International Tax Case Laws 2026: 20 Important DTAA, PE & Cross-Border Tax Rulings Explained
International taxation in India is increasingly determined not merely by the wording of the Income-tax Act, but by the interaction between Double Taxation Avoidance Agreements (DTAAs), permanent establishment rules, residential status, source rules and judicial interpretation.
Recent decisions of the Supreme Court, High Courts and Income Tax Appellate Tribunal have addressed several recurring questions:
- When does an overseas company create a Permanent Establishment in India?
- Can an Indian subsidiary or consultant constitute a dependent-agent PE?
- How should days be counted for a Service PE?
- How is dual residence resolved under a DTAA?
- When are overseas capital gains taxable in India?
- Are online database subscriptions royalty or fees for technical services?
- Are guarantee commission, aircraft lease rentals and penal interest taxable in India?
- How do these principles affect TDS on foreign remittances and Form 145/Form 146 certification?
These questions have become especially important after the transition to the Income-tax Act, 2025 from 1 April 2026.
Taxpayers dealing with overseas payments should therefore examine not only domestic law but also the applicable DTAA before determining withholding tax or filing Form 145 and Form 146 for foreign remittance.
1. Foreign Subsidiary Performing Services Does Not Automatically Create a PE
CIT v. EXL Service.com Inc
Delhi High Court – [2025] 181 taxmann.com 874
The first case concerns a US company providing BPO-related services to customers outside India.
The foreign company had entered into a services agreement with an Indian group company. The Indian entity provided services relating to the foreign company’s customers and raised invoices on the US company. The core question was whether these arrangements resulted in a Permanent Establishment of the US enterprise in India under Article 5 of the India-USA DTAA.
Article 5 of the India-USA DTAA recognises a fixed-place PE and also contains a service-PE provision where services are furnished in India through employees or other personnel subject to the prescribed conditions.
The broader principle is important:
A group relationship or outsourcing arrangement does not, by itself, establish a PE.
The actual functions, control, place at the foreign enterprise’s disposal and treaty conditions must be examined.
This distinction is highly relevant for multinational companies outsourcing technology, BPO, accounting, consulting or back-office services to India.
For an overview of the treaty provisions themselves, readers may also refer to our detailed guide on the India-USA DTAA.
2. Short-Duration Installation Work and India-Norway DTAA
HAL Offshore Ltd. v. ITO
Delhi ITAT – [2025] 179 taxmann.com 664
An Indian company made payments to a Norwegian resident under a works contract for replacement of defective parts of a ship.
The Norwegian enterprise’s employees remained in India for only 29 days.
Under Article 5 of the India-Norway DTAA, a construction, assembly or installation project constitutes a PE only where the prescribed duration threshold is satisfied.
This illustrates an important international-tax principle:
Physical activity in India does not automatically create a PE; treaty-specific duration thresholds matter.
However, absence of a PE does not always end the analysis.
The character of the payment must still be considered under the relevant DTAA provisions dealing with fees for technical services, business profits or other income.
That distinction is particularly important when determining tax deduction on payments to overseas contractors.
3. ECB Processing Fees: Interest or Fees for Technical Services?
AKA Ausfuhrkreditgesellschaft MBH v. DCIT
Delhi ITAT – [2025] 180 taxmann.com 135
A German bank advanced an External Commercial Borrowing to an Indian borrower. The ECB was guaranteed by Hermes-Deckung, Germany.
The Indian borrower made several payments, including:
- processing or management fees;
- commitment fees; and
- documentation fees.
The issue was whether these amounts should receive the treatment available to interest under Article 11 of the India-Germany DTAA, or whether some payments constituted fees for technical or managerial services.
The practical lesson is important for foreign borrowing transactions:
Every payment connected with a loan is not necessarily “interest”.
The legal character of processing fees, commitment charges, guarantee charges and advisory fees must be separately examined.
This becomes directly relevant while determining withholding tax before an overseas remittance.
Businesses remitting interest, professional fees, royalty or technical-service payments should undertake a DTAA analysis before completing Form 145 and Form 146 filing.
4. Arbitration Compensation Can Retain the Character of Business Income
Fujitsu Ltd. v. ACIT
Delhi ITAT
The presentation discusses a Japanese enterprise which had supplied telecom equipment to an Indian customer.
The customer defaulted on payment, resulting in arbitration. Fujitsu succeeded in arbitration and received compensation relating to the unpaid business dues.
The question was whether the arbitral compensation represented:
- business profits under Article 7, or
- residual other income under Article 22 of the India-Japan DTAA.
The underlying principle is particularly useful:
The character of compensation normally has to be examined with reference to the underlying transaction for which compensation was received.
A payment does not automatically become an isolated “windfall” merely because it is received pursuant to arbitration.
The official ITAT record confirms the Fujitsu international-tax litigation. (Income Tax Appellate Tribunal)
5. Interest Earned During Arbitration Requires Separate Characterisation
The same Fujitsu litigation also considered interest earned on amounts deposited with an Indian bank during the arbitration process.
The case study asks whether such interest fell within Article 11 of the India-Japan DTAA.
This highlights an important principle:
Compensation and interest connected with the same commercial dispute may nevertheless require separate treaty classification.
For businesses and foreign enterprises, this can affect:
- Indian taxability;
- withholding-tax rate;
- DTAA protection;
- remittance documentation; and
- reporting in Form 145/Form 146.
6. Independent Consultant Does Not Automatically Become a Dependent Agent PE
ESM Group Inc. v. DCIT
Delhi ITAT – [2026] 183 taxmann.com 726
A US enterprise engaged in turnkey projects appointed an independent consultant in India.
The consultant’s role was primarily to identify an Indian project partner which could supply and erect indigenous components.
The issue was whether that consultant constituted a Dependent Agent Permanent Establishment (DAPE) of the US company under Article 5 of the India-USA DTAA.
The case emphasises that a DAPE inquiry normally requires examination of matters such as:
- authority to conclude contracts;
- habitual exercise of such authority;
- securing orders;
- economic and legal independence; and
- whether the Indian agent operates in the ordinary course of its own business.
Merely providing consultancy or introducing business opportunities does not automatically create a dependent-agent PE.
7. Consortium Partner Does Not Automatically Create a Construction PE
The ESM Group litigation also considered whether an Indian consortium partner could create an Indian PE for the foreign consortium member.
Under the India-USA DTAA, construction or installation projects are subject to a specified 120-day threshold.
The presence and activities of one consortium participant therefore cannot automatically be attributed to another without examining:
- contractual responsibility;
- project duration;
- control;
- activities actually carried out; and
- the specific wording of Article 5.
This is highly relevant for EPC contracts, infrastructure projects and international joint ventures.
8. Service PE: Should Vacation and Business-Development Days Be Counted?
CIT v. Clifford Chance Pte Ltd
Delhi High Court – [2025] 181 taxmann.com 254
A Singapore enterprise provided legal advisory services to Indian clients.
Two employees remained in India for approximately 120 days, but only 44 days were stated to involve actual client-service activities. The remaining period involved vacation, business development and other activities.
Article 5(6) of the India-Singapore DTAA creates a Service PE where qualifying services continue beyond the treaty threshold.
The important issue was therefore not simply:
How many days were the employees physically present in India?
but:
How many days were relevant qualifying services actually furnished in India?
This distinction may materially affect the Service PE analysis.
Companies sending employees into India should therefore maintain detailed:
- travel records;
- project records;
- timesheets;
- client-service schedules; and
- employee activity records.
9. Tiger Global: India-Mauritius Treaty and Indirect Transfer of Indian Business
Authority for Advance Rulings v. Tiger Global International II Holdings
The presentation identifies this as an important 2026 Supreme Court decision concerning the India-Mauritius DTAA.
The structure involved:
- US parent-level investment;
- Mauritius investment entities;
- Singapore companies; and
- underlying investments in Indian businesses.
The Supreme Court’s official judgment dated 15 January 2026 confirms that the litigation concerned Mauritian investment entities holding investments ultimately connected with India. (Sci API)
This is among the more significant recent international-tax rulings because it concerns the interaction between:
- treaty entitlement;
- capital gains;
- indirect transfer;
- beneficial ownership and substance;
- treaty shopping / anti-abuse considerations; and
- grandfathering under the India-Mauritius DTAA.
Treaty eligibility cannot be analysed merely from the immediate share-sale transaction.
Corporate structure, treaty history, residence, commercial substance and applicable anti-abuse provisions may all become relevant.
10 & 11. Binny Bansal: Permanent Home and Centre of Vital Interests
Binny Bansal v. DCIT
Bangalore ITAT – IT(IT)A No.571/Bang/2023
This is one of the most practically important rulings for founders, NRIs and globally mobile professionals.
The official ITAT order confirms that the case concerned Assessment Year 2020-21 and was pronounced on 9 January 2026. (Income Tax Appellate Tribunal)
The taxpayer had moved to Singapore with his family. Relevant factors included:
- rented residence in Singapore;
- residential property in India;
- children studying in Singapore;
- employment in Singapore;
- Singapore bank accounts and credit cards;
- investments and economic interests in both jurisdictions; and
- significant continuing connections with India.
The core treaty issue was the tie-breaker rule under Article 4 of the India-Singapore DTAA.
Where a person is treated as resident in both countries, the treaty examines sequentially concepts such as:
- permanent home;
- centre of vital interests;
- habitual abode; and
- other tie-breaker factors, where relevant.
Residential status is not determined merely by citizenship, property ownership or FEMA status.
The entire pattern of personal and economic relations has to be considered.
NRIs, founders and internationally mobile executives may therefore benefit from a structured NRI taxation and FEMA review, particularly where residence can potentially arise in two countries.
12. Does a Leased Aircraft Create a Permanent Establishment in India?
Sky High LXXIX Leasing Co. Ltd. v. ACIT
Mumbai ITAT – [2025] 179 taxmann.com 264
The official ITAT order confirms that the assessee was an Irish tax resident engaged in aircraft leasing and had leased aircraft to Indian airlines on a dry-lease basis. (Income Tax Appellate Tribunal)
The aircraft remained owned by the foreign lessor and was to be returned following completion of the operating lease.
The significant question was:
Does the physical presence of the leased aircraft in India itself constitute a fixed-place PE of the foreign lessor?
The issue illustrates the fundamental “disposal test” in PE jurisprudence.
For a fixed-place PE, the enquiry ordinarily extends beyond whether an asset happens to be situated in India. One must examine whether there is a place of business at the disposal of the foreign enterprise through which its business is carried on.
13. Penal Interest on Delayed Aircraft Lease Rentals
The same aircraft-leasing litigation considered penal interest arising because of delayed payment of lease rentals.
Article 11 of the India-Ireland DTAA specifically addresses the meaning of interest and also contains relevant wording concerning penalty charges for late payment.
This demonstrates why foreign-remittance certification cannot safely be based merely on the description appearing on an invoice.
A remittance described as:
- interest;
- penal interest;
- processing charges;
- reimbursement;
- royalty;
- consultancy fee; or
- management fee
must be analysed according to its legal substance and applicable treaty provision.
14 & 15. Corporate Guarantee Commission: Interest or Other Income?
Johnson Matthey Public Ltd. v. CIT
Delhi High Court – [2024] 162 taxmann.com 865
SLP dismissed by Supreme Court – [2024] 167 taxmann.com 395
The UK parent company gave a corporate guarantee to an overseas bank in connection with lending to its Indian subsidiary and received a guarantee commission from the Indian company.
Two important questions arose:
First: Is guarantee commission “interest” under the India-UK DTAA?
A corporate guarantee does not itself necessarily create a conventional debt claim between guarantor and Indian borrower.
Second: Does the guarantee commission accrue or arise in India?
The source and situs of the income must be separately examined under domestic law and treaty principles.
These issues are highly relevant to multinational groups and cross-border financing arrangements.
16. Can an Indian PE Earn Profit When the Foreign Enterprise Has a Global Loss?
Hyatt International Southwest Asia Ltd. v. ADIT
Delhi High Court – Full Bench
The case concerns a UAE enterprise having a Fixed Place / Service PE in India while suffering losses at the global enterprise level.
The question was whether profit could nevertheless be attributed to its Indian PE under Article 7 of the India-UAE DTAA.
Article 7 applies the separate-enterprise principle: profits attributable to a PE are determined by considering the PE as if it were a distinct and separate enterprise dealing independently with its head office.
The Delhi High Court’s official records confirm Full/Special Bench proceedings concerning Hyatt International Southwest Asia Ltd. (Delhi High Court)
The issue is fundamentally important:
Enterprise-level losses do not necessarily answer the separate question of profit attribution to a profitable PE.
17. Western Union: Liaison Office and Agents in India
DIT v. Western Union Financial Services Inc
Delhi High Court – [2024] 169 taxmann.com 461
The foreign enterprise operated an international money-transfer business and used Indian agents such as:
- banks;
- NBFCs;
- Department of Posts; and
- tour operators.
It also maintained an RBI-approved liaison office performing activities such as liaison, training and distribution of information.
The case brings together three PE concepts:
- Fixed Place PE;
- Service PE; and
- Dependent Agent PE.
The Income Tax Department has itself historically identified Western Union litigation while discussing the international taxation of digital and cross-border businesses. (Etds)
The practical lesson is that the mere existence of local agents, software access or a liaison office should not replace a proper Article 5 analysis.
18 & 19. Online Journals and Databases: FIS or Royalty?
John Wiley and Sons Inc. v. ACIT
Delhi ITAT – 2025
The official ITAT order confirms the case and records that the relevant appeal related to AY 2021-22. (Income Tax Appellate Tribunal)
The foreign company provided Indian customers access to online journals and databases, while its servers/database were located outside India.
Two central questions arose.
Is database subscription income Fees for Included Services?
Under Article 12 of the India-USA DTAA, technical or consultancy services generally need to satisfy the “make available” test where applicable.
Merely providing the benefit of technology does not necessarily mean that technical knowledge, experience, skill, know-how or processes have been made available to the customer.
Is database subscription income royalty?
Another question is whether accessing copyrighted material is equivalent to receiving:
- copyright;
- right to use copyright;
- secret processes;
- know-how; or
- other intellectual-property rights.
The distinction between using copyrighted content and acquiring rights in the copyright itself is fundamental in digital-economy taxation.
The Income Tax Department has also acknowledged that characterisation of digital payments as royalty, FTS or business income is a recurring international-tax challenge. (Etds)
20. Intra-Group Management Services: Can Service Fees Be Royalty?
ACIT v. BCD Travel Services BV
Mumbai ITAT – [2025] 179 taxmann.com 146
The final case study concerns a foreign company rendering various services to an Indian group entity, including:
- finance;
- administration;
- legal;
- account management;
- marketing;
- business solutions; and
- sales support.
The foreign company received service fees from its Indian affiliate.
The issue was whether these payments could constitute royalty under Section 9(1)(vi).
The distinction is practically important.
Merely rendering business or management support does not automatically mean that technical, commercial or scientific know-how has been “imparted”.
The rights actually transferred, information supplied and treaty wording need to be examined carefully.
What These 20 International Tax Case Laws Tell Us
Although the cases involve very different facts, they reveal several common principles.
1. DTAA Comes Before Labels
Descriptions such as “consultancy fee”, “royalty”, “interest”, “management fee” or “reimbursement” are not conclusive.
The underlying rights and obligations matter.
2. PE Is Fundamentally a Facts-and-Treaty Question
An Indian subsidiary, agent, aircraft, employee visit or liaison office does not automatically create a Permanent Establishment.
The correct Article 5 test must be applied.
3. Employee Presence Requires Activity-Level Documentation
Service PE cases increasingly demonstrate the importance of maintaining:
- passports and travel calendars;
- employee timesheets;
- client-engagement records;
- work locations; and
- day-wise activities.
4. Treaty Residence Goes Beyond Number of Days
The Binny Bansal litigation shows why individuals with cross-border lives should examine:
- permanent home;
- spouse and children;
- employment;
- bank accounts;
- investments;
- business interests; and
- centre of vital interests.
For NRIs and returning Indians, these issues should ideally be reviewed as part of a broader NRI tax and FEMA advisory.
5. International Tax Analysis Directly Affects Foreign Remittance Compliance
The case studies are especially relevant to present-day remittance compliance.
From 1 April 2026, the Income-tax Act, 2025 framework uses:
- Section 393 for withholding on relevant payments to non-residents;
- Form 145 in place of earlier Form 15CA; and
- Form 146 in place of earlier Form 15CB.
Our detailed guide explains the Form 145 and Form 146 foreign-remittance rules, DTAA review and CA certification. (CA Alok Kumar)
Where professional certification is required, taxpayers may also refer to our dedicated Form 145 & Form 146 CA Certificate service or Wealth4India’s foreign remittance and funds repatriation service. (CA Alok Kumar)
Checklist Before Making a Payment to a Foreign Company
Before deciding TDS or remitting a cross-border payment, businesses should ordinarily examine:
- Residential status of recipient
- Tax Residency Certificate
- Applicable DTAA
- Form 41 / treaty information requirements, where relevant
- Nature and legal character of payment
- Domestic source rule
- Royalty / FTS / FIS test
- “Make available” requirement, wherever contained in the relevant treaty
- Permanent Establishment exposure
- Beneficial ownership
- Applicable withholding-tax rate
- Section 393 compliance
- Form 145 / Form 146 requirement
- FEMA and authorised-dealer documentation.
This is why a foreign-remittance certificate is ultimately an international-tax opinion supported by facts, not merely a portal-filing exercise.
Frequently Asked Questions
What is Permanent Establishment in international taxation?
A Permanent Establishment or PE generally represents a sufficient business presence of a foreign enterprise in another country to permit taxation of profits attributable to that presence.
The precise definition depends on the relevant DTAA.
Does an Indian subsidiary automatically create a PE of its foreign parent?
No.
Common ownership alone does not automatically establish a PE. The functions, control, premises, agency relationship and applicable Article 5 provisions must be examined.
What is a Service PE?
Some Indian tax treaties deem a foreign enterprise to have a PE where it furnishes services in India through employees or other personnel for more than a specified duration.
The threshold differs between treaties.
What is the “make available” test?
Certain treaties, including the India-USA DTAA, restrict taxation of technical or consultancy services unless technical knowledge, experience, skill, know-how or processes are made available to the recipient so that the recipient can apply them independently.
Does every foreign remittance require Form 146?
No.
The applicable Form 145 and Form 146 filing requirement depends upon the taxability of the remittance, amount, applicable treaty and statutory route.
Can a non-resident use the DTAA if domestic tax law is less favourable?
Treaty benefit is generally examined alongside the applicable domestic-law provisions and statutory treaty rules, subject to residence, documentation, beneficial ownership, anti-abuse provisions and other applicable conditions.
Conclusion
The International Tax Case Laws 2026 demonstrate that cross-border taxation increasingly turns on detailed factual and treaty analysis.
A leased aircraft may not necessarily create a PE. An employee’s physical presence does not necessarily mean that every day counts towards a Service PE. An Indian affiliate or agent does not automatically constitute a PE. Online access to information does not automatically become royalty or technical-service income. Likewise, residence cannot be determined merely by citizenship, FEMA status or ownership of a house.
For businesses, NRIs, multinational groups, exporters, importers and professionals making overseas payments, the practical sequence should therefore be:
Identify the transaction → determine residential status → apply domestic law → examine DTAA → characterise the payment → test PE exposure → determine withholding → complete remittance compliance.
The same analysis now feeds directly into Form 145 and Form 146 certification under the Income-tax Act, 2025.
For practical assistance relating to DTAA analysis, NRI taxation, withholding on non-resident payments, foreign remittances and CA certification, see:
Form 145 & Form 146 – CA Certificate for Foreign Remittance
Foreign Remittance & Funds Repatriation – Wealth4India
Disclaimer: This article is for professional and educational purposes. International-tax outcomes depend heavily on the facts, relevant assessment/tax year, applicable DTAA, treaty protocols, domestic law and subsequent appellate developments.
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