Tax refund estimator
The estimator starts with employment income, subtracts the entered RRSP deduction, applies year-specific federal and supported provincial or territorial brackets, then subtracts the basic personal and Canada employment credits. Eligible donation credits are applied through the shared donation engine. Ontario surtax and Health Premium, B.C.’s low-income tax reduction, Manitoba’s income-tested basic amount, and Yukon’s income-tested basic amount are included.
It compares estimated income tax with tax already deducted. Actual income tax deducted is required; withholding is never inferred from the tax model. It excludes CPP/QPP and EI/QPIP deductions and reconciliation. The estimator also does not model Quebec income tax, other income types, spouse or dependant claims, tuition, disability or medical credits, dividends, capital gains, self-employment, non-residency, or many province-specific credits and reductions.
RRSP tax savings
The income-tax engine runs before and after the proposed deduction. The difference is estimated tax savings, not a guaranteed refund increase. The tool does not calculate available contribution room and caps the modeled deduction at entered employment income.
Donation tax credit
The calculator first calculates the statutory federal and provincial or territorial non-refundable credit using the first-$200, above-$200, and supported highest-income tiers. The standalone tool does not estimate usable credit or after-credit cost because it does not know your tax payable. Net income sets the claim limit; taxable income sets the highest-rate eligibility. Ontario surtax effects and alternative minimum tax are excluded from the standalone credit. It assumes an eligible gift and official receipt and applies the general claim limit of 75% of entered net income. It does not optimize which year to claim, combine prior-year gifts, or model ecological, cultural, estate, or other special gifts. Eligible amounts not claimed may generally be carried forward for up to five years.
GST / HST
Add-tax mode applies the selected jurisdiction’s supported rate and rounds each displayed component to cents. Reverse mode divides the tax-included total by one plus the combined rate, so a cent-level difference can occur when reversing a rounded total. Results assume an ordinary fully taxable supply; exemptions, zero-rated supplies, rebates, place-of-supply rules, and special product taxes are outside scope.
Mortgage payments
The entered nominal annual rate is converted from Canadian semi-annual compounding to an equivalent payment-period rate. Level-payment formulas estimate the monthly payment. Standard schedules divide the annualized monthly payment by the payment frequency; accelerated schedules use one-half or one-quarter of the monthly payment. Results do not represent approval or affordability and exclude mortgage insurance, property tax, fees, renewals, and future rate changes.
Car loan payments
The calculator applies the entered APR over the selected payment frequency. Estimated sales tax is applied to vehicle price less trade-in, then the entered down payment is subtracted and financed fees are added. Actual dealer contracts can treat trade-ins, rebates, fees, used vehicles, taxes, and payment timing differently; lender disclosures govern. Only ordinary dealer purchases up to $100,000 (below $55,000 in BC) are supported; private sales and luxury-tax cases are excluded.
Tax years
2025 is presented as a tax-return year. 2026 is an estimate based on published rates, reviewed October 1, 2026. 2026 donation calculations are temporarily unavailable pending provincial and territorial source reconciliation; no 2025 rates are substituted. Filing forms and personal administrative outcomes may differ.
Official sources
Manitoba thresholds are frozen at $47,000 and $100,000 in both supported years. The provincial publication and CRA payroll tables take precedence over the conflicting indexed thresholds on CRA’s summary page.
Manitoba Finance — personal income taxes · FCAC — payment frequency conventions · ICBC — vehicle tax scope
Independence
Advertising, sponsorships, and Giving listings do not influence calculator inputs, formulas, outputs, or editorial conclusions.