What is the primary function of the Internal Revenue Service (IRS)?

The primary function of the Internal Revenue Service (IRS) is to administer and enforce federal tax laws. This encompasses a variety of responsibilities, including the collection of federal taxes, processing tax returns, and ensuring compliance with tax regulations. The IRS plays a crucial role in managing revenue for the federal government, which is essential for funding public services and government operations.

By enforcing tax laws, the IRS ensures that all individuals and businesses meet their tax obligations, thereby contributing to the overall financial health of the nation. This includes conducting audits to verify compliance, providing guidance on filing and tax deductions, and facilitating the effective collection of taxes owed to the government.

In contrast, overseeing national defense, maintaining public schools, and regulating trade agreements are responsibilities that fall to other governmental agencies. The Department of Defense handles national security matters, education departments manage public schooling, and trade representatives or commerce agencies deal with international trade agreements. Each of these functions is distinct from the fiscal responsibilities of the IRS, highlighting the agency's unique and essential role in managing the nation’s taxation system.