Are Underpayment Penalties Deductible?

The U.S. tax code does not allow taxpayers to deduct penalties assessed by the Internal Revenue Service (IRS). ... The IRS typically assesses penalties along with interest on the balance owed by a taxpayer, and this interest is not tax-deductible.

Are fines and penalties tax deductible?

Fines and penalties a business pays to the government for violation of any law are never deductible. For example, a business owner may not deduct tax penalties, parking tickets, or fines for violating city housing codes.

Can you deduct underpayment interest?

This additional interest charge is a penalty and you cannot deduct it from your federal taxes. ... For under- payments on returns due before January 1, 1989, not including extensions, the penalty includes an additional 50% of the interest charged on the part of your underpayment due to negligence.