Sending an IRS audit reconsideration request? You don't need to complete a special form just a letter explaining your request for audit reconsideration.Say that it is an audit reconsideration request. The letter should include the documents and the last audit report. Your request for audit reconsideration was partially or fully disallowed. A letter clearly stating your reason for reconsideration; the IRS suggests using IRS Form 12661, Disputed Issue Verification. 2.g) and documented in a letter of collaboration from each collaborator. Such letters should be provided in the supplementary documentation section of Research. Example: One morning we wake up to a few inches of snow. Finally, the notice will include the name of the IRS agent completing the examination with their signature.