No fund penalty, unlike the US
First, the reassurance: France does not have the punishing foreign-fund regime the United States applies. There is no French equivalent of the US rules that tax foreign mutual funds harshly and bury the holder in paperwork. For French tax, your Indian mutual funds and shares are ordinary securities, and a gain on selling them is taxed under the flat tax of 30%, the same 12.8% income tax plus 17.2% social charges that applies to other investment income, with an option for the progressive scale where that helps.
So the fear that Indian funds are somehow toxic for a French resident, which is real for a US person, simply does not apply in France. The funds are treated like any other securities.
The treaty makes most gains France-only
The more valuable point is where the treaty places the gain. Under its capital-gains article, gains on shares of an Indian company where you hold 10% or more can be taxed by India, and gains on shares of a company that mainly owns Indian real estate can be too. But gains on a portfolio shareholding of under 10%, and on mutual-fund units, which are units in a trust and not shares, fall into the treaty's residual category, which is taxable only in your country of residence, France.
The consequence is valuable: for an ordinary retail investor, India has no treaty right to tax the gain on your Indian mutual funds or small share holdings. So the TDS the fund house or broker deducts on the sale is not the final tax; you claim treaty relief with a tax residency certificate and Form 10F to reduce it, or file an Indian return to recover it. This is the same basis on which residents of the UAE, Singapore and Mauritius keep their Indian fund gains out of Indian tax. France then taxes the gain under its flat tax, so it is taxed once, in France.
The India side, and the coming change
On the India side, the fund house or broker withholds at the domestic rates, equity funds and shares at 12.5% for long-term gains and 20% for short-term, debt funds at slab, so the recovery through the treaty is where the value sits. Getting the treaty relief and the refund right is the India-side work.
One change is on the horizon worth knowing. A new France-India protocol, signed in 2026 but not yet in force, will let India tax share gains more broadly, without the 10% threshold, once it takes effect in a few years. When that happens, India will tax more of these gains at source and the route becomes claiming a French credit for the India tax instead, though mutual-fund units, not being shares, may still remain France-only. For now the current treaty governs, and most retail gains are France-only. A practising CA claims the treaty relief, recovers the Indian TDS, and gives your French accountant the figures for the French charge.