Key Takeaways An IRS summons is a legally binding order to appear, testify, or produce documents — ignoring it can result in contempt of court You have the right to challenge a summons by filing a motion to quash in federal court The Fifth Amendment protects you from providing testimony that could incriminate you in a IRS investigation confidentiality protections may protect communications with your tax professional from disclosure Third-party summons (issued to your bank, employer, or accountant) have special notice and challenge rights What Is an IRS Summons? An IRS summons is a legal process authorized by IRC § 7602 that allows the IRS to compel any person to appear, give testimony, and produce books, papers, records, or other data relevant to an IRS investigation. The summons power is one of the IRS's most significant enforcement tools, and understanding how it works is essential for anyone under examination or investigation. The IRS can issue a summons to the taxpayer being investigated (a "first-party summons") or to third parties who may have relevant information — banks, employers, business partners, accountants, or financial institutions (a "third-party summons"). Types of IRS Summons First-Party Summons A first-party summons is issued directly to the taxpayer or their representative. It typically demands production of financial records, bank statements, receipts, or other documentation relevant to the tax examination. First-party summonses may also require the taxpayer to appear and give testimony under oath. Third-Party Summons When the IRS issues a summons to a third party (your bank, employer, or accountant), it must generally provide you with notice at least 23 days before the scheduled examination date. This notice gives you the opportunity to challenge the summons before the third party complies. Third-party summonses are common in both civil and IRS investigations. John Doe Summons A John Doe...