Tax law refers to the legal rules and regulations that govern how taxes are collected, assessed, and enforced by government authorities. It encompasses various types of taxes, including income tax, property tax, and sales tax, and outlines the obligations of individuals and businesses to report their income and pay taxes accordingly. Tax law is essential for funding public services and infrastructure, such as education, healthcare, and transportation. It is enforced by agencies like the Internal Revenue Service (IRS) in the United States, which ensures compliance and addresses tax-related disputes.