Why are my Canada Pension Plan (CPP) amounts incor...

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Why are my Canada Pension Plan (CPP) amounts incorrect on my tax return?

There are a few different reasons your CPP amounts may be different from what you're expecting.

Your birthdate is incorrect or you turned 18 or 70 during the tax year.

The CPP amount you're required to pay is based on your age income. TurboTax may be calculating a CPP overpayment because your age was entered incorrectly or you turned a "threshold" age during the year.

To verify (or change) your birthdate:

  1. In the upper-right corner of your screen, select Find*.
  2. In the Find window, type Personal Info and select Go.

You paid more CPP than you needed to.

Your employer(s) may have withheld more CPP amounts from your pay than was required by your age and income. TurboTax automatically sums up your CPP contributions from your T4s and calculates the overpayment for you, if applicable.

You've already started receiving CPP benefits.

If you've started collecting CPP, you don't need to make CPP contributions anymore and should receive any amounts you contributed back for the current tax year.

You indicated you are CPP exempt.

When you indicate that you're CPP exempt in box 28 of your T4, TurboTax automatically calculates any CPP amounts paid as an overpayment.

To verify (or change) box 28 on your T4 slip(s):

  1. In the upper-right corner of your screen, select Find*.
  2. In the Find window, type T4 and select Go.

You're self-employed.

Self-employed taxpayers are responsible for remitting their own CPP contributions. The amount of CPP contributions due depends on the amount of self-employment income you had during the year (minus expenses). TurboTax calculates these amounts automatically based on your entries in the Business section.

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