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IGST Credit
Generally the most flexible credit head. Must be used against IGST liability first, then CGST/SGST as permitted.
CGST Credit
Generally used against output CGST first, then IGST. Cannot be used to offset SGST liability.
SGST Credit
Generally used against output SGST first, then IGST. Cannot be used to offset CGST liability.
What is ITC set-off under GST?
ITC set-off is the process of adjusting eligible input tax credit (tax paid on purchases) against output tax liability (tax collected on sales). This mechanism ensures that tax is only paid on the "value added" at each stage, preventing cascading taxes.
Under the GST payment workflow, the system first exhausts available credits in a specific order. Only the remaining liability after full credit utilization is required to be paid in cash through the Electronic Cash Ledger.
Utilization Order Table
| Credit Type | First use | Then Use | Cannot Use For |
|---|---|---|---|
| IGST ITC | Output IGST | CGST / SGST as permitted | Verify portal logic |
| CGST ITC | Output CGST | Output IGST | Output SGST/UTGST |
| SGST ITC | Output SGST | Output IGST | Output CGST |
IGST Rules
IGST credit is usually adjusted first against output IGST liability. If balance remains, it may be used against output CGST and SGST/UTGST as permitted by applicable rules and portal workflow. Verify the current return-period logic before final filing.
CGST Rules
CGST credit is generally used against output CGST liability first. Any balance may then be used against IGST liability. Crucially, CGST credit cannot be used against output SGST.
SGST Rules
SGST credit is generally used against output SGST liability first. Any balance may then be used against IGST liability. Crucially, SGST credit cannot be used against output CGST.
Illustrative Set-Off Example
A. Output Liability
B. Eligible ITC
Set-Off Result Flow:
This example is purely illustrative. Final set-off depends on eligible ITC, return-period rules, ledger balances, and GST portal workflow.
GSTR-3B Payment Workflow
ITC Eligibility vs Set-Off
A critical distinction in GST compliance is between ITC Eligibilityand ITC Set-Off. Eligibility determines if you can claim the credit at all, based on factors like business use, GSTR-2B reflection, and non-blocked status.
Set-off should be reviewed only after eligibility is checked. Using blocked or ineligible credits, such as personal/non-business expenses or other restricted credits, can create reversal, interest, reconciliation, or follow-up issues.
Common ITC Set-off Mistakes
Frequently asked questions
What are ITC set-off rules under GST?
ITC set-off rules define the order in which Input Tax Credit (IGST, CGST, SGST) must be adjusted against output tax liability before any remaining liability is paid in cash through GSTR-3B.
What is the order of ITC utilization under GST?
Generally, IGST credit is used first against IGST and then against CGST/SGST as permitted by the applicable GST workflow. CGST credit is generally used for CGST and then IGST, while SGST/UTGST credit is generally used for SGST/UTGST and then IGST. Verify the GST portal workflow before filing.
Can IGST credit be used for CGST and SGST?
Yes, remaining IGST credit may generally be used against CGST and SGST/UTGST liabilities as permitted by applicable rules and portal workflow. Verify the current utilization logic before final filing.
Can CGST credit be used for SGST?
No. CGST credit cannot be used to pay SGST liability, and SGST credit cannot be used to pay CGST liability.
Can SGST credit be used for CGST?
No. There is no cross-utilization permitted between CGST and SGST credits under the GST framework.
Is GSTR-2B credit automatically eligible for set-off?
No. GSTR-2B helps review credit reflected from supplier filings, but final ITC eligibility depends on invoice validity, receipt of goods/services, business use, blocked-credit restrictions, reversals, and applicable GST conditions.
What happens if I use wrong ITC set-off?
Wrong set-off may create incorrect cash payment estimates, GSTR-3B reconciliation issues, or follow-up checks if credit is used against a tax head where it is not permitted.
Can RCM liability be paid using ITC?
RCM liability generally requires cash payment at the liability stage through the Electronic Cash Ledger. Eligible RCM-related ITC, if allowed, should be handled separately as per GST rules and portal workflow.
Where is ITC set-off shown in GSTR-3B?
ITC utilization and payment details are generally reflected in the payment section of GSTR-3B, where credit ledger, cash ledger, and cash payable values are reviewed before filing.
Is this page an official GST tool?
No. TheGSTCalculator.in is an educational platform. All set-off calculations and filing should be verified on the official GST portal.
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Adjust your credits and estimate cash payable before filing on the GST portal.
Sources & Methodology
This guide is based on practical GST input tax credit utilization rules and the practical GSTR-3B payment workflow. It is designed to assist users in understanding how credit offsets work. Final filing calculations must be verified on the officialGST Portaland in accordance with CBIC guidelines.
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