Indirect Tax Laws · Input Tax Credit

Matching, Utilisation and Documentation of ITC

Updated 5 October 2026 · Fact-checked

This topic covers how input tax credit sits in your electronic credit ledger, how it must be used, and what proof you need. IGST credit is used first for IGST, then the balance for CGST and SGST/UTGST in any order and proportion. CGST and SGST credit never cross-pay each other. Claim only what appears in GSTR-2B, hold valid documents, and expect recovery if you claim wrongly.

Understand Matching, Utilisation and Documentation of ITC

Getting ITC is only half the job. You must also claim it correctly, prove it, and use it in the permitted order. Examiners test all three in one case.

Credit you claim in GSTR-3B is credited to the electronic credit ledger. You can use that ledger only to pay tax (output tax liability). You cannot use it to pay interest, penalty, late fee or any other amount. Those must be paid from the electronic cash ledger.

There are three kinds of credit: IGST, CGST and SGST/UTGST. The law fixes which credit can pay which tax. IGST credit is the most flexible. Under Rule 88A it is used first for IGST. Any balance may then be applied towards CGST and SGST/UTGST in any order and in any proportion. CGST credit pays CGST first, then IGST. SGST/UTGST credit pays SGST/UTGST first, then IGST. CGST credit can never pay SGST, and SGST credit can never pay CGST. Also, CGST or SGST credit can be used for IGST only after your IGST credit is fully exhausted.

To claim credit you need a valid document (Rule 36), such as a tax invoice, a debit note, a bill of entry, an ISD invoice or credit distribution document, or, for reverse charge, your own invoice with proof of payment of tax. The supplier's details must also appear in your GSTR-2B, the auto-drafted statement. Under section 16(2)(aa), credit is allowed only if the details of the invoice or debit note have been furnished by the supplier and communicated to you. This is why reconciling GSTR-2B with your books matters every month.

If you claim or use credit wrongly, the department can recover it with interest and penalty through a demand notice. It can also block your ledger (Rule 86A) or restrict how much of your credit ledger you may use in a month to discharge output tax liability (Rule 86B). Rule 86B limits only the use of the credit ledger for output tax. It does not stop you from claiming the credit.

Key rules to remember

Use of IGST credit: IGST credit → IGST first → balance to CGST and SGST/UTGST in any order and any proportion; Rule 88A governs this. IGST credit is used fully for IGST before CGST or SGST credit is used for any IGST payment. The balance may go to CGST and SGST/UTGST in any order and proportion. Applying it to CGST first is only a working convention.
Use of CGST credit: CGST credit → CGST first → then IGST; Never against SGST/UTGST. Use for IGST only after IGST credit is exhausted.
Use of SGST/UTGST credit: SGST/UTGST credit → SGST/UTGST first → then IGST; Never against CGST. Use for IGST only after IGST credit is exhausted.
What the credit ledger can pay: Credit ledger → output tax only; Cash ledger → tax, interest, penalty, fee, late fee; Interest and penalty can never be paid from ITC.
Rule 86B limit: Minimum cash payment = 1% of the output tax liability (credit ledger can discharge at most 99% of that output tax liability); The ₹50 lakh test is applied to the month's value of taxable supplies other than exempt supplies and zero-rated supplies. If it is exceeded, the restriction applies to using the credit ledger to discharge output tax liability only. It does not affect other payments, which are made in cash anyway. Exceptions apply (see steps).
Matching condition: ITC claimed in GSTR-3B ≤ ITC shown in GSTR-2B (eligible items only); Section 16(2)(aa). Even a valid invoice does not give credit until the supplier reports it.
Interest on wrongly availed and utilised ITC: 24% per annum, from the date of utilisation (section 50(3)); Wrongly availed but unutilised credit is reversed from the ledger without this interest. Interest depends on utilisation.
Payment to supplier: Not paid to supplier within 180 days from invoice date → reverse ITC with interest (Rule 37); Re-claim when you pay. Does not apply to reverse-charge supplies.

How to solve Matching, Utilisation and Documentation of ITC questions

Use this order for any question on utilisation, documents, reconciliation or recovery of ITC.

1Identify the stage the question tests: eligibility and documents, matching with GSTR-2B, order of utilisation, restriction on use, or recovery.
2Check the document: is there a valid tax invoice, debit note, bill of entry or ISD document? For reverse charge, is there an invoice raised by you and proof of payment of tax?
3Check matching: is the credit in GSTR-2B? If it is not, do not claim it in that month. Claim it when it appears, subject to the time limit in section 16(4).
4Remove ineligible items such as blocked credits, goods not received, and invoices unpaid beyond 180 days. Compute the net eligible credit.
5Utilise in the legal order under Rule 88A. Pay IGST output with IGST credit first, and use CGST and SGST credit for IGST only if IGST credit is short. Apply any IGST balance to CGST and SGST/UTGST in any order and proportion, and state the split you choose. Pay the remaining liability in cash.
6Test Rule 86B: if the month's value of taxable supplies (excluding exempt and zero-rated supplies) exceeds ₹50 lakh and no exception applies, the credit ledger can discharge at most 99% of the output tax liability. Keep at least 1% for payment in cash.
7For wrong claims, state the recovery route: reversal with interest, demand under section 73/74 (for periods up to FY 2023-24) or section 74A (from FY 2024-25), and possible blocking under Rule 86A.
8Write the answer as provision, facts, conclusion, with a number in rupees.

Quickest way: Four-column ITC table

When to use it: For numerical questions on utilisation or reconciliation where time is short.

Draw three rows (IGST, CGST, SGST) and two columns (credit available, liability).
Set off IGST credit against IGST liability first. Carry the balance IGST credit forward.
Set off CGST credit against CGST liability and SGST credit against SGST liability. Then use the IGST balance against the CGST and SGST liability left. Rule 88A allows any order and proportion, so state your choice (for example, CGST first).
Add the unpaid balances. That total is the cash payment. The total cash payable is unchanged by how the IGST balance is applied, but the CGST and SGST split of the cash depends on the order you choose.
For reconciliation, sort differences into three buckets: in books only (do not claim now), in 2B only (check receipt and eligibility), and matched (claim). Claim only the matched and eligible bucket.

Common mistakes in Matching, Utilisation and Documentation of ITC

Using SGST credit to pay CGST liability, or the reverse.
Students assume both are 'State plus Centre' taxes and therefore interchangeable.
Fix: Remember the crossing rule: CGST and SGST credit pay only their own tax or IGST. They never pay each other.
Using CGST or SGST credit for IGST before exhausting IGST credit.
Students follow 'own tax first, then IGST' and forget that IGST credit must be used first.
Fix: For IGST payment, first use IGST credit. Only then use CGST or SGST credit.
Stating that the IGST credit balance must go to CGST first and then SGST, or not stating how it was split.
Students memorise a fixed order and forget that Rule 88A leaves the order open.
Fix: Rule 88A lets the balance IGST credit be applied to CGST and SGST/UTGST in any order and in any proportion. State the order you adopt and show the CGST and SGST cash figures that result. Total cash does not change.
Paying interest or late fee from the electronic credit ledger.
Students treat ITC as general money in the ledger.
Fix: The credit ledger pays tax only. Interest, penalty, fee and late fee need cash.
Claiming credit on a valid invoice that does not appear in GSTR-2B.
Students focus on having the invoice and forget the matching condition.
Fix: Claim only what is in GSTR-2B (and eligible). Follow up with the supplier and claim when it appears.
Applying Rule 86B to all supplies or ignoring its exceptions.
The 99% figure is remembered without the conditions.
Fix: Check the ₹50 lakh monthly test on the value of taxable supplies other than exempt and zero-rated supplies, and then the exceptions. Remember that the 99% cap applies only to using the credit ledger to discharge output tax liability. The restriction does not apply if any of these is met: income tax paid of more than ₹1 lakh in each of the two financial years preceding the current one; refund sanctioned above ₹1 lakh in the preceding financial year on account of unutilised ITC from zero-rated supplies or inverted duty structure; or cumulative cash payment of at least 1% of total output tax liability up to that month in the current financial year. Separately, under a distinct proviso, Government departments, PSUs, local authorities and statutory bodies are not covered by the rule.
Charging interest on all wrongly availed ITC from the date of claim.
Students link interest to the claim and not to utilisation.
Fix: Under section 50(3), interest at 24% applies on credit wrongly availed and utilised, from the date of utilisation. Credit that is not yet utilised is just reversed.

Worked examples

Example 1

Case: For a month, Veda Traders has output liability of IGST ₹50,000, CGST ₹80,000 and SGST ₹80,000. Its credit ledger shows IGST ₹1,00,000, CGST ₹20,000 and SGST ₹30,000. Show the utilisation and the cash payable. Rule 86B does not apply.

Show the solution

Step 1: IGST liability ₹50,000 is paid first from IGST credit. IGST credit left: ₹1,00,000 − ₹50,000 = ₹50,000.
Step 2: CGST liability ₹80,000. Use own CGST credit ₹20,000. The balance is ₹60,000.
Step 3: SGST liability ₹80,000. Use own SGST credit ₹30,000. The balance is ₹50,000.
Step 4: Apply the IGST balance ₹50,000 to CGST and SGST. Rule 88A allows any order and any proportion. For this working, apply it to CGST first (a choice, not a requirement). CGST balance: ₹60,000 − ₹50,000 = ₹10,000. No IGST credit is left for SGST.
Step 5: Remaining CGST = ₹10,000. Remaining SGST = ₹50,000. Both are paid in cash. (If the IGST balance were applied to SGST first, SGST would be nil and CGST would be ₹60,000 in cash.)
Step 6: Total cash = ₹10,000 + ₹50,000 = ₹60,000. Check: total liability ₹2,10,000 − total credit ₹1,50,000 = ₹60,000.

Answer: Total cash payable is ₹60,000, whichever order is chosen. With the IGST balance of ₹50,000 applied to CGST first, the cash is CGST ₹10,000 and SGST ₹50,000. IGST credit is used first for IGST, and Rule 88A allows the balance to be applied to CGST and SGST in any order and proportion.

Example 2

Case: In a month, Orion Ltd's books show ITC of ₹8,40,000. GSTR-2B shows ₹7,50,000. Differences: (a) Supplier A's invoice with tax ₹60,000 is in the books but not in 2B because A has not yet filed GSTR-1. (b) Supplier C's invoice with tax ₹50,000 is in the books but not in 2B because C reports it next month. (c) 2B includes Supplier B's invoice with tax ₹20,000, but the goods were never received. Assume the matched credit is otherwise eligible, with no blocked credit or other ineligible items. Compute the ITC Orion Ltd may claim in GSTR-3B this month and explain each item.

Show the solution

Step 1: Books-only items = ₹60,000 + ₹50,000 = ₹1,10,000.
Step 2: Matched amount = books ₹8,40,000 − ₹1,10,000 = ₹7,30,000. We assume this amount is otherwise eligible, with no blocked or ineligible items in it.
Step 3: Check against 2B: matched ₹7,30,000 + B's ₹20,000 = ₹7,50,000, which agrees with GSTR-2B.
Step 4: Item (a) and (b). Under section 16(2)(aa), credit needs the supplier's details to be communicated in GSTR-2B. Do not claim now. Claim in the month they appear, within the section 16(4) time limit.
Step 5: Item (c). Section 16(2)(b) requires receipt of goods or services. Appearing in 2B does not make it eligible. Do not claim ₹20,000. Ask B to cancel the invoice or issue a credit note.
Step 6: Claim only the matched, eligible amount of ₹7,30,000, supported by valid Rule 36 documents.

Answer: Orion Ltd may claim ₹7,30,000, on the assumption that this matched amount has no blocked or ineligible credit. It must hold back ₹1,10,000 until the suppliers report the invoices, and it must not claim the ₹20,000 for goods not received.

Exam tips

In a numerical question, write the order of utilisation in one line first, then draw the table. Marks go for the order as well as the answer.
Put 'electronic credit ledger pays tax only' in every answer where a taxpayer tries to pay interest or penalty from ITC.
For Rule 86B questions, check the ₹50 lakh limit on supplies excluding exempt and zero-rated supplies and then the exceptions before applying the 99% cap.
For case-scenario MCQs, the trap is usually one of three: GSTR-2B mismatch, goods not received, or credit used across CGST and SGST. Check these first.
In recovery answers, name the route (reversal, demand under section 73/74 or 74A, Rule 86A blocking), mention interest depends on utilisation, and state a conclusion.

Practice questions from Input Tax Credit

Matching, Utilisation and Documentation of ITC in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Matching, Utilisation and Documentation of ITC: frequently asked questions

Can I use CGST credit to pay SGST?

No. CGST credit can pay only CGST and then IGST. SGST/UTGST credit can pay only SGST/UTGST and then IGST. They never pay each other.

In what order is IGST credit used?

Under Rule 88A, IGST credit is used first for IGST. Any balance may be applied to CGST and SGST/UTGST in any order and in any proportion. CGST or SGST credit can be used for IGST only after IGST credit is exhausted.

What does Rule 86B restrict?

When the month's value of your taxable supplies (excluding exempt and zero-rated supplies) exceeds ₹50 lakh, you cannot use the credit ledger to discharge more than 99% of your output tax liability. At least 1% must be paid in cash. The rule restricts only the use of the credit ledger for output tax. The restriction does not apply if you paid income tax above ₹1 lakh in each of the two preceding financial years, or were sanctioned a refund above ₹1 lakh in the preceding financial year on account of zero-rated supplies or inverted duty structure, or have paid in cash a cumulative amount of at least 1% of total output tax liability up to that month in the current financial year.

Can I claim ITC if the invoice is not in GSTR-2B?

No. Section 16(2)(aa) allows credit only if the supplier's details are furnished and communicated to you. Hold the credit until it appears in a later GSTR-2B, and claim within the section 16(4) time limit.

How is wrongly availed ITC recovered?

You reverse the credit. If it is not reversed, the officer issues a notice and demand under section 73 or 74 for periods up to FY 2023-24 and section 74A from FY 2024-25. Interest at 24% under section 50(3) applies when the wrongly availed credit has also been utilised. Penalty may also apply.