Example audit letters from the IRS and state taxing agencies. Tax audit letters will include your name, tax ID number or Social Security number, employee ID number, address and contact information.Sending an IRS audit reconsideration request? If you received a letter from the IRS, don't ignore it. Follow the directions on your letter, it includes all the information you need to respond. An IRS letter will clearly state the reasons for a review and audit, and the year the taxpayer filed the return. An Initial Contact Letter is your notification that your tax return has been selected for an audit (also called an examination). A tax audit is a review of your tax return to verify that your income and deductions are accurate. Document all interactions with the IRS. Keep copies of all letters, emails, and notes from phone calls.