The IRS, or Internal Revenue Service, is the agency of the United States government responsible for administering and enforcing federal tax laws. It collects taxes, processes tax returns, and issues refunds to taxpayers. The IRS also provides guidance on tax regulations and ensures compliance through audits and investigations. Established in 1862, the IRS plays a crucial role in funding government operations and public services. It operates under the Department of the Treasury and is tasked with educating taxpayers about their obligations. The IRS also offers various resources to help individuals and businesses understand their tax responsibilities.