Section 161 Income Tax Act 2025: How Is Arm's Length Price Applied to Related-Party Transactions?

Section 161 governs the determination of income and deductible expenses arising from international transactions and specified domestic transactions by reference to the arm's length price (ALP). It also covers cost-sharing arrangements between associated enterprises.

Legal position: Section 161 forms part of Chapter X of the Income-tax Act, 2025, effective from 1 April 2026. It broadly corresponds to Section 92 of the Income-tax Act, 1961. The applicable law for an earlier tax period must be checked separately.
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What does Section 161 provide?

Where a transaction falls within the statutory meaning of an international transaction or a specified domestic transaction, the income arising from it must be determined with reference to an arm's length price. The rule also applies to relevant allowances for expenses or interest and to the allocation or contribution of shared costs between associated enterprises.

Section 161 explained, sub-section by sub-section

Section 161(1): Income from covered transactions

Income arising from an international transaction or specified domestic transaction is determined having regard to the arm's length price. Thus, a related-party price cannot automatically be accepted merely because it appears in an invoice or agreement.

Section 161(2): Expenses and interest

An allowance for an expense or interest arising from a covered transaction must also be determined having regard to ALP. The provision therefore addresses both revenue and deductible expenditure.

Section 161(3): Shared costs, services and facilities

Where two or more associated enterprises agree to allocate, apportion or contribute towards costs of a benefit, service or facility, the allocated or contributed amount is determined having regard to the arm's length price of that benefit, service or facility. Supporting evidence of the arrangement, benefit and allocation method is important.

Section 161(4): No reduction of taxable income or increase of loss

The section does not apply where a determination under sub-sections (1), (2) or (3) would reduce chargeable income or increase the loss calculated from the relevant book entries for the tax year. In effect, Section 161 cannot be invoked to obtain a downward adjustment of that kind.

Relevant statutory definitions and connected provisions

Associated enterprise (Section 162): The relationship between enterprises is assessed using statutory tests of participation in management, control or capital and specified deemed-association conditions.
International transaction (Section 163): A qualifying transaction between associated enterprises, with the prescribed non-resident connection and subject matter, including specified property, services, lending, borrowing or other transactions covered by the section.
Specified domestic transaction (Section 164): A domestic transaction falling within the categories and applicable statutory conditions set out in Section 164. Not every domestic related-party transaction automatically qualifies.
Arm's length price (Sections 165 and 173): The price determined in accordance with the statutory transfer-pricing framework, using the prescribed method and relevant rules, for a transaction between persons other than associated enterprises under comparable conditions.
Read together: Section 165 addresses determination of ALP; Section 166 concerns reference to the Transfer Pricing Officer; Section 171 deals with documentation; and Section 172 concerns the accountant's report. These provisions have their own conditions and requirements.

Illustration: Transfer pricing adjustment

Suppose an Indian enterprise charges its overseas associated enterprise Rs. 80 lakh for services, while the appropriately determined arm's length consideration is Rs. 100 lakh. Subject to the applicable methods, comparability analysis and statutory requirements, the income may require an upward adjustment of Rs. 20 lakh. This is illustrative only; actual ALP is not established by a simple estimate.

Practical compliance checklist

  • Identify associated enterprises and classify each transaction under Sections 162 to 164.
  • Review intercompany agreements, invoices, service evidence and cost-allocation workings.
  • Determine ALP under Section 165 and the applicable rules, using defensible comparables and methodology.
  • Assess documentation and reporting obligations under Sections 171 and 172.
  • Consider the restriction in Section 161(4) before making any adjustment.

Frequently asked questions

Does Section 161 apply to every related-party transaction?

No. The transaction must satisfy the statutory definition of an international transaction or specified domestic transaction.

Does Section 161 cover interest paid to an associated enterprise?

Yes. Sub-section (2) expressly covers an allowance for interest arising from a covered transaction, subject to other applicable provisions.

Can Section 161 be used to increase a tax loss?

No. Sub-section (4) prevents application of the section where the determination would increase the loss or reduce chargeable income on the specified book-entry basis.

Which provision of the 1961 Act is comparable?

Section 92 of the Income-tax Act, 1961 is the principal corresponding provision. The numbering and wording must not be confused with Section 161 of the 1961 Act, which concerned representative assessees.

Official statutory resources

Income Tax Department: Income-tax Act 2025Official consolidated Act PDFIncome Tax e-Filing Portal

Updated: 10 November 2026. This article is general legal information; verify the enacted provision, applicable rules and subsequent amendments for a specific transaction.