Sections 178 and 180 explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Section 178 is the gateway of Chapter XI: an arrangement entered into by an assessee may be declared an impermissible avoidance arrangement, and the tax consequence determined under the Chapter. Section 180 lists when an arrangement is deemed to lack commercial substance, which is one of the four tests of an impermissible avoidance arrangement in section 179. This article reads both as per the Income-tax Act, 2025 (30 of 2025) as amended by the Finance Act, 2026.
Under section 178, irrespective of anything else in the Act, an arrangement can be declared an impermissible avoidance arrangement, and the rule can be applied to any step or part of an arrangement. Under section 180, an arrangement is deemed to lack commercial substance if its substance differs from its form, if it involves round trip financing, an accommodating party, offsetting elements or a disguising transaction, if location or residence has no substantial commercial purpose, or if it does not significantly affect business risks or net cash flows.
Scope
Both sections are in Chapter XI, "General anti-avoidance rule". The Act came into force on the 1st April, 2026 (section 1(3)), save as otherwise provided. Later amendments, rules and notifications should be checked.
Section 179 sits between them and defines the impermissible avoidance arrangement; our post on section 179 covers it. The consequences are in sections 181 to 183 and the definitions in section 184. For the Chapter overview, see Chapter XI of the Income-tax Act, 2025. If you are structuring a transaction and want its commercial substance reviewed, our tax planning advisory team can help.
Section 178: applicability
Section 178(1)
Irrespective of anything contained in the Act, an arrangement entered into by an assessee may be declared to be an impermissible avoidance arrangement, and the consequence in relation to tax arising from it may be determined subject to the provisions of Chapter XI.
Section 178(2)
The provisions of the Chapter may be applied to any step in, or a part of, the arrangement as they are applicable to the arrangement. A transaction cannot be defended by pointing to the whole while a single step carries the tax benefit.
The sub-section is permissive: "may be declared". The Act does not say in this section who declares or by what procedure; the section leads into the tests in section 179 and the consequences in section 181. Section 183(b) leaves guidelines and conditions for application to be prescribed.
Section 180: arrangement to lack commercial substance
Section 180(1): when an arrangement is deemed to lack commercial substance
| Clause | Test |
|---|---|
| (a) | the substance or effect of the arrangement as a whole is inconsistent with, or differs significantly from, the form of its individual steps or a part |
| (b) | it involves or includes (i) round trip financing; (ii) an accommodating party; (iii) elements that have the effect of offsetting or cancelling each other; or (iv) a transaction conducted through one or more persons which disguises the value, location, source, ownership or control of funds which is the subject matter of the transaction |
| (c) | it involves the location of an asset or of a transaction or of the place of residence of any party which is without any substantial commercial purpose other than obtaining a tax benefit (but for the provisions of the Chapter) for a party |
| (d) | it does not have a significant effect upon the business risks or net cash flows of any party to the arrangement apart from any effect attributable to the tax benefit that would be obtained (but for the provisions of the Chapter) |
Any one clause is enough ("if ... (a) or (b) or (c) or (d)").
Section 180(2): round trip financing
Round trip financing includes any arrangement in which, through a series of transactions, (a) funds are transferred among the parties to the arrangement and (b) the transactions do not have any substantial commercial purpose other than obtaining the tax benefit (but for the provisions of the Chapter), without having any regard to:
- (A) whether or not the funds involved can be traced to any funds transferred to, or received by, any party in connection with the arrangement;
- (B) the time, or sequence, in which the funds are transferred or received; or
- (C) the means by, or manner in, or mode through, which the funds are transferred or received.
So tracing is not required, and neither timing nor mode of transfer excuses an arrangement.
Section 180(3): factors that are relevant but not sufficient
The following may be relevant but are not sufficient for determining whether an arrangement lacks commercial substance:
- the period or time for which the arrangement (including operations in it) exists;
- the fact of payment of taxes, directly or indirectly, under the arrangement; and
- the fact that an exit route (including transfer of any activity, business or operations) is provided by the arrangement.
The three can colour the view but cannot decide it alone. The fact that tax has been paid, for instance, does not by itself show that substance exists.
Where the two sections fit
Section 179(1) says an impermissible avoidance arrangement is one whose main purpose is to obtain a tax benefit and which satisfies at least one of four tests: rights or obligations not ordinarily created at arm's length; misuse or abuse of the Act; lack of commercial substance (or deemed lack under section 180); or means not ordinarily employed for bona fide purposes. Section 178 is the entry point; section 180 feeds one of the four tests. The definitions of "accommodating party", "arrangement", "step" and "tax benefit" are in section 184.
A worked example
Names and amounts are invented; the clauses are those of section 180.
Harini Traders Private Limited borrows Rs. 50,00,000 from Orbit Finance Limited and, through a series of transfers between group companies, the same funds return to Orbit as a deposit by another group entity. Each step is documented; no commercial purpose appears other than a tax benefit.
- Under section 180(1)(b)(i) and (2), this is round trip financing, whether or not the funds can be traced, and whatever the timing or mode of transfer.
- If Orbit is a party whose participation has the main purpose of securing the tax benefit for Harini, it is an accommodating party (section 180(1)(b)(ii); defined in section 184).
- The payment of tax on the interest by Orbit does not by itself prove substance (section 180(3)(b)).
- Because the arrangement is deemed to lack commercial substance, it meets one test for an impermissible avoidance arrangement under section 179(1)(c), provided the main purpose is to obtain a tax benefit. Under section 178(2), the Chapter can be applied to a single step, such as the deposit that closes the loop.
The result for a real arrangement depends on all four parts of section 179 and on the consequences in section 181.
Need help reviewing the substance of an arrangement?
If a transaction has a step whose only purpose is a tax benefit, or funds that end where they began, the question is whether section 180 deems it to lack commercial substance. Our tax planning advisory service can review the structure before it is implemented.
Key takeaways
- Section 178 applies irrespective of anything else in the Act and can reach any step or part of an arrangement.
- Section 180(1) lists four routes to a deemed lack of commercial substance; one is enough.
- Round trip financing is judged without regard to tracing, timing or mode of transfer.
- The duration of the arrangement, payment of taxes and an exit route are relevant but not sufficient.
- Lack of commercial substance is only one test under section 179; the main purpose must be to obtain a tax benefit.
Read next
- Section 179: impermissible avoidance arrangement
- Sections 181 to 183: consequences and application of Chapter XI
- Section 184: definitions for the general anti-avoidance rule
- Chapter XI of the Income-tax Act, 2025
Disclaimer: Based on the Income-tax Act, 2025 (30 of 2025) as amended by the Finance Act, 2026, as consulted on 2 October 2026. It explains the words of the Act only; the Income-tax Rules, 2026, notifications, circulars, later amendments and the way the tax authorities and courts apply these provisions should be checked. This article is general information, not legal advice; check the official text before acting.