1-800-548-4639The IRS late filing penalty is typically 5% of the unpaid tax for each month, or part of a month, that your tax return is late. The penalty can increase up to 25% of the unpaid tax.
This is one of the main reasons it is better to file your tax return as soon as possible, even if you cannot afford to pay the full balance.
How the failure-to-file penalty works
The IRS failure-to-file penalty applies when you owe taxes and do not file your return by the deadline.
The penalty is generally calculated based on:
- The amount of tax owed
- How late the return is
- Any payments or credits already applied
Because the penalty is charged monthly, waiting longer can make the balance grow quickly.
Late filing is usually more expensive than late payment
The failure-to-pay penalty is typically much lower than the failure-to-file penalty. In many cases, the failure-to-pay penalty is 0.5% of the unpaid tax per month.
That means not filing can be much more expensive than filing without paying in full.
If you cannot pay everything you owe, filing still helps you avoid or reduce the larger penalty.
Interest may also apply
In addition to penalties, the IRS may charge interest on unpaid taxes and some penalties. Interest can continue to accrue until the balance is paid or otherwise resolved.
This is why filing and addressing the balance sooner is usually better than waiting.
Not sure where to start with unfiled taxes?
If you’re dealing with back taxes or unfiled returns, getting clarity now can help you avoid additional penalties.
How to reduce the impact
If you missed the filing deadline, you can help reduce the impact by taking action quickly.
- File your tax return as soon as possible
- Pay what you can toward the balance
- Look into payment options if you cannot pay in full
Once your return is filed, you may have more options to resolve the balance and prevent the issue from getting worse.
Bottom line
The IRS late filing penalty can be significant, especially if you wait several months to file. Filing as soon as possible, even without full payment, can help reduce penalties and put you in a better position to resolve your tax debt.
Michael is the Digital Marketing Manager at BC Tax, where he leads content strategy and digital initiatives focused on helping individuals better understand complex tax topics. He works closely with the Director of Digital Marketing and internal teams to develop clear, accurate, and practical educational resources covering areas such as unfiled tax returns, IRS penalties, and tax debt resolution. Michael graduated from the University of Colorado Boulder.
