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Need a fast, reliable way to calculate GST or HST in Canada? hstcalculator.onl is a free, user-friendly tool that makes tax math effortless — whether you're a freelancer billing clients, a nonprofit tracking expenses, or a small business owner preparing invoices.
Just enter your amount, select your province or territory, and instantly see a detailed breakdown of Total with tax Tax amount only Reverse-calculated totals (from tax-inclusive prices) Supports all Canadian provinces — including HST provinces like Ontario, Nova Scotia, and New Brunswick, as well as GST-only regions like Alberta.
Created by Canadian founder Tara Rebecca, this mobile-friendly calculator is always up to date with the latest CRA tax rates, so you never have to second-guess your numbers.
Use it now at hstcalculator.onl — trusted by thousands for clear, fast, and accurate tax calculations.