Input Service Distributor in GST


Courtesy : CA Hemant P. Vastani

Input Service Distributor in GST


Input Service Distributor (ISD) means an office of the supplier of goods or services or both which receives tax invoices towards receipt of input services and issues a prescribed document for the purposes of distributing the credit of central tax (CGST), State tax (SGST)/ Union territory tax (UTGST) or integrated tax (IGST) paid on the said services to a supplier of taxable goods or services or both having same PAN as that of the ISD.

It is important to note that the ISD mechanism is meant only for distributing the credit on common invoices pertaining to input services only and not goods (inputs or capital goods). Companies may have their head office at one place and units at other places which may be registered separately. The Head Office would be procuring certain services which would be for common utilization of all units across the country. The bills for such expenses would be raised on the Head Office. But the Head Office itself would not be providing any output supply so as to utilize the credit which gets accumulated on account of such input services.

Since the common expenditure is meant for the business of all units, it is but natural that the credit of input services in respect of such common invoices should be apportioned between all the consuming units. ISD mechanism enables such proportionate distribution of credit of input services amongst all the consuming units.

The important points for registration of ISD :

  • An ISD will have to compulsorily take a separate registration as such ISD and apply for the same in form GST REG-1.
  • There is no threshold limit for registration for an ISD.
  • The other locations may be registered separately. Since the services relate to other locations the corresponding credit should be transferred to such locations (having separate registrations) as the output services are being provided there.
  • For distributing the input tax credit, an ISD has to issue an ISD invoice, as prescribed in rule 54(1) of the CGST Rules, 2017, clearly indicating in such invoice that it is issued only for distribution of input tax credit.
  • The input tax credit available for distribution in a month shall be distributed in the same month and details furnished in FORM GSTR-6.
  • An ISD shall separately distribute both the amount of ineligible and eligible input tax credit.
  • The input tax credit on account of central tax and State tax or UT tax in respect of recipient located in the same state shall be distributed as central tax and State tax or UT tax respectively.
  • The input tax credit on account of central tax and State tax or UT tax shall, in respect of a recipient located in a State or Union territory other than that of the ISD, be distributed as integrated tax and the amount to be so distributed shall be equal to the aggregate of the amount of input tax credit of central tax and State tax or Union territory tax that qualifies for distribution to such recipient. The input tax credit on account of integrated tax shall be distributed as integrated tax.
  • An ISD will have to file monthly returns in GSTR-6 within thirteen days after the end of the month and will have to furnish information of all ISD invoices issued.
  • An ISD shall not be required to file Annual return.

For example, if an ISD has 3 units across the country. However, if a particular input service pertains exclusively to only one unit and the bill is raised in the name of ISD, the ISD can distribute the credit only to that unit and not to other units. If the input services are common for all units, then it will be distributed according to the ratio of turnover of all the units. The following illustration will clarify the issue.

M/s XYZ Ltd, having its head Office at Mumbai, is registered as ISD. It has three units in different states namely ‘Mumbai’, ‘Chennai’ and ‘Delhi’ which are operational in the current year. M/s XYZ Ltd furnishes the following information for the month of July, 2017 & asks for permission to distribute the below input tax credit to various units.

  1. CGST paid on services used only for Mumbai Unit: Rs.300000/-
  2. IGST, CGST & SGST paid on services used for all units: Rs.1200000/-

Total Turnover of the units for the Financial Year 2016-17 are as follows: –

Unit Turnover (Rs.)
Total Turnover of three units Rs. 10, 00, 00,000
Turnover of Mumbai unit Rs. 5, 00, 00,000 (50%)
Turnover of Chennaiunit Rs. 3, 00, 00,000 (30%)
Turnover of Delhi unit Rs. 2, 00, 00,000 (20%)


Computation of Input Tax Credit Distributed to various units is as follows:

Credit distributed to all units
Particulars Total credit available Mumbai Chennai Delhi
CGST paid on services used only

for Mumbai Unit.

300000 300000 0 0
IGST, CGST & SGST paid on services used in all units-

Distribution on pro rata basis toall the units which are operational in the current year

1200000 600000 360000 240000
Total 1500000 900000 360000 240000



Thus the concept of ISD is a facility made available to business having a large share of common expenditure and billing/payment is done from a centralized location. The mechanism is meant to simplify the credit taking process for entities and the facility is meant to strengthen the seamless flow of credit under GST.

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