GST/HST Calculator for Ontario
Calculate your tax obligations using CRA place-of-supply rules for goods, services, and digital products.
Ontario businesses collect HST at 13% on sales to Ontario customers. When selling to clients in other provinces, the place-of-supply rules determine which rate applies — and it's often the buyer's province that controls the rate, not yours. Ontario's large freelance and service economy means cross-provincial invoicing is common. Use this calculator to get the right rate before you invoice.
Interprovincial Tax Calculator
CRA Place-of-Supply Rules
📦 Goods taxed where delivered — buyer's province applies
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Enter an amount to see the tax breakdown
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