Tiger Global Tax Ruling Prompts GAAR Grandfathering Review for Foreign Investors

(INDIA) — India’s Central Board of Direct Taxes amended the GAAR grandfathering rules on 31 March 2026, shielding income from the transfer of investments made before 1 April 2017 even as the Supreme Court’s Tiger Global ruling kept wider offshore structures under scrutiny.

The change, issued through Notification No. 54/2026, has sharpened attention on a question that sits at the heart of cross-border investing into India: whether an old investment remains protected if the tax authorities challenge the broader arrangement around it.

That question has gained force after the Tiger Global-Flipkart dispute, where Mauritius-based entities sought tax exemption under the India-Mauritius treaty and the court examined treaty entitlement, conduit concerns and substance-over-form principles.

GAAR, short for General Anti-Avoidance Rule, is an anti-abuse mechanism under Indian tax law. It allows tax authorities to deny tax benefits where an arrangement amounts to an impermissible avoidance arrangement.

Chapter X-A of the Income-tax Act brought that framework into the statute book to address aggressive tax planning through complex structures. Section 96 defines an impermissible avoidance arrangement as one whose main purpose, or one of whose main purposes, is to obtain a tax benefit and that also meets prescribed conditions.

Indian law does not treat every tax-efficient structure as suspect. But once authorities conclude that a structure lacks commercial substance, misuses the law or exists mainly to avoid Indian tax, GAAR can deny benefits, recharacterise steps in a transaction, treat parties differently or shut down treaty claims.

That power matters most in cross-border deals. Investments into India often pass through treaty jurisdictions such as Mauritius, Singapore, the Netherlands or Cyprus, and those routes can deliver favourable capital gains treatment under a Double Taxation Avoidance Agreement, or DTAA.

If GAAR applies, the department can argue that an investor cannot rely on that treaty outcome. A holding company with no real office, no employees, no independent decision-making and no beneficial ownership can invite scrutiny as a conduit rather than a genuine investor.

Grandfathering addresses a narrower point. It protects older investments from a later anti-abuse rule, and in the GAAR context the dividing line is 1 April 2017.

GAAR became operational from assessment year 2018-19. Investors who acquired shares or similar instruments before 1 April 2017 argued that a later exit should not trigger GAAR merely because the transfer took place after the rule came into force.

That protection now appears in clearer terms after the 2026 amendment. The revised Rule 10U says GAAR shall not apply to income accruing, arising, received or deemed to accrue, arise or be received from transfer of investments made before 1 April 2017 by that person.

The amended Rule 10U(2) goes further and draws the line with unusual precision. Chapter X-A applies to any arrangement, regardless of when it was entered into, where the tax benefit arises on or after 1 April 2017, except for income arising from transfer of investments made before 1 April 2017.

The Explanatory Memorandum said the amendment has the effect that Chapter X-A shall not be invoked where income arises from transfer of investments made before 1 April 2017. CBDT also issued a corresponding amendment for the Income-tax Rules, 2026 through Notification No. 55/2026.

The tension that produced the dispute lies in two different legal ideas: investment and arrangement. An investment is the asset held by the investor, such as equity shares, compulsorily convertible preference shares, compulsorily convertible debentures or another capital instrument.

An arrangement is much wider. It can include the holding structure, routing through an intermediate company, shareholder agreements, funding pattern, board control, management decisions, beneficial ownership, tax residency certificate, treaty claim and exit mechanism.

That distinction matters because an investment may predate 1 April 2017 while the arrangement continues to produce tax benefits after that date. GAAR grandfathering protects the transfer income from the old investment; it does not automatically insulate the full structure from examination.

Tiger Global brought that distinction into sharper focus. The case arose from the Walmart-Flipkart transaction, in which Mauritius-based Tiger Global entities sold shares and claimed treaty relief under the India-Mauritius DTAA.

The Supreme Court denied the tax exemption claim and held that Tax Residency Certificates are not conclusive proof of treaty entitlement. The court also treated the Mauritius entities as prima facie conduits and discussed the role of substance-over-form principles in treaty cases.

Judges noted that the India-Mauritius route had supported foreign capital inflows, but they also referred to concerns that entities were being incorporated in Mauritius solely to obtain treaty benefits. The judgment linked those concerns to treaty shopping, tax avoidance and double non-taxation.

That reasoning did not erase the new statutory protection for old investments. But it did reinforce a point that runs through GAAR and the Tiger Global dispute alike: treaty residence on paper does not end the inquiry if the structure lacks commercial substance.

A Tax Residency Certificate remains an important document in a treaty claim. The Supreme Court said, however, that section 90(4) treats the certificate as an eligibility condition and not as sufficient evidence of residency in every case.

The court added that a TRC is not binding on a statutory authority or court unless that authority or court examines it and reaches its own conclusion. That leaves room for the department to question beneficial ownership, control, funding and business purpose.

Commercial substance sits at the centre of that exercise. A stronger structure usually shows real business reasons for using the jurisdiction, independent board decision-making, real control and management, proper banking arrangements, regulatory compliance, economic risk and beneficial ownership of income.

Weaker structures show the opposite. An entity with negligible or nil operations, no real decision-making power, no genuine commercial role and no economic risk is more vulnerable to being treated as a shell or conduit.

The amended rule does not change that analysis for treaty claims outside the protected transfer income. It focuses on income from transfer of investments made before 1 April 2017, not on every dividend, interest stream, fee payment or treaty benefit that may arise within the same offshore setup.

That means the shape of the asset still matters. Equity shares, compulsorily convertible preference shares, compulsorily convertible debentures and other capital instruments can fall within the idea of an investment for GAAR grandfathering, and shares received on a pre-2017 conversion may also be traced back to the earlier instrument where the original terms were fixed before 1 April 2017.

Bonus shares, split shares or consolidated shares linked to original pre-2017 holdings may also come into the picture, depending on the facts. By contrast, a loan agreement, lease arrangement, service contract or management fee arrangement does not automatically become an investment simply because it existed before that date.

The meaning of transfer also stretches beyond an outright sale. For capital gains purposes it can include sale, exchange, relinquishment, extinguishment of rights, compulsory acquisition, conversion of a capital asset into stock-in-trade and other transactions that produce a capital gains event.

Two questions follow from that. Was the investment made before 1 April 2017 by the person claiming protection, and does the income arise from transfer of that investment.

If both answers are yes, amended Rule 10U offers strong protection against GAAR for that transfer income. If the income comes from something else, or if the claimant cannot tie the gain back to the qualifying pre-2017 investment, the shelter narrows quickly.

That split produces different outcomes across common structures. A Mauritius fund that acquired shares in an Indian company in 2015, maintained real fund documents, board meetings, bank accounts, audited accounts and commercial decision-making, and then sold those shares in 2026 would fall closer to the protected side of the rule.

A shell company created only to route money into India looks different even if it held a pre-2017 asset. The transfer income may still claim GAAR grandfathering under the amended rule, but authorities can continue to examine treaty eligibility, beneficial ownership and whether the entity served only as a conduit.

Convertible instruments create another layer. A foreign investor that subscribed to compulsorily convertible debentures in 2016, with conversion terms fixed at issue, and later sold the equity received on conversion in 2026 may argue that the investment traces back to the original pre-2017 instrument.

Loan structures stand on weaker footing. Interest income or repayment under a pre-2017 loan does not automatically qualify because the amended rule protects income from transfer of investments, not every return generated inside an old cross-border relationship.

Post-2017 acquisitions stand outside the grandfathering line altogether. A Singapore company that acquired Indian shares in 2019 and later sold them in 2026 cannot rely on pre-2017 protection, and GAAR, treaty limitation clauses, principal purpose tests, beneficial ownership principles and substance-over-form analysis can all come into play.

The departmental inquiry in such cases is likely to turn on specific facts rather than labels. Officials can ask whether the income truly arose from transfer of a pre-1 April 2017 investment, whether the claimant is the same person who made that investment, whether the entity is the beneficial owner, whether control and management genuinely sit in the treaty jurisdiction, and whether other income is being sheltered alongside the transfer gain.

Investors and advisers now have more certainty on one point and less room for broad readings on another. The 2026 amendment gives a defined statutory shield to transfer income from qualifying old investments, but it does not bless every offshore route built around those assets.

That leaves documentation at the centre of any future dispute. Original subscription papers, convertible instrument terms, board approvals, bank remittance records, RBI and FEMA filings, fund documents, board minutes in the treaty jurisdiction, audited accounts, bank statements, beneficial ownership records and sale documents all shape whether an investor can prove both the age of the investment and the substance of the structure.

After Tiger Global, Indian tax authorities have clearer support for looking past form where a treaty claim rests on a shell or conduit. After Notification No. 54/2026, investors with pre-1 April 2017 holdings also have a clearer rule that transfer income from those investments falls outside GAAR, even while the arrangement around them can still face examination.