GST registration, also known as Goods and Services Tax registration, is a mandatory process for businesses and individuals in many countries that have adopted the GST system. GST is a value-added tax that is levied on the supply of goods and services at each stage of the supply chain, from the manufacturer or service provider to the end consumer. GST registration is the process by which businesses and individuals are officially recognized as taxpayers by the tax authorities and are authorized to collect GST on their sales, claim input tax credits on their purchases, and file GST returns.