In other cases, the IRS will schedule an appointment to visit you at your home or business, or ask you to report to their local office. Check the date and time. If you can't make it, or need more time to prepare, call as soon as possible to reschedule. Provide only the documents asked for. Handing over additional records can result in the audit going beyond its original purpose.
Same thing goes for questions.
Answer truthfully and completely, but don't introduce extra information. You have the burden of proving your return is correct. But if you've filed it honestly and kept thorough records, you should have no reason to worry. Also see Doing Your Taxes , from MetLife and the U.S. Department of the Treasury. It includes important tips like how long to hold on to your records, and plenty of other advice to make the whole tax process, including audits, less stressful.