DTAA explained: How NRIs actually claim relief from double taxation

✍️ RebaseNest Team · Last updated 4 Jun 2026

·10 min read
DTAANRI taxForeign Tax CreditForm 67returnees

Educational only. Not investment, tax, legal, or immigration advice. RebaseNest is not a registered investment adviser under SEBI, SEC, or FCA. Indian tax, FEMA, and DTAA rules change frequently — verify every threshold and citation with a qualified cross-border CA before acting. Full disclaimer.

Assuming you are an NRI or recent returnee with salary, dividends, capital gains, or interest hitting two tax systems at once, the word "DTAA" has probably been thrown at you as the answer to every double-tax worry. It is not magic. It is a set of treaty rules that decide which country taxes what, and a mechanical India-side process that must be followed each year for the relief to actually land on the return.

This post walks through what a DTAA does, the two main relief methods, and the Form 67 filing that turns the treaty from a promise into a credit line on the ITR. Section references and rates are drawn from the Income-tax Act, 1961, the Income-tax Rules, 1962, and the published India-US treaty text — citations in the footer.

1. What a DTAA actually is

A Double Taxation Avoidance Agreement is a bilateral treaty between India and another country. India has DTAAs with 90+ jurisdictions; the current list is maintained on the Income Tax Department's DTAA portal. Each treaty does roughly four things:

  • Defines who is a "resident" of each country for treaty purposes (typically Article 4 — the residency tie-breaker).
  • Allocates taxing rights for each income category (salary, dividends, interest, capital gains, royalties, etc.) — typically Articles 6 through 22 or nearby provisions, depending on the treaty text.
  • Specifies the relief method when both countries still have a taxing right (commonly Articles 23, 24, or 25, treaty-specific).
  • Sets a Mutual Agreement Procedure for disputes — the MAP article number varies by treaty; in the India-US DTAA it is Article 27.

The treaty does not override Indian domestic law on its own. Section 90 of the Income-tax Act gives the DTAA legal force in India, and section 90(2) allows the assessee to apply whichever is more beneficial — the Act or the treaty — for each provision.

The practical takeaway: a DTAA is a menu of rules that can be invoked, not an automatic shield. The filing and computation still have to happen.

2. The two relief methods

Most India DTAAs use one of two methods, and some use a mix depending on the income type:

Credit method      Income may be taxed in both countries; India gives
                   credit for foreign tax paid, capped at the Indian
                   tax on the same income. This is the method used
                   in the India-US DTAA (Article 25) and many other
                   India treaties.

Exemption method   Income is taxed in only one country and fully
                   exempt in the other. Used for specific articles
                   in treaties such as India-UAE, India-Singapore,
                   and India-Mauritius — article-specific, not
                   blanket.

For an India-US returnee, the credit method is the typical path. The mechanical model: compute Indian tax on global income as normal, then claim credit for the foreign tax paid on the doubly-taxed slice, capped at the Indian tax attributable to that income. There is no refund of foreign tax in excess of the Indian liability; the credit only neutralises the Indian tax on that slice.

The exemption method is cleaner when it applies — the foreign-taxed income simply does not enter the Indian taxable base — but it is article-specific and the treaty text controls. Reading the actual article matters more than relying on summaries.

3. Form 67 and Rule 128 — the mechanical part

Section 90 gives the right to claim treaty relief. Rule 128 of the Income-tax Rules, 1962 spells out the Foreign Tax Credit (FTC) mechanics. Two filings drive the India-side claim:

Form 67             Statement of foreign income and tax paid, filed
                    online via the Income Tax e-filing portal.
                    Per Rule 128(9), as amended by CBDT Notification
                    No. 100/2022 dated 18 August 2022 (effective
                    from 1 April 2022), Form 67 must be furnished on
                    or before the end of the relevant assessment
                    year, and the return of income for that year
                    must be filed within the time specified under
                    section 139(1) or 139(4).

Tax Residency       Required to claim treaty benefits under section
Certificate (TRC)   90(4). Issued by the foreign country's tax
                    authority. India also requires Form 10F where
                    the TRC does not contain all the particulars
                    prescribed under Rule 21AB.

The 2022 amendment relaxed the earlier rule (which required Form 67 to be filed with the return). Even so, Form 67 filed after the assessment year ends, or where the return itself is not filed within section 139(1) or 139(4) windows, has historically been the trigger for FTC disallowance at processing. Filing the form within the prescribed window and keeping the supporting documents organised is the safest path.

A typical documentation set for a returnee claiming FTC on US-source income includes:

  1. IRS Form 6166 (US Tax Residency Certificate) for the relevant calendar year.
  2. US tax evidence — Form 1040, Form W-2, brokerage 1099s, and any state tax filings (US state taxes do not get FTC under the India-US DTAA — see section 4).
  3. Form 67 filed via the Indian e-filing portal within the Rule 128(9) window.
  4. FTC claim entered in Schedule TR and Schedule FSI of the ITR.
  5. Record-keeping for the period the assessment can be reopened under the prevailing reassessment provisions (currently up to three years generally, ten years for income above prescribed thresholds — keep supporting documents for the relevant horizon).

4. Where DTAA does not help

The treaty is not a tax-planning loophole. Things it does not do:

  • It does not exempt anyone from filing requirements in either country. US citizens and green-card holders must still file 1040 annually regardless of residence; Indian residents must still file ITR on global income.
  • It does not cover all taxes. India DTAAs typically cover income tax and capital gains, not GST, stamp duty, US state income tax (the California Franchise Tax Board's Publication 1031, for example, states that California does not conform to most federal income tax treaty provisions for California income tax purposes), or local taxes.
  • It does not retroactively rescue a Form 67 filed outside the Rule 128(9) window. Appeals have gone both ways, and the safer assumption is "file within the window or risk losing the credit at processing."
  • It does not override anti-abuse rules. The General Anti-Avoidance Rule (GAAR) under Chapter X-A of the Income-tax Act, effective from 1 April 2017 (AY 2018-19), can still apply where the primary purpose of an arrangement is treaty abuse.

The honest framing: a DTAA reduces double taxation through a defined statutory process. When that process is followed sloppily, the relief is denied and the income ends up taxed twice anyway. The treaty is a procedural tool, not a defence in itself.

5. Common scenarios where DTAA matters

A short tour of where returnees and NRIs encounter DTAA in practice. Each line is a sketch, not a ruling — every fact pattern has carve-outs.

US salary while RNOR         For salary attributable to services
                             rendered outside India, the interaction
                             of sections 5 and 6 (residence rules)
                             with the treaty can exclude that portion
                             from Indian tax during the RNOR window.
                             The RNOR status itself does most of the
                             work; the DTAA layers on top.

RSU vest spanning two        The vest gain is generally sourced based
countries                    on workdays in each country during the
                             vesting period. FTC for the US-taxed
                             portion is claimed via Form 67.

Dividend from US stocks      The India-US DTAA Article 10 caps the
held by Indian resident      US treaty withholding at 15% where the
                             beneficial owner is a company owning at
                             least 10% of voting stock, and 25% in
                             other cases. Without a valid treaty
                             claim and Form W-8BEN, US domestic
                             withholding can be 30%. The Indian-side
                             credit is claimed under Rule 128.

Interest on NRE/FCNR         NRE interest is exempt under section
deposits                     10(4)(ii) for a person resident outside
                             India under FEMA. FCNR interest is
                             exempt under section 10(15)(iv)(fa)
                             where paid by a scheduled bank to a
                             non-resident or person not ordinarily
                             resident on approved foreign-currency
                             deposits. DTAA is rarely the operative
                             provision for these.

Capital gain on US           For an Indian tax resident, the gain is
brokerage stock              generally taxable in India under section
                             5. The India-US DTAA Article 13 governs
                             the allocation — gains from alienation
                             of property are generally taxable per the
                             domestic law of each country, with the
                             credit method providing relief from
                             double taxation. The article numbering
                             and allocation rules differ across other
                             India treaties, so the treaty text has
                             to be read for each country pair.

6. A typical workflow when a DTAA situation arises

A typical workflow that fits most returnee and NRI fact patterns:

  1. Identify residency status under both countries for the relevant year (financial year in India, calendar year in the US).
  2. Pull the actual DTAA text for the relevant country pair from the Income Tax Department's DTAA portal — summaries can miss article-specific carve-outs.
  3. For each income head received cross-border, identify the relevant DTAA article and the applicable relief method (credit or exemption).
  4. Where FTC in India is being claimed, calendar the Form 67 window from Rule 128(9) — the end of the assessment year, with the return filed within section 139(1) or 139(4) time.
  5. Obtain the foreign Tax Residency Certificate for the relevant calendar year, and Form 10F where the TRC particulars are incomplete.
  6. A CA with actual cross-border filing experience is usually the right person to involve — DTAA mechanics are not the same as domestic tax work, and procedural traps tend to be non-obvious.

For someone in the RNOR window (commonly the first two or three years after becoming an Indian tax resident, though this depends on the specific section 6 test), the RNOR status often does more of the heavy lifting on foreign-source income than the DTAA itself. Getting the RNOR call right first, then layering the DTAA on top for income that remains doubly taxed, is the usual sequence.

A note on what this is. This article is one explainer assembled by the RebaseNest team, not personalised advice. Numbers age. Rules change. The only person who can sign off on a specific case is a qualified cross-border chartered accountant looking at the full facts. Use this as a checklist of questions to take to that conversation, not as the answer.

See also: Disclaimer · Terms of Service · Privacy Policy

Sources:

Reviewed by RebaseNest CA Review Panel — an independent panel checking all tax-related claims against IndiaCode and RBI primary sources.