How to notify TurboTax of an error it caused in my Federal Tax?

I have not encountered the issue you describe. You might check your 2023 return and see if you could have inadvertently entered a 2023 tax payment as intended for 2024 estimated taxes.

 

Visit or revisit Deductions & Credits, Estimates and Other Taxes Paid. Under that section, go over both Estimates and Other Taxes Paid. You can adjust estimates and other taxes paid for both Federal and State returns there.

 

If you made full payment before filing the return, enter the payment in the Federal section under Deductions and Credits, Additional Payments under Estimated Tax Payments. Once you have entered all of your payments in the Federal section, then revisit the Form 2210.

 

In TurboTax Online:

 

1. Go to Deductions & Credits
2. Select Estimated Tax Payments
3. Click Start or Revisit next to Federal estimated taxes for 2024
4. Scroll down to Additional Payments
5. Enter the Date Paid and Amount Paid