ITC Calculator
Add up input credits from purchase invoices across CGST, SGST and IGST.
Enter credit from your purchase invoices to total your input tax credit.
How the calculation works
Input tax credit is the GST you paid on purchases. Total it by head first — the heads decide how flexibly you can spend it later.
- Per purchase
GST charged on the supplier's invoice = your credit - By head
Σ IGST credit; Σ CGST credit; Σ SGST credit - Total ITC
Sum of all three heads
Worked example
Purchases this month generated ₹6,000 IGST, ₹4,000 CGST and ₹4,000 SGST of credit.
You enter
You get
Important points to keep in mind
- Four checks before counting credit: tax invoice in hand, goods/services received, tax actually paid to government, and a valid return filed by the supplier.
- Blocked credits under Section 17(5) — canteen, club memberships, personal-use items — must be kept out.
- Capital goods' credit follows the same heads as their invoices.
Frequently asked questions
Which head of ITC is most valuable?
IGST credit — it can pay any liability. CGST pays CGST/IGST; SGST pays SGST/IGST only.
Can I claim ITC without a tax invoice?
A debit note, bill of entry or prescribed document works too — but some valid documentary evidence is always required.
What is ITC-04 or GSTR-2B got to do with it?
GSTR-2B is the auto-generated statement of credits suppliers reported for you — reconcile your books against it before claiming.
Related GST tools
Prepare your returns in GSTSelf
Done estimating? Prepare the actual return.
GSTSelf walks you through your invoices, builds GSTR-1 and GSTR-3B data, and keeps everything on your device — no uploads, no account.