NRI capital gains and DTAA — when treaty relief applies

India has signed Double Taxation Avoidance Agreements (DTAAs) with more than 90 countries. For an NRI investing in Indian mutual funds, the DTAA matters because it can substantially reduce the TDS withholding on capital gains and IDCW payments. Without the DTAA documentation, the AMC withholds at the full domestic rate; with it, withholding is at the lower of the treaty rate or the domestic rate.

The default NRI TDS rates

Absent DTAA documentation, an Indian AMC withholds the following on payments to NRIs under Section 195:

• Equity STCG (Section 111A): 20% + applicable surcharge + 4% cess.
• Equity LTCG (Section 112A): 12.5% + surcharge + cess on the full gain (the ₹1.25 lakh exemption is allowed at filing, not at TDS).
• Non-equity LTCG (post-Apr-2023 units): slab rate, typically 30% + surcharge + cess.
• Non-equity STCG: slab rate, similar withholding.
• IDCW (dividend): 20% + surcharge + cess.

How DTAA helps

The DTAA provides residence-country taxpayers with relief from double taxation on income that arises in India. For mutual fund capital gains, the relief can take two forms:

• Lower withholding rate at source, if the treaty specifies one.
• Foreign tax credit in the residence country for tax already paid in India.

The applicable mechanic differs by treaty. The India-US DTAA, for example, does not significantly reduce Indian tax on capital gains arising in India — but does provide a foreign tax credit on the US side for the Indian tax paid. The India-Singapore and India-Mauritius DTAAs historically gave more favourable treatment, though grandfathering rules from 2017 amendments now limit some of those benefits to pre-2017 acquisitions.

The documentation required

To claim DTAA relief at TDS time, an NRI must submit to the AMC:

1. Tax Residency Certificate (TRC): issued by the residence country's tax authority, certifying that the NRI is a resident there for tax purposes for the relevant financial year. India accepts TRCs in their original form; some countries' TRCs already contain the information India's regulations require.
2. Form 10F: a self-declaration filed electronically with the Indian income-tax portal. Form 10F captures the NRI's name, address, residence country, TIN, residential status period, etc. As of 2023 amendments, Form 10F filing is mandatory and electronic.
3. Beneficial ownership declaration: stating that the NRI is the beneficial owner of the units and the income, not acting as a nominee for another party.
4. PAN card: Indian PAN. Without it, TDS is withheld at the higher of the standard rate or 20% (Section 206AA).

The documentation needs to be in place at the AMC before the redemption is processed. Submitting after redemption means TDS was already withheld at full rates; relief can only be claimed at year-end ITR filing, leading to a refund cycle that can take months.

Filing the Indian tax return

An NRI must file ITR-2 in India for any year with India-sourced income that exceeds the basic exemption (₹2.5 lakh under the old regime, ₹3 lakh under the new). Capital gains and IDCW income from mutual funds count. The TDS deducted by the AMC is claimed as credit in the return. If TDS exceeded the actual tax liability (after applying the ₹1.25 lakh equity LTCG exemption, treaty relief, etc.), the difference is refunded.

Common pitfalls

• TRC validity: the TRC needs to cover the relevant financial year. NRIs sometimes submit a TRC from the previous year by mistake.
• Form 10F filing window: requires Indian PAN to file electronically. NRIs without PAN cannot file Form 10F at all and so cannot claim DTAA relief at withholding stage.
• Multiple residences within a year: if the NRI moved countries mid-year, the TRC may only cover part of the year. The portion of income arising during a non-covered period gets withheld at the higher rate.
• Surcharge cap: the 15% cap on surcharge for capital gains applies the same way to NRIs as to residents. AMC withholding sometimes does not apply the cap; final reconciliation is at filing.

Practical timeline

For an NRI planning a large equity LTCG redemption:

1. Obtain the current-year TRC from the residence country's tax authority (often takes 2-4 weeks).
2. File Form 10F electronically on the Indian tax portal.
3. Submit TRC + Form 10F acknowledgment + beneficial ownership declaration to the AMC.
4. Wait for the AMC to confirm the DTAA documentation is accepted (typically 1-2 weeks).
5. Initiate the redemption.
6. Receive the proceeds with TDS at the treaty rate.

Working with a tax practitioner

For NRIs with significant Indian MF positions, working with an Indian CA who specialises in cross-border taxation is usually money well spent. The treaty interpretation, the operational documentation, the residency status determination, and the eventual return filing each have edges where DIY approaches can produce expensive errors.