If you filed your original return using NETFILE:

1. Sign in to your TurboTax Online account for the tax year you want to prepare an adjustment for
2. In Return Manager, select ReFILE beside the filed tax return you want to adjust

Please see the links below for additional assistance:

TurboTax FAQ: What is ReFILE?

TurboTax FAQ: I've filed my return. Can I make changes?

Thank you for choosing Turbo Tax.