There are contribution limits on RRSPs; to find out the exact amount you can contribute to your RRSP for the current year, check on your most recent the Notice of Assessment you received from Canada Revenue Agency.
You may contribute to your RRSP until December 31 of the year in which you reach age 71. The following limits and deadlines apply annually.
Maximum Annual RRSP Contribution Limits
Your allowable RRSP contribution for the current year is the lower of:
Earned income includes salary or wages, alimony received, and rental income, among other income sources, but does not include items such as investment income.
Company Pension Plan or Deferred Profit Sharing Plan – As a member of a company–sponsored registered pension plan or deferred profit sharing plan, the amount that you can contribute to your RRSP must be reduced by the total value of the pension credits you earned for the year.
This amount is referred to as a pension adjustment (PA) and it is reported on the T4 slip (Statement of Remuneration Paid) that you receive from your employer.
Annual Contribution Deadline – To be eligible for an RRSP deduction in a specific taxation year, you can make contributions anytime during the year, or up to 60 days into the following year.