GST Isd Registration — Input Service Distributor Registration Under GST
In businesses with multiple branches or operating units across India, input tax credit on services received at a central office often needs to be distributed to the relevant branches for utilisation. The Input Service Distributor (ISD) mechanism under GST facilitates exactly this — allowing a head office or centralised services unit to receive tax invoices for common services and distribute the credit to its registered branches. Obtaining a separate Isd registration is the first step in setting up this distribution arrangement, and understanding what it involves helps businesses structure their GST compliance correctly from the outset.
What is an Input Service Distributor Under GST
An Input Service Distributor is an office of a supplier of goods or services that receives tax invoices for input services used by its branches and distributes the eligible input tax credit among those branches. The ISD must be registered separately under GST — it is a distinct registration from the regular GSTIN of the same entity. The Isd files its own return (GSTR-6) to report the credit received and distributed. The broader registration framework is on the GST registration service page.
Who Needs Isd Registration
Isd registration is relevant for:
- Companies with a centralised procurement or finance office that pays for services used across multiple branches
- Organisations that receive invoices for common services (such as software subscriptions, advertising, legal services, audit fees) at a head office level
- Businesses with multiple GST registrations across different states that need to distribute shared service credits
Not every multi-branch business needs Isd registration. It is only required when a single office receives invoices for services that are attributable to other registered units.
Isd Registration vs Regular GST Registration
| Feature | Regular GST Registration | Isd Registration |
|---|---|---|
| Purpose | Tax collection and compliance on supply of goods/services | Distribution of input tax credit from common services |
| Return Form | GSTR-1, GSTR-3B | GSTR-6 |
| Tax Payment | Required | Not applicable (no tax collection) |
| Input Tax Credit | Claimed and utilized | Received and distributed to branches |
| Invoicing | Issues tax invoices to customers | Issues Isd invoices/credit notes to branches |
Documents Required for Isd Registration
- PAN of the entity (the same PAN as the main entity, but Isd is a separate registration)
- Proof of principal place of business for the Isd office
- Details of the authorised signatory
- List of all registered branch GSTINs to which credit will be distributed
- Bank account details of the Isd office
For Isd offices without a dedicated physical address, a virtual office may serve as the registered address. For applicants in cities like Mumbai or Bengaluru, Isd registrations follow the same process as regular registrations.
How Credit Distribution Works Under Isd
The ISD distributes input tax credit in proportion to the turnover of each recipient branch during the relevant period. The distribution is documented through ISD invoices or credit/debit notes issued to each branch. The ISD itself files GSTR-6 to report the credit received and distributed in each return period. If the Isd registration details change, the GST amendment process applies for updating the registered information.
Isd Registration Process on the GST Portal
The registration process for Isd follows the same portal steps as regular GST registration. The key difference is in the "Registration Type" selection on the portal, where "Input Service Distributor" is chosen. For a portal walkthrough, the online registration steps guide covers the general process. After submission, the GSTIN issuance process applies in the same manner as for regular registrations. The registration cost guide provides relevant fee context for planning.
Why IndiaFilings for Isd Registration
ISD registration requires understanding of how input tax credit flows across multiple registrations and how the Isd mechanism integrates with each branch's regular GST compliance. IndiaFilings provides complete support for Isd registration and setup — from portal application to GSTR-6 filing guidance — ensuring that the distribution mechanism is correctly established from the start. For registrations that were cancelled and need reinstatement, the GST revocation process applies to Isd registrations as well.
Setting up an Input Service Distributor registration? Get complete Isd registration support from IndiaFilings.
