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HomeTaxationGST UpdatesGST Input Service Distributor (ISD): Key Clarifications on Registration and ITC Distribution...

GST Input Service Distributor (ISD): Key Clarifications on Registration and ITC Distribution CBIC Circular No. 260/06/2026-GST dated 26 October 2026

Businesses operating through multiple offices, branches or distinct persons often receive common input service invoices at one location even though the services relate to more than one GST registration. The Input Service Distributor (ISD) mechanism provides a framework for distributing eligible input tax credit to the relevant registrations.

This article explains the key clarifications contained in the text provided for CBIC Circular No. 260/06/2026-GST dated 26 October 2026, covering ISD registration, distribution of input tax credit (ITC), GSTR-6, recipient-side reversals and the treatment of credit-transfer documents under Rule 54(1A).

Important: This article is based on the circular text supplied for preparation. Verify the official publication, applicable statutory provisions and any subsequent amendments before applying these clarifications to a business.

Table of Contents

1. Can a Business Have More Than One ISD Registration?

According to the supplied circular text, a business may obtain more than one ISD registration for different business verticals or places of business within the same State or Union Territory, where the relevant requirements are met.

Where invoices for input services are received for different distinct persons and the business is required to distribute the related credit through the ISD mechanism, the relevant registration should obtain ISD registration as applicable.

Each ISD registration should distribute only the credit attributable to the relevant recipient or distinct person in accordance with the applicable provisions.

Practical example

A company has three GST registrations in the same State. One office receives common service invoices relating to the other registrations as well as its own operations.

The business should identify the relevant input service invoices, determine which registrations benefit from those services and distribute the eligible credit through the appropriate ISD registration in accordance with the law.

The objective is to ensure that credit is allocated to the correct recipient rather than being retained or distributed without a proper basis.

2. Distribution of ITC and Responsibility of Recipients

The ISD must distribute input tax credit in accordance with Section 20 of the CGST Act and the applicable rules.

However, distribution by the ISD does not automatically establish that the recipient is entitled to claim the credit. The recipient registration remains responsible for examining whether the ITC satisfies the applicable eligibility conditions, including Sections 16 and 17 of the CGST Act.

The supplied circular text also refers to the consequences of improper distribution:

  • The ISD may face a penalty under Section 122(1)(ix), where the relevant legal conditions are satisfied.
  • Excess credit distributed may be recoverable from the recipient under Section 21, along with applicable interest, as provided by law.

Key takeaway: Correct distribution by the ISD and correct availment by the recipient are two separate compliance responsibilities.

3. When Is ITC Considered Available for Distribution?

The supplied circular text explains the expression “credit available for distribution in a month” in the context of Rule 39(1)(a).

As described in the supplied text, where the relevant invoices appear in GSTR-6A and the ISD has ascertained that the credit is prima facie eligible for distribution, the credit should be distributed in the relevant month in accordance with the applicable rules.

The ISD must also distinguish between eligible and ineligible credit and distribute them separately as required under Rule 39(1)(g). The relevant details must be reported in Form GSTR-6.

Practical steps for the ISD

  1. Review the relevant invoices and the details appearing in GSTR-6A.
  2. Identify the services to which each invoice relates.
  3. Check whether the credit is prima facie eligible for distribution.
  4. Identify the relevant recipient registrations.
  5. Distribute eligible and ineligible credit separately, as required.
  6. Report the distribution correctly in Form GSTR-6.

The business should maintain supporting records showing the basis of allocation and the registrations to which the credit has been distributed.

4. Who Must Make ITC Reversals Under Section 17?

Where an input service is used partly for business and partly for non-business purposes, or for taxable and exempt supplies, the relevant ITC reversal provisions may apply.

According to the supplied circular text, the responsibility for making the applicable reversals under Section 17(1) or Section 17(2), read with Rules 42 and 43, rests with the recipient registration.

Where the recipient has opted for the applicable special method under Section 17(4), the relevant reversal requirements, including Rule 38, should be examined as applicable.

The ISD’s role is to distribute credit according to the applicable provisions. The recipient must separately assess the actual use of the service and make any reversal required by law.

5. Treatment of Documents Issued Under Rule 54(1A)

The supplied circular text clarifies the treatment of invoices, credit notes or debit notes issued under Rule 54(1A) by a regular GST registration to an ISD registration having the same PAN and State code.

As described in the supplied text, such a document functions as a mechanism for transferring input tax credit to the ISD. It is not treated as an outward supply merely because a document is issued for this purpose.

Consequently, the amount covered by such a credit-transfer document is not included in the issuing registration’s “turnover in State or Union Territory” under Section 2(112), as explained in the supplied circular text.

The supplied text also clarifies the treatment of this amount for the specified turnover and adjusted total turnover calculations used in the context of refund under Section 54(3) and Rule 89.

Businesses should maintain a clear distinction between:

  • Documents relating to actual outward supplies; and
  • Documents issued under Rule 54(1A) for the prescribed transfer of credit to an ISD registration.

6. Effect on ITC and Refund Calculations

The supplied circular text addresses two important aspects of credit-transfer documents issued under Rule 54(1A).

6.1 Not the issuing person’s inward-supply ITC

The credit reflected in a document issued to transfer credit to an ISD is not treated as input tax credit on an inward supply received by the issuing registration itself.

Accordingly, as described in the supplied text, the amount is not included in “Net ITC” for refund calculations under Rule 89(4) or Rule 89(5).

6.2 Correct treatment in refund computations

When preparing a refund application, a business should ensure that credit-transfer amounts are classified correctly and are not inadvertently included in the turnover or Net ITC figures contrary to the applicable rules.

The refund computation should be reconciled with the relevant invoices, credit-transfer documents, returns and books of account. The precise treatment should be confirmed against the current version of Rule 89 and the applicable statutory provisions.

7. Is the Issuing Registration Required to Reverse ITC?

According to the supplied circular text, the issuing registration is not required to make the Section 17 reversals merely because it transfers credit to the ISD through a document under Rule 54(1A).

The supplied text further clarifies that the entire eligible ITC available on account of tax paid under the reverse charge mechanism (RCM) should be transferred to the ISD, subject to the applicable provisions.

The recipient registrations must then examine their own eligibility and make any reversals required under the law. Depending on the facts, the issuing registration may itself also receive credit as a recipient and may have to make applicable reversals in that separate capacity.

Important distinction: The issuing registration’s role in transferring credit should not be confused with the recipient registration’s responsibility to assess eligibility and make required reversals.

8. Practical Example

Assume a company has a head office and two branch GST registrations. An input service invoice is received by the head office, but the service relates to all three registrations.

The company should:

  1. Identify the service and the registrations that benefit from it.
  2. Determine the credit eligible for distribution under the applicable provisions.
  3. Use the appropriate ISD registration and prescribed documents to distribute the credit.
  4. Report the distribution in Form GSTR-6 as required.
  5. Ensure each recipient registration checks eligibility under Sections 16 and 17.
  6. Make any applicable reversals at the recipient level.
  7. Reconcile credit-transfer documents with the books, returns and refund calculations, wherever relevant.

If part of the service relates to exempt supplies or non-business purposes, the recipient should assess the applicable reversal provisions. The fact that credit has been distributed by the ISD does not remove this responsibility.

9. ISD Compliance Checklist

  • Review whether the business is required to obtain ISD registration.
  • Assess whether multiple ISD registrations are appropriate for the business structure and locations.
  • Map input service invoices to the relevant recipient registrations.
  • Reconcile invoices with GSTR-6A and the records used for distribution.
  • Separate eligible and ineligible credit as required.
  • Distribute credit in accordance with Section 20 and Rule 39.
  • File Form GSTR-6 with accurate distribution details.
  • Check recipient eligibility under Sections 16 and 17.
  • Review reversals under Rules 38, 42 and 43, as applicable.
  • Correctly classify documents issued under Rule 54(1A).
  • Exclude credit-transfer amounts from turnover or Net ITC calculations where required by the applicable provisions.
  • Maintain reconciliations between invoices, ISD documents, returns and accounting records.

10. Frequently Asked Questions

Q1. Can a business obtain more than one ISD registration in a State?

According to the supplied circular text, more than one ISD registration may be obtained for different business verticals or places of business within the same State or Union Territory, subject to the applicable requirements.

Q2. Does distribution by the ISD automatically make ITC eligible for the recipient?

No. The recipient registration must independently satisfy the applicable ITC eligibility conditions under Sections 16 and 17 of the CGST Act.

Q3. When should credit be distributed by the ISD?

The supplied text explains that credit should be distributed in the relevant month once the applicable conditions under Rule 39(1)(a) are met, including the relevant invoice information and the ISD’s assessment of prima facie eligibility.

Q4. Who makes ITC reversals under Section 17?

As explained in the supplied text, the recipient registration is responsible for applicable reversals under Section 17 and the relevant rules.

Q5. Is a Rule 54(1A) document an outward supply?

The supplied circular text describes the document as a credit-transfer mechanism to the ISD, rather than an outward supply merely because the document is issued.

Q6. Is credit transferred to an ISD included in Net ITC for refund calculations?

According to the supplied text, the amount covered by the specified credit-transfer document is not included in Net ITC for the refund calculations under Rule 89(4) or Rule 89(5). The current provisions should be checked before filing a refund claim.

Q7. Does the issuing registration need to reverse ITC when transferring credit to the ISD?

The supplied text clarifies that the issuing registration is not required to reverse ITC merely because it transfers credit through the specified mechanism. Recipient-level eligibility and reversal requirements continue to apply.

Disclaimer

This article is for general information and educational purposes only. It is based on the text of the circular supplied for preparation and should not be treated as a substitute for the official circular or professional advice. Verify the official publication, the CGST Act, applicable rules, amendments and relevant clarifications before taking action in a specific case.

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