DTAA — how India's tax treaties actually work for NRIs

A Double Taxation Avoidance Agreement — DTAA — is a bilateral treaty that allocates taxing rights between two countries so the same income is not taxed in full in both. India has DTAAs with roughly 95 jurisdictions, covering almost every country an NRI is likely to live in.

The treaty is not an automatic exemption. It is a ceiling and a credit mechanism: on some income types it caps the rate the source country can charge, and on most others it lets the country of residence give credit for taxes paid in the source country. To get either benefit, the taxpayer has to invoke it correctly — a TRC, a Form 10F, the right return filings. Most NRI "I got taxed twice" stories trace back to a missed paperwork step, not a missing treaty.

The two directions that concern an NRI

Indian-source income earned by an NRI living abroad — bank interest, rent, dividends, capital gains, consulting fees. India taxes these at source. The treaty sets a ceiling rate (for interest/dividend/royalty/FTS) and the NRI's home country then typically allows credit for the Indian tax paid.
Foreign-source income earned by a resident Indian (ROR) — a returning NRI's overseas rent, dividends, salary, capital gains. India taxes worldwide income; the treaty allows a Foreign Tax Credit against the Indian tax on that same income.

Both directions are governed on India's side by the same treaty text and by Sections 90, 90A, and 91 of the Income-tax Act.

The statutory hooks — Sections 90, 90A, and 91

Section 90 — unilateral authority of the Central Government to enter into DTAAs, and the rule that where a DTAA applies, the provisions of the treaty or the Act, whichever is more beneficial to the taxpayer, will apply.
Section 90A — equivalent for specified associations (arrangements with Taiwan, Hong Kong Specified Territory earlier, etc.).
Section 91 — unilateral relief where no DTAA exists. India allows a credit at the lower of the Indian average rate and the foreign rate on doubly-taxed income.

The two relief methods

DTAAs use one (or a blend) of two methods:

Exemption method. The country of residence exempts income already taxed in the source country. Uncommon in modern Indian treaties for most income types.

Credit method. The country of residence taxes the income but grants a credit for tax paid in the source country, up to the residence-country tax on the same income. This is the dominant pattern in Indian treaties.

Practical consequence: you almost always pay the higher of the two tax rates across both jurisdictions, not a sum of the two.

Who is a "resident" under a treaty — tie-breaker rules

A common problem: you are considered resident under both countries' domestic laws (e.g., a returning Indian who still spends significant time in the US on a green card). The treaty resolves this with a tie-breaker cascade in Article 4, tested in order:

Permanent home available in one state only.
If permanent homes in both states → centre of vital interests (personal and economic ties).
If vital interests cannot be determined → habitual abode.
If habitual abode in both or neither → nationality.
If national of both or neither → mutual agreement between competent authorities.

Only one tie-breaker state wins. You then claim the benefits of that side's treaty provisions.

Caveat for US citizens and green card holders: the US taxes on citizenship. Treaty residence does not relieve the US filing obligation; it affects only which side has primary taxing rights and the credit calculation. The savings clause in the India-US treaty lets the US tax its citizens almost as if the treaty didn't exist, subject to narrow exceptions.

The documents that actually matter

For an NRI to invoke a treaty in India — typically to claim a lower TDS on Indian-source interest, dividend, or professional fees — the deductor (bank, company, client) needs:

PAN — mandatory; without it, TDS is deducted at the higher of the treaty rate and 20% under Section 206AA.
Tax Residency Certificate (TRC) issued by the NRI's country of residence for the relevant tax year. Section 90(4) makes it compulsory; no TRC, no treaty benefit.
Form 10F — a self-declaration containing treaty eligibility details (status, country, tax identification number, address, period covered). Since July 2022, Form 10F must be filed electronically on the income-tax e-filing portal for most non-residents — paper forms submitted to deductors are no longer sufficient in a scrutiny.
No-PE declaration for business income or professional fees, confirming there is no Permanent Establishment in India.

Without these, banks and Indian payers default to the higher of Section 206AA (20%) or the Act rate, and leave the NRI to claim a refund on return-filing — which can take a full year.

The treaty rate caps you are likely to meet

Most Indian DTAAs place ceilings on withholding by the source state for passive income types. Actual rates vary by treaty. Typical ranges:

Interest — treaty rate usually between 10% and 15%, against a domestic Act rate of up to 20% (or higher for NRIs).
Dividend — treaty rate often 10% to 15% (India's domestic rate on dividends to non-residents is 20% plus surcharge and cess, so the treaty almost always helps).
Royalty and Fees for Technical Services (FTS) — treaty rate typically 10% to 15%, against 20% (or in some cases higher) domestic rate.
Capital gains — treatment varies sharply by treaty (see below).
Salary / independent personal services — treaty typically exempts short visits below a threshold (often 183 days) where the employer is not Indian and the remuneration is not borne by an Indian PE.

Capital gains — read your specific treaty

Older treaties (pre-2017 India–Mauritius, India–Singapore, the original India–Cyprus) allowed the country of residence exclusive right to tax capital gains on shares. They were heavily used for FDI structuring.

Mauritius protocol (2016) — India now has source-state taxing rights on gains from shares acquired on or after 1 April 2017.
Singapore protocol — mirrored the Mauritius change.
UAE, UK, US — source-state taxing rights on Indian-property gains and often on shares too.
Gains on Indian immovable property — almost all treaties leave taxing rights with the source state (India). Treaty does not reduce the Indian tax; it simply ensures credit in the residence country.

Never assume the treaty exempts capital gains — check the actual article for your country.

The returning Indian — Form 67 and the FTC

When a former NRI becomes a Resident and Ordinarily Resident (ROR) in India, worldwide income is taxable here. For foreign taxes already paid on that income, India allows a Foreign Tax Credit (FTC) under Rule 128 of the Income-tax Rules.

Key mechanics:

Form 67 must be filed on or before the return-filing due date for the year (recent CBDT relaxations allow filing Form 67 up to the end of the assessment year in some cases, but the safe practice is before the return).
Credit is computed source-by-source, country-by-country, on the lower of: (a) Indian tax payable on the doubly-taxed income, and (b) Foreign tax actually paid on the same income.
Disputed foreign taxes (under litigation abroad) get credit only in the year they are finally paid.
The FTC cannot exceed Indian tax on that income — any excess foreign credit is lost.

A returning NRI who misses the Form 67 deadline risks losing the credit entirely. Pair it with the Schedule FA (Foreign Assets) disclosure — see the FBAR/FATCA article for why ROR foreign-asset reporting is now a serious compliance risk on the Indian side too.

Worked example — NRI with Indian bank interest

Naveen lives in Canada, is a Canadian tax resident, and has an NRO fixed deposit in India paying ₹10 lakh of interest in FY 2025-26.

Without treaty relief:

India deducts TDS under Section 195 at 30% plus surcharge and cess on NRO interest (the rate applicable to non-residents).
That is roughly ₹3.12 lakh withheld at source.

With the India-Canada DTAA invoked:

Article 11 of the treaty caps interest withholding at 15%.
Naveen provides his Indian bank with a valid TRC from the CRA, an electronically-filed Form 10F, and his PAN.
The bank withholds 15% plus cess, roughly ₹1.56 lakh.
Naveen files his Indian return declaring the interest; any excess TDS is refundable. He claims a Canadian FTC for the Indian tax in his Canadian return.

Net effective tax equals the higher of the two countries' rates on that income, not the sum. The paperwork is the difference between ₹3.12 lakh and ₹1.56 lakh stuck in the Indian exchequer for a year.

The Multilateral Instrument (MLI)

India has signed and ratified the OECD's Multilateral Instrument, which amends many of its bilateral treaties without bilateral renegotiation. For any given treaty, the effective text is:

Base treaty + protocol amendments + MLI overlay

MLI additions that matter in practice:

Principal Purpose Test (PPT) — treaty benefits can be denied if obtaining the benefit was one of the principal purposes of the arrangement. This has narrowed aggressive treaty-shopping.
Limitation of Benefits (LOB) provisions in some treaties.
Updated permanent establishment thresholds.
Stricter dividend / capital gains carve-outs in some cases.

Always read the consolidated treaty text (base + protocol + MLI synthesised version), not just the original agreement.

Frequently-cited treaties — quick notes

India–US — classic credit treaty. Savings clause preserves US citizenship-based taxation. NRIs in the US routinely use it to claim FTC in the US for Indian TDS on NRO interest and capital gains.
India–UK — similar credit structure; residency tie-breaker follows the standard Article 4 cascade.
India–UAE — widely used because the UAE imposes no personal income tax. Treaty still matters for the TRC; several UAE-based NRIs have been caught out by the recent Azadi Bachao Andolan-era line on substance and the MLI PPT.
India–Singapore — post-protocol, capital gains on Indian shares taxable in India; otherwise a workable credit framework.
India–Canada — Article 4 tie-breakers above; 15% interest and dividend caps; credit mechanism on both sides.
India–Mauritius — grandfathered pre-1 April 2017 share investments; current investments broadly taxable in India.
India–Australia, India–Germany, India–Netherlands, India–France — all credit-method treaties with generally 10%–15% caps on interest, dividend, royalty, and FTS.

The Income-tax Department publishes consolidated treaty texts at incometaxindia.gov.in → International Taxation → DTAAs. The MLI synthesised texts are also on the CBDT portal.

Common pitfalls

TRC obtained too late. Some jurisdictions take weeks to issue a TRC. If TDS season (Indian FY-end, March) is near, apply well before February.
Form 10F filed on paper. For NRIs with any substantial India-source income, the electronic Form 10F is now the only reliable path.
Reliance on the deductor to "know" the treaty. Banks default to the Act rate unless the NRI pushes the paperwork. Submit TRC + Form 10F before each financial year.
Missing PAN. Section 206AA overrides the treaty cap and pushes TDS to 20% minimum if PAN is not provided.
Claiming treaty without TRC. A TRC is statutory, not optional. Assessments without TRC routinely deny the benefit.
Ignoring Form 67 as a returning Indian. Indian tax on your worldwide income will not be reduced by foreign tax paid unless Form 67 is filed in time.
Assuming the treaty protects capital gains. For Indian immovable property, it almost never does.

Summary

DTAA is a rate-ceiling + credit system, not a blanket exemption.
NRIs claiming Indian treaty relief need PAN + TRC + electronic Form 10F, every financial year, for every deductor.
Residents returning to India need Form 67 to claim FTC against Indian tax on foreign-source income.
Capital-gains treatment varies sharply by treaty and often leaves source-state taxing rights intact — read the specific article, and overlay the MLI changes.
Where no DTAA exists, Section 91 provides unilateral relief at the lower of the Indian average rate and the foreign rate.

For the residency framework that determines which side of a treaty you fall on, see NRI residential status. For the foreign-asset disclosure regime that often surfaces alongside DTAA claims, see FBAR vs FATCA — the NRI overlap.