When to pay
Instalment payments are due within one month after the end of each of your fiscal quarters. To view your instalment due dates online, use the instalment payment calculator service at My Business Account or at Represent a client.
When a due date falls on a Saturday, a Sunday, or a public holiday recognized by the Canada Revenue Agency (CRA), your payment is considered on time if the CRA receives it or if it is postmarked on or before the next business day.
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Example
You have a December 31 fiscal year-end. Your instalment due dates are as follows:
Instalment due dates Final Quarters Instalment due dates January 1 to March 31 April 30 April 1 to June 30 July 31 July 1 to September 30 October 31 October 1 to December 31 January 31