Taxation & Cross-Border Law
Double Taxation Avoidance in India: When One Income Attracts Two Tax Demands
A software engineer from Bengaluru accepts a two-year assignment in Singapore. Her salary is taxed there because she works and earns in Singapore. When she files her tax return in India, she receives another tax demand on the same income because she continues to qualify as a tax resident in India. A simple question follows: should one income be taxed twice merely because two countries claim the right to tax it?
This is not an uncommon dilemma. As businesses expand across borders and professionals increasingly work, invest and trade internationally, the possibility of the same income being taxed in multiple jurisdictions has become a practical legal problem. Without a clear legal framework, international commerce would become economically inefficient and taxpayers would face unfair financial burdens.
The problem arises because countries adopt different principles for taxation. Some countries tax income based on the source principle, meaning income earned within their territory is taxable irrespective of the taxpayer's residence. Others, including India, also apply the residence principle, under which residents are taxed on their global income as defined under Section 5 of the Income-tax Act, 1961. When both principles operate simultaneously, the same income may fall within the tax jurisdiction of two countries, creating what is known as double taxation.
Double taxation is not merely a financial inconvenience. It discourages foreign investment, increases compliance costs, distorts business decisions and often results in prolonged tax disputes. More importantly, it contradicts the fundamental objective of tax law, which is to collect legitimate revenue without imposing arbitrary or excessive burdens.
Recognising this challenge, India has entered into Double Taxation Avoidance Agreements (DTAAs) with numerous countries. These bilateral treaties allocate taxing rights between two sovereign states and ensure that the same income is not subjected to tax twice. Their objective is not to eliminate taxation altogether, but to determine which country should tax a particular income and to what extent.
The treaty supplements domestic law while protecting taxpayers against excessive taxation.
The legal foundation for these agreements lies in Section 90 of the Income-tax Act, 1961, which empowers the Central Government to enter into tax treaties with foreign countries. Additionally, Section 91 provides unilateral relief in cases where no DTAA exists. Section 90(2) provides an important taxpayer-friendly safeguard: where the provisions of the Income-tax Act and the DTAA differ, the taxpayer may rely upon whichever provision is more beneficial. Thus, the treaty supplements domestic law while protecting taxpayers against excessive taxation.
A DTAA addresses practical issues through clearly defined mechanisms. The first is the tax credit method, where the country of residence allows credit for tax already paid in the source country, subject to rules prescribed under Rule 128 of the Income-tax Rules, 1962. For example, if an Indian resident has already paid tax in the United Kingdom on rental income situated there, India ordinarily permits a credit against its own tax liability, thereby preventing double taxation.
The second mechanism is the exemption method, under which one country agrees not to tax a particular category of income because the other country has already exercised its taxing rights. Although India predominantly follows the tax credit method, exemption provisions exist under certain treaties and for specified categories of income.
Another significant feature of DTAAs is the allocation of taxing rights for different classes of income, including salaries, dividends, royalties, interest, capital gains and business profits. In determining where business profits should be taxed, treaties often employ the concept of a Permanent Establishment (PE), which is also reflected in Explanation 2 to Section 9(1)(i) of the Income-tax Act. Simply earning revenue from another country does not automatically create tax liability there. Taxation generally arises only when the enterprise maintains a sufficient economic presence, such as a fixed place of business.
However, DTAAs are not instruments for tax evasion. Their purpose is to prevent double taxation, not double non-taxation. To curb treaty abuse, India has strengthened its legal framework through the General Anti-Avoidance Rules (GAAR) under Chapter X-A (Sections 95 to 102) and the Multilateral Instrument (MLI) developed under the OECD's Base Erosion and Profit Shifting initiative. These measures prevent taxpayers from engaging in treaty shopping or creating artificial arrangements solely to obtain treaty benefits.
For taxpayers, the practical lesson is straightforward. Whenever income has a foreign element, three questions should be asked before determining tax liability. First, what is the individual's residential status under Indian tax law as per Section 6 of the Income-tax Act? Second, does India have a DTAA with the other country? Third, what relief does the treaty provide for that particular category of income? These questions often determine whether tax is payable once, twice, or only after claiming appropriate relief.
Ultimately, Double Taxation Avoidance Agreements represent more than technical tax instruments. They embody a balance between the sovereign taxing powers of nations and the principle of fairness owed to taxpayers. In an increasingly interconnected global economy, certainty in taxation is as important as taxation itself. By reducing conflicts between jurisdictions and encouraging cross-border investment, DTAAs reinforce a simple legal principle: the law should tax income fairly, but never punish international mobility by taxing the same income twice.