-The IRS can audit by any means such as the mail, in their office, or in your home or office. Depending on the location of your audit is a good indication of the severity of the audit. Typically, correspondence audits are for missing documents in your tax return that IRS computers have attempted to find in which these usually include W-2’s and 1099 income items or interest expense items. This type of audit can be handled through the mail with the correct documentation. The IRS office audit is usually with a Tax Examiner who requests numerous documents and explanations of various documents. This type of audit may also require you to produce all bank records for a period of time so that the IRS can check for unreported income. The IRS audit scheduled for your home or office should be taken more seriously due to the fact that the IRS Auditor is a Revenue Agent. Revenue Agents receive more training and auditing techniques than a typical Tax Examiner. All IRS audits should be taken seriously because they often lead to other tax years and other tax deductions not originally stated in the audit letter.