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Tool 05 · Indirect tax

GST toolkit

Two questions we get every week, answered by tools: which tax applies to this supply — and in what order do I use my input tax credit?

A · Applicability

IGST — or CGST + SGST?

Usually where goods are delivered / the recipient's location for B2B services — see the quick reference below for exceptions.
Place of supply — quick reference (S.10–13 IGST Act)
Goods with movement: where movement terminates for delivery. Bill-to / ship-to: deemed supplied to the person who ordered (the "bill-to" party). Immovable-property services (architects, hotels, works contracts): location of the property. Admission to events: where the event is held. Passenger transport: where the passenger embarks. Goods transport (domestic): registered recipient's location. B2B services generally: location of the recipient; B2C: supplier's location where address isn't on record. OIDAR / online services from abroad: recipient's location, supplier or intermediary liable.
Rates after GST 2.0 (from 22-Sep-2025)
The rate structure was rationalised to two principal slabs — 5% and 18% — with a 40% demerit rate on specified goods (and legacy rates on a few items like precious metals). Classification still decides the rate; check the current notification for your HSN/SAC or ask us.

B · Set-off

ITC utilisation sequence simulator

Enter this month's credits and liabilities — the simulator applies S.49(5), S.49A & S.49B read with Rule 88A, allocating the flexible IGST balance to minimise cash payment.

Input tax credit available (₹)

Output tax liability (₹)

Reverse-charge liability must always be paid in cash — don't include it above.

The order matters

IGST credit must be fully used first (against IGST, then CGST/SGST in any order). CGST credit can never pay SGST, and SGST credit reaches IGST only after CGST credit is exhausted. The simulator shows the step-by-step allocation, the cash payable under each head, and the ITC you carry forward.

Reconciling IMS every month is the new normal.

Our GST desk runs 2B/IMS reconciliation, returns and notices — so locked credits never surprise you.

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