To enter your payment made with your extension:
- Open or continue your return in TurboTax, if it's not already open
- Search for estimated tax payments (use this exact phrase) and then click the Jump to link in the search results
- In the Payments with Extension section, select Start or Update next to the payment you submitted with your type of federal, state, or local extension. Make sure the amount shown is correct
OR:
- Federal Taxes tab (Personal tab for Desktop Home & Business version)
- Deductions and Credits
- Scroll down to Estimates and Other Taxes Paid
- Then Other Income Taxes - Click the Start or Update button
