Canada·Calculators·CA RRSP deduction limit

RRSP deduction limit estimate

The lesser of 18% of previous-year earned income and the annual dollar limit, plus unused room from a prior year, minus the pension adjustment.

Your numbers

Tax year

2020-2026

Previous-year earned income

$CAD

Unused room from a prior year

$CAD

Pension adjustment

$CAD

RRSP deduction limit for 2026:

CA$16,200

Of which CA$16,200 is new room for 2026

Annual dollar limitCA$33,810

18% of earned incomeCA$16,200

New roomCA$16,200

Unused room from a prior yearCA$0

Pension adjustment−CA$0

Deduction limitCA$16,200

Previous-year CRA-defined earned income, not total or net income. The 1% per month over-contribution penalty applies only above a $2,000 buffer and is not modelled. CRA Notice of Assessment holds the authoritative figure.

Source: Canada Revenue Agency: RRSP dollar limit and 18%-of-earned-income formula · Rules for 2026 · https://www.canada.ca/en/revenue-agency/services/tax/registered-plans-administrators/whats-new.html · Checked 2026-09-22Using Canadian rules

Common questions

The rules behind this calculator

Written up, with the page each rule came from.

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RRSP deduction limit: the 18% formula and the annual dollar cap

New RRSP room is based on 18% of prior-year earned income, up to an annual dollar cap. Unused room and pension adjustments affect the deduction limit.

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