How do I revoke my consent for a representative who is acting on my immigration file?

You can withdraw your consent for a representative at any time, and doing so simply requires notifying IRCC in writing, generally through the applicable IRCC representative form or webform, confirming that the person or firm is no longer authorized to act on your behalf. Once IRCC processes that notice, it will correspond directly with you, or with a new representative if you have appointed one, instead of the previous representative.

There is no need to provide a specific justification to withdraw consent, and no requirement that the representative agree to being removed — authorization to represent someone runs from the applicant's own consent, so withdrawing that consent is entirely within the applicant's control. It is a good practice to keep a copy of the notice submitted to IRCC and to note the date it was sent, in case there is any question later about when the change took effect.

If you are switching to a new representative, it is worth submitting the new representative's information at the same time as the revocation, so there is minimal gap in who IRCC is corresponding with about your file.