What is the minimum age for contributing to an RRSP? What about the maximum age?

There's no minimum age for opening an RRSP. However, you must receive employment or business income to earn contribution room, and must be over 18 years old to contribute more than $2,000 a year.

You can contribute to your RRSP until December 31 of the year in which you reach age 71. However, you can contribute to your spouse's RRSP if they have yet to reach the age limit, or continue to save by contributing to a TFSA.