India's recent amendment to its Double Taxation Avoidance Agreement (DTAA) with Sri Lanka marks more than a routine treaty update, with tax experts saying it reflects a global shift towards stronger safeguards against tax avoidance and underscores the need for Sri Lanka to modernise its broader tax treaty framework.
According to Deloitte Sri Lanka, the changes align with evolving international tax standards and raise an important question as to whether Sri Lanka should review and update its network of tax treaties to remain competitive while complying with global best practices.
The Protocol amending the India–Sri Lanka DTAA was signed on 16 December 2024 and officially entered into force on 19 June 2026 after both countries completed their respective domestic approval processes. India formally notified the Protocol on 16 July 2026, with the revised provisions set to apply in India for fiscal years beginning on or after 1 April 2027.
The updated agreement introduces two significant measures aimed at curbing tax avoidance and preventing the misuse of treaty benefits.
The first amendment revises the treaty's preamble to clearly state that its objective is to eliminate double taxation without creating opportunities for non-taxation or reduced taxation through tax evasion, tax avoidance, or treaty-shopping arrangements.
The second introduces the Principal Purpose Test (PPT), an internationally recognised anti-abuse rule that allows tax authorities to deny treaty benefits if one of the principal purposes of a transaction or business structure is to obtain a tax advantage.
Under the new framework, legitimate commercial investments and genuine business activities will continue to qualify for treaty benefits, while structures established primarily for tax planning without substantial economic purpose may no longer be eligible.
According to Deloitte Sri Lanka, the amendments reflect the growing international emphasis on transparency, substance, and responsible cross-border taxation, highlighting the importance of modernising Sri Lanka's tax treaty network to align with global standards and maintain investor confidence.
Sri Lanka Economic and Investment Forum to Spotlight Global Growth Opportunities
The Sri Lanka Economic & Investment Summit (SLEIS) 2026 will bring together government leaders, policymakers, businesses, investors, development partners, and international experts to discuss the country's economic outlook, reform agenda, and emerging investment opportunities, organisers have announced.
Organised by the Ceylon Chamber of Commerce, the two-day summit will be held on 12 and 13 October at the Shangri-La Colombo, providing a platform for dialogue between the public and private sectors on Sri Lanka's next phase of economic transformation.
According to the Chamber, this year's summit comes at a pivotal stage in Sri Lanka's economic recovery as the country shifts its focus from macroeconomic stabilisation towards sustained private sector-led growth and deeper integration with regional and global markets.
The event will feature keynote speeches, high-level panel discussions, sector-specific sessions, investor engagement opportunities, and business networking activities aimed at fostering collaboration and promoting investment.
Discussions will focus on strategies to strengthen Sri Lanka's competitiveness, attract foreign and domestic investment, expand exports, and position the country within Asia's evolving economic landscape. Participants will also examine the policies, partnerships, and investment opportunities needed to accelerate long-term economic growth.
The organisers said further details on the summit's agenda, speakers, and session topics will be announced in the coming weeks.
Registrations are now open for businesses, investors, and stakeholders interested in participating in the Sri Lanka Economic & Investment Summit 2026.
India’s Tax Treaty Reforms Underscore Need for Sri Lanka to Modernise Its Tax Treaty Network
