You have to enter the payment that you made with the extension into TurboTax. Then your tax return will show the remaining amount due instead of your total tax. To enter the payment, type "tax payments" (without the quotes) in the Search box. Then click the link that says "Jump to tax payments." That will take you to a screen that says "Estimates and Other Income Taxes Paid." On that screen, scroll down to "Payments with Extension" and click the Start button for "Payment with 2020 federal extension."
