Get your taxes done using TurboTax

You will see the overpayment show up as follows:

For the 2019 return, you have the option to either have the amount of the overpayment on Line 20 refunded to you on Line 21, OR you have the option to have the overpayment applied to your 2020 estimated taxes on Line 22.  The amount on Line 22 would then be considered a "payment" towards your 2020 tax liability. 

As mentioned above, the overpayment is essentially the amount of taxes actually paid exceeding the amount of taxes due. 

This overpayment shows up on 2019 Form 1040, Page 2,  Line 20.  (If you are referring to the 2018 tax return, it would show up on 2018 Form 1040, Page 2, Line 19.)

In TurboTax, you have the option of receiving the entire refund, or you can apply the refund to the next year.  You can apply the refund by going into the Federal section of the program and doing the following:

1. Select Other Tax Situations Tab
2. Select "Additional Tax Payments" section
3. Select Apply Refund to next year

@Arlindaloud