IRS Form 2210 (Underpayment of Estimated Tax by Individuals, Estates, and Trusts) calculates the underpayment penalty if you didn't withhold or pay enough taxes during the tax year.
Form 2210-F is a variation if you made at least 2/3 of your gross income from farming or fishing.
TurboTax will automatically generate Form 2210 if your return needs it.
To revisit the underpayment Penalty section:
- Open or continue your return.
- Search for underpayment of taxes.
- Select the Jump to link in the search results.
- The Underpayment Penalties screen will display the penalty amount. Select Continue to review this section and make any needed adjustments.