Your marginal tax rate isn't what you actually pay
Most Canadians know their marginal bracket — the headline number that comes up at dinner parties — and stop there. That rate only applies to your top dollar. Every dollar below the threshold is taxed at lower rates. The result: your effective (average) tax rate is meaningfully lower than your marginal, and the gap widens the higher you climb. Haven walks every slice of your income through federal and provincial brackets in parallel, so you see exactly how each dollar is taxed.
How federal + provincial brackets stack
Canada has two parallel progressive systems: the federal brackets (the same across the country) and a provincial set (different in every province). Crucially, federal and provincial bracket thresholds do not align. A given $5,000 slice of your income might be in the 20.5% federal bracket and the 9.15% Ontario bracket — combined 29.65%. A naive single-bracket lookup gets that combined rate wrong at every boundary mismatch. The bracket-by-bracket chart on this page walks the merged threshold list to show the real combined rate per slice.
CPP, QPP, EI, and QPIP
Income tax is only part of what comes off your paycheque. Three more deductions matter:
- CPP / QPP. The Canada Pension Plan deducts 5.95% on earnings between $3,500 and the YMPE ($73,200 in 2026), plus 4.0% on earnings between the YMPE and the YAMPE ($83,500). Quebec residents pay QPP instead, at the higher 6.40% base rate. Maximum employee CPP contribution in 2026: about $4,557.
- EI (Employment Insurance). 1.64% on earnings up to the maximum insurable earnings ($65,700 in 2026), or 1.31% in Quebec. Capped at about $1,077 in the rest of Canada.
- QPIP (Quebec only). Adds 0.494% up to a $98,000 ceiling for Quebec parental insurance.
- Self-employment. Self-employed Canadians pay both the employee and employer halves of CPP/QPP — effectively double the rate. EI does not apply by default.
Quebec is a different system
Quebec administers its own income tax separately from CRA. To compensate for the federal-jurisdiction programs Quebec runs itself, the federal government grants Quebec residents a 16.5% federal abatement: federal tax owing is reduced by 16.5% before being added to the combined total. Quebec residents also use QPP (not CPP), the Quebec EI rate (1.31% vs 1.64%), and pay QPIP for parental insurance. This calculator handles all four when you select Quebec.
RRSP contributions and your refund
An RRSP contribution reduces your taxable income dollar-for-dollar. The refund is approximately your contribution times your marginal tax rate. If you're in Ontario earning $90,000 — marginal rate about 29.65% — a $10,000 RRSP contribution returns roughly $2,965 at tax time. Note: the refund is a next-April cashflow event, not part of this year's take-home pay. Conflating the two double-counts the RRSP benefit when comparing scenarios with different contributions, which is why this calculator surfaces refund as a separate field below the take-home number.
What this calculator does NOT cover
- Registered Pension Plan (RPP) contributions — they reduce taxable income similarly to RRSPs but the math depends on your plan.
- Union dues, professional fees, charitable donations, medical expenses, tuition, disability tax credit, child-care expenses, or any other personal credits.
- Provincial health premiums (Ontario Health Premium, BC MSP).
- The federal Canada Workers Benefit (CWB) refundable credit for low-income earners.
- The 66.67% capital-gains inclusion rate above $250,000 — v1 uses a flat 50% inclusion rate.
For an exhaustive return, use certified tax software (TurboTax, Wealthsimple Tax, UFile) or a tax professional.
Frequently asked questions
What's the difference between marginal and average tax rate?
Your marginal rate is the tax on your next dollar of income — the bracket you're currently in (federal + provincial combined). Your average rate is your total tax divided by your gross income. The average is always lower than the marginal because Canada's tax system is progressive: your first dollars of income are taxed at low rates, only the dollars in the highest bracket pay the marginal rate. Use marginal for 'should I take this raise / RRSP contribution / side gig?' decisions. Use average to understand your overall tax burden.
Why does Quebec have a different federal tax rate?
Quebec administers its own income tax (separate from the rest of Canada) and provides certain federal-jurisdiction programs itself. To compensate, the federal government grants Quebec residents the Quebec Abatement: federal tax owing is reduced by 16.5%. So a Quebec resident's effective federal marginal rate is the standard rate × 0.835. This calculator applies the abatement automatically when you select Quebec.
How much will I get back from my RRSP contribution?
Your RRSP refund is approximately contribution × marginal tax rate. If you're in Ontario earning $90,000, your marginal rate is about 29.65% — so a $10,000 RRSP contribution returns roughly $2,965 at tax time. The exact amount depends on whether the contribution drops you into a lower bracket. The calculator shows your live RRSP refund estimate as you adjust the contribution input.
What's NOT included in this calculator?
This calculator covers federal income tax, provincial income tax, CPP/QPP, and EI — the four big-ticket source deductions. It does not include Registered Pension Plan contributions, union dues, charitable donations, medical expenses, tuition, child-care expenses, provincial health premiums, or the Canada Workers Benefit. For an exhaustive return, use certified tax software (TurboTax, Wealthsimple Tax, UFile) or a tax professional.