When someone mentions GST Registration, they are referring to the procedure by which a taxpayer can register with the GST Council as a taxpayer using the official government-run portal dedicated to the tax regime. When a taxpayer completes the GST Registration procedure, they will be given a Goods and Service Tax Identification Number (GSTIN). The Central Government issues this 15-digit GSTIN to assist them in determining whether or not a business is required to pay GST.