Double Taxation Avoidance Agreement (DTAA): How NRIs Save Tax on Indian Income

What is a DTAA?

A Double Taxation Avoidance Agreement, abbreviated as DTAA, is a bilateral tax treaty between two sovereign nations. The treaty allocates taxing rights between the two countries for various categories of cross-border income — interest, dividends, royalties, capital gains, salaries, business profits, and others — so that the same economic income is not taxed twice on the same person. DTAAs are negotiated, signed, ratified, and published; once notified by the Indian Central Board of Direct Taxes (CBDT), the treaty becomes part of Indian tax law and can be invoked by eligible non-residents.

India has historically signed DTAAs with more than 90 jurisdictions. The list includes most major economies and most countries where the Indian diaspora has settled in significant numbers — the United States, the United Kingdom, the United Arab Emirates, Singapore, Canada, Australia, Germany, France, Japan, the Netherlands, Switzerland, Mauritius, Hong Kong, Saudi Arabia, Qatar, Kuwait, Oman, and dozens more. Each treaty is a separate negotiated document, and the rates and conditions vary from one treaty to another.

For NRIs, DTAAs are not just an abstract concept — they are the single most important tool to lower the effective rate of withholding tax on Indian-source income such as NRO bank interest, dividends from Indian companies, and royalties. Without DTAA invocation, NRO interest is taxed at 30% TDS at source under domestic Indian law. With proper DTAA paperwork, this rate drops to 10-15% in many cases.

The two methods of DTAA relief

Every DTAA in the world ultimately uses one of two structural approaches — or a hybrid of both — to eliminate double taxation:

1. Exemption method

Under the exemption method, income earned in one country is taxed only in that country and is fully exempt from tax in the other. There is no double-counting and no credit calculation, because the income is simply outside the scope of the second country's tax net. The exemption method is clean administratively but requires both governments to agree that one of them will forego revenue entirely on that category of income.

A historical example: under the older India-Mauritius DTAA before its 2016 renegotiation, capital gains on Indian shares earned by Mauritius-resident investors were taxable only in Mauritius. Mauritius, in turn, did not tax such gains under its domestic law. The combined effect was zero tax on either side — the reason the route was so heavily used by foreign portfolio investors before the treaty was amended.

2. Tax credit method

Under the tax credit method, the same income is taxable in both countries, but the country of residence grants a credit for the tax already paid in the country of source. The credit is typically capped at the lower of (a) tax actually paid in the source country, or (b) tax that would have been payable on that income at the residence country's rate. The taxpayer ends up paying tax overall at the higher of the two rates, rather than the sum of the two — which is the relief.

Most DTAAs that India has signed with major economies (US, UK, Canada, Australia, Germany, Singapore) operate on the credit method for Indian residents earning foreign income, and a mixture of reduced source-country tax plus credit method for non-residents earning Indian-source income.

Common DTAA rates on Indian-source income

The actual treaty rate depends on the specific DTAA and the income category. The figures below are illustrative historical treaty rates that have applied to common categories of Indian income for NRIs in major countries — they are educational benchmarks, not current quotes, and the actual current rate should always be verified against the latest treaty notification on the Income Tax Department website.

Interest income from India

Domestic Indian law applies 30% TDS plus surcharge and cess on NRO interest (effective ~31.2%). Common DTAA caps observed historically:

• India-US DTAA: 15% on interest paid to a US resident.
• India-UK DTAA: 15% on interest, with certain categories at 10%.
• India-UAE DTAA: 12.5% on interest. UAE has no personal income tax, so the only tax was at the Indian source.
• India-Singapore DTAA: 15% on interest, lower for certain bank or government-related interest.
• India-Canada DTAA: 15% on interest in most cases.
• India-Australia DTAA: 15% on interest.
• India-Germany DTAA: 10% on interest in many cases.

Dividend income from Indian companies

Domestic Indian law applies 20% TDS plus surcharge and cess on dividends paid to non-residents under Section 195 (post-April 2020 when the Dividend Distribution Tax was abolished). Common DTAA caps:

• India-US DTAA: 25% in most cases for individuals (the treaty rate is sometimes higher than the current domestic rate for dividends, in which case the lower domestic rate prevails — Section 90(2) allows the more beneficial of the two to apply).
• India-UK DTAA: 10-15% on dividends depending on shareholding.
• India-UAE DTAA: 10% on dividends.
• India-Singapore DTAA: 10-15% on dividends.
• India-Mauritius DTAA: 5-15% depending on shareholding.

A useful principle here: Section 90(2) of the Indian Income Tax Act allows a non-resident to invoke whichever is more beneficial — the domestic Indian rate or the DTAA rate. So if the treaty rate is higher than the domestic rate, the non-resident is not forced into the worse outcome.

Capital gains on Indian shares

Capital gains taxation under DTAAs is the most variable category. Some treaties allocate taxing rights to the source country (India), some to the residence country, some only to gains from immovable property. Major patterns:

• India-US DTAA: Capital gains on Indian shares for US residents are taxable in India under domestic law (12.5% LTCG above Rs 1.25 lakh, 20% STCG on listed equity post-Budget 2024). The US grants foreign tax credit for the Indian tax paid.
• India-UK DTAA: Similar treatment — capital gains on Indian shares taxable in India, foreign tax credit available in the UK.
• India-Mauritius and India-Singapore DTAAs: Historically allocated capital gains to the residence country, making these the dominant routes for foreign portfolio investment until both treaties were renegotiated to introduce source-country taxation effective from April 2017.

Royalty and Fees for Technical Services (FTS)

Domestic Indian law applies 10% TDS on royalties and FTS to non-residents (post-Budget 2023 changes; earlier rates differed). DTAA caps observed historically:

• India-US DTAA: 15% on royalties and FTS in most cases.
• India-UK, Singapore, UAE DTAAs: Typically 10-15% on royalties and FTS.

How to claim DTAA benefits: Form 10F and TRC

Claiming a DTAA benefit is not automatic. The Indian payer of income — bank, company, AMC, or tenant — is legally required to deduct tax at the higher domestic rate unless the non-resident submits the prescribed documents proving eligibility for the treaty rate. The required paperwork is:

Tax Residency Certificate (TRC)

A TRC is a certificate issued by the tax authority of the country of residence stating that the person is a tax resident there for the relevant year. In the US, the TRC is Form 6166 issued by the IRS. In the UK, it is issued by HMRC. In Singapore it is issued by IRAS. In the UAE it is issued by the Federal Tax Authority. The TRC must contain specific particulars prescribed under Rule 21AB of the Indian Income Tax Rules: name, status, nationality, country, tax identification number, residential status for tax purposes, period for which the certificate is applicable, and address.

A TRC is typically valid for one financial year. NRIs need to obtain a fresh TRC each year and submit it to all Indian payers before April so that the lower DTAA rate applies for the entire financial year.

Form 10F

Form 10F is a self-declaration in a prescribed format under Rule 21AB. It is required when the TRC issued by the foreign country does not already contain all the particulars listed in Rule 21AB. Form 10F covers items such as name, status (whether individual, company, etc.), nationality, country of residence, tax identification number, period for which the residential status is claimed, and address. Since 2023, Form 10F has had to be filed electronically through the Income Tax e-filing portal, which requires the non-resident to obtain an Indian PAN.

PAN and beneficial ownership declaration

A valid Indian Permanent Account Number (PAN) is mandatory. Without PAN, Section 206AA of the Income Tax Act requires TDS at the higher of the prescribed rate or 20%, regardless of any DTAA — though some recent amendments and judicial rulings have softened this in cross-border contexts. Additionally, a self-declaration of beneficial ownership confirms that the non-resident is the actual beneficial owner of the income and is not merely a conduit, which closes off treaty-shopping structures.

Two routes to claim DTAA: at source or in the ITR

DTAA benefits can be claimed in two ways:

Route 1 — Reduced TDS at source: Submit TRC, Form 10F, PAN, and beneficial ownership declaration to the Indian bank, company, or AMC before the income is paid. The payer applies the lower DTAA rate at source. This is the cash-flow-friendly route because the NRI receives net income at the lower withholding rate without needing to wait for a refund.

Route 2 — Refund through ITR: If the documents were not submitted in time and TDS was deducted at the higher domestic rate, the NRI can file an Indian income tax return (typically ITR-2 for individuals with capital gains and interest income), apply the lower DTAA rate in the computation, and claim a refund of the excess TDS. The refund process historically took several months but worked.

Foreign tax credit in the residence country

Even after applying the lower DTAA rate in India, the NRI is generally still required to declare the Indian-source income in the country of residence under worldwide-income rules. The residence country then grants a foreign tax credit for the Indian tax already paid. Mechanisms vary:

• United States: Foreign tax credit is claimed on Form 1116 attached to Form 1040. The credit is limited to the proportion of US tax attributable to foreign-source income.
• United Kingdom: Foreign tax credit relief is claimed in the Self Assessment tax return.
• UAE: No personal income tax, so no double taxation arises and no credit is needed.
• Singapore: Foreign-source income is generally tax-exempt for individuals if remitted under specific conditions, removing double taxation in many cases.
• Canada and Australia: Credit is claimed in the annual personal tax return with Indian TDS certificates (Form 16A) as supporting evidence.

Note that the foreign tax credit is generally capped at the residence country's own tax rate on that income. If India taxed at 15% but the residence country's rate is 12%, only 12% credit is granted and the remaining 3% paid in India does not generate any credit benefit — that residual is the economic cost of the Indian withholding even after DTAA.

Country-specific worked examples

US-resident NRI with NRO interest

An NRI in California earns Rs 5 lakh in NRO FD interest in a financial year. Without DTAA: TDS at 31.2% deducts Rs 1.56 lakh. With DTAA (US-India treaty cap 15%): TDS at 15% deducts Rs 75,000. The NRI has Rs 81,000 of additional liquidity at source. The NRI then declares the Rs 5 lakh on their US Form 1040 as worldwide interest income, computes US federal and California state tax, and claims foreign tax credit on Form 1116 for the Rs 75,000 (USD equivalent) Indian tax paid.

UAE-resident NRI with Indian dividends

An NRI in Dubai receives Rs 2 lakh of dividend from an Indian listed company. Without DTAA: TDS at ~20% deducts Rs 40,000. With DTAA (UAE-India treaty cap typically 10% on dividends): TDS at 10% deducts Rs 20,000. UAE has no personal income tax, so no further tax is payable in UAE — the entire benefit of the lower TDS flows through to the NRI as net income.

UK-resident NRI selling Indian shares (long-term)

An NRI in London sells Indian listed shares held for more than 12 months and earns Rs 3 lakh of long-term capital gains (LTCG). Indian tax: 12.5% on the gain above Rs 1.25 lakh exemption = 12.5% on Rs 1.75 lakh = Rs 21,875. The UK-India DTAA does not exempt these gains from Indian tax — they are taxable at the source. The NRI then declares the gains on the UK Self Assessment return and claims foreign tax credit relief for the Rs 21,875 paid in India, capped at the UK tax that would have been payable on the same gain.

Common mistakes when claiming DTAA

• Submitting paperwork after the fact: Banks apply the lower rate only prospectively from the date all documents are received. NRIs who submitted in November paid higher TDS for April-October and had to claim refund through ITR.
• Expired TRC:A TRC is annual. NRIs who used last year's certificate found that the bank reverted to the higher domestic rate.
• No PAN: Section 206AA can override DTAA in the absence of PAN, pushing TDS back to the higher rate.
• Missing Form 10F electronic filing: Since October 2023, Form 10F has had to be filed electronically on the Income Tax portal in most cases. Paper Form 10F is no longer accepted by many large payers.
• Confusing DTAA with full exemption: Many NRIs assumed DTAA meant zero tax in India. In practice, most modern DTAAs use the credit method, not the exemption method, for NRO income.
• Treaty-shopping:Routing income through a third-country entity to claim a more favourable DTAA was challenged by India's anti-avoidance rules (GAAR) and Limitation of Benefits clauses in modern treaties.

Related guides

For the broader NRI banking context within which DTAA operates, see our companion guide on NRE vs NRO vs FCNR accounts. For dividend taxation rules in India that DTAA can reduce, see dividend tax in India. For the Indian capital gains framework on shares, see long-term capital gains on stocks.

Frequently asked questions

Does DTAA exempt my Indian income from Indian tax entirely?

Generally no, except in very specific categories under specific treaties. Most DTAAs reduce the rate of Indian withholding tax on items like interest and dividends and grant a credit for Indian tax in the residence country. A few treaties historically gave full exemption on capital gains in India for residents of the treaty country, but those routes have largely been closed through renegotiation.

Do I need to file an Indian ITR even after DTAA paperwork?

If your total taxable Indian income exceeds the basic exemption limit (Rs 2.5 lakh under the old regime, Rs 3 lakh under the new regime), you are required to file an ITR in India even if all relevant TDS has been deducted. Filing also lets you claim a refund if TDS exceeded the actual liability.

Can I invoke DTAA without a PAN?

Section 206AA generally requires PAN, and without it TDS may default to a higher rate. NRIs claiming DTAA benefits should obtain an Indian PAN before submitting Form 10F and TRC to banks and payers.

Where do I get a Tax Residency Certificate?

From the tax authority of the country of residence. In the US, it is IRS Form 6166 (request via Form 8802). In the UK, HMRC issues a TRC on request. In Singapore, IRAS. In the UAE, the Federal Tax Authority. Each jurisdiction has its own application form and processing time.

What if the DTAA rate is higher than the domestic Indian rate?

Section 90(2) of the Indian Income Tax Act allows the non-resident to apply whichever rate is more beneficial — the domestic rate or the treaty rate. So a DTAA cannot force a higher tax on the NRI; it acts as a ceiling, not a floor.

This article is educational only and does not constitute tax, legal, financial, or investment advice. DTAA treaty rates, procedural rules, Form 10F filing mechanics, and TRC requirements change with treaty renegotiations, CBDT notifications, Finance Acts, and judicial rulings. Every figure and provision cited is historical and illustrative as of the date of writing. Cross-border taxation involves complex interactions between Indian law, foreign tax law, and bilateral treaty interpretation. Please consult a qualified chartered accountant familiar with NRI taxation, an international tax adviser, and the tax authorities of your country of residence before relying on any specific DTAA position. EquitiesIndia.com is not liable for any reliance placed on this article.