To view how the underpayment of estimated tax is calculated:
- Go to the Check Return tab.
- On the left side of your screen, click Forms.
- Select 2210 from the list.
- Scroll to the final page of the form to view the Underpayment Penalty Worksheet.
This worksheet shows how the penalty is calculated based on your input throughout the program, including withholding on income and estimate payments entered in Payments, Penalties & Extensions > 20XX Estimated Payments.