Example audit letters from the IRS and state taxing agencies. These are just a few examples of a sample audit letter from the IRS.An Initial Contact Letter is your notification that your tax return has been selected for an audit (also called an examination). Letter 2202 B, An Initial Contact Letter is notification that your tax return has been selected for an audit (also called an examination). Attach IRS form 12661. The IRS audit reconsideration form 12661 is the official letter that taxpayers can fill out to request a reconsideration. An IRS audit letter is a message from the IRS. It's their way of saying they want to double-check your tax return. We appreciate your cooperation during the audit and providing the records we request within the timeframe we propose. If you received a letter from the IRS, don't ignore it.