CPP Post-Retirement Benefit Calculator

The PRB is the CPP system's reward for continuing to contribute after you've started your retirement pension. It was added as part of the 2012 CPP changes and works alongside the regular pension — you don't have to choose between the two. Each year you contribute earns a small additional payment that begins the following year and continues for life.

The formula: annual PRB = Service Canada's published maximum new PRB at age 65 for the following year × (your pensionable earnings ÷ that year's YAMPE, capped at 1) × age adjustment factor. Service Canada publishes this maximum directly each year (it reflects the CPP enhancement's higher accrual rate plus the CPP2/YAMPE second-additional tier, so it runs higher than a simple 1/40 share of the retirement pension — the January 2026 maximum new PRB is $54.69/month, versus a maximum retirement pension of $1,507.65/month). Earnings between the YMPE and YAMPE count toward your PRB too, since CPP2 contributions on that band build enhanced benefit just like CPP1 does below the YMPE.

The age adjustment factor mirrors the CPP retirement pension start-age rules: 0.6% reduction per month before 65 (so age 60 = 64%), and 0.7% increase per month after 65 (so age 70 = 142%). Practically: earning PRB at 67 is worth about 17% more per year than earning it at 65.

Mandatory vs optional contributions: between 60 and 64, contributions are mandatory if you're employed; from 65 to 69 you can file CRA form CPT30 to stop contributing (and earning more PRB); from the year you turn 70, contributions are no longer allowed under any election.

Indexation: once a PRB starts paying, it's CPI-indexed for life — so the headline numbers in this calculator understate the real-dollar value over a long retirement.