While the contribution deadline is February 29, 2020, it’s always a good idea to plan ahead. After all, other financial obligations will crop up in the new year, especially as holiday bills start to roll in. For 2019, your contribution will be limited to 18% of your 2018 earned income, to a maximum of $26,500. Your contribution room is tracked by the CRA, so check your Notice of Assessment for your personal contribution limit.