What CBIC has clarified
The Central Board of Indirect Taxes and Customs (CBIC) has settled seven long-running doubts about the Input Service Distributor (ISD) mechanism under GST. Circular No. 260/06/2026-GST, dated 26 October 2026, issued under Section 168(1) of the Central Goods and Services Tax Act, 2017 (CGST Act), explains how credit received by a head office or a similar establishment is to be passed on to the branches and units that actually use the input services. The circular is signed by Gaurav Singh, Commissioner (GST), GST Policy Wing, and is addressed to the Principal Chief Commissioners and Chief Commissioners, and the Principal Directors General and Directors General.
An ISD is not itself the final consumer of the services it receives. It is the office that receives invoices for input services — think of audit fees, software subscriptions, legal advice or head-office rent-related services — and then distributes the input tax credit (ITC) on those services to its distinct persons, that is, the other GST registrations of the same legal person in different States or Union Territories, or different business verticals, that actually use the services. Section 20 of the CGST Act governs that distribution, and Rule 39 of the CGST Rules, 2017 prescribes how it is to be done. Circular 260 does not rewrite those provisions. It clarifies how they work in situations that businesses kept asking about: multiple registrations, the split between eligible and ineligible credit, who reverses credit, what an ISD invoice really is, and how the same-PAN transfer of reverse-charge credit works.
💡 In one line: the ISD must pass credit only to the distinct person the service belongs to, in the month it is available, and the recipients — not the ISD — bear the eligibility checks and reversals; an ISD invoice is only a credit-transfer document, not a supply.
At a glance
1. More than one ISD registration is allowed — and sometimes required
The first clarification answers a structural question. A person may obtain more than one ISD registration — for example, one for each business vertical, or one for each place of business in a State or Union Territory. The circular goes further: where a registrant receives input-service invoices for distinct persons, that registrant must obtain ISD registration. In other words, multiple ISD registrations are not merely permitted as a matter of convenience; where the fact pattern calls for it, registration is the route the circular expects.
The discipline that sits behind that flexibility is attribution. Credit may be distributed only to the distinct person to whom it is attributable, under Section 20 read with Rule 39(1). An ISD cannot pool credit received for one unit and hand it to another unit that did not use the service. For a business with several verticals or several State registrations, that means the invoicing and attribution trail matters as much as the registration itself: the invoice must show whose service it is, and the distribution must follow that attribution.
2. Distribution follows Section 20 — and the consequences of getting it wrong are spelt out
The second clarification restates the division of responsibility in the ISD chain. The ISD distributes credit in accordance with Section 20. The recipients of that credit bear the eligibility conditions in Sections 16 and 17 — the general ITC conditions and the apportionment and blocking rules. That division matters when something goes wrong. If an ISD distributes credit irregularly, the ISD itself faces penalty under Section 122(1)(ix): Rs 10,000 or the tax evaded, or the ITC irregularly distributed, whichever is higher. Excess credit wrongly distributed is recoverable from the recipients, with interest, under Section 21, using the demand machinery in Sections 73, 74 and 74A.
The practical message is twofold. The ISD cannot treat distribution as a mere allocation exercise and leave eligibility to chance, because its own penalty exposure turns on the correctness of the distribution. And recipients cannot treat distributed credit as automatically usable, because recovery with interest can follow them if the distribution was excessive. Both ends of the chain need to check their own leg: the ISD, attribution and distribution; the recipient, eligibility.
3. Only credit the ISD has prima facie checked can be distributed — and it must go out in that month
The third clarification deals with timing and diligence. Credit becomes available for distribution only when the ISD has ascertained, prima facie, that it is eligible, after looking at the details in GSTR-6A. The ISD must then distribute it in that month, splitting eligible and ineligible credit in accordance with Rule 39(1)(g), with the details reported in GSTR-6.
This is an important discipline for monthly compliance. It stops two opposite errors: distributing credit before any eligibility check, and sitting on checked credit and distributing it later at convenience. The GSTR-6A check is described as prima facie — a first-level ascertainment, not a full adjudication of every recipient's final eligibility — but it is a check that must actually happen, and the distribution month is fixed by it. Businesses that run ISD distribution as a quarter-end clean-up exercise will need to move it into the monthly cycle.
4. The ISD distributes the entire available credit — recipients make the reversals
The fourth clarification removes a common double-counting trap. The ISD distributes the entire available credit to the attributable recipients. It does not hold back a portion for reversals. The reversals under Sections 17(1), 17(2) and 17(4) — for inputs used partly for exempt or non-business purposes, and for the other apportionment cases those sub-sections cover — are made by the recipients, under Rules 42 and 43, and Rule 38 where relevant. The circular's logic is consistent: the recipient knows how it used the service, so the recipient is the right person to reverse the portion that does not qualify.
For finance teams, this means the ISD return and the recipient returns must be read together. If the ISD trims credit before distribution on an assumption about a recipient's exempt turnover, and the recipient then reverses again, the same credit is lost twice. If neither side reverses, the credit is overstated. The circular assigns the job to one side only — the recipient — and businesses should align their standard operating procedures to that single assignment.
5. An ISD invoice is a credit-transfer document, not a supply
The fifth clarification is the one with the widest knock-on effects, because it touches three different computations at once. An invoice, credit note or debit note issued by an ISD under Rule 54(1A) is merely a document for transferring credit. It is not an outward supply by the ISD. Three consequences follow, and the circular states each of them expressly.
First, the amount in that document is excluded from the ISD's "turnover in a State or Union Territory" under Section 2(112) of the CGST Act. Second, it is excluded from the Section 20 and Rule 39 distribution computation itself — so the transfer document does not feed back into the amount to be distributed. Third, it is excluded from "adjusted total turnover" for refund purposes. The circular adds a practical caveat: the amount may still need to be declared in GSTR-1 so that it is transmitted to the ISD. That declaration is a transmission step, not a recharacterisation of the document as a supply.
Businesses that had been adding ISD document values into turnover-based ratios, thresholds or refund denominators should rework those workings. The circular's answer is categorical on this point: a transfer document moves credit; it does not create turnover.
6. Transferred credit is not "NET ITC" for refunds
The sixth clarification follows from the fifth and deals with refunds under Rules 89(4) and 89(5). Credit transferred through a Rule 54(1A) document is not ITC on an inward supply of the transferor. It is therefore not "NET ITC" for the purpose of those refund rules. This matters most for exporters and inverted-duty businesses that compute refunds from NET ITC: credit that arrived via an ISD transfer does not enter that numerator in the way that credit on their own inward supplies does.
Refund workings that simply added every credit-ledger entry into NET ITC will overstate the refund claim if they included ISD-transferred credit. The circular requires that line to be separated out. It is a computation clarification, but for a business with a large head-office ISD feeding several manufacturing or export units, the refund arithmetic can change materially.
7. Same-PAN, same-State reverse-charge credit goes to the ISD in full — with no reversal by the transferor
The seventh clarification deals with a specific fact pattern: a person with the same PAN in the same State transfers its entire reverse-charge (RCM) credit to the ISD. In that case, the transferor transfers the whole RCM credit to the ISD and makes no Section 17 reversals in that transferor capacity. The recipients make the reversals — including that same person, if it is also a recipient of distributed credit in its own right.
The distinction is one of capacity, not of person. The same legal person wears two hats: transferor of RCM credit to the ISD, and recipient of credit distributed by the ISD. As transferor, it transfers in full and reverses nothing. As recipient, it reverses like any other recipient. Keeping those capacities separate in the books and returns is the compliance point the circular is making.
Old position vs new clarification
It is worth being precise about what this circular is and is not. It is a clarification issued under Section 168(1). It does not amend Section 20, Rule 39 or Rule 89, and it does not create a new registration category. Its value is that it removes the interpretive doubts that were producing inconsistent filings — different businesses answering the same seven questions in different ways. Where a business's past filings took a different view, the circular gives it the Board's stated position to measure those filings against; whether any past period needs correction is a question for that business and its advisers, on the facts of each case.
Who is affected
The circular matters most to multi-State and multi-vertical businesses that centralise procurement of services at a head office: large companies, groups with shared-service centres, banks and financial institutions with branches across States, and any business that already holds, or should hold, an ISD registration. It also matters to their recipients — the branches and units that receive distributed credit and must now be clear that eligibility and reversals sit with them. Tax teams, GST compliance vendors and auditors who prepare GSTR-6, GSTR-6A reconciliations and refund workings under Rules 89(4) and 89(5) will need to update their checklists and computation templates to reflect the seven points above.
Businesses that do not use the ISD mechanism — for example, single-State businesses where the recipient of the service is also the registered person that received the invoice — are not directly affected, though the clarification on what counts as turnover and NET ITC is still useful background for anyone reading refund or turnover computations.
What to do next
First, check whether ISD registration is needed at all, and whether more than one registration fits the business's verticals or places of business. Second, move ISD distribution into the monthly cycle: check GSTR-6A, ascertain eligibility prima facie, split eligible and ineligible credit under Rule 39(1)(g), and distribute in that month through GSTR-6. Third, reassign reversals in internal procedures so that recipients, not the ISD, make the Sections 17(1), 17(2) and 17(4) reversals under Rules 42, 43 and 38. Fourth, strip Rule 54(1A) transfer-document values out of turnover, distribution and adjusted-total-turnover workings, while keeping any GSTR-1 declaration needed to transmit the amount to the ISD. Fifth, separate ISD-transferred credit from NET ITC in refund workings under Rules 89(4) and 89(5). Finally, for same-PAN, same-State RCM transfers, record the transferor and recipient capacities separately so that no reversal is made in the transferor capacity and the recipient-side reversal is not missed.
The circular also carries the usual administrative directions: it is to be given wide publicity by way of a trade notice, and any difficulty in its implementation is to be brought to the notice of the Board. Field formations are therefore expected to apply it consistently, which is the practical benefit of a Section 168 clarification — the same seven answers should now be given in every jurisdiction.
Frequently asked questions
Can a business have more than one ISD registration?
Yes. Circular 260 states that multiple ISD registrations are allowed per business vertical or place of business in a State or Union Territory, and that a registrant receiving input-service invoices for distinct persons must obtain ISD registration.
Who checks whether distributed credit is eligible?
The ISD ascertains eligibility prima facie from GSTR-6A details before distributing, and distributes in that month. The recipients bear the Sections 16 and 17 eligibility conditions, and they make the reversals.
Does the ISD keep back part of the credit for reversals?
No. The ISD distributes the entire available credit to the attributable recipients. Reversals under Sections 17(1), 17(2) and 17(4) are made by the recipients.
Is an ISD invoice a supply?
No. A Rule 54(1A) invoice, credit note or debit note is merely a credit-transfer document. Its amount is excluded from turnover in a State or Union Territory, from the Section 20 and Rule 39 distribution computation, and from adjusted total turnover for refunds.
Does ISD-transferred credit count as NET ITC for refunds?
No. Because it is not ITC on an inward supply of the transferor, Rule 54(1A) transferred credit is not NET ITC under Rules 89(4) and 89(5).
What happens if credit is distributed irregularly?
The ISD faces penalty under Section 122(1)(ix) — Rs 10,000 or the tax evaded or ITC irregularly distributed, whichever is higher — and excess credit is recoverable from the recipients with interest under Section 21, through Sections 73, 74 and 74A.
What about a same-PAN, same-State transfer of reverse-charge credit?
The transferor transfers its entire RCM credit to the ISD and makes no Section 17 reversals in that transferor capacity. Recipients make the reversals, including that person if it is also a recipient of distributed credit.
Sources
Primary source: CBIC Circular No. 260/06/2026-GST dated 26.10.2026 (F. No. CBIC-20001/2/2026-GST), official CBIC Tax Information Portal — https://taxinformation.cbic.gov.in/view-pdf/1003351/ENG/Circulars. Provisions discussed: Sections 2(61), 2(112), 16, 17, 20, 21, 25, 73, 74, 74A, 122(1)(ix) and 168(1), CGST Act, 2017; Rules 38, 39, 42, 43, 54(1A), 65 and 89, CGST Rules, 2017, as cited in the circular.
