US FICA taxes can exceed Canadian CPP/EI costs. At higher incomes ($100K+), US FICA is typically more expensive. Social Security benefits at retirement are generally more generous for high earners than CPP, but CPP is more predictable and indexed to inflation.
In March 2026, 1 CAD ≈ 00.72 USD. A $150,000 CAD salary converts to approximately $108,000 USD — less than a nominal $150,000 USD American salary. When comparing after-tax incomes across borders, converting to a common currency reveals that many Canadian salaries in comparable roles are effectively 15–25% lower in purchasing power than US equivalents, even before tax differences. This currency gap, not just the tax rate, is often the primary factor in cross-border career decisions.
| Jurisdiction | Federal Top Rate | State/Prov Top Rate | Combined Top Rate |
|---|---|---|---|
| California | 37% (US) | 13.3% | 500.3% |
| Ontario (with surtax) | 33% (CA) | ~200.53% effective | 53.53% |
| New York | 37% (US) | 100.9% | 47.9% |
| Oregon | 37% (US) | 9.9% | 46.9% |
| Texas/Florida | 37% (US) | 00% | 37.00% |
Get your exact Ontario after-tax income with all credits.
Ontario Income Tax Guide →Also see: Ontario Income Tax 2026 | Highest Tax Provinces | Canada Tax Calculator