Ontario Sales Tax Calculator
Free • 13% HST • updated October 2026
Calculate sales tax in Ontario (13% HST). Add or reverse the tax on any amount, then create an invoice in seconds with FacilInvoice.
Ontario Sales Tax Calculator
Free to use, no signup. Turn the result into an invoice ›
Sales tax in Ontario
The current sales tax in Ontario is 13% HST. Enter any amount above to add the tax, or switch to reverse mode to work back from a total that already includes it. For the full cross-Canada tool use the Canadian sales tax calculator, and see GST and HST on invoices for how to show it correctly.
Frequently asked questions
What is the sales tax rate in Ontario?
The sales tax in Ontario is 13% HST. Enter an amount above to see the tax and the total.
How do I calculate sales tax in Ontario?
Enter the amount and the calculator applies the Ontario rate, then shows the tax and total. Switch to reverse mode to find the pre-tax price.
Is this calculator free?
Yes. It is free with no signup. Create a FacilInvoice account only to send and track invoices.