How your workplace pension cuts your RRSP room - and by how much

Your T4 shows a pension adjustment of $8,000. Your RRSP contribution room just dropped by $8,000. Most Canadians with workplace pensions don't see this coming until they check their Notice of Assessment and wonder where half their room went.

Pension adjustment - PA on your tax slip - exists because the CRA won't let you double-dip on retirement savings tax breaks. If your employer pension already gives you tax-deferred retirement money, your RRSP room gets reduced to keep things fair with Canadians who don't have workplace pensions.

How pension adjustment gets calculated

The PA equals the value of pension benefits you earned this year. For defined benefit pensions - the kind that pays a set amount when you retire - it's calculated as 9 times your annual pension credit minus $600.

Say you work for the government and earn $1,000 per year in pension benefits. Your PA would be $8,400 (9 × $1,000 - $600). That $8,400 comes straight off your RRSP room for next year.

For defined contribution pensions - where you and your employer contribute to an account - the PA equals whatever went into your pension account. If you contributed $3,000 and your employer matched $3,000, your PA is $6,000.

The 9x multiplier for defined benefit plans reflects how valuable guaranteed pension income is compared to RRSP savings. A dollar of guaranteed pension at retirement is worth more than a dollar you might withdraw from an RRSP, so the CRA counts it as more valuable for PA purposes.

Why your RRSP room disappears

Without pension adjustment, someone with a generous workplace pension could also maximize their RRSP and get way more tax-deferred retirement savings than someone without a pension. The PA levels the field.

Your normal RRSP room starts at 18% of last year's earned income, up to $32,490 for 2025. Then the CRA subtracts your PA from the previous year. So if you earned $80,000 and had a PA of $5,000, your RRSP room would be $14,400 - $5,000 = $9,400 instead of the full $14,400.

At higher incomes with generous pensions, PA can wipe out your RRSP room entirely. Someone earning $180,000 with a PA of $32,490 would have zero RRSP room for that year.

The NOA tells you everything

Your Notice of Assessment shows your exact RRSP room after pension adjustment. Don't calculate it yourself - between carry-forward room from previous years, unused room, and PA calculations, the math gets messy fast. TaxSplit.ca factors in PA when showing your available contribution room.

The PA appears on your T4 in box 52. It gets reported to the CRA and reduces next year's RRSP room, not this year's. So your 2024 PA affects your 2025 RRSP contribution limit.

When PA works in your favor

Some years your PA might be negative - called a pension adjustment reversal or PAR. This happens if you leave a job before being fully vested in the pension, or if pension benefits get reduced. The PAR gives you back RRSP room to compensate for the pension value you're losing.

If you have both pension and RRSP room, use the RRSP room first if you're planning to leave that job. Once you're locked into a pension, that PA reduction is permanent, but unused RRSP room carries forward indefinitely.