From April 1, 2025, ISD filing has become mandatory under the amended Sections 2(61) and 20 of the CGST Act. An Input Service Distributor (ISD) is a registered person who receives invoices for input services and distributes the Input Tax Credit (ITC) to its branches or units having the same PAN.
This comprehensive guide explains Rule 39, the distribution methodology, and practical compliance requirements for ISDs.
What Is an Input Service Distributor (ISD)?
Definition
An Input Service Distributor (ISD) is a registered person who:
- Receives invoices for input services
- Distributes the ITC on such services to its branches or units
- All branches/units must have the same PAN
Legal Basis
- Section 2(61) of the CGST Act: Definition of ISD
- Section 20 of the CGST Act: Distribution of credit by ISD
- Rule 39 of the CGST Rules: Procedure for distribution of credit
When Is ISD Registration Mandatory?
From April 1, 2025
From April 1, 2025, ISD filing has become mandatory under the amended Sections 2(61) and 20 of the CGST Act.
Who Must Register?
- Businesses with multiple GST registrations under a single PAN
- Businesses that receive common input services and need to distribute ITC
- Businesses with common expenses such as software subscriptions, legal and advisory fees, and marketing services
What Services Are Covered Under ISD?
Input Services
Input services are services used in the course or furtherance of business.
Common Services
Services that are availed for multiple branches/units:
- Legal and advisory fees
- Software subscriptions
- Marketing and advertising services
- Professional fees
- Head office expenses
- IT services
- Consulting services
Rule 39: Distribution Methodology
The Rule
Rule 39 prescribes the manner of distribution of credit by an Input Service Distributor (ISD).
Distribution Ratio
ITC is distributed based on:
- Turnover of each recipient unit
- Or any other fair and reasonable basis
The Process
Step 1: ISD receives an invoice for input services
Step 2: ISD claims ITC in GSTR-6
Step 3: ISD distributes the ITC to its branches/units
Step 4: ITC is credited to the electronic credit ledger of each recipient unit
Step 5: Recipient units claim the distributed ITC
ISD ITC Distribution: Practical Example
Scenario: ABC Group has:
- Head office in Mumbai (ISD registered)
- Branches in Delhi, Bengaluru, and Chennai
- Each branch has a separate GSTIN under the same PAN
Common Services:
- Legal fees: ā¹10,00,000 + GST ā¹1,80,000
- IT services: ā¹5,00,000 + GST ā¹90,000
- Marketing services: ā¹3,00,000 + GST ā¹54,000
Distribution Basis: Turnover ratio
| Branch | Turnover (ā¹) | Proportion | ITC Distributed (ā¹) |
|---|---|---|---|
| Delhi | 5,00,00,000 | 50% | 1,62,000 |
| Bengaluru | 3,00,00,000 | 30% | 97,200 |
| Chennai | 2,00,00,000 | 20% | 64,800 |
| Total | 10,00,00,000 | 100% | 3,24,000 |
Result: Each branch claims ITC proportionate to its turnover.
ISD vs Cross Charge: Understanding the Difference
| Aspect | ISD | Cross Charge |
|---|---|---|
| What is it? | Distribution of ITC on input services | Taxable supply of goods/services between distinct persons |
| Tax implication | No GST on distribution | GST applies on the supply |
| ITC implication | ITC distributed to branches | ITC available to recipient branch |
| Invoice required | ISD invoice (not a tax invoice) | Tax invoice |
| Applicability | Only for input services | For goods and services |
ISD Compliance Checklist
- ISD registration is obtained (if applicable)
- GSTR-6 is filed monthly
- ITC is correctly distributed based on turnover ratio
- ISD invoices are issued to recipient units
- Recipient units claim the distributed ITC
- Documentation is maintained for audit purposes
Common Mistakes to Avoid
1. Not Registering as ISD
If you have multiple GST registrations under a single PAN and receive common input services, ISD registration is mandatory.
2. Distributing ITC on Goods
ISD can only distribute ITC on input services, not goods.
3. Using the Wrong Distribution Basis
ITC must be distributed based on turnover ratio or a fair and reasonable basis.
4. Not Filing GSTR-6
GSTR-6 must be filed monthly by the ISD.
5. Not Issuing ISD Invoices
Proper ISD invoices must be issued to recipient units.
Need help with ISD registration and ITC distribution? Our expert team provides comprehensive advisory to ensure ISD compliance.
Contact Anuj Desai & Associates: š§ Email: office@anujdesaiassociates.com š Phone: 9619456656 š Website: https://anujdesaiassociates.com š LinkedIn: linkedin.com/in/ca-anuj-desai-122547230