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hstcalculator
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Machine Learning Engineer
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HSTCalculator.onl is a fast, ad-free calculator for Canadian sales taxes. Enter an amount, pick your province or territory, and instantly add or remove HST/GST/PST to see tax, subtotal, and total. Supports Ontario, BC, Alberta, Quebec and more with up-to-date rates. Works on mobile and desktop—no sign-up, no clutter. Ideal for invoices, receipts, POS checks, freelancers, and small businesses. Copy results in one tap, and use reverse-tax mode to back out tax from tax-inclusive prices.