Free tools
Free GST/HST and CRA tools
Quick answers for self-employed people in Canada. No sign-up, and nothing you type leaves your browser.
- GST/HST calculatorAdd or remove GST, HST, PST, QST or RST for any Canadian province or territory. Free, with the rates as of 2026 and each tax shown on its own line.
- Small supplier checkerEnter your sales for the last four calendar quarters to see if you are still under the $30,000 small supplier limit, and what to do and by when if you are not.
- CRA dates calendarThis year's and next year's CRA dates for self-employed people: income tax filing and payment, instalments and GST/HST returns, with a calendar file to download.
Keep your books and GST/HST in one place
CollabNorth does invoices, receipts and expenses for owner-run businesses, with the right tax on every invoice. Free for one owner.
Start freeNo credit card needed.