GST Tax Liability Calculator
Output tax minus input credit — know what you owe in one number.
Enter output tax and ITC to see your net liability.
How the calculation works
Your headline liability is simply total output tax minus usable input credit. One number tells you whether cash leaves your account or credit carries forward.
- Output tax
CGST + SGST + IGST collected on sales - Input credit
Eligible CGST + SGST + IGST from purchases - Net liability
max(0, Output − ITC)
Worked example
You collected ₹45,000 in output tax and hold ₹52,000 of eligible credits.
You enter
You get
Important points to keep in mind
- Only credits meeting Section 16 conditions count — valid invoices, receipt of goods/services, and supplier compliance.
- Head-wise restrictions still apply even when the headline nets positive; use the utilisation tool for detail.
- Persistent excess credit usually means either heavy capex or blocked credits worth reviewing.
Frequently asked questions
Is liability the same as cash payable?
Not exactly. Liability is after netting ITC; cash payable further depends on which ledger heads your credits sit in. The net-payable tool bridges that gap.
What if my ITC exceeds output tax?
The surplus carries forward to future periods (or refunds in specific cases like exports/inverted duty).
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.