FirmdeskCRA deadlines
CRA deadlines for 2027
The dates that come back every year in a small firm, for 2027, worked out by the same rules Firmdesk uses for each client. For one client's own dates, the free deadline calculator takes its year-end, province and services.
Deadlines by kind
T2 corporate tax, by year-end
The T2 return, and the balance at two or three months, for each month-end year-end.
The dates for T2 corporate tax, by year-endGST/HST, by reporting period
Monthly, quarterly and annual filers, the June 15 rule for sole proprietors, and instalments.
The dates for GST/HST, by reporting periodPayroll remittances, by remitter type
Quarterly, regular, and the two accelerated thresholds, every date of the year.
The dates for Payroll remittances, by remitter typeT4, T4A and T5 slips
The last day of February, and the T5018 and T5013 beside them.
The dates for T4, T4A and T5 slipsCorporate tax instalments
Monthly, or quarterly for a small CCPC that qualifies, for a December 31 year-end.
The dates for Corporate tax instalmentsT1, employees and self-employed
April 30 and June 15, the balance for both, and the four instalments.
The dates for T1, employees and self-employed