Daman & Diu — GST State Code 25
Union Territory · every Daman & Diu GSTIN begins with 25
Reading a Daman & Diu GSTIN
25AAAAA0000A1Z5
The first two digits (25) are the state code, the next ten the business's PAN, the 13th the entity number, and the 15th a checksum. Verify any number instantly with the GSTIN validator.
CGST + UTGST or IGST?
Selling within Daman & Diu — seller and place of supply both under code 25 — splits the GST equally into CGST and UTGST: an 18% supply becomes 9% + 9%. Selling from Daman & Diu to any other code (or buying in from one) makes it an interstate supply with a single IGST line at the full rate. Your customer's GSTIN prefix is the quickest way to know which applies.
GST in Daman & Diu
GST state code 25 (Daman & Diu) was retired when the union territory merged with Dadra & Nagar Haveli in 2020. Businesses migrated to code 26 GSTINs — old invoices and GSTINs bearing 25 remain historically valid, but new registrations use the merged territory's code.
Frequently asked questions
Related tools & guides
Billing customers in Daman & Diu?
Invodo applies CGST/SGST or IGST automatically from the place of supply — no more prefix-checking by hand. Start free.