I am looking to make an amendment to the monthly tax installment for the current tax year. I want to increase my taxes paid monthly to reflect a higher income amount.
I can't recall how I initially set it up and I have tried searching for the proper document but there seems to be a million forms for this. I didn't do this from My CRA or anything and and I don't have a My CRA account. My accountant does all the taxes.
Any tips?
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