Worked Calculations and Checklists
Marginal vs average tax rate in Canada: which one to use for each decision
The difference between your marginal and average tax rate, 2026 Ontario combined marginal rates by income, benefit clawbacks, and which rate to use for RRSPs, raises and gains.
Your average tax rate is total income tax divided by income; your marginal tax rate is the tax on your next dollar of income. They answer different questions. Use the marginal rate for decisions at the edge: an RRSP or FHSA deduction, a raise, overtime, a bonus, or the taxable half of a capital gain. Use the average rate to budget your overall take-home pay. An Ontario employee earning $75,000 in 2026 has an average income tax rate of about 16.94% but a marginal rate of 29.65% (20.5% federal + 9.15% Ontario).
This guide is part of the worked examples hub. Rates below are illustrative and for ordinary income (salary, pension, interest). It is general information, not tax advice.
The two rates side by side
| Average rate | Marginal rate | |
|---|---|---|
| Definition | Total income tax ÷ total income | Extra tax ÷ extra income |
| Example at $75,000 (Ontario, 2026) | $12,705 ÷ $75,000 ≈ 16.9% | 20.5% + 9.15% = 29.65% |
| Use it for | Budgeting, comparing overall burden | RRSP/FHSA deductions, raises, bonuses, side income, gains |
| Common mistake | Using it to value a deduction (understates the saving) | Applying it to all income (overstates the tax) |
The gap exists because the first dollars of income are taxed at lower rates or not at all (thanks to the basic personal amount). Moving into a higher bracket only affects the dollars above the threshold. You can never take home less by earning more salary because of brackets alone, although benefit clawbacks can make the effective rate very high in some ranges (see below).
Ontario combined marginal rates for 2026 (ordinary income)
| Taxable income (2026) | Federal | Ontario (incl. surtax where it applies) | Combined |
|---|---|---|---|
| about $20,000 to $53,891 | 14% | 5.05% | 19.05% |
| $53,891 to $58,523 | 14% | 9.15% | 23.15% |
| $58,523 to about $97,000 | 20.5% | 9.15% | 29.65% |
| about $97,000 to $107,785 | 20.5% | about 10.98% (first surtax) | about 31.48% |
| $117,045 to $150,000 | 26% | about 17.41% | about 43.41% |
| $150,000 to $181,440 | 26% | about 18.97% | about 44.97% |
| $181,440 to $220,000 | 29% | about 18.97% | about 47.97% |
| $220,000 to $258,482 | 29% | about 20.53% | about 49.53% |
| over $258,482 | 33% | about 20.53% | about 53.53% |
Notes: the surtax thresholds depend on your Ontario credits, so the point where the surtax starts (shown here as about $97,000 for an employee with the usual credits) varies. Between $107,785 and $117,045 the rate rises in two steps as both surtax tiers kick in. The federal basic personal amount clawback adds a little between $181,440 and $258,482, and Ontario Health Premium step zones add 25% briefly around $48,000, $72,000 and $200,000. Other provinces' rates are in the provincial brackets guide.
Capital gains and dividends have different marginal rates
- Capital gains: only half is taxable, so the marginal rate on a gain is half the ordinary rate: 14.83% at a 29.65% ordinary rate, about 26.77% at the 53.53% top rate. See capital gains 2026.
- Eligible dividends (from large Canadian public companies) are grossed up by 38% and earn a dividend tax credit; the marginal rate is lower than on salary and can be negative at low incomes.
- Interest and foreign income are taxed at the full ordinary rate, which is why they are the first candidates for registered accounts.
Effective marginal rates: when benefits are clawed back
Several benefits are reduced as family net income rises, which works like an extra tax:
| Benefit | Reduction (2026 and benefit year July 2026 to June 2027) | Effect |
|---|---|---|
| Canada Child Benefit, 2 children | 13.5% of adjusted family net income between $38,237 and $82,847; 5.7% above | An Ontario parent at $60,000 can face about 29.65% + 13.5% ≈ 43% |
| OAS recovery tax | 15% of net income above $95,323 | A retiree at $100,000 faces about 31.48% + 15% ≈ 46% on the next dollar |
| Age amount | Reduced by 15% of net income above $46,432 | Adds 15% × 14% ≈ 2.1 points federally |
| Canada Groceries and Essentials Benefit, Canada Workers Benefit | Income-tested phase-outs | Matters for lower incomes |
This is why a deduction such as an RRSP contribution can be worth more than the bracket rate suggests for parents and retirees: it lowers net income, which raises these benefits. The CCB guide shows the arithmetic.
Which rate to use for common decisions
- RRSP or FHSA deduction: your marginal rate now, including benefit clawbacks, compared with your expected marginal rate when you withdraw. Use the RRSP refund estimator.
- A raise or overtime: your marginal rate, plus CPP/EI if you are below their maximums (5.95% and 1.63%).
- Side business income: marginal rate plus both halves of CPP (11.9%) on net earnings.
- Pension splitting: compare the higher spouse's marginal rate with the lower spouse's on the amount moved; see pension income splitting.
- Budgeting a year's cash flow: average rate plus payroll contributions; see the take-home pay estimator.
Worked example: a deduction that crosses a bracket
An Ontario employee has taxable income of $60,000 and contributes $8,000 to an RRSP, bringing taxable income down to $52,000. The deduction crosses two thresholds, so it is split into three slices: $1,477 (from $60,000 down to $58,523) saves 29.65%, $4,632 (down to $53,891) saves 23.15%, and the last $1,891 (down to $52,000) saves 19.05%. Saving: $437.93 + $1,072.31 + $360.24 = $1,870.48, not $8,000 × 29.65% = $2,372. The Health Premium stays at $600 in this range. When a deduction crosses bands, split it.
Frequently asked questions
Where do I find my marginal rate?
Take your expected taxable income and look up the band for your province, adding federal and provincial rates. Tax software also shows the effect of an extra $100 of income or deduction if you test it.
Is it ever worth turning down a raise?
Not because of tax brackets. Only in narrow cases where a benefit with a sharp cliff is lost could the net effect be negative; most Canadian benefits phase out gradually.
Why do online tables show slightly different rates?
They may include or exclude surtaxes, health premiums, BPA clawbacks or low-income reductions, and some use the previous year's thresholds.
Does Quebec have higher marginal rates?
Quebec's provincial rates are higher, but federal tax is reduced by the 16.5% abatement. The combined top rate is reported at about 53.31% for 2026.
Official sources
- CRA: 2026 tax rates and brackets — federal and provincial bands
- CRA: 2026 indexation and benefit amounts — CCB thresholds, OAS recovery threshold, age amount
- Government of Ontario — Ontario surtax and Health Premium
- Revenu Québec — Quebec rates
