1. Executive summary
A business with registrations in multiple States must decide whether an internal movement is a goods transfer, a taxable service between distinct persons, or distribution of input tax credit. These are three different GST questions and should not be merged into one accounting entry.
Analyse supply of goods, valuation, tax invoice, e-way bill and recipient ITC.
Analyse Schedule I, cross-charge, valuation and invoice reporting.
Analyse mandatory ISD mechanism and distribution to eligible recipients.
2. Legal framework and terminology
The main provisions to map are Section 7 (scope of supply), Section 25(4) and 25(5) (distinct persons), Schedule I (certain supplies without consideration), Section 15 and Rule 28 (valuation between related/distinct persons), Section 20 and the Input Service Distributor rules (distribution of eligible input-service credit), plus invoicing and return provisions.
| Term | Practical meaning | Typical evidence |
|---|---|---|
| Distinct persons | Separate GST registrations of the same legal entity in different States/UTs are generally treated as distinct persons. | GST registration certificates, GSTIN master. |
| Cross-charge | A taxable supply of services by one GST registration to another, such as identifiable HO support services. | Service description, allocation workings, tax invoice. |
| ISD | An office that receives input-service invoices for or on behalf of distinct persons and distributes eligible ITC through the prescribed mechanism. | ISD registration, supplier invoice, distribution document and recipient reconciliation. |
| Stock transfer | Movement of goods between distinct registrations; where treated as a supply, tax is based on applicable valuation rules. | Delivery challan/tax invoice as applicable, e-way bill, stock records. |
Always apply the law and notifications effective for the relevant tax period. For periods from 1 April 2025, specifically review the amended mandatory ISD framework.
3. Decision tree: which mechanism applies?
- Are goods moving between State GSTINs? Review Schedule I, valuation, invoice and movement documents. This is not an ISD transaction.
- Did the head office itself provide a service to a branch? Analyse cross-charge as a supply between distinct persons, even if no separate commercial fee was charged.
- Did a third-party supplier invoice the head office for input services used by multiple GSTINs? Analyse whether the invoice is received by the office in its ISD capacity and whether distribution through ISD is required.
- Is the invoice for goods or capital goods? ISD is for input services; do not route goods/capital goods invoices through ISD merely because they benefit multiple locations.
- Is it a common expense with mixed use? Establish factual use, recipient registrations, eligible credit, and the correct cross-charge/ISD treatment before posting.
4. Distinct persons: why State GSTINs matter
Under GST, registrations of the same legal entity in different States are treated as distinct persons. The company may have one PAN and one set of financial statements, but its GST registrations have separate compliance responsibilities. A transaction between them may be a supply even where there is no separate payment.
Example
ABC Ltd has a Telangana GSTIN and a Maharashtra GSTIN. Hyderabad HO employs finance staff and performs payroll, accounting and management support for the Maharashtra branch. The absence of a bank transfer does not by itself make the activity non-taxable. The company should determine whether there is a supply of services between distinct persons and document its valuation approach.
5. Inter-State stock transfers of goods
Movement of goods between separately registered State locations can be a supply between distinct persons under Schedule I even without consideration. Use the appropriate tax invoice and e-way bill where applicable, record dispatch and receipt, and ensure the recipient GSTIN is correct.
| Scenario | GST analysis | Operational control |
|---|---|---|
| Telangana warehouse sends inventory to Karnataka GSTIN | Usually taxable inter-State supply between distinct persons; IGST subject to applicable rules. | Invoice, e-way bill, dispatch/receipt and stock ledger reconciliation. |
| Goods sent for job work | Check Section 143 and job-work procedure; do not automatically treat every movement as a sale. | Delivery challan, job-work register, return/extension deadline monitoring. |
| Goods moved within same GSTIN between locations | Usually internal movement rather than supply between distinct persons, but document movement and confirm any special facts. | Stock transfer note and location-wise inventory trail. |
| Goods sent to another GSTIN for trial/demo | Examine whether ownership/supply occurs, temporary movement rules, and return arrangements. | Purpose-specific challan, serial numbers, return date and proof of return. |
6. Valuation under Rule 28
For supplies between distinct persons or related persons, Rule 28 is central. The starting point is open market value where available, with prescribed alternatives where it is not. The rule contains an important deeming provision: where the recipient is eligible for full input tax credit, the value declared in the invoice is deemed to be the open market value.
HO invoices a branch ₹1,00,000 plus GST for support services. If the recipient is eligible for full ITC, the declared invoice value may be deemed open market value under the proviso to Rule 28. Keep the recipient's eligibility evidence and invoice trail.
If the recipient makes exempt supplies or has blocked/ineligible credit, do not rely mechanically on the full-ITC deeming provision. Prepare a defensible valuation working using applicable Rule 28 methods and the facts.
Where the rule permits cost-based valuation, cost records and allocation logic should be consistent and reproducible. A convenient percentage chosen only to reduce tax is weak evidence.
7. Cross-charge: when HO services branches
Cross-charge concerns a supply of services by one GST registration to another distinct registration. Common examples include central finance, HR, legal, IT administration, procurement support, centralised management and shared operations. Whether a particular activity is a supply and how it should be valued depends on the facts and legal framework; the label “reimbursement” does not settle the question.
Cross-charge documentation should explain
- What service was actually provided and by which registration.
- Which recipient GSTINs benefited and during which period.
- Why the chosen allocation key reasonably reflects benefit or use.
- How value was computed and how Rule 28 was applied.
- How the invoice is reported by supplier and recipient and reconciled to books.
Possible allocation keys: headcount for HR/payroll, user counts for software licences, transaction volumes for accounting processing, actual time records for project-specific legal support, or a documented hybrid model. There is no universal allocation key suitable for every service.
8. ISD: scope and mandatory framework
An Input Service Distributor receives invoices for input services used by or attributable to distinct persons and distributes eligible input tax credit to the relevant registrations through the prescribed ISD mechanism. The statutory ISD provisions were amended, with the mandatory framework effective from 1 April 2025. Businesses should separately assess pre- and post-effective-date periods and the precise category of input services involved.
ISD is not a generic route for all shared expenses. Confirm that the item is an input service, that the office qualifies and is registered as required, that the credit is eligible, and that distribution follows the prescribed allocation and documentation rules.
9. Cross-charge versus ISD: key differences
| Question | Cross-charge | ISD |
|---|---|---|
| What is it? | A supply of services between GST registrations. | Distribution of eligible ITC on input services. |
| Underlying transaction | Service supplied by one registration to another. | Third-party input-service invoice received for/on behalf of distinct persons. |
| Output tax? | Generally invoice and pay GST on taxable cross-charge, subject to applicable provisions. | ISD distributes credit; it is not itself an ordinary outward service invoice. |
| Goods invoices? | Not the correct mechanism for stock transfers. | ISD mechanism applies to input services, not goods/capital goods. |
| Documents | Tax invoice and valuation/allocation workpaper. | ISD registration, supplier invoice, prescribed ISD document and recipient reporting/reconciliation. |
| Typical error | Ignoring actual services because no fee is charged. | Allocating all HO costs through ISD without checking whether they are input services and credit eligible. |
Some groups may need both mechanisms: for example, third-party software services may be subject to ISD distribution while HO employees' own service activities may require a separate cross-charge analysis.
10. ISD allocation and recipient-wise distribution
Distribution should follow the statutory rules and reflect the registrations to which the input services are attributable. The allocation must be supported by the invoice, recipient list, turnover or other prescribed basis as applicable, and the credit type must be distributed in the correct manner.
Illustrative working
Common eligible service invoice: taxable value ₹2,00,000; IGST ₹36,000. The invoice relates to three recipient GSTINs. Assume for illustration that the applicable rule requires allocation based on the relevant turnover ratio of 50:30:20.
| Recipient GSTIN | Illustrative ratio | Credit allocation |
|---|---|---|
| Telangana | 50% | ₹18,000 |
| Karnataka | 30% | ₹10,800 |
| Maharashtra | 20% | ₹7,200 |
| Total | 100% | ₹36,000 |
Solution note: these numbers demonstrate the arithmetic only. Before filing, confirm the actual statutory turnover period, recipient eligibility, place-of-supply/credit type rules and any specific distribution rule applicable to the invoice. Do not substitute this illustrative ratio for the legally prescribed method.
11. Reverse-charge input services and ISD
Reverse-charge services need particular attention because the recipient may be responsible for paying tax and the resulting credit may then be eligible for distribution under the amended ISD framework, where the statutory conditions are met. Do not assume that a vendor invoice addressed to HO is automatically a normal forward-charge ISD item.
- Identify the service and verify whether a notification makes it subject to RCM.
- Identify the registration legally liable to pay RCM.
- Pay the tax in the required manner and report it in the relevant return.
- Determine eligibility of the resulting ITC under Section 16 and restrictions under Section 17.
- Where the input service is attributable to distinct persons, apply the ISD requirements effective for the period and keep the tax payment and distribution trail.
12. Common costs: how to classify each expense
| Expense | Questions to ask | Potential treatment |
|---|---|---|
| External legal retainer | Who is named as recipient? Which entities/cases are covered? | ISD review if input service is received for multiple registrations; separately assess HO service activities. |
| Cloud software/SaaS | One central contract or individual licences? User data by GSTIN? | Input-service ITC distribution review; cross-charge only for distinct services actually supplied. |
| HO payroll and finance staff | What services do employees perform for branches? | Cross-charge analysis; employee service to employer itself is Schedule III, but services between distinct GST registrations require analysis. |
| Goods purchased centrally | Is the invoice for goods or services? Where are goods delivered? | Goods invoice/stock transfer or other appropriate treatment; not ISD for goods. |
| Capital asset used across States | Asset ownership, location, use, invoice GSTIN and credit eligibility? | Capital goods are not distributed through ISD; assess registration and transfer rules separately. |
| Travel or hotel bill | Who travelled, purpose, GSTIN named and ITC eligibility? | May be direct to one GSTIN, common service, or ineligible; assess facts and restrictions. |
13. Full ITC, exempt supplies and blocked credit
The Rule 28 full-ITC deeming provision and the eligibility of the underlying ITC are separate tests. A recipient may be fully taxable for one activity but still have blocked credit on a specific expense. Likewise, a recipient may be engaged in exempt supplies and require proportionate reversal.
- Check Section 16 conditions, including possession of a valid document and receipt of supply.
- Check Section 17 restrictions and Rules 42/43 where relevant.
- Determine whether the service relates exclusively to one recipient or is common.
- Keep the ITC eligibility decision in the ISD/cross-charge workpaper.
HO receives a common service invoice for ₹1,00,000 + ₹18,000 GST. One branch makes taxable supplies and another makes exempt supplies. Do not simply distribute the entire ₹18,000 in the same ratio without testing each recipient's credit eligibility and the applicable distribution rules.
14. Invoices, ISD documents and return reporting
The supplier-side and recipient-side records should reconcile. Cross-charge invoices and ISD distribution documents serve different legal purposes and should not be substituted for one another.
Monthly controls
- Reconcile supplier invoice register to invoices eligible for ISD.
- Confirm ISD registration details and recipient GSTINs.
- Check the prescribed ISD document and return reporting for the relevant period.
- Match cross-charge invoices to the allocation workpaper and supplier return.
- Confirm recipient ITC appears in the correct return and reconcile to books.
- Maintain a no-duplication check to prevent credit being claimed both directly and through ISD.
Return forms, table numbers and portal workflows can change. Verify current GST portal instructions and statutory rules before filing instead of relying on a static screenshot or old checklist.
15. Worked examples with solutions
Case 1 — Stock transfer between State GSTINs
Facts: Telangana GSTIN sends goods worth ₹5,00,000 to Karnataka GSTIN. Assume applicable rate 18% and no special exception.
Solution: Treat as a taxable inter-State supply between distinct persons. Illustrative IGST = ₹90,000. Issue appropriate tax invoice, generate e-way bill where required, record dispatch/receipt and recipient ITC subject to conditions.
Case 2 — HO finance team serves branches
Facts: HO staff perform monthly finance processing for two branches. No fee is charged.
Solution: Assess cross-charge because service between distinct persons may be supply even without consideration. Document the services, beneficiary GSTINs, allocation key and Rule 28 valuation. Employee services to employer are not the same as the service supplied between GST registrations.
Case 3 — Software vendor invoices HO for three GSTINs
Facts: A third-party vendor invoices annual cloud subscription to HO; user accounts belong to three States.
Solution: Review the invoice as a common input service and determine whether mandatory ISD applies for the period from 1 April 2025. Document recipient attribution and distribute eligible credit through the prescribed ISD mechanism where required. Do not merely raise a cross-charge invoice for the vendor's credit without analysing ISD.
Case 4 — Goods invoice accidentally put through ISD
Facts: HO buys laptops for branches and allocates ITC using an ISD document.
Solution: ISD applies to input services, not goods/capital goods. Correct the document and evaluate the proper recipient, transfer and ITC treatment based on the invoice and asset movement. Prevent double claims and correct returns as legally permitted.
Case 5 — Common service with one exempt branch
Facts: A common consultancy service benefits a taxable branch and an exempt-supply branch.
Solution: Establish the correct distribution basis and assess ITC eligibility/reversal rules for each recipient. Do not assume that a full-credit valuation rule makes all distributed ITC eligible.
Case 6 — Same-State offices under one GSTIN
Facts: Company shifts stock between two warehouses in Telangana, both covered by one GSTIN.
Solution: This is not automatically a supply between distinct persons. Maintain stock movement records and test any other facts, such as separate registrations, job work, delivery to a customer or change in ownership.
16. Industry-specific situations
| Industry | Typical issue | Recommended control |
|---|---|---|
| Construction/infrastructure | Central procurement, project-management teams, machinery and project offices in multiple States. | Separate goods movement, project services, shared vendor invoices and capital assets; reconcile project/GSTIN-wise. |
| Manufacturing | Raw material and finished-goods transfers to depots or factories. | GSTIN-level stock transfer invoices, e-way bills, batch/quantity matching and ITC review. |
| IT/SaaS | Enterprise software, cybersecurity, cloud and central IT support. | Maintain licence/user reports, vendor invoice allocation, ISD register and separate cross-charge service analysis. |
| Retail/e-commerce | Central warehouse supplies, branch inventory and marketplace services. | Map each warehouse to GSTIN, separate goods from services and reconcile transfer documents to inventory. |
| Healthcare | Common professional, IT or facility services with taxable and exempt activities. | Assess credit eligibility and apportionment, not just recipient allocation. |
| Financial services | Central operations and common service costs across multiple registrations. | Review special ITC restrictions, exempt/taxable turnover and applicable distribution rules. |
17. Accounting entries and ERP design
Accounting should reflect the legal mechanism rather than use one generic “branch transfer” ledger for all activity.
Suggested ERP dimensions
- Supplier GSTIN and recipient GSTIN.
- Document type: goods transfer, cross-charge service, ISD distribution, job-work challan or internal movement.
- Input service/goods/capital goods flag.
- Taxability, rate, place of supply, ITC eligibility and RCM indicator.
- Allocation method and version, cost centre/project, and evidence link.
- Supplier return period, recipient ITC period and exception status.
For cross-charge, the supplier registration records outward supply and output tax as applicable, while the recipient records the expense/asset and eligible ITC. ISD distribution is recorded through the prescribed mechanism and reconciled to the supplier invoice and recipient credit. Stock transfers require inventory movement and the corresponding GST accounting entries. Exact journal accounts depend on the company's chart of accounts and reporting policy.
18. Common mistakes and how to correct them
- Using cross-charge for every common vendor invoice: classify input services and assess ISD requirements first.
- Using ISD for goods or capital goods: correct the route; ISD is for input services.
- Assuming no consideration means no GST: distinct-person supplies may be covered by Schedule I.
- Using one allocation key for all costs: align the key to the nature of service and statutory rule.
- Ignoring 1 April 2025: segment pre- and post-effective-date processes and correct transition controls.
- Claiming the same credit twice: reconcile direct invoices, ISD documents and cross-charge invoices.
- Assuming all distributed credit is eligible: review Sections 16/17 and relevant reversal rules.
- Using book entries as sole evidence: retain contracts, invoices, service descriptions, recipient attribution and workings.
19. Audit-ready evidence and departmental questions
Prepare a GSTIN-wise file that allows a reviewer to trace each common cost from supplier invoice to legal treatment and final return.
- Registration matrix with effective dates and State/UT.
- Intercompany service catalogue and written cross-charge policy.
- ISD registration, supplier invoice register, eligible-credit analysis and distribution workings.
- Rule 28 valuation note and evidence supporting allocation keys.
- Goods transfer invoice/e-way bill/stock records and job-work documents.
- Supplier and recipient return reconciliations and proof of credit not duplicated.
- Exception log, approval sign-offs, corrective entries and tax-period notes.
Likely departmental questions include why no cross-charge was raised, why a vendor invoice was distributed by ISD, why a particular GSTIN received a specific share, whether credit was blocked, and whether the same invoice was claimed directly and through ISD. A defensible response should answer each question with documents and a calculation, not only a generic legal quotation.
20. Monthly close checklist
- Update active GSTINs, registrations and effective dates.
- Identify inter-State goods movements and reconcile them to stock records.
- Review central vendor invoices and tag goods, capital goods or input services.
- Identify input services received on behalf of multiple GSTINs and assess ISD.
- Identify actual HO-to-branch services and prepare cross-charge workings.
- Validate Rule 28 valuation and full-ITC recipient status where relied upon.
- Review recipient-wise credit eligibility, blocked credit and exempt use.
- Prepare and review ISD documents and returns as applicable.
- Reconcile supplier tax, cross-charge invoices, ISD credits, GSTR-2B and books.
- Resolve duplicates, missing credits, wrong GSTIN and period differences.
- Archive evidence and reviewer approvals.
21. Frequently asked questions
1. Is every HO expense required to be cross-charged?
No. Analyse the actual service, recipient registrations, applicable valuation and whether the expense is an input service requiring ISD distribution. Not every accounting cost is automatically a taxable service.
2. Is ISD mandatory from 1 April 2025?
The amended mandatory ISD framework applies from 1 April 2025. Determine whether the particular input-service invoice and recipient arrangement fall within Section 20 and the applicable rules.
3. Can ISD distribute goods or capital-goods ITC?
No. ISD concerns input services. Goods and capital goods need a separate analysis.
4. Can HO cross-charge employee salary?
Salary paid by an employer to its employees is not itself a supply under Schedule III. However, services provided by one GST registration to another distinct registration require a separate analysis; salary cost may be relevant to valuation but is not automatically a separate salary supply.
5. Can the declared cross-charge value be zero?
Do not assume so. Consider Schedule I and Rule 28, including whether the recipient is eligible for full ITC and whether the declared value can be deemed open market value. Document the conclusion.
6. What if the recipient has no full ITC?
Do not rely mechanically on the full-ITC deeming proviso. Apply the relevant valuation methods and credit eligibility rules to the facts.
7. Can a branch claim ITC on a cross-charge invoice?
Subject to normal Section 16 conditions, restrictions, receipt/use of service and proper reporting. The invoice alone does not guarantee eligibility.
8. Are two warehouses in the same State distinct persons?
Not merely because they are separate locations. Check whether they have separate GST registrations and consider the actual transaction.
9. Should the same vendor invoice be both cross-charged and distributed by ISD?
Avoid duplicate credit and duplicate treatment. Identify whether the underlying item is a third-party input service to be distributed, an actual service supplied by HO, or distinct components requiring separate analysis.
10. What allocation key should be used?
Use the key prescribed by the applicable rule where specified; otherwise document a reasonable, consistent method aligned with actual service attribution. Do not assume one key fits every cost.
11. Does one PAN mean only one GST registration?
No. A legal entity may have multiple State registrations, which can be distinct persons for GST purposes.
12. What is the most important control?
A monthly GSTIN-wise reconciliation linking supplier invoices, cross-charge invoices, ISD documents, goods movements, returns and credit claimed.
22. Related resources and final review
Browse practical GST articles and compliance guides.
Review invoice-level reconciliation and evidence controls.
Explore project-based GST and stock/document controls.
Educational guidance only. Confirm the CGST/SGST/IGST Acts, Rules, notifications, circulars, amendments and GST portal instructions applicable to the relevant tax period before filing or changing a process.