There is no specific frequency that Canada FED as a whole follows, since so many payments from the government are made using the same code. The payment date would depend on the payment schedule of the specific benefit or refund that you are receiving. For example, the GST/HST credit is paid out quarterly, usually on the 5th of the month. The Canada Child Benefit (CCB) is paid out monthly, usually on the 20th of the month. To find out whether the Canada FED payment you received was a one-time payment or will be recurring, your best bet would be to call CRA directly at 1-800-387-1193.