GlenCalc

GST/HST calculator

Ontario and the Atlantic provinces charge a single harmonized sales tax (HST). Other provinces charge 5% GST plus their own sales tax (PST, RST or QST), or GST alone.

Your answer

Total with tax$113.00
Sales tax$13.00
Price before tax$100.00
HST (13%)$13.00

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How we worked it out

Updated as you change the numbers.

  1. Ontario: HST 13% = 13% in total.
  2. Tax = $100.00 × 13%.

Method and assumptions

Rates from the CRA’s GST/HST table, including Nova Scotia’s 14% HST from 1 April 2025. Provincial sales tax rules (what is exempt) vary by province.

Questions

How much is 13% HST on $100?

$13, for $113 in total, in Ontario.

Sources

Method and figures checked on November 2, 2026. Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

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