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Your rate and prime

What is your card's rate over prime?

A variable card rate is almost always written as prime plus a margin. Prime moves with the Bank of Canada; the margin is the issuer's decision. Type your rate to see which part is which.

Your figures

Typed, not dragged. The figure updates as you type.

% a year

It is on your statement as "annual interest rate, purchases". Arrows step 0.25.

Prime, Bank of Canada, Sep 30Published figure, checked Oct 1, 20264.45%

Nothing is assumed beyond the figures on this page. Tax is not modelled.

The part of your rate that is not prime

17.54 pts

Prime is 4.45% today. Everything above it is the issuer's margin.

The working

Your rate
21.99%
Prime, Bank of Canada, Sep 30
− 4.45%
The issuer's margin
17.54 pts

Arithmetic on your figures. Not a recommendation or personal advice.

Where prime came from

Read on
September 30, 2026
Source
Bank of Canada. Used under the Bank of Canada Terms of Use.
Series
V80691311 on bankofcanada.ca

We do not carry US cards

This tool answers the question the same way wherever you are. What we cannot do here is tell you which card to move to, because we have no US card data and we are not going to guess at rates.

Nothing on this page is a recommendation, and we are not paid anything on it.

Arithmetic on your figures. Not a recommendation or personal advice. It does not predict next year, and it does not ask for your bank account.

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What is left to spend this month?

A margin is what the card costs when you carry a balance. Leftover is what keeps you from carrying one.

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