The IRS has an appeals system for people who do not agree with the results of an examination of their tax returns or with other adjustments to their tax liability.

The IRS will send you a report and/or letter that explains the proposed adjustments. The letter also tells you of your right to request a conference with an Appeals officer, as well as how to make your request for a conference. In addition to examinations, many other things can be appealed such as penalties, interest, trust fund recovery penalties, offers in compromise, liens, and levies. If you request an Appeals conference be prepared with records and documentation to support your position.

Appeals conferences are informal meetings. You may represent yourself or have an attorney, accountant, or an individual enrolled to practice before the IRS, represent you. If you do not reach agreement with the Appeals or Settlement Officer, or you do not wish to appeal within the IRS, you may appeal certain actions through the courts.

For further information on the appeals process and information on how to stop interest from accruing on any anticipated liability, refer to Publication 5 (PDF), Your Appeal Rights and How To Prepare A Protest If You Don't Agree, and Publication 556, Examination of Returns, Appeal Rights and Claims for Refund. Also, Publication 1660 (PDF), Collection Appeal Rights, discusses how you can appeal collection actions.