The IRS, or Internal Revenue Service, is the agency of the United States federal government responsible for administering and enforcing tax laws. It oversees the collection of federal 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 by collecting revenue. It offers various services, including assistance for taxpayers, online tools for filing taxes, and resources for understanding tax obligations. The agency aims to promote voluntary compliance and simplify the tax process for individuals and businesses.