/
Canadian sales tax calculator — instant by province
Direct answer
Use this GST/HST calculator to add Canadian sales tax to a pre-tax amount or remove tax from a tax-included total by province. It is a retail/planning calculator, not a taxability ruling, filing calculation or substitute for CRA, Revenu Quebec or provincial guidance.
Direct answer: to add Canadian sales tax, multiply the pre-tax amount by one plus the combined province rate. To remove tax from a total, divide by one plus the combined rate. The calculator applies GST, HST, PST, RST or QST based on the province selected.
Use it for receipts, invoices, price comparisons and quick business estimates. It covers general province-level rates; product-specific exemptions, zero-rated supplies and place-of-supply rules may need CRA or provincial guidance.
Methodology: rates come from the shared usecos province tax table and are verified against CRA GST/HST guidance and Revenu Quebec QST guidance. HST provinces show the combined harmonized rate; GST/PST/QST provinces show federal and provincial components separately.
Limitations: this calculator does not determine whether a specific supply is taxable, zero-rated or exempt, and it does not calculate GST/HST input tax credits or business filing obligations.
Taxable, zero-rated and exempt treatment depends on the product or service. Confirm business filing decisions with CRA, Revenu Quebec or a tax professional.
Rates, worked examples and a full GST/PST/HST breakdown for each province and territory.
Calculations, interest rates, and tax threshold benchmarks displayed across UseCOS tools are updated as of August 2026 based on official publications from the Bank of Canada, Canada Revenue Agency (CRA), OSFI, and provincial regulatory bodies.
UseCOS provides transparent educational estimates and math comparisons for personal planning. Tools do not guarantee lender approval, tax compliance, or specific mortgage terms.
For binding mortgage rate commitments, loan contracts, or official tax filings, please consult a licensed Canadian mortgage broker, CPA, or official lender representative.
Was this tool helpful?