GSTIN Verification - Validate GST Number Format 2026

Positions 1-2: State Code (29 = Karnataka, 27 = Maharashtra)
Positions 3-12: PAN of business entity
Position 13: Entity number (1-9, A-Z)
Position 14: Default 'Z'
Position 15: Check digit

⚠️ General estimates only. Verify on gst.gov.in & consult CA. Full Disclaimer →

Verify GSTIN

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⚠️ Format check only. This verifies GSTIN structure, not active status. For official verification, check GST Portal.

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