Free tools
Free GST/HST and invoice calculators
GST, HST, PST and QST for any province, sales tax taken out of a price, late interest as a yearly rate, due dates and hourly totals. Every result opens as a ready Canadian invoice, free and without sign-up.
Calculators
- GST/HST calculatorAdd GST, HST, PST or QST to a price for any province or territory, each tax on its own line. Free, instant, no sign-up, and it opens as an invoice.
- Reverse sales tax calculatorTake GST, HST, PST or QST out of a price that already includes it, for any Canadian province. Free and instant, with the price before tax and each tax.
- Late interest calculatorWork out interest on an overdue invoice at a monthly rate, with the yearly rate the Interest Act requires you to state. Free, no sign-up, opens as an invoice.
- Due date calculatorFind the due date of a Canadian invoice for Net 7, 15, 30 or 60 terms, or any number of days, and open it as an invoice with those terms. Free, no sign-up.
- Hourly rate calculatorMultiply hours by your rate and add GST or HST for your client’s province, then open it as a ready Canadian invoice. Free, instant and no sign-up.
Frequently asked questions
Are these calculators free?
Yes, all of them, with no sign-up. They run in your browser: nothing you enter is sent to us.
Can I turn a result into an invoice?
Yes. Each calculator has a button that opens our free Canadian invoice generator with the amount and province filled in. Add your GST/HST number and your client, and download the PDF.