This publication discusses general rules and procedures that the IRS follows in examinations, what happens during an examination, your appeal rights, and how to file a claim for refund of tax you already paid. Current revision Publication 556 (PDF PDF | HTML | eBook EPUB) Recent developments None at this time. Other items you may find useful All revisions for Publication 556 Low Income Taxpayer Clinics About Publication 1, Your Rights as a Taxpayer Publication 5, Your Appeal Rights and How to Prepare a Protest if You Don't Agree PDF Other current products Related items About Form 656, Offer in Compromise About Form 843, Claim for Refund and Request for Abatement About Form 1040-X, Amended U.S. Individual Income Tax Return About Form 2848, Power of Attorney and Declaration of Representative About Form 4506, Request for Copy of Tax Return About Form 4506-T, Request for Transcript of Tax Return About Form 8379, Injured Spouse Allocation About Form 8857, Request for Innocent Spouse Relief About Form 9465, Installment Agreement Request