When tax time comes around, inevitably there are people who are not able to pay everything they owe. Although the IRS always prefers that you find a way to pay your taxes in full, circumstances can sometimes prevent that from happening. If you find yourself in this predicament, the IRS does have options available to help you resolve your tax debt. According to the IRS, if you e-file your tax returns, and the transmission is rejected because the system already has your tax return recorded and confirmed, that means you've already been victimized by a tax fraudster. In that event, the IRS advises continuing to pay and file your taxes by paper-form Free File Online Lookup Tool. Use the Lookup Tool to help you choose a Free File offer to file your taxes for free online. Just answer a few simple questions about income, age, and state residence to find out which offer(s) is available for you.