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GST / QST / HST Calculator
Live tax calculation — add or extract taxes from any amount. All provinces, 2026 rates.
GST / QST / HST Calculator
Before tax100,00 $
TPS / GST5,00 $
TVQ / QST9,98 $
TOTAL114,98 $
2026 rates. For reference only. Forge Tech does not replace a tax advisor.
How do GST and QST work in Quebec?
In Quebec, the GST (Goods and Services Tax) is 5% and the QST (Quebec Sales Tax) is 9.975%. Both apply on the same amount (QST no longer compounds on GST since 2013). Combined effective rate: 14.975%.
Other provinces
- HST (Harmonized Sales Tax): Ontario 13%, New Brunswick / Nova Scotia / P.E.I. / Newfoundland 15%
- GST only: Alberta, Yukon, NWT, Nunavut
- GST + provincial PST: British Columbia (5 + 7), Saskatchewan (5 + 6), Manitoba (5 + 7)
Mandatory registration?
You must register for GST and QST once your revenue exceeds $30,000 over 4 consecutive quarters. Below that threshold, registration is voluntary (often advantageous to recover ITC/ITR credits).
Save time with Forge Tech
Forge Tech automatically calculates GST, QST and HST on all invoices and quotes. Quarterly and annual remittances are generated in one click.
