Treaty taxation of permanent-establishment income turns on treaty characterisation, proof of head-office , and refund-interest treatment.

Receipts from head office services linked to an Indian permanent establishment must be characterised under the treaty by examining whether they fall within the protocol's protected categories, rather than being taxed automatically as fee for technical services; the tax treatment depends on the nature of the income and its connection with the establishment. Head-office office and administrative claims are deductible only on reliable proof that they were actually incurred for the permanent establishment, subject to domestic-law limits; unsupported or markup-based claims are not allowable. Interest on an income-tax refund may fall within the business profits article where the underlying debt claim is effectively connected with the permanent establishment, displacing the concessional interest article.

---

---

Issues: (i) Whether receipts from services rendered by the head office were taxable in India as fee for technical services or as business profits in relation to the permanent establishment; (ii) Whether office and administrative costs charged by the head office were deductible without disallowance; (iii) Whether interest on income-tax refund was taxable as business profits under the treaty.

Issue (i): Whether receipts from services rendered by the head office were taxable in India as fee for technical services or as business profits in relation to the permanent establishment.

Analysis: The receipts arose from services connected with the airport management arrangement and were linked to the Indian permanent establishment. The treaty provision dealing with fee for technical services could be displaced where the non-resident carried on business through a permanent establishment in the other contracting state and the income was connected with that establishment. The protocol further protected specified income from planning, project, construction, research, and technical services from attribution to the permanent establishment. The taxable character therefore depended on the nature of the income and whether it fell within the protected categories.

Conclusion: The receipts were not to be taxed as fee for technical services merely because they were connected with the permanent establishment; the Assessing Officer was directed to examine whether the income fell within the protected protocol category and exclude such income from tax in India.

Issue (ii): Whether office and administrative costs charged by the head office were deductible without disallowance.

Analysis: Deduction of head-office expenditure directly relatable to the permanent establishment requires proof that the expenditure was actually incurred for the permanent establishment. On the record, the assessee did not establish through authentic evidence that the claimed expenses were incurred exclusively for the permanent establishment, and the departmental finding that the claim represented a markup on certain expenses remained uncontroverted. The treaty permitted deduction of expenditure subject to the limitation of domestic law.

Conclusion: The disallowance was upheld and the claim for deduction failed.

Issue (iii): Whether interest on income-tax refund was taxable as business profits under the treaty.

Analysis: The treaty provision on interest specifically carved out an exception where the debt claim in respect of which interest was paid was effectively connected with the permanent establishment, in which event the business profits article applied. The interest on income-tax refund was held to fall within that exception and to be governed by the business profits article rather than the concessional interest article.

Conclusion: The interest on income-tax refund was taxable as business profits and the assessee's claim for taxation at the concessional rate was rejected.

Final Conclusion: The appeals succeeded only to the extent of the head-office service receipts issue, while the expenditure disallowance and interest-on-refund issues were decided against the assessee; the remaining grounds were either not pressed or consequential.

Ratio Decidendi: Where treaty provisions exclude specified income connected with a permanent establishment from attribution, the taxability turns on the nature of the income and its treaty characterisation, and head-office expenditure is deductible only when the assessee proves with reliable evidence that it was actually incurred for the permanent establishment.

---