Get General Information A. Louisiana Imposes An Underpayment Penalty ...

You will receive an IRS notice if you underpaid estimated taxes. They determine the tax underpayment penalty by calculating the amount based on the taxes accrued (total tax minus tax credits) on your original tax return or a more recent one you filed.

For individual filers, calculating federal taxable income starts by taking all income minus “above the line” deductions and exemptions, like certain retirement plan contributions, higher education expenses and student loan interest, and alimony payments, among others.

An underpayment penalty is a fine levied by the Internal Revenue Service (IRS) on taxpayers who don't pay enough tax during the year through withholding and/or their estimated tax payments, or who pay late.

Use Form 2210 to determine the amount of underpaid estimated tax and resulting penalties as well as for requesting a waiver of the penalties. You may need this form if: You're self-employed or have other income that isn't subject to withholding, such as investment income.

The substantial underpayment penalty specifically equals 20% of the portion of the underpayment that was understated on the tax return.

Estimated tax payment safe harbor details The IRS will not charge you an underpayment penalty if: You pay at least 90% of the tax you owe for the current year, or 100% of the tax you owed for the previous tax year, or. You owe less than $1,000 in tax after subtracting withholdings and credits.