Direct Tax Laws and International Taxation · Assessment of Mutual Associations

Section 159 Double Taxation Relief Under Income-tax Act 2025

Updated 11 October 2026 · Fact-checked

Section 159 of the Income-tax Act, 2025 lets the Central Government agree with a foreign country or specified territory to give double taxation relief, and lets a specified association in India agree with its counterpart in a specified territory. Notified agreements apply to the extent more beneficial to the assessee. Solve questions by checking who signed, the purpose, notification and the assessee's conditions.

Understand Double Taxation Relief for Specified Associations (Section 159)

Double taxation arises when the same income is taxed in India and in another country. Section 159 is the Act's enabling provision for relief by agreement. It sits in the part of the Act dealing with relief, and a treaty is only as useful as the power to make it.

There are two routes. Under sub-section (1), the Central Government may enter into an agreement with the Government of any other country or any specified territory, and may notify provisions needed to implement it. Under sub-section (2), a specified association in India may enter into an agreement with a specified association in the specified territory. The Central Government then notifies provisions to adopt and implement that agreement.

A specified territory is any area outside India that the Central Government notifies as such. A specified association is any institution, association or body, incorporated or not, that functions under a law in force in India or in the specified territory, and that the Central Government notifies as such. Both definitions depend on notification. Without it, the label does not apply.

Sub-section (3) lists what an agreement may be about: (a) relief for income taxed both under this Act and in the other country or territory, or relief for income-tax chargeable under both laws to promote mutual economic relations, trade and investment; (b) avoidance of double taxation, without creating opportunities for non-taxation or reduced taxation through evasion or avoidance, including treaty shopping; (c) exchange of information to prevent evasion or avoidance, or to investigate such cases; and (d) recovery of income-tax. Note the anti-abuse wording in (b). It is part of the text.

Sub-section (4) gives the key effect. Where the agreement grants relief or avoids double taxation, the provisions of the Act apply to the assessee only to the extent they are more beneficial to that assessee. For an agreement under sub-section (2), this applies only once it has been notified. Sub-section (6) carves out an exception: Chapter XI applies even if its provisions are not beneficial to the assessee.

Key rules to remember

Who may enter agreements: S.159(1): Central Government ↔ Government of any other country or specified territory. S.159(2): specified association in India ↔ specified association in specified territory; Under (1) the Government notifies provisions to implement. Under (2) it notifies provisions to adopt and implement.
Purposes of agreement (S.159(3)): (a) relief for doubly taxed income; (b) avoidance of double taxation without non-taxation or reduced taxation; (c) exchange of information; (d) recovery of tax; Clause (b) expressly covers treaty-shopping arrangements aimed at indirect benefit to residents of another country.
Beneficial provision rule (S.159(4)): Tax payable = Act or agreement, whichever is more beneficial to the assessee; Precisely: the Act applies to the extent more beneficial. The agreement must be entered under (1), or under (2) and notified.
Higher company rate (S.159(5)): Foreign company charged at a higher rate than a domestic company ≠ less favourable charge; Same for a company incorporated in the specified territory. It cannot be argued as discrimination.
Override exception (S.159(6)): Chapter XI applies even if not beneficial; Sub-section (4) does not shield the assessee from Chapter XI.
Non-resident claim conditions (S.159(8)): Relief claimed only if (a) residency certificate from the Government of that country or specified territory and (b) other prescribed documents and information; Both conditions must be met.
Meaning of terms (S.159(7)): Agreement definition first; then the Act (with Central Government explanation); then notification; then other Central Government tax Acts, then other Central laws; Applies to undefined terms. Check the order of the hierarchy.

How to solve Double Taxation Relief for Specified Associations (Section 159) questions

Use the same sequence for any question on section 159. It keeps you inside the text and avoids guesswork.

1Identify the parties. Is it the Central Government and a foreign country or specified territory (sub-section 1), or a specified association in India and one in a specified territory (sub-section 2)?
2Check the notification status. A territory or association is 'specified' only if notified. A sub-section (2) agreement needs notification of provisions to adopt it.
3Match the purpose to sub-section (3): relief, avoidance, information exchange or recovery. Note the anti-abuse wording.
4Identify the assessee and apply sub-section (4): the Act applies only to the extent more beneficial than the agreement. Compute both positions if numbers are given.
5Test the exceptions: Chapter XI under sub-section (6); higher company rate under sub-section (5).
6If the assessee is a non-resident, check sub-section (8): residency certificate plus prescribed documents.
7For undefined terms, apply the order in sub-section (7).
8Close with a clear conclusion in one line: relief available or not, and under which provision.

Quickest way: Four-question check

When to use it: For MCQs and short case questions where you have under two minutes.

Who signed: Government or specified association?
Is the territory or association notified?
Which purpose in sub-section (3) fits the facts?
Is the Act more beneficial than the agreement, and does Chapter XI or the non-resident certificate condition change the result?

Common mistakes in Double Taxation Relief for Specified Associations (Section 159)

Saying any Indian association can sign a treaty with any foreign body.
Students read 'association' loosely.
Fix: Only a specified association, notified by the Central Government, and only with a specified association in a specified territory.
Stating that the treaty always overrides the Act.
Memorised as a general principle.
Fix: The Act applies to the extent more beneficial to the assessee, and sub-section (6) makes Chapter XI apply even if not beneficial.
Treating a higher rate on a foreign company as discrimination.
Confusion with non-discrimination clauses in treaties.
Fix: Sub-section (5) says a higher charge on a foreign company, or a company in the specified territory, is not less favourable.
Forgetting the residency certificate for a non-resident.
Focus is on rates, not conditions.
Fix: Cite sub-section (8): certificate from the other Government plus prescribed documents.
Ignoring the anti-abuse limb in the purpose of avoidance.
Students remember only 'avoid double taxation'.
Fix: Add that agreements aim to avoid double taxation without creating non-taxation or reduced taxation, including through treaty shopping.
Applying section 159 to countries with no agreement.
Both sections deal with relief.
Fix: Where no agreement exists under section 159, section 160 gives deduction at the lower of the Indian rate and the foreign rate.

Worked examples

Example 1

Explain who may enter into agreements for double taxation relief under section 159 of the Income-tax Act, 2025, and what such agreements may cover.

Show the solution

Sub-section (1): the Central Government may enter into an agreement with the Government of any other country or any specified territory, and may notify provisions to implement it.
Sub-section (2): a specified association in India may enter into an agreement with a specified association in the specified territory. The Central Government may notify provisions to adopt and implement it.
Define terms: specified territory means an area outside India notified by the Central Government. Specified association means a body, incorporated or not, functioning under a law in force in India or the specified territory, and notified by the Central Government.
Purposes under sub-section (3): relief for doubly taxed income; avoidance of double taxation without opportunities for non-taxation or reduced taxation, including treaty shopping; exchange of information to prevent or investigate evasion or avoidance; recovery of income-tax.

Answer: The Central Government (with a country or specified territory) and notified specified associations (in India and the specified territory) may enter agreements for relief, avoidance of double taxation, information exchange and tax recovery, as set out in section 159(1)-(3).

Example 2

A Mumbai-based specified association has signed an agreement with a specified association in a specified territory. The agreement has not yet been notified by the Central Government. Its member, Mr Rao, asks whether he can claim the agreement's benefit over the Act's provisions. Advise.

Show the solution

The route is sub-section (2): association to association.
Sub-section (4)(b) requires that the agreement has been notified under sub-section (2) before the beneficial-provision rule applies.
The agreement is not notified, so the rule in sub-section (4) does not yet operate for Mr Rao.
Once notified, the Act applies only to the extent more beneficial to him. Chapter XI still applies even if not beneficial (sub-section 6).
If he is a non-resident, he also needs a residency certificate from the Government of that country or specified territory and the prescribed documents (sub-section 8).

Answer: Mr Rao cannot claim the agreement's benefit until the agreement is notified under section 159(2). After notification, he may claim relief subject to the beneficial-provision rule, Chapter XI and, if non-resident, the certificate and documents conditions.

Exam tips

Quote the sub-section numbers. Examiners reward 159(1), (2), (4), (6) and (8) when cited correctly.
In case-scenario MCQs, look first for the word 'notified'. It often decides the answer.
Learn the four purposes in sub-section (3) as a list: relief, avoidance, information, recovery.
Contrast section 159 (agreement exists) with section 160 (no agreement) in one line. This is a common comparison.
End each written answer with a clear conclusion on whether relief is available.

Practice questions from Assessment of Mutual Associations

Double Taxation Relief for Specified Associations (Section 159) in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Double Taxation Relief for Specified Associations (Section 159): frequently asked questions

What is a specified territory under section 159?

It is any area outside India that the Central Government notifies as a specified territory for the purposes of the section. The agreement may be made with the Government of such a territory, as with a country.

Does a treaty always override the Income-tax Act, 2025?

No. Under section 159(4), where an agreement grants relief, the Act applies to the extent it is more beneficial to the assessee. Sub-section (6) also says Chapter XI applies even if not beneficial.

What must a non-resident show to claim treaty relief?

Under section 159(8), the non-resident must obtain a residency certificate from the Government of that country or specified territory and provide other prescribed documents and information.

What happens if there is no agreement with the foreign country?

Section 160 applies. A resident who has paid tax abroad gets a deduction from Indian tax on the doubly taxed income at the Indian rate or the foreign rate, whichever is lower, or at the Indian rate if both are equal.