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The Lucknow Bench of the Goods & Services Tax Appellate Tribunal (GSTAT) has held that a Rule 42 or Rule 43 input-tax-credit reversal cannot be calculated by applying the exempt-turnover ratio to a taxpayer’s entire ITC pool. The authority must first identify credit attributable exclusively to taxable, exempt, non-business or blocked use, remove those amounts, and apply the formula only to the residual common credit.
In Nitin Bakers Private Limited, reported as 2026 TAXSCAN (GSTAT) 253 on 23 October 2026, the demand was set aside and sent back for fresh adjudication because the record did not establish the company’s net ITC or the actual common-credit pool after reversals.
What did GSTAT decide in Nitin Bakers?
Nitin Bakers manufactures and sells bread, buns and rusk. The department’s show-cause notice alleged excess ITC, a GSTR-9 and GSTR-9C mismatch, and short reversal under Rules 42 and 43. Reports by Taxscan and CA Sansaar state that the Lucknow Bench rejected a mechanical approach that treated the entire ITC balance as common credit.
The tribunal’s practical holding is that “common credit” is a statutory residual category. Credit that can be attributed to a particular taxable, exempt, non-business or blocked use must be identified before any Rule 42 or Rule 43 ratio is applied. Because the available record did not prove the net position or the residual common pool, the matter required de novo verification rather than confirmation of the original demand.
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The accessible report does not disclose the complete appeal number, final-order number, coram or full operative text. Those identifiers should be checked against the tribunal’s order when relying on the decision in a proceeding.
Can GST demand Rule 42 or 43 reversal on the entire ITC?
No. The reported ruling says the department cannot apply the prescribed proportion to every rupee of ITC without first separating specific credit from genuine common credit.
Specific credit
Specific credit is attributable to an identified use. Depending on the records, that may be credit used exclusively for taxable or zero-rated supplies, exclusively for exempt supplies, exclusively for non-business purposes, or credit blocked under section 17(5). These amounts are dealt with separately in the Rule 42 working and are not automatically part of the common pool.
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Common credit is what remains after the rule’s exclusions and attribution steps. It is not a synonym for “total ITC” or for the balance appearing in a return. Only this residual amount is subjected to the exempt-turnover and non-business calculations.
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How does the Rule 42 calculation identify common credit?
CBIC’s Rule 42 text requires an invoice-level attribution sequence. The main stages are:
| Stage | Rule 42 term | What it represents |
|---|---|---|
| 1 | T | Total input tax for the relevant tax head. |
| 2 | T1 | Credit attributable exclusively to non-business use. |
| 3 | T2 | Credit attributable exclusively to exempt supplies. |
| 4 | T3 | Blocked credit under section 17(5). |
| 5 | C1 | C1 = T − (T1 + T2 + T3), after removing the preceding categories. |
| 6 | T4 | Credit attributable exclusively to taxable or zero-rated supplies. |
| 7 | C2 | C2 = C1 − T4; this residual is called common credit. |
CBIC’s statutory wording states: “Input tax credit left after attribution of input tax credit under clause (g) shall be called common credit, be denoted as ‘C2’ and calculated as: C2 = C1-T4.”
What is deducted from C2?
For inputs and input services, the exempt-supply component is D1 = (E ÷ F) × C2, where E is the aggregate value of exempt supplies and F is total turnover. Where common inputs or input services are used for business and non-business purposes, the rule provides D2 = 5% of C2. Eligible credit is then C3 = C2 − (D1 + D2).
The calculation must be performed separately for CGST, SGST, UTGST and IGST. A single blended figure can conceal differences in the credit and reversal reported under each tax head.
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How does Rule 43 treat common capital goods?
Rule 43 uses a different method for common capital goods. The rule spreads the capital-goods credit over a five-year useful life, or 60 months. Monthly credit is calculated as Tc ÷ 60, and the exempt-to-total-turnover ratio is applied to the residual common-credit amount for the applicable month.
Therefore, a Rule 43 working should identify the capital-goods invoice, determine whether the asset is exclusively taxable, exclusively exempt or common, record the month placed in use, and show the remaining months in the 60-month period. It should not simply copy the Rule 42 treatment for inputs and input services.
Why was the Nitin Bakers demand remanded?
The case-law summary says the department treated the entire ITC as common and did not give effect to reversals disclosed in the returns. That left unresolved whether the proposed amount was calculated on gross credit, net credit, or the residual C2 balance required by the rules.
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- GSTR-3B reversals already reported;
- the reconciliation between GSTR-9 and GSTR-9C;
- invoice-level attribution to taxable, exempt, non-business and blocked categories;
- sales ledgers and the exempt and total-turnover figures used for E and F; and
- accounting records supporting the claimed credit.
What should a taxpayer include in a Rule 42 or 43 notice response?
A defensible response should let the adjudicating officer trace every amount from the purchase record to the statutory formula. A practical sequence is:
- Freeze the period and tax heads. Prepare separate CGST, SGST, UTGST and IGST schedules for the period covered by the notice.
- Classify each invoice. Mark the business-use category, supply linkage, section 17(5) status and whether the credit is exclusive or common.
- Build the C1 bridge. Start with T and show each deduction for T1, T2 and T3.
- Remove T4. Identify credit exclusively attributable to taxable or zero-rated supplies and calculate the residual C2.
- Apply D1 and D2 only to C2. Show the E/F turnover ratio, the 5% non-business component where applicable, and the resulting C3.
- Reconcile reported reversals. Tie the schedule to GSTR-3B and explain every difference with GSTR-9 and GSTR-9C.
- Handle capital goods separately. For Rule 43 items, show the Tc ÷ 60 monthly amount and the months remaining in the useful-life period.
Do GSTR-9, GSTR-9C or portal mismatches prove excess ITC?
No mismatch, by itself, establishes the amount of Rule 42 or Rule 43 reversal. A return comparison may identify a reconciliation issue, but it does not show which invoices are specific credit, which are common credit, what turnover ratio applies, or which reversals were already made.
The tribunal’s approach places the burden on the calculation and supporting records: the department must establish the correct ITC base and statutory attribution before confirming a demand. A field-to-field difference should therefore be answered with an invoice, ledger and return reconciliation rather than accepted as the reversal amount.
What is the practical significance of the ruling?
The decision does not remove the Rule 42 or Rule 43 reversal obligation. It requires the obligation to be calculated in the order prescribed by the rules. For taxpayers, the immediate priority is maintaining an auditable bridge from gross ITC to C1, C2, D1, D2 and any capital-goods computation. For adjudicating authorities, a demand based only on the full ITC pool is vulnerable if it does not demonstrate the specific-credit exclusions and the resulting common-credit figure.
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Frequently Asked Questions
Does a remand mean Nitin Bakers has no tax liability?
No. Remand is a procedural result, not a final finding that no reversal is payable. The department may confirm an amount in fresh adjudication if its revised calculation is supported by the required attribution and reconciliation evidence.
How should an ITC spreadsheet distinguish specific and common credit?
Use one row per invoice or another traceable transaction unit, with columns for tax head, supplier document, supply linkage, section 17(5) status, business-use category, reversal already reported and the Rule 42 or Rule 43 bucket. The total of those rows should tie to the credit figures in the relevant returns.
Can a GSTR-9C difference be used as the reversal figure?
It can flag an issue for investigation, but it is not itself the Rule 42 or Rule 43 formula. The officer still has to establish the affected invoices, the correct C2 or capital-goods base and the applicable turnover proportion.
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It is the credit position after accounting for relevant exclusions and reversals, rather than an unchecked gross purchase-credit total. The Nitin Bakers dispute illustrates why the adjudication record must show how reported reversals affect the amount available for any further statutory calculation.
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