There could be several different reasons why this form may be necessary. Schedule 3 is a new form introduced by the IRS as part of the 2018 tax reform that reports the Non-Refundable Credits on your tax return. It is transferred from this form to your Form 1040, line 12
If you'd like to view your Form 1040 to see how this schedule will impact your return, please follow the steps below:
When logged in to TurboTax online:
1.) On the left-hand side of your screen, click Tax Tools
2.) Click Tools
3.) On the window that pops up, click View Tax Summary
4.) On the left-hand side of your screen, click Preview My 1040
If you scroll down this form, towards the bottom, you will see Schedule 3.
