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International taxation: residence, DTAA and transfer pricing

Chartered Accountancy (CA (ICAI)) · Taxation · free study notes for exams, placements and interviews

In short

International taxation decides who India may tax, on what income, and how double taxation is removed when two countries both claim the same income. The chain is always the same: residential status → scope of total income → source rules for a non-resident → treaty relief under a Double Taxation Avoidance Agreement (DTAA) → arm's-length pricing of cross-border dealings between associated enterprises. It is examined in CA Final Paper 4 (International Taxation, Part II) and CA Inter Taxation, and in placement interviews for Big Four and Next Six transfer-pricing and international-tax teams, in-house tax cells of Infosys, TCS, Reliance, Maruti and every Indian subsidiary of a foreign group. Note the law base: the Income-tax Act, 2025 replaced the Income-tax Act, 1961 with effect from 1 April 2026 and renumbered all sections and forms, so quote a provision by name where the new number is not certain; the substantive concepts below are unchanged.

Explained

1. Residential status - the gateway

Head of incomeRORRNORNon-resident
Indian income (received/accrued/deemed to accrue in India)TaxableTaxableTaxable
Foreign business income controlled from IndiaTaxableTaxableNot taxable
Foreign professional income set up in IndiaTaxableTaxableNot taxable
Any other foreign incomeTaxableNot taxableNot taxable
Past untaxed foreign income remitted to IndiaNot taxableNot taxableNot taxable

2. Source rules - when India taxes a non-resident

3. DTAA - structure and relief

4. Transfer pricing - the arm's length principle

5. Other cross-border provisions worth knowing

Key points

Formulas and examples

Days of stay test: Resident if days in PY ≥ 182, OR (days in PY ≥ 60 AND days in 4 preceding PYs ≥ 365)
Not ordinarily resident if NR in 9 of 10 preceding PYs, OR stay in 7 preceding PYs ≤ 729 days
Unilateral / bilateral credit relief: Relief = Doubly taxed income × lower of (Indian average rate of tax, foreign rate of tax)
Indian average rate = Total Indian tax (incl. surcharge and cess) ÷ Total income
Foreign Tax Credit = min (Foreign tax paid, Indian tax payable on that foreign income)
TNMM operating margin (OP/OC) = Operating profit ÷ Operating cost × 100
Arm's length revenue = Operating cost × (1 + arm's length margin)
TP adjustment = Arm's length revenue − Actual revenue (only if positive for Indian income)
Data set range: 35th percentile = if 35% of n is a whole number, the mean of the value at that place and the value at the next higher place; otherwise the value at the next higher place. 65th percentile likewise.
(n = number of comparables; if n ≥ 6 the range applies; if the transaction price lies outside the range, the ALP is the median, computed the same way using 50%.)
Thin cap disallowance = Interest to non-resident AE − 30% of EBITDA (if interest > ₹1 crore)

Example 1 - Residential status of a visiting NRI. Mr Arun, an Indian citizen employed in Dubai, visits India in PY 2026-27 for 135 days. His stay in the four preceding years totals 400 days. His income from an Indian house property and Indian interest is ₹18,00,000; the rest is Dubai salary.

  1. Basic condition 1: 135 < 182 → not satisfied.
  2. He is a visiting Indian citizen, but non-foreign-source income ₹18 lakh > ₹15 lakh, so the threshold is 120 days, not 182.
  3. 135 ≥ 120 and 400 ≥ 365 → basic condition 2 satisfied → Resident.
  4. A 120-day resident is always Not Ordinarily Resident.

Answer: RNOR. His Dubai salary (foreign-source, not from a business controlled from India) is not taxable in India; the ₹18 lakh Indian income is.

Example 2 - Bilateral relief / foreign tax credit. Ms Priya, ROR, has Indian business income ₹12,00,000 and Country X royalty income ₹4,00,000 (gross), on which Country X withheld 25% = ₹1,00,000. The India-X DTAA allows credit. Old regime, no deductions.

  1. Total income = 12,00,000 + 4,00,000 = ₹16,00,000.
  2. Tax (old slabs): nil to 2.5L = 0; 2.5-5L @5% = 12,500; 5-10L @20% = 1,00,000; 10-16L @30% = 1,80,000 → ₹2,92,500.
  3. Add 4% cess = ₹11,700 → total Indian tax = ₹3,04,200.
  4. Average rate = 3,04,200 ÷ 16,00,000 = 19.0125%. Foreign rate = 25%.
  5. Relief = 4,00,000 × lower of (19.0125%, 25%) = 4,00,000 × 19.0125% = ₹76,050.
  6. Net tax payable in India = 3,04,200 − 76,050 = ₹2,28,150. The unrelieved ₹23,950 of Country X tax is not refundable in India.

*Form 67 with proof of foreign tax payment must be filed to claim this relief.*

Example 3 - TNMM adjustment for an IT captive. Delta India provides software development services only to its US parent. Operating cost ₹50 crore, revenue ₹56 crore.

  1. Tested-party margin (OP/OC) = (56 − 50)/50 = 6/50 = 12%.
  2. Comparables' OP/OC: 11%, 13%, 14%, 16%, 18%, 21% → n = 6, so the range applies.
  3. 35th percentile: 35% of 6 = 2.1 → the value at the 3rd place from the bottom = 14%. 65th percentile: 65% of 6 = 3.9 → value at the 4th place = 16%. Range = 14% to 16%.
  4. 12% is below the range → the ALP is the median of the data set: 50% of 6 = 3, a whole number, so the median is the mean of the 3rd and 4th values = (14 + 16)/2 = 15%.
  5. Arm's length revenue = 50 × 1.15 = ₹57.5 crore.
  6. TP adjustment = 57.5 − 56 = ₹1.5 crore, added to Delta India's income. No deduction under section 10AA/Chapter VI-A is available on this ₹1.5 crore.

Example 4 - Royalty to a non-resident: treaty versus Act. An Indian company pays royalty of ₹1,00,00,000 to a German company with no PE in India. The Act's rate for royalty of a foreign company is 20% (plus surcharge and cess); the India-Germany DTAA caps royalty tax at 10%.

  1. Act: 20% + 4% cess (ignore surcharge, income ≤ ₹1 crore) = 20.8% → ₹20,80,000.
  2. Treaty: 10%, with no surcharge or cess added → ₹10,00,000.
  3. Beneficial provision applies → withhold ₹10,00,000, provided the German company furnishes a TRC, Form 10F and PAN (or prescribed details).
  4. Grossing up: if the contract is net-of-tax at ₹1 crore, gross = 1,00,00,000 ÷ (1 − 0.10) = ₹1,11,11,111, tax = ₹11,11,111.

Example 5 - Thin capitalisation. Zeta India has EBITDA of ₹40 crore and pays interest of ₹18 crore to its Singapore parent (an AE).

  1. Interest exceeds ₹1 crore → the limitation applies.
  2. Ceiling = 30% × 40 = ₹12 crore.
  3. Excess interest disallowed = 18 − 12 = ₹6 crore, added back this year.
  4. The ₹6 crore is carried forward for up to 8 assessment years and allowed against future headroom.
FeatureExemption methodCredit method
Who taxesOnly one countryBoth, with credit in residence state
Income in residence-state baseExcluded (or only for rate)Included
Benefit of low source-state taxRetained by taxpayerNeutralised by residence state
Indian practiceRare (a few treaty articles)Standard - ordinary credit
TestThrustTypical use in India
CUPPriceCommodities, interest, royalty
RPMGross margin of resellerPure distributors
CPMCost mark-upContract manufacturing, support services
PSMSplit of combined profitIntegrated operations, unique intangibles
TNMMNet marginIT/ITES captives - most common
Other methodPrice charged or quotableGuarantees, one-off deals

Where it is used

Interview questions

Common mistakes

Related topics

Corporate tax basics · TDS and tax filing basics · Income tax basics · The Income-tax Act 2025: transition from the 1961 Act · Capital gains · Income tax assessments, notices, appeals and faceless proceedings

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