IRS Penalty Calculator
Calculate IRS penalties for late filing, late payment, and underpayment of estimated taxes
About this calculator
The IRS Penalty Calculator helps taxpayers estimate potential penalties for various tax compliance issues including late filing, late payment, and underpayment of estimated taxes. This tool provides accurate calculations based on current IRS penalty rates and formulas, allowing you to understand your potential tax obligations before receiving official notices. By calculating these penalties in advance, you can better plan your finances, avoid surprises, and take corrective action to minimize additional costs.
How to use
Enter your tax amount owed, filing deadline, and actual filing/payment dates into the calculator. Select the type of penalty you need to calculate (late filing, late payment, or estimated tax underpayment). The calculator will automatically compute your penalty amount based on current IRS rates and the duration of the delay.
Frequently asked questions
What is the IRS late filing penalty rate?
The late filing penalty is typically 5% of unpaid taxes for each month or part of a month your return is late, up to 25% maximum.
How is the late payment penalty calculated?
The late payment penalty is usually 0.5% of unpaid taxes for each month or part of a month after the due date, capped at 25%.
When do estimated tax penalties apply?
Estimated tax penalties apply when you don't pay at least 90% of current year taxes or 100% of last year's tax liability through withholding and quarterly payments.