Billing & Tax Policy
How subscriptions, invoices and Canadian sales tax work
Last updated: 1 November 2026
1. Billing
Tendarix Pro is billed monthly in Canadian dollars, by Synapcy Development INC. (operating as Tendarix), through our payment processor, Stripe. Payment is taken at the start of each billing period. You can cancel at any time from the Billing page, and access continues until the end of the period you have paid for.
2. Sales tax
Prices exclude sales tax. Software-as-a-service subscriptions are generally taxable supplies under the Excise Tax Act (Canada). Where we charge GST/HST, the rate depends on the province or territory of your billing address:
| Province / territory | Tax | Rate |
|---|---|---|
| Ontario | HST | 13% |
| New Brunswick, Newfoundland and Labrador, Prince Edward Island | HST | 15% |
| Nova Scotia | HST | 14% |
| Alberta, British Columbia, Manitoba, Québec, Saskatchewan, Northwest Territories, Nunavut, Yukon | GST | 5% |
| Outside Canada | Generally zero-rated for non-residents, where the conditions are met | 0% |
Provincial sales tax or Québec sales tax (QST) is billed separately only where we are registered to collect it.
3. Business subscribers and input tax credits
Canadian businesses registered for GST/HST can generally claim the tax they pay on a subscription as an input tax credit, to the extent the subscription is used in commercial activities. Please confirm your own position with your accountant.
4. Invoices and records
You can view your invoices and manage your payment method through “Manage billing” on the Billing page. We keep billing records for at least six (6) years, in line with Canada Revenue Agency record-keeping requirements.
5. Contact
For billing questions or tax exemptions, contact info@tendarix.ca.