Live demo · real engine, sample data

Spot the supplier GSTINs putting your input-tax credit at risk

Drop in your purchase register — Taficon validates every supplier GSTIN against the official checksum, groups your credit by vendor, and flags the suppliers whose GSTIN doesn't check out before you claim their ITC. Watch it run 👇

purchase-register.xlsx
7 invoices
placeholder
Vendors
0
in register
Invalid GSTINs
0
fail checksum
ITC at invalid GSTINs
₹0
credit exposed
Invoices
0
checked
Structurally invalid GSTIN — your ITC here is at risk
27AAPFU0939F1ZXMaharashtra₹63,000
27AAACR5055K1Z0Maharashtra₹16,200

Structural + checksum validation only — live filing status needs a GST-portal connection (coming soon).

Check your vendors — free Reconcile your 2B too

Files never leave your browser. Math is deterministic — re-run it, get the same answer.

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