What if a political organization fails to pay the tax shown on Form 1120-POL? A political organization that does not pay the tax due generally may have to pay a penalty of ½ of 1% (0.005) of the unpaid tax for each month or part of a month the tax is not paid, up to a maximum of 25% of the unpaid tax. If you receive a notice about a penalty after you file the return, reply to the notice with an explanation and the IRS will determine if you meet the reasonable-cause criteria. Do not include an explanation when you file your return.
