Calculate potential penalties for late filing, late payment, or underpayment
| Component | Rate | Period | Amount |
|---|
5% per month (or part of month), up to 25% maximum
0.5% per month (or part of month), up to 25% maximum
Federal short-term rate + 3%, compounded daily
If you file your return but don't pay, the failure-to-file penalty is reduced by the failure-to-pay penalty amount. The combined penalty is 5% per month (4.5% file + 0.5% pay) for the first 5 months.