Unused amount from previous years + current year entitlement - RRSP/Pension constributions by company = maximum personal contributions 3 M3 p2 m, |( J9 ^2 k( x- `- l' f" N) z, Y( Z! a, K1 R$ }* L& N" a
Unused contributions can be carried forward for up to 7 years, after which will expire.