Tax authorities are government agencies responsible for collecting taxes and enforcing tax laws. They ensure that individuals and businesses comply with tax regulations, which helps fund public services like education, healthcare, and infrastructure. Each country has its own tax authority, such as the Internal Revenue Service (IRS) in the United States or HM Revenue and Customs (HMRC) in the United Kingdom. These agencies also provide guidance on tax obligations, conduct audits, and handle disputes between taxpayers and the government. By maintaining a fair tax system, tax authorities play a crucial role in promoting economic stability and growth within their jurisdictions.