Internal Revenue Service

Overview

The Internal Revenue Service (IRS) is the revenue service of the United States federal government, responsible for collecting taxes and enforcing the Internal Revenue Code. Established in 1862 during the Civil War as the Bureau of Internal Revenue, it was reorganized and renamed in 1952. The IRS operates as a bureau of the Department of the Treasury and is the largest of Treasury's bureaus, employing tens of thousands of staff and processing over 150 million individual tax returns annually.

While the IRS is primarily known as the nation's tax collection agency, it plays a substantial role in financial oversight and regulation that directly intersects with payments and money movement. The IRS enforces the Foreign Account Tax Compliance Act (FATCA), which requires foreign financial institutions worldwide to report accounts held by U.S. persons, creating a global financial transparency regime. It also administers the Bank Secrecy Act reporting of Currency Transaction Reports (CTRs) through its relationship with FinCEN, and enforces tax compliance for digital assets, payment processors, and money services businesses.

The IRS's information reporting framework — including Forms 1099-K (payment card and third-party network transactions), 1099-INT (interest income), 1099-DIV (dividends), and 1099-B (broker proceeds) — creates a comprehensive data collection system that tracks the movement of money through the U.S. financial system. This reporting infrastructure serves both tax compliance and broader financial transparency objectives.

Basic Identity

Classification

What This Entity Oversees

Regulatory Powers

Legal Foundation

Payments and Money Movement Relevance

The IRS is deeply intertwined with payments and money movement at every level. Its Form 1099-K reporting requirement mandates that payment settlement entities (including credit card processors, PayPal, Venmo, Cash App, and other third-party payment networks) report gross payment volumes processed for merchants and payees. Beginning with tax year 2024, the reporting threshold was lowered significantly, dramatically expanding the number of payment transactions visible to the IRS and creating new compliance obligations for payment platforms.

FATCA has transformed global financial services by requiring virtually every foreign financial institution to identify and report accounts held by U.S. persons, or face 30% withholding on U.S.-source payments. This has created a worldwide information-sharing infrastructure between the IRS and over 110 jurisdictions through intergovernmental agreements, directly affecting how cross-border payments are processed, accounts are opened, and due diligence is conducted. The IRS's expanding role in digital asset taxation — including requirements for crypto exchanges and brokers to report transactions on Form 1099-DA — places the agency at the center of the regulatory framework for cryptocurrency payments and transfers. Additionally, the IRS processes billions of dollars in tax refund payments annually through direct deposit (ACH) and paper checks, making it one of the largest originators of government payments in the United States.

Relationship to Other Regulators

Key Public Resources