Free tools
Calculators for the Canadian specifics that generic tools get wrong. Free, no sign-up.
Calculator
Canadian sales tax calculator
GST, HST, PST, and QST for all 13 provinces and territories. Add tax to a price or back it out of a total.
Open the calculatorAlso: a reverse calculator and a page for each province.
Calendar
Canadian small business tax deadlines
Every CRA filing and payment date for GST/HST, payroll, T4, T5018, T2, and self-employed returns, filtered to your situation, with a one-click calendar download.
Open the calendarCalculator · Ontario construction
Ontario prompt payment and holdback deadline calculator
Every Construction Act deadline that follows a proper invoice: the owner's 14-day notice and 28-day payment dates, subcontractor payments, the 10% holdback, and holiday roll-forwards.
Open the calculatorData · CSV by email
What small business software costs in Canada (2026)
Regular list prices for accounting, payroll, POS, ecommerce, CRM, and more, with the currency each vendor bills in, card and Interac processing rates, and a source link for every row.
See the price index