HST Calculator Canada

Choose a participating province, then calculate HST and the total for a simple invoice line.

Enter a quantity and item price to see subtotal, taxes, and total.

HST calculator

Calculate HST by province

HST 13%
LineQtyItem priceSubtotalHSTTotalActions
1$10.00$1.30$11.30

How to calculate HST

For participating provinces, the pre-tax amount is calculated as quantity multiplied by item price. Taxes are then applied to the subtotal using the general rates shown.

  • Subtotal = quantity x item price
  • Taxes = subtotal x applicable rate
  • Total = subtotal + taxes

Create an invoice with sales tax

Move from a quick calculation to a PDF invoice that is ready to send.