GST Cross-Charge vs Mandatory Input Service Distributor (ISD) Mechanism: Section 20 CGST Act Amendment, Distinct Persons Cost Allocation & Valuation Guide

Executive Overview & Quick Highlights: In the complex operating landscape of Indian multi-location corporate enterprises, financial conglomerates, IT and consulting entities, and manufacturing giants, few issues have generated greater compliance friction and audit uncertainty under the Goods and Services Tax (GST) framework than the distribution of input tax credit (ITC) and cost apportionment between distinct persons. Operating through a decentralized multi-state model—where a Head Office (HO) located in one state procures centralized services such as cloud infrastructure, corporate software licenses, legal retainers, brand marketing, statutory audits, and central administrative support—requires an ongoing mechanism to allocate and distribute the economic value and the underlying input tax credit to branches and delivery centers (Branch Offices, or BOs) across other states. Historically, registered persons oscillated between two competing mechanisms: the Input Service Distributor (ISD) mechanism provided under Section 24(viii) and Section 20 of the Central Goods and Services Tax (CGST) Act, 2017, and the Cross-Charge mechanism rooted in the valuation rules for supplies between distinct persons under Section 25(4) read with Rule 28 of the CGST Rules, 2017.

For nearly seven years following the rollout of GST on July 1, 2017, corporate taxpayers vigorously debated whether the ISD mechanism was mandatory or merely optional, bolstered by conflicting advance rulings (most notably the landmark Karnataka Appellate Authority for Advance Ruling decision in Columbia Asia Hospitals Pvt. Ltd.) and administrative circulars (Circular No. 199/11/2023-GST). However, this long-standing ambiguity was decisively settled by Parliament through the Finance Act, 2024, which comprehensively substituted Section 20 of the CGST Act to make the ISD mechanism strictly mandatory for distributing input tax credit in respect of third-party input services procured by an office of the supplier for or on behalf of distinct persons. Simultaneously, the cross-charge mechanism remains legally indispensable, but its scope has been redefined strictly to internally generated services (such as corporate executive oversight, central IT manpower, HR management, and strategic treasury support). Failure to delineate between ISD and cross-charge exposes corporations to severe demands under Section 73 or Section 74, disallowance of credits under Section 16(2), and crippling interest liabilities under Section 50. This definitive masterclass provides tax directors, CFOs, and practitioners with an exhaustive analysis of the amended statutory architecture, Rule 28 valuation mechanics, employee cost exclusion protocols, worked numerical case studies, and end-to-end audit tracking within the assureOffice ecosystem.

• The Mandatory ISD Mandate: Deconstruction of substituted Section 20 of the CGST Act, defining the compulsory registration trigger under Section 24(viii) and eliminating optional cross-charge for third-party input services.
• Cross-Charge Boundary: Restricting cross-charge exclusively to internally generated services and captive shared service centers (SSCs) under Section 7(1)(c) read with Schedule I, Paragraph 2.
• Valuation Architecture (Rule 28): Application of the Open Market Value (OMV) standard, the 110% cost of provision benchmark under Rule 30, and the second proviso safe harbor (recipient eligible for full ITC).
• Employee Salary Dilemma Resolved: Detailed analysis of Circular No. 199/11/2023-GST affirming that HO employee salary costs are not includible in cross-charge valuation.
• Compliance Operations: Separate registration workflows, GSTR-6 filing mechanics, credit distribution invoice requirements, and handling of reverse charge (RCM) credits.
• Technology Automation: Seamless ledger reconciliation, credit distribution matrix computation, and audit trail verification using assureTax and assureFinancials.

1. Statutory Architecture & Legislative Logic: Section 20 vs. Cross-Charge

To establish a coherent compliance policy, tax professionals must first deconstruct the underlying statutory architecture that governs the flow of goods, services, and tax credits between distinct entities within the same corporate umbrella. Under Section 25(4) of the CGST Act, a person who has obtained or is required to obtain more than one registration, whether in one State or Union territory or in more than one State or Union territory, shall, in respect of each such registration, be treated as distinct persons for the purposes of the Act. Consequently, transactions between distinct persons constitute a taxable supply under Section 7(1)(c) read with Paragraph 2 of Schedule I, even when made without consideration.

The core tension arose because the CGST Act originally contained parallel provisions for dealing with shared operational costs: Section 20 provided a framework for an Input Service Distributor to distribute credit of input services, while the valuation rules under Rule 28 governed supplies between distinct persons. The table below delineates the statutory differences between these two operational regimes following the legislative overhaul:

The legislative logic behind amending Section 20 was to restore tax certainty. Prior to the amendment, large corporate groups routinely bypassed ISD registration, arguing that Section 20 utilized the term "may" and that issuing a cross-charge tax invoice under Rule 28 served the identical fiscal objective of moving credit to branches. The tax authorities, however, aggressively challenged this practice during departmental audits and DGGI investigations, alleging that cross-charging third-party services resulted in inappropriate conversion of input service credits into output tax, thereby distorting turnover figures, creating artificial tax liability, and violating the specific statutory apportionment formulas prescribed under Rule 39. By amending Section 20, Parliament codified an unequivocal statutory dichotomy: third-party procurements must flow exclusively through the ISD route, whereas internal shared capabilities must be billed through the cross-charge route.

2. Deep-Dive Technical Mechanics: The Mandatory ISD Framework

The substituted Section 20 of the CGST Act completely recasts the operational mechanics of credit distribution. Under the revised framework, any office of the supplier of goods or services or both which receives tax invoices issued under Section 31 towards the receipt of input services, and takes an inward supply for or on behalf of distinct persons referred to in Section 25, shall register as an Input Service Distributor and distribute the input tax credit in respect of such services.

2.1 Core Elements of Substituted Section 20

To ensure flawless compliance, finance teams must master the three structural pillars embedded in the new Section 20:

1. Compulsory Dual Registration: Under Section 24(viii), any office receiving tax invoices for input services for or on behalf of distinct persons is required to be registered as an ISD, irrespective of whether it already holds a regular registration as a supplier in that State. A corporate HO located in Gurugram, Haryana, for example, must maintain two distinct GSTINs: a regular GSTIN (e.g., 06AAACA0000A1Z1) for its outward supplies and operational expenses, and an ISD GSTIN (e.g., 06AAACA0000A1D2) dedicated solely to receiving third-party input service invoices and distributing credit.
2. Universal Coverage of Third-Party Services: The revised law encompasses all common input services procured from external vendors where the underlying benefit is consumed by one or more branches. This includes SaaS subscriptions (e.g., ERP licenses, CRM software), nationwide advertising campaigns, central statutory audit fees, external management consulting retainers, pan-India insurance policies, and enterprise lease lines.
3. Distribution of Ineligible Credits: Under Rule 39(1)(b), the ISD is statutorily required to distribute both eligible and ineligible input tax credit separately. If an input service is blocked under Section 17(5) (such as corporate membership clubs or catering services for multi-locational events), the ISD must distribute the credit with an explicit flag indicating its ineligible status, ensuring the recipient branch accounts for the blocked credit under Table 4(B) of Form GSTR-3B.

2.2 The Mathematical Formula for Credit Distribution under Rule 39

The distribution of credit by an ISD is governed by rigid mathematical formulas prescribed in Rule 39 of the CGST Rules, ensuring equitable credit allocation based on turnover. Tax practitioners utilizing assureTax can automate these allocations without manual spreadsheet errors:

Where an input service is attributable to a specific recipient branch, the entire credit is distributed solely to that recipient. However, where an input service is attributable to more than one recipient branch or to all branches, the credit must be distributed on a pro-rata basis utilizing the following formula:

Credit Distributed to Recipient (C1) = Total Common Credit (C) × [Turnover of Recipient (T1) / Aggregate Turnover of all Operational Beneficiaries (T)]

Where:

• Total Common Credit (C): The total amount of IGST, CGST, and SGST available for distribution on invoices received during the relevant tax period.
• Turnover of Recipient (T1): The turnover of the specific recipient branch in its State during the relevant qualifying period.
• Aggregate Turnover (T): The aggregate turnover during the relevant qualifying period of all recipient branches that were operational in the current year and to which the input service is attributable.
• Relevant Qualifying Period: Under Rule 39, if all recipient branches have turnover in the preceding financial year, the turnover of that preceding financial year is adopted. If any of the recipients do not have any turnover in the preceding financial year, the turnover of the last quarter preceding the month of distribution is adopted.

2.3 Inter-State vs. Intra-State Distribution Mechanics

A critical operational aspect of ISD compliance is managing tax type conversions. The ISD mechanism operates strict statutory rules regarding how CGST, SGST, and IGST credits transform upon distribution:

• Input IGST Credit: Always distributed as IGST credit to all recipients, regardless of whether the recipient branch is located within the same State or in an external State.
• Input CGST and SGST Credit Distributed Inter-State: When the ISD distributes CGST and SGST credit to a recipient branch located in a different State, the combined CGST and SGST amounts must be distributed as IGST credit.
• Input CGST and SGST Credit Distributed Intra-State: When the ISD distributes CGST and SGST credit to a recipient branch located in the same State, it must be distributed respectively as CGST and SGST credit.

3. Cross-Charge Mechanics & Rule 28 Valuation Architecture

While third-party vendor services are now mandated to flow via the ISD route, the Cross-Charge mechanism remains fully operational and compulsory for internally generated services. Internally generated services represent functions performed by corporate personnel seated at the Head Office or a Shared Service Center (SSC) that directly support the revenue-generating capabilities of branch offices. Common examples include centralized human resource recruitment, in-house payroll processing, group legal counsel drafting contracts, corporate treasury management, centralized procurement negotiations, and executive board governance.

3.1 Deconstructing Rule 28 Valuation Hierarchy

Under Section 15(4) of the CGST Act, where the supply of goods or services is between related persons or distinct persons, the value of supply cannot be determined by the transaction price and must be established under Rule 28 of the CGST Rules. Rule 28 establishes a strict four-tiered valuation hierarchy:

1. Open Market Value (OMV): The value of the supply shall be the open market value of such services under Rule 28(a). However, in practical corporate governance, in-house strategic management or corporate HR services are inherently unique and proprietary; an open market comparable rarely exists in external commercial markets.
2. Supply of Like Kind and Quality: If OMV is unavailable, the value shall be the value of supply of services of like kind and quality under Rule 28(b). Like OMV, proprietary executive oversight cannot readily be matched with third-party service contracts.
3. Cost-Plus Method (Rule 30): If value cannot be determined under clauses (a) or (b), it must be determined under Rule 30, being 110% of the cost of provision of such services. In corporate cross-charge models, this entails aggregating overhead costs, depreciation on central office assets, rent, utilities, and IT infrastructure, applying an allocation key (such as headcount or revenue), and adding a 10% statutory markup.
4. The Second Proviso Safe Harbor (Full ITC Eligibility): Crucially, the Second Proviso to Rule 28 provides that where the recipient is eligible for full input tax credit, the value declared in the invoice shall be deemed to be the open market value of the goods or services. This second proviso represents the bedrock of corporate cross-charge defense in India.

3.2 Circular No. 199/11/2023-GST & The Employee Cost Breakthrough

Prior to July 2023, tax authorities routinely issued show-cause notices asserting that corporate cross-charges must include the salary and employee benefits of HO personnel, relying on the Karnataka AAAR ruling in Columbia Asia Hospitals. Tax officers argued that because an employee is an employee of the legal entity, HO staff provide services to the HO, which in turn provides corporate support to branches, thereby removing the exclusion under Schedule III, Paragraph 1 (services by an employee to the employer in the course of employment).

The Central Board of Indirect Taxes and Customs (CBIC) definitively dismantled this aggressive revenue stance through Circular No. 199/11/2023-GST (dated July 17, 2023), clarifying three revolutionary principles:

• Inclusion of Employee Salary is NOT Mandatory: The CBIC explicitly clarified that the cost of salary paid by the Head Office to its employees is not mandatory to be included while computing the cost of internally generated services provided by HO to distinct persons. Because the employment contract binds the individual to the corporate entity as a whole, employee salary falls squarely within Schedule III and cannot be forcibly subjected to GST cross-charge.
• Validity of Second Proviso for Nominal Invoicing: Where the recipient distinct person is eligible for full input tax credit, any value declared in the tax invoice by the Head Office—even a nominal amount of ₹1,000, ₹100, or nil—shall be deemed to be the open market value under the Second Proviso to Rule 28.
• Protection where No Invoice is Issued: In cases where the recipient branch is entitled to full input tax credit and the Head Office has not issued any cross-charge invoice at all, the value of internally generated services shall be deemed to be Nil, and such nil valuation shall be accepted as open market value without attracting tax demands or penalty proceedings!

However, tax directors must exercise extreme caution: the Second Proviso safe harbor applies only if the recipient branch is eligible for full input tax credit. If a branch makes exempt supplies (such as healthcare units, educational institutions, power generation, or real estate residential leasing), or is subject to ITC apportionment under Section 17(2) read with Rule 42, the Second Proviso cannot be invoked! In such mixed-supply entities, the HO must rigorously compute cross-charge valuation under Rule 30 at 110% of operational cost, excluding employee compensation as permitted by Circular 199.

4. Multi-Act Interplay: GST, Income Tax & Corporate Accounting

The interaction between ISD, cross-charge, direct taxation, and corporate financial reporting is complex and demands seamless cross-departmental coordination:

4.1 Income Tax Act Interplay (Section 40A(2)(b) & Transfer Pricing)

While GST cross-charges occur between distinct persons within the same legal entity (bearing the same Permanent Account Number, or PAN), domestic transactions do not attract Indian domestic transfer pricing under Section 92BA unless they involve specified domestic transactions between eligible businesses under Section 80-IA / 115BAB. However, corporate finance teams must maintain consistency: if a company debits branch profit and loss accounts with management fees or cross-charges for internal divisional performance analysis, statutory tax auditors scrutinize these allocations under Form 3CD Clause 23 (Section 40A(2)(b)) and verify whether management overheads have been artificially shifted to units enjoying tax holidays (such as Section 10AA SEZ units).

4.2 Schedule III Financial Statements & Ind AS 115

Under corporate accounting principles and Ind AS (Indian Accounting Standards), inter-branch transactions between different GSTINs of the same corporate legal entity are eliminated in standalone financial statements during entity-level consolidation. Under Schedule III of the Companies Act, 2013, cross-charge turnover billed on tax invoices does not represent external revenue from contracts with customers under Ind AS 115. Consequently, statutory auditors must ensure that cross-charge invoices are reflected exclusively in the GST revenue reconciliation (Table 5 of Form GSTR-9C) and eliminated in the statutory Profit and Loss Account. Tax accounting platforms such as assureFinancials automatically maintain this multi-layer reconciliation between financial books and GST ledgers.

5. Real-World Practical Case Studies & Worked Numerical Illustrations

Case Study 1: Multi-State Technology Enterprise Navigating Mandatory ISD

Scenario: TechSphere Solutions Ltd. operates its corporate headquarters in Bengaluru (Karnataka) with delivery centers in Hyderabad (Telangana), Pune (Maharashtra), and Noida (Uttar Pradesh). In May 2026, TechSphere procured centralized cloud hosting infrastructure from an external vendor for ₹60,00,000 + 18% IGST (₹10,80,000). The service is utilized by all three delivery centers and HO. The operational turnover for FY 2025-26 was: Karnataka (HO): ₹40 Crore; Telangana: ₹30 Crore; Maharashtra: ₹20 Crore; Uttar Pradesh: ₹10 Crore. Total Aggregate Turnover = ₹100 Crore.

Compliance Execution: Under amended Section 20, TechSphere cannot issue cross-charge tax invoices from its regular Karnataka GSTIN. It must route the invoice through its Karnataka ISD registration. The credit distribution under Rule 39 is computed as follows:

• Karnataka (HO regular GSTIN): (₹40 Cr / ₹100 Cr) × ₹10,80,000 = ₹4,32,000 IGST (distributed as IGST credit).
• Telangana (Hyderabad branch): (₹30 Cr / ₹100 Cr) × ₹10,80,000 = ₹3,24,000 IGST.
• Maharashtra (Pune branch): (₹20 Cr / ₹100 Cr) × ₹10,80,000 = ₹2,16,000 IGST.
• Uttar Pradesh (Noida branch): (₹10 Cr / ₹100 Cr) × ₹10,80,000 = ₹1,08,000 IGST.

Outcome: TechSphere files Form GSTR-6 on June 13, 2026. Each recipient branch views its exact credit entitlement in Table 4A(4) of Form GSTR-2B, eliminating any risk of credit disallowance or turnover inflation.

Case Study 2: Head Office Shared Services Cross-Charge with Second Proviso Safe Harbor

Scenario: Apex Global Retail Ltd. maintains its central corporate office in Mumbai (Maharashtra) housing top management, centralized legal, IT architecture, and brand marketing teams. The total monthly operational cost of the corporate office is ₹1,20,00,000, comprising ₹80,00,000 in employee salaries and ₹40,00,000 in office rent, electricity, depreciation, and software licenses. The company operates retail stores across Gujarat, Delhi, and Karnataka, all of which effect 100% taxable retail supplies and are entitled to full ITC.

Valuation & Invoicing: Relying on Circular No. 199/11/2023-GST, Apex Global excludes the ₹80,00,000 employee salary pool. For the remaining ₹40,00,000 common overhead, because all recipient stores are eligible for full ITC, Apex Global invokes the Second Proviso to Rule 28. It elects to issue a monthly cross-charge invoice of ₹5,00,00,000 + 18% IGST (₹90,000) to each of its three out-of-state branches.

Audit Defense: During a GST audit, the department contends that the cross-charge should have been ₹1,20,00,000 plus a 10% markup (₹1,32,00,000). The company successfully refutes the demand by producing Circular 199, establishing that employee salaries are non-taxable under Schedule III and that under the Second Proviso to Rule 28, the value declared on the invoice is statutorily deemed to be the Open Market Value. The entire proceedings are dropped.

Case Study 3: The Exempt Supply Trap – When Second Proviso Safe Harbor Fails

Scenario: CareWell Healthcare Ltd. operates a corporate administrative office in Delhi and multi-specialty hospitals in Gurugram (Haryana) and Jaipur (Rajasthan). Healthcare clinical services provided by the hospitals are exempt from GST under Notification No. 12/2017-Central Tax (Rate). The Delhi HO incurs centralized internal IT and administrative expenses of ₹50,00,000 (excluding doctor salaries) supporting the hospitals.

Compliance Trap: Because the recipient hospitals effect exempt healthcare supplies, they are NOT eligible for full input tax credit (ITC eligibility is zero under Section 17(2)). Consequently, CareWell cannot invoke the Second Proviso to Rule 28 to adopt a nominal or nil cross-charge!

Statutory Valuation: Under Rule 28 read with Rule 30, CareWell Delhi must determine the cross-charge value at 110% of operational cost. With allocable costs of ₹50,00,000, the cross-charge base is ₹55,00,000 (₹50 Lakh × 110%). Delhi HO must issue tax invoices charging 18% IGST (₹9,90,000), which represents a dead, non-creditable tax cost to the hospitals. Managing this risk requires structuring vendor contracts directly at the hospital level to avoid cascading tax losses.

Case Study 4: Treatment of Reverse Charge Mechanism (RCM) Incurred at Head Office

Scenario: FinServ Capital Ltd. in Mumbai (HO) engages an overseas cybersecurity firm based in Singapore to conduct vulnerability testing across all its Indian servers for ₹25,00,000. Under Section 5(3) of the IGST Act read with Notification No. 10/2017-Integrated Tax (Rate), import of services attracts 18% IGST under RCM (₹4,50,000).

Mechanics: An ISD cannot discharge reverse charge tax liabilities. FinServ's regular Mumbai GSTIN must pay ₹4,50,000 in cash via the electronic cash ledger in Table 3.1(d) of Form GSTR-3B and claim ITC in Table 4(A)(1). However, because this third-party input service benefits all branches nationwide, how is the credit distributed? FinServ regular GSTIN issues an internal invoice or transfers the procured service to its ISD registration, which then issues an ISD invoice distributing the ₹4,50,000 credit across branches under Rule 39.

Case Study 5: Re-Allocation upon Turnover Variation & Credit Notes

Scenario: In August 2026, an external software vendor issues a credit note of ₹10,00,000 + ₹1,80,000 IGST to Zenith Technologies Ltd. (ISD) for annual enterprise license discounts. Zenith had distributed the original invoice credit in May 2026 across branches in Tamil Nadu (60%) and Karnataka (40%).

Mechanics: Under Rule 39(1)(h), where an ISD receives a credit note from a vendor, the credit reduced must be apportioned to the recipients in the same ratio in which the original credit was distributed. Zenith issues an ISD Credit Note reducing ₹1,08,000 IGST from Tamil Nadu and ₹72,000 IGST from Karnataka in Form GSTR-6 for August 2026. Both branches record the credit reduction in Table 4(B)(2) of their GSTR-3B.

Case Study 6: Intermediary Third-Party Billing Disguised as Cross-Charge

Scenario: PharmaCorp Ltd. HO in Ahmedabad negotiated a centralized pan-India warehousing contract with a logistics vendor for ₹1 Crore + 18% IGST. Instead of registering as an ISD, PharmaCorp booked the entire ₹18 Lakh ITC in Ahmedabad and raised cross-charge tax invoices of ₹25 Lakh each to its branches in 4 states.

Litigation Risk: Post-Finance Act 2024, the DGGI audits PharmaCorp and issues an SCN proposing to deny the ₹18 Lakh ITC at Ahmedabad on the grounds of contravening Section 20, asserting that third-party services cannot be distributed via cross-charge. PharmaCorp is forced to seek regularization under administrative grievance channels and transition to ISD. With assureTax, such structural misclassifications are flagged proactively before return submission.

Case Study 7: Secondment vs. In-House Employee Cross-Charge Post-Northern Operating Systems

Scenario: MultiNational Corp India (HO in Delhi) has expatriate employees seconded from its foreign parent entity. The Supreme Court in CCCE & ST v. Northern Operating Systems Pvt. Ltd. (NOS) held that secondment of expatriate staff constitutes a taxable import of manpower supply services under RCM.

Interplay: Once Delhi HO pays 18% IGST on expat salary reimbursements under RCM, that cost represents a third-party manpower service procured for the entity. When these expats perform operational tasks for multi-state branches, the credit must be distributed via ISD or factored into cross-charge without double taxation. Corporate tax controllers use assurePractice to maintain robust secondment contracts demonstrating whether staff are direct legal employees or seconded personnel.

6. Step-by-Step Audit & Compliance Verification Protocol

To insulate multi-location corporate groups from GST audits, tax teams should operationalize the following 10-step verification protocol:

7. Comprehensive Practitioner FAQ Bank (16 Detailed Technical FAQs)

Q1: Is ISD registration mandatory for every company having multiple GST registrations?

ISD registration is mandatory under Section 24(viii) and amended Section 20 if the company procures centralized third-party input services (e.g., software, consulting, insurance, cloud services) on behalf of distinct persons. If a company maintains independent local procurement at every branch and incurs zero shared third-party input services, ISD registration is not required.

Q2: Can a company distribute third-party input services via cross-charge invoices instead of registering as an ISD?

No. Following the substitution of Section 20 by the Finance Act, 2024, distributing third-party input services through cross-charge tax invoices is statutorily impermissible. Any taxpayer attempting to bypass ISD risks credit denial at the recipient branches under Section 16(2) and demands for erroneous tax collection under Section 73/74.

Q3: What happens to the past period (July 2017 to March 2024)? Can authorities demand tax for not having an ISD in prior years?

Circular No. 199/11/2023-GST explicitly clarified that for past periods prior to the statutory amendment of Section 20, the ISD mechanism was not mandatory, and taxpayers who distributed common input service credits through cross-charge tax invoices are legally protected, provided tax was duly discharged.

Q4: Does an ISD need to file an annual return in Form GSTR-9?

No. Under Section 44 of the CGST Act, an Input Service Distributor is specifically excluded from the requirement of filing an annual return in Form GSTR-9 and a reconciliation statement in Form GSTR-9C. The compliance obligation is strictly limited to monthly returns in Form GSTR-6.

Q5: Can an ISD distribute input tax credit on capital goods (such as common servers or office laptops)?

No. Under Section 2(61) and Section 20 of the CGST Act, an ISD can distribute credit solely in respect of input services. Credit on capital goods or inputs (physical goods) cannot be distributed through the ISD mechanism. Shared capital goods must be purchased directly by the consuming branch or billed via regular tax invoice under Rule 28.

Q6: How are reverse charge mechanism (RCM) credits handled by an Input Service Distributor?

An ISD cannot pay tax under RCM because it does not possess an electronic cash ledger and is not a supplier of taxable outward services. The regular GSTIN of the Head Office must pay the RCM liability in cash via GSTR-3B, claim ITC, and subsequently distribute the input service credit to recipient branches.

Q7: Can a Head Office issue a Nil cross-charge invoice if all recipient branches are eligible for full ITC?

Yes. Under the Second Proviso to Rule 28 read with CBIC Circular No. 199/11/2023-GST, where the recipient branch is entitled to full input tax credit, any value declared in the tax invoice is deemed to be the Open Market Value. If no invoice is issued, the value of internally generated services is legally accepted as Nil.

Q8: If a branch makes both taxable and exempt supplies, can the Head Office apply the Second Proviso to Rule 28?

No. The Second Proviso strictly applies only where the recipient is eligible for "full input tax credit". If a branch effects exempt supplies and is subject to credit reversals under Section 17(2) and Rule 42, the HO must determine cross-charge valuation under Rule 30 at 110% of operational cost.

Q9: Are Head Office employee salaries required to be included in the cost of cross-charge?

No. Circular No. 199/11/2023-GST established that the salary paid to HO employees is an excluded transaction under Schedule III (employer-employee relationship) and is not mandatory to be included when computing the cost of internally generated services provided to distinct persons.

Q10: What is the due date for filing Form GSTR-6, and is there a late fee for delayed filing?

Form GSTR-6 must be filed electronically on or before the 13th day of the month succeeding the tax period. Under Section 47 of the CGST Act, late filing attracts a late fee of ₹50 per day (₹25 CGST + ₹25 SGST), subject to statutory caps.

Q11: Can an ISD distribute credit to a branch that is not operational in the current financial year?

No. Under Rule 39(1)(d), credit is distributed only among recipient distinct persons who are operational during the relevant period. If a branch is closed or has not commenced operations, it is excluded from the turnover allocation denominator.

Q12: How is credit distributed if an input service benefits only two out of five distinct branches?

Under Rule 39(1)(e), if an input service is attributable to specific recipient branches, the credit must be distributed only among those specific operational recipients, utilizing the ratio of their turnover relative to the aggregate turnover of those specific beneficiaries.

Q13: Does an ISD invoice require an e-Invoice IRN (Invoice Reference Number)?

No. Under Rule 48(4) of the CGST Rules, an Input Service Distributor is specifically exempt from the mandatory electronic invoicing (e-invoicing) regime. ISD invoices are generated directly from accounting software without generating an IRN from the IRP portal.

Q14: What documentation is required to support the cross-charge of internally generated services during a tax audit?

Companies should maintain: (a) Service Level Agreements (SLAs) or operational charters defining shared services; (b) Cost-center allocation sheets detailing excluded employee salaries and included operating overheads; (c) Turnover ratio worksheets; and (d) Cross-charge tax invoices matched with recipient GSTR-2B entries.

Q15: Can an ISD distribute blocked input tax credits under Section 17(5)?

Yes. Under Rule 39(1)(b), the ISD is legally required to distribute both eligible and ineligible credits separately. The ISD invoice and GSTR-6 must explicitly categorize blocked credits so that recipient branches record them under Table 4(B)(1) of Form GSTR-3B as ineligible.

Q16: How does the assureOffice suite streamline ISD and cross-charge compliance?

The assureOffice suite integrates assureTax for automated GSTR-6 filing and Rule 39 turnover allocations, assureFinancials for multi-GSTIN cost-center isolation, and assurePractice for centralized digital audit documentation and notice tracking.