Most of you would have received your 15 digit provisional ID or GSTIN (Goods and Services Tax Identification Number). Under GST, knowing your GSTIN format like the back of your hand is important. It will help you to ensure that your suppliers have quoted your GSTIN correctly in invoices to you, as your input credit is dependent on this. It will also help you to mention your GSTIN correctly in invoices to your customers, as their input credit is dependent on this.

This is a guide to the GSTIN format, which will make it easier for you to remember it.
structure-gstin

Explanation

1st 2 digits: This is the state code as per the Indian Census, 2011, as given below:

State codeStateState codeState
01Jammu & Kashmir19West Bengal
02Himachal Pradesh20Jharkhand
03Punjab21Orissa
04Chandigarh22Chhattisgarh
05Uttarakhand23Madhya Pradesh
06Haryana24Gujarat
07Delhi25Daman & Diu
08Rajasthan26Dadra & Nagar Haveli
09Uttar Pradesh27Maharashtra
10Bihar28Andhra Pradesh
11Sikkim29Karnataka
12Arunachal Pradesh30Goa
13Nagaland31Lakshadweep
14Manipur32Kerala
15Mizoram33Tamil Nadu
16Tripura34Puducherry
17Meghalaya35Andaman & Nicobar Islands
18Assam36Telengana
37Andrapradesh(New)

 

Next 10 digits: This is the PAN of the business entity.

13th digit: This denotes the serial number of registrations the business entity has for business verticals in the state, under the same PAN. It can range from 1-9 for businesses with upto 9 business vertical registrations in the state and for more than 9 registrations, from A-Z. For example, when a business entity gets GSTIN for its 3rd business vertical in the state, this will be 3. When a business entity gets GSTIN for its 13th business vertical in the state, this will be D.

14th digit: This will be ‘Z’ by default.

15th digit: This digit denotes ‘checksum’

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