Taxes on your invoices
MainteQC calculates GST (5%) and QST (9.975%) independently, on the pre-tax price — never compounded. Amounts appear on distinct lines with your tax numbers.
- Historized rates: a 2024 invoice reprinted later shows 2024 rates.
- Exempt clients: add the exemption certificate to the client's file; their invoices omit taxes automatically.
- Outside Quebec: place of supply determines the tax (e.g., 13% HST for Ontario).
- Remittance: the per-period GST/QST summary is ready for your filing, and deadline reminders are sent to you.
Your GST and QST numbers are configured in Settings → Business.