Employee responsibilities and how to change your tax deductions

As a new or current employee, you are responsible to meet both of the following criteria:

  • obtaining, showing, and giving your social insurance number (SIN) to your employer upon starting employment
  • completing and submitting to your employer the federal and provincial or territorial Form TD1, when starting employment or when your circumstances result in a change to your "Total claim amount" (Line 13 of Form TD1). For more information, go to Filing Form TD1, Personal Tax Credits Return

Change your tax deduction

You can choose to have more tax deducted from your pay or other income or you can ask your employer or payer to reduce the amount of tax he or she deducts by submitting a letter of authority.

To increase your tax deductions, go to Increasing income tax deductions. For information on how to decrease your tax deductions, go to Reducing remuneration subject to income tax.

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