If you have not filed your tax return yet, you are still able to make changes to your personal information.
Since you used your SIN number as your spouse's and vice versa, where you are not able to change one or the other because you already enter the same for the other person.
We recommend changing your SIN number to "000 000 000" and then proceed to put in the actual SIN number for your spouse. Once you input your wife's, you can proceed to change yours with your actual SIN.
In order to access your personal information on your Online TurboTax return, follow the steps below:
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