Second IRS charge after filing

[nachokat]

Hi, 

Realizing after the fact that I had a second charge direct to the IRS after filing my federal return. I had additional taxes due, but no known penalty as most of the tax bill was due to some Roth conversions I decided to make. Total value is $48... far under what I ultimately owed. Any ideas of what this is for? I looked at the IRS site directly and did not find any additional details that would explain this. The description clearly states its a direct charge to IRS, not a separate Intuit or TurboTax filing fee.

[JotikaT2]

The IRS would be the only entity that would be able to provide an answer for you.  Typically, the IRS will mail you a letter if they make any changes on your tax return.  Please see this link for more details on how you can contact them.