How DTAA Help NRIs and Global Taxpayers Avoid Paying Tax Twice

A DTAA (Double Taxation Avoidance Agreements) is a tax treaty between two countries or specified territories. Its purpose is to ensure that the same income is not unfairly taxed twice, while still allowing countries to collect tax where they have a legitimate right to do so. In India, the power to enter into such agreements is now covered under Section 159 of the Income-tax Act, 2025. The provision allows the Central Government to enter into agreements for granting relief, avoiding double taxation, promoting trade and investment, exchanging information, preventing tax evasion or avoidance, and recovering taxes. 

For NRIs, foreign investors, Indian residents earning overseas income, and companies operating across borders, DTAA can significantly reduce confusion and tax leakage. However, it is important to understand one thing upfront: DTAA does not automatically make income tax-free. It tells you which country can tax the income, whether the tax rate can be reduced, and how relief can be claimed if tax is paid in both countries.

What is DTAA?

DTAA stands for Double Taxation Avoidance Agreement. It is an agreement between two countries that lays down rules for taxing income that has a connection with both countries.

For example, suppose an Indian resident receives dividend income from shares held in a foreign company. The foreign country may deduct tax because the income arises there. India may also tax the income because the person is an Indian resident. Without a relief mechanism, the same income can suffer tax in both places.

DTAA helps solve this by allowing one of the following outcomes:

So, in simple terms, DTAA ensures that cross-border income is taxed in a fairer and more predictable manner.

Why is DTAA Needed?

Double taxation can discourage people from working, investing, or doing business internationally. If the same income is taxed twice without relief, the effective tax cost can become unreasonably high.

DTAA serves multiple purposes:

The Indian tax law expressly recognises that tax treaties can be entered into not only for granting relief and avoiding double taxation, but also for preventing evasion or avoidance, including treaty-shopping arrangements.

How Does DTAA Work?

DTAA works mainly around two tax principles: the source rule and the residence rule.

Most cross-border tax situations involve both principles. The country where income arises wants to tax it because it is the source country. The country where the taxpayer lives may also tax it because the taxpayer is resident there.

DTAA provides the tie-breaker or relief mechanism. It may say that only one country can tax a particular type of income, or that both can tax it but the residence country must give credit for taxes paid in the source country.

DTAA vs Domestic Income Tax Law: Which One Applies?

A common question is: If the Income-tax Act says one thing and the DTAA says another, which rule should the taxpayer follow?

Under India’s treaty framework, where a DTAA applies, the provisions of the Income-tax Act apply only to the extent they are more beneficial to the assessee. Section 159 of the Income-tax Act, 2025 specifically states this principle for agreements granting relief or avoiding double taxation. 

This means taxpayers should compare:

However, treaty benefit is not automatic. A non-resident claiming relief under an agreement must obtain a certificate of residence from the government of the country or specified territory of residence and provide prescribed documents and information.

Who Can Benefit from DTAA?

DTAA can be useful for several categories of taxpayers.

For NRIs, DTAA is especially relevant because many India-sourced incomes may also be considered taxable in their country of residence. Examples include interest from Indian deposits, rent from Indian property, salary received in India, or capital gains from assets located in India.

Types of Income Commonly Covered Under DTAA

Each DTAA has its own wording, but most treaties cover common categories of income. The treatment may vary depending on the specific country, income type, residency status, and treaty conditions.

Because treaty rates and conditions differ, it is safer not to rely on generic DTAA rate tables. The correct approach is to check the specific DTAA between India and the taxpayer’s country of residence through the Income Tax Department’s DTAA portal. The official portal provides access to India’s treaty resources and treaty comparison tools.

Methods of Relief Under DTAA

DTAA relief is usually provided through one of three broad methods: exemption, tax credit, or deduction. In practice, the foreign tax credit method is common where income is taxed in both countries.

Under the older 1961 Act framework, DTAA relief was associated with Sections 90 and 90A, while unilateral relief where no DTAA existed was under Section 91. The Income Tax Department’s double taxation relief guidance explains that treaty-based relief was allowed under Sections 90 and 90A and unilateral relief applied where no DTAA existed under Section 91. 

Under the Income-tax Act, 2025, the corresponding treaty framework is found in Section 159, while relief in cases where no agreement exists is covered under Section 160. Section 160 allows relief where a resident in India has paid tax in a country with which India has no agreement under Section 159, with deduction computed using the Indian tax rate or the foreign country’s tax rate, whichever is lower.

How to Claim DTAA?

Claiming DTAA benefit depends on the taxpayer’s situation. Broadly, there are two common scenarios:

   1. A non-resident earns income from India and wants treaty relief in India.

   2. An Indian resident earns foreign income and wants credit for tax paid outside India. 

The process, documents, and forms differ in both cases.

1. For Non-Residents Earning Income from India

A non-resident can claim DTAA benefit if India has a tax treaty with the country where the person or entity is resident. This benefit may help reduce tax deducted in India or allow income to be taxed as per the applicable treaty article.

For example, an NRI living in the UAE, USA, UK, Canada, Singapore, or any other treaty country may earn interest, dividend, rent, capital gains, royalty, or fees from India. In such cases, the applicable DTAA should be checked to see whether India’s tax rate can be reduced or whether relief is available.

Under the Income-tax Act, 2025, Form 41 is the self-declaration used by non-resident taxpayers to claim DTAA benefits under Section 159(8). It applies to non-resident individuals, companies, or other entities receiving income from India and seeking treaty relief. 

Steps for Non-Residents to Claim DTAA Benefit

Documents Commonly Required from Non-Residents

A TRC is particularly important because treaty benefit generally cannot be claimed merely by stating that the taxpayer lives abroad. The taxpayer must support the claim with residency evidence. The Income Tax Department’s Form 41 guidance also states that a TRC issued by the tax authority of the residence country must be uploaded and should be valid for the relevant financial year in India. 

2. For Indian Residents Earning Foreign Income

Indian residents are generally taxable in India on their global income. This means that if an Indian resident earns income outside India, the income may be taxed in the foreign country as well as in India.

In such a case, DTAA relief usually works through foreign tax credit. This means the tax paid outside India may be claimed as a credit against Indian tax payable on the same income, subject to conditions.

Under the Income-tax Rules, 2026, Form No. 44 is used for filing the statement of income from a country or specified territory outside India and claiming foreign tax credit under Rule 76. It is required for resident assessees claiming credit for foreign taxes paid. 

Steps for Indian Residents to Claim Foreign Tax Credit

Documents Commonly Required for Foreign Tax Credit

DTAA and Foreign Tax Credit

Foreign tax credit, or FTC, is one of the most practical ways DTAA relief works.

Suppose a resident taxpayer earns income outside India and foreign tax is deducted in that country. If the same income is offered to tax in India, the taxpayer may be eligible to claim credit for foreign tax paid, subject to conditions and documentation.

For the 1961 Act framework, the Income Tax Department states that Form 67 is filed by a resident assessee claiming foreign tax credit under Rule 128 of the Income-tax Rules, 1962. It applies where foreign tax has been paid or deducted on income earned in a foreign country or specified territory and offered to tax in India. 

Under the Income-tax Rules, 2026, the corresponding form is Form No. 44, which is used for filing the statement of income from a country or specified territory outside India and foreign tax credit under Rule 76. It must be filed by a resident assessee having foreign income and intending to claim credit for foreign tax paid outside India on that income.

Form 44 must be filed electronically, and the official FAQ states that it is mandatory in the specified circumstances. It also requires supporting documents such as certificate or statement showing the nature of income and amount of foreign tax deducted or paid. 

Documents Required to Claim DTAA Benefits

The documents required depend on whether the taxpayer is a non-resident claiming treaty relief on Indian income or an Indian resident claiming foreign tax credit.

For Non-Residents Claiming DTAA Benefit on Indian Income

For the current 2025 Act framework, Form 41 enables non-resident taxpayers to claim DTAA benefits between India and their country of residence. It applies to non-resident individuals, companies, or other entities receiving income from India and seeking DTAA benefit, including those seeking lower or nil withholding tax rates under the applicable DTAA. 

The same official note states that a Tax Residency Certificate issued by the tax authority of the residence country must be uploaded with Form 41 and should be valid for the relevant financial year in India. 

For Indian Residents Claiming Foreign Tax Credit

How to Check Whether DTAA Applies

Before claiming DTAA benefit, taxpayers should go through a structured checklist.

DTAA for NRIs: Common India-Sourced Income

For NRIs, DTAA is often relevant for income earned or received in India. Common examples include:

The important point is that NRIs should not assume that DTAA automatically removes tax in India. Instead, DTAA should be checked income-wise and country-wise.

DTAA for Indian Residents with Foreign Income

Indian residents may also need DTAA relief when they earn income from outside India. Examples include:

Where foreign tax is paid or deducted and the same income is taxable in India, foreign tax credit may be claimed through the applicable form and supporting documentation.

Special Note: Foreign Retirement Accounts

A specific double-taxation issue can arise when a person moves back to India after working abroad and has retirement benefit accounts in countries where income is taxed on withdrawal rather than accrual.

Under the older law, this was associated with Section 89A. Under the Income-tax Act, 2025, the corresponding provision is Section 158, and the relevant form is Form 40. The official FAQ states that Form 40 is used by a resident in India to claim relief for income from a retirement benefit account maintained in a notified country. The countries notified for this relief are the USA, UK, Canada, and Australia at present. 

This is important because without such relief, the same retirement account income may be taxed in India on accrual while being taxed in the foreign country at withdrawal, creating a timing mismatch.

What Happens if There is No DTAA?

If India does not have a DTAA with the country where income arises, relief may still be available under unilateral relief provisions, subject to conditions.

Under the 2025 Act, Section 160 deals with countries with which no agreement exists. It provides relief where an Indian resident proves that income accrued or arose outside India during the tax year, was not deemed to accrue or arise in India, and tax was paid in a country with which no agreement exists under Section 159. The relief is calculated using the Indian tax rate or the rate of tax of that country, whichever is lower. 

In simple terms, even if there is no DTAA, the law may still provide a way to reduce the burden of double taxation. But this requires proof of foreign income, foreign tax paid, and satisfaction of statutory conditions.

Common Mistakes to Avoid While Claiming DTAA Benefit