Form 2210, Underpayment of Estimated Tax by Individuals, Estates, and Trusts

This form is used if you did not pay enough tax throughout the tax year because your estimated payments or withholdings were too low.

If you have income from self-employment, investments, rental properties, or other sources, you'll need to make quarterly estimated tax payments if you expect to owe at least $1,000 in tax for the year. Miss these payments, and you'll have to pay an underpayment penalty.

*We do not support Form 2210, Underpayment of Estimated Tax by Individuals, Estates, and Trusts in our filing flow.

  • Part I – Required Annual Payment: Calculates your required annual payment, which is the smaller of 90% of your current year tax or 100% of your prior year tax (110% if your adjusted gross income on that year's return was more than $150,000, or $75,000 if your filing status was married filing separately). 

  • Part II — Reasons for Filing: Contains checkboxes for different scenarios that require you to file this form. For instance, if you're requesting a waiver for the penalty, or if your income varied throughout the year and the penalty would be reduced or eliminated when figured using the annualized income installment method.

  • Part III – Penalty Computation: Calculates the amount underpaid for each period.

  • Schedule AI — Annualized Income Installment Method: If your income varied during the year, you can reduce or possibly eliminate the penalty by computer your tax payments using the annualized income installment method in Schedule AI, part of Form 2210.