The IRS letter will usually be sent by certified mail (yes, you should pick up any certified IRS mail you receive). If you didn't file a tax return, the tax audit may include gathering information so that the IRS can calculate your tax liability. When you receive an audit letter, the IRS may have identified some areas of concern on your tax return. Most of the time, the auditor needs a more detailed explanation of the circumstances or additional documentation, such as receipts.
The Internal Revenue Service or IRS audits approximately one million people each year in the United States. It's essential to remember that an IRS auditor will never contact you by phone or email or demand payment right away. The IRS will send you a letter 2202B or a 566 letter for a correspondence audit (and sometimes a letter 71). This is a question you can (and usually should) ask the IRS auditor if you have an opportunity to talk to him.
IRS agents responsible for field audits usually want to visit business owners at their establishment (in most cases, taxpayers must reject requests for meetings at their workplace). After receiving an auditing notification, if you have a statement with particular circumstances or important documentation, you can request a meeting with the auditor and a certified tax professional. You probably found this page when you received an auditing letter from the IRS or an IRS-certified email and you want to know how to respond to the letter. During the review, the agent will mark everything that doesn't add up in red and send you a letter requesting more information or asking you to visit the local IRS office to discuss discrepancies.
These same statistics show that these audits generate less than 50 percent of the tax collected in audits. Generally, an IRS audit letter will come from the Internal Revenue Service, but it can also come from the Department of the Treasury. If you challenge the auditor's findings, you must file an appeal within 15 days of receiving the letter. For income tax audits, this involves verifying the items of income, tax deductions, and tax credits declared on your tax return.