Every institution has a slightly different mailing schedule, but it will generally follow the table below. The year-end statement comes first (generally at the end of January or early February). The year-end statement will include the remainder of year RRSP receipts, T4RSPs, and Capital Gain/Loss reports.
First 60-day RRSP receipts, T3s, T5s, and RESP T4As generally follow in separate mailings in February and March. Below is the full mailing schedule:
Source: CI Investments