Every CRA deadline for your business, on one calendar.
Answer a few questions about your business. Get your own dates for GST/HST, payroll remittances, T4/T5 slips and corporate or personal tax, with what to prepare for each one.
Your business, your deadlines
Most answers are on your CRA My Business Account. Nothing you enter here is saved unless you create an account.
Dates follow CRA and registry rules as published on canada.ca (checked October 2026). Your own account may differ, for example a different filing frequency or an instalment reminder from CRA. This calendar is not tax advice.
Never pay a late-filing penalty
The calendar is free. The subscription makes sure nothing slips: reminders before every date, a checklist and documents for each filing, and every business in one place.
Free
- Your 12-month deadline calendar
- What to prepare for each filing
- Download to Google, Outlook or Apple Calendar
- Save one business and tick items off
Subscription
- Email reminders 14, 3 and 1 days before, and the day after if missed
- Store receipts, statements and confirmations against each filing
- Up to 10 businesses
- A live calendar feed that updates itself
- 14-day free trial, cancel anytime
Questions
Which deadlines are included?
GST/HST returns, payments and instalments; payroll remittances for every remitter type; T4, T4A, T5 and T5018 slips; T2 corporate returns, balance-due days and instalments; T1 dates and instalments for sole proprietors; federal, Ontario and BC corporate annual returns; the Ontario Employer Health Tax return; BC PST, Saskatchewan PST and Manitoba RST returns; and in Quebec the combined GST/HST and QST return, Revenu Québec remittances, RL-1 slips and the CO-17 return.
When are BC, Saskatchewan and Manitoba PST returns due?
BC PST is due the last day of the month after each reporting period. Saskatchewan PST is due the last day of the next month when you file online, or the 20th on paper. Manitoba RST is due the 20th of the month after the period; annual filers by January 20.
What does a Quebec business file with Revenu Québec?
The combined GST/HST and QST return, on the same dates as GST/HST elsewhere; Quebec source deductions and contributions at the frequency Revenu Québec assigns; RL-1 slips by the last day of February; and for corporations the CO-17 return six months after year end, with the balance due in two months.
What happens when a due date falls on a weekend or holiday?
CRA and Revenu Québec accept it on the next business day; provincial sales tax returns move past that province's own holidays. The calendar shows that date and notes the legal date it moved from.
What is not covered yet?
Workers' compensation premiums (WSIB, WorkSafeBC, WCB, CNESST), municipal taxes, and Quebec's enterprise register update for sole proprietors. The calendar tells you when one of these applies to you.
Is my information private?
The free calendar is calculated on our server and nothing is stored. Accounts keep your business answers, checklist ticks and documents so reminders can work; you can delete your account and everything in it at any time.
Is this tax advice?
No. It tells you when things are due and what is usually needed, based on CRA's published rules. Your accountant and CRA have the final word on your situation.