Should I go back to change the error I made with the employment amount? I doubled the amount of income from employment.

You should go back to correct the error and in order to do so follow the steps below:

1. Select Find from the menu and enter T4 Employment Income
2. Select T4 Employment Income from the search results, then select Go
3. Select the applicable T4 by clicking the Edit button in front of it.
4. Check the boxes to correct the error you made, then select Continue
5. Continue as prompted to complete your Employment Income.

Thank you for using TurboTax.