Complete your protest and mail it to the IRS address on the letter that explains your appeal rights. This form is to be used to request an Appeals review upon completion of an examination (audit) if you do not agree with our proposed changes from the audit.To file for an appeal with the IRS Office of Appeals, the first thing you should do is file a protest. This must be done in writing, in the form of a letter. Purpose of this form: You can use this form to appeal a Letter 4890 Notice of Denial or a Letter 5015 Notice of Revocation of your IRS-approved. Sending an IRS audit reconsideration request?