GST Number Explained! Most people don’t realise it, but a single GST number can reveal a lot about any registered business in India - and the funny part is, it’s printed everywhere: bills, boards, websites, even shop entrances. A GSTIN is a 15-digit ID that becomes mandatory once a service business crosses ₹20 lakh in turnover or a product business crosses ₹40 lakh. But those 15 digits aren’t random, every part of that number tells a story: - The first two digits show the state code (like 07 for

GST number format: The first two digits represent the state code. Digits 3-12 represent the PAN of the entity. 13th digit is based on the number of business registrations a legal entity (having the same PAN) within one State. The 13th digit is based on the number of business registrations of a legal entity (having the same PAN) within one State. The 14th Digit is kept blank for future use with “Z” assigned to it. The last digit of the GST number is “Check Digit” to identify the correct GST Numbe