I had a 2018 federal income tax refund that I applied to my 2019 federal income taxes. I did not use Turbo Tax last year. Where I do enter this figure?

To enter, change or delete a refund from the prior year applied to this years taxes (Federal, State, Local) -

• Click on Federal Taxes (Personal using Home and Business)
• Click on Deductions and Credits
• Click on I'll choose what I work on (if shown)
• Scroll down to Estimates and Other Taxes Paid
• On Other Income Taxes, click on the start or update button

On the next screen select the options under 2018 Refund Applied to 2019

Or enter refund applied to this year in the Search box located in the upper right of the program screen. Click on Jump to refund applied to this year

The prior year refund amount applied is shown on Schedule 3 Line 8 and on Form 1040 Line 18d