GST/HST Calculator
Add or remove GST/HST at 5%-15% by province, check the $30,000 small-supplier registration threshold, and see the Quick Method alternative.
You're below the registration threshold and don't need to register yet.
The $30,000 CAD 'small supplier' threshold is federal and applies uniformly across all provinces/territories (GST and HST share one registration regime): once your worldwide taxable supplies exceed $30,000 in a single calendar quarter OR over the trailing four consecutive calendar quarters, you must register for GST/HST and start charging it — below that you may register voluntarily but are not required to. Other provinces charge different combined HST rates on the SAME federal base (Nova Scotia 14%, New Brunswick/Newfoundland & Labrador/PEI 15%), while Alberta and the territories charge GST-only (5%) and BC/Saskatchewan/Manitoba/Quebec layer their own separate provincial sales tax (PST/QST) alongside the 5% GST rather than harmonizing it — this VatConfig models Ontario's 13% HST as the default, representative rate per this fragment's province choice, with plain 5% GST also listed.
Charging and remitting GST/HST as a Canadian contractor
GST/HST isn't one national rate — it's 5% GST alone in Alberta and the territories, and a single harmonized rate elsewhere that folds a provincial component into the same tax, 13% in Ontario, 15% in most of the Maritimes, and 14% in Nova Scotia. This calculator adds or removes GST/HST at the right rate for your province and flags when you're required to register.
What you need to know as a contractor
- You must register for GST/HST once your worldwide taxable revenue passes $30,000 in a single calendar quarter, or over the trailing four consecutive quarters — below that, registering is optional
- GST/HST is charged on top of your invoice and remitted to the CRA — it isn't part of your income, and shouldn't be built into your quoted rate
- The Quick Method, already modelled in our flat-rate VAT calculator, can reduce the effective amount you remit compared to tracking input tax credits line by line, for smaller service businesses
