There are a number of dates during the year when returns are due to be filed or payments are due to be paid. Also, there are dates when we pay credits or benefits to you. This page gives information about these important dates.
When a due date falls on a Saturday, a Sunday, or a public holiday, we consider your payment to be paid on time or your return to be filed on time, if we receive it or if it is postmarked on the next business day.