GST (Goods and Services Tax) is a unified tax system introduced to simplify indirect taxation in India. It is mandatory for businesses that cross a certain turnover threshold or engage in interstate sales, e-commerce, or specific services. GST replaces multiple taxes like VAT, service tax, and excise duty, making compliance easier and more transparent. Businesses registered under GST receive a unique GSTIN, which is required for issuing invoices and claiming input tax credit on purchases.

The GST registration process is completely online and involves submitting details such as PAN, Aadhaar, business proof, and bank information on the GST portal. After verification, the GSTIN is issued, allowing businesses to operate legally across India. One of the biggest advantages of GST is the input tax credit mechanism, which reduces the overall tax burden. However, businesses must ensure timely return filing and accurate documentation to avoid penalties and maintain compliance.