ITC Calculator (Input Tax Credit)
Estimate input tax credit by splitting amounts into claimable and blocked categories. Useful for planning and internal checks — validate the final claim with GST rules and your accounting workflow.
ITC can materially affect cash flow. This calculator is designed for quick “what-if” checks when you’re reviewing purchases and trying to estimate how much credit may be available vs blocked.
Need a GST inclusive/exclusive split first? Use the GST calculator.

How to use the ITC calculator
Add claimable and blocked amounts, then review totals.
1. Collect totals
Use your purchase data for the period you’re evaluating.
2. Categorize
Separate amounts into likely claimable vs blocked categories.
3. Review
Use the output for planning and internal checks before filing.
Where it helps
Claimable vs blocked ITC split
Separate inputs into claimable and blocked categories for a clearer view of potential credit.
Planning and internal checks
Use it for budgeting and sanity checks before finalizing returns in your accounting system.
Simple totals
Get an at-a-glance summary without building a spreadsheet from scratch.
Faster reviews
Quickly compare two scenarios (with/without a category) to see impact on net ITC.
Common pitfalls
Eligibility depends on rules
ITC eligibility depends on conditions and documentation. This tool is for planning; validate against GST rules and your records.
Blocked ITC categories
Some credits are blocked under certain cases. Make sure your categorization matches the scenario you’re evaluating.
Mismatch with return filings
Your final ITC claim is determined by your return and reconciliations. Use this as a calculation aid, not the source of truth.
Rounding and period boundaries
If you’re mixing periods or rounding per invoice, totals may differ slightly from accounting software outputs.
What this tool supports
| Feature | Supported | Notes |
|---|---|---|
| Claimable vs blocked breakdown | Yes | Helps organize the inputs. |
| Quick totals | Yes | Useful for planning and checks. |
| No signup required | Yes | Runs without an account. |
| Official filing | No | Use your accounting/return workflow for filing. |
Frequently Asked Questions
User reviews
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Want a quick ITC estimate?
Add claimable and blocked amounts to see the split instantly.

