Get your taxes done using TurboTax

@XXthCentMan Since you are using the TurboTax online editions, you need to click on Federal on the left side of the online program screen.

Then click on Other Tax Situations

Under Additional Tax Payments
On Apply Refund to Next Year, click on the start or revisit button

 

The amount applied to next years taxes will be shown on Form 1040 Line 36

 

You can view your Form 1040 plus Schedules 1, 2 and 3 at any time using the online editions. Click on Tax Tools on the left side of the online program screen. Click on Tools. Click on View Tax Summary. Click on Preview my 1040 on the left side of the screen.