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It was created to provide general pension information only.

CPP/OAS Voluntary tax deduction

If you would like to request Service Canada pension office to withhold a percentage or fixed amount of your CPP or OAS benefits for tax deductions, you may either:

  1. Complete and mail the Request for Voluntary Federal Income Tax Deductions form (ISP-3520). Click here to download.
  2. Call the pension call centre at 1-800-277-9914 to speak with a call centre agent to set up right away.

Once the voluntary tax deduction is set, the amount will be withheld as of the next month’s payment.

If you would like to change the voluntary tax deduction amount, you may also call the pension call centre to adjust the amount. The new deduction will be in effect as of your next month’s payment.

CPP/OAS Voluntary tax deduction

If you want to stay on top of every federal benefit payment date in 2026, we’ve put together a clear and easy-to-follow guide to help you plan ahead with confidence. Explore the full schedule and make sure you never miss a payment by checking out the 2026 Federal Government Benefit Payment Calendar.

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