Foreign tax refunds: what to do when the administration delays
Tax over-withheld abroad can be recovered in France, often for several thousand euros. The right can survive even when the administration is slow to issue the documents required, and even when a first claim has failed. Everything turns on one certificate that only the French administration issues, and on when it issues it: when its own delay is what causes the loss, the State can be held responsible for it.
A common situation
It is a frequent situation for people living in France who receive income from abroad: dividends, interest, sometimes a pension.
One example illustrates it. A French resident receives dividends from a Swiss company: Switzerland withholds 35% at source, while the France-Switzerland treaty caps that rate at 15%. The 20% overcharged is, in principle, refundable, which depending on the amounts can mean several thousand euros.
The problem: administrative delays
The refund requires that this certificate be issued by the French administration. Without it, the source country returns nothing. Yet the formality can take months, sometimes years, and an acquired right is often lost by requesting it too late, or letting it drag.
Request the residence certificate from the outset and keep every proof of filing. If the administration is slow, those proofs are what protect the right to a refund.
What the courts say
An administrative delay is not a dead end. France's Conseil d'État ruled on this in a case where the administration had taken three years to certify the claimant's residence, costing him his refund.
The claim had admittedly been filed late, but there was still enough time for the administration to issue the certificate. It was the administration's own delay that caused the loss of the right to a refund: the State was held responsible.
Conseil d'État
A claim that looks lost is therefore not always lost. It still has to be shown that the failure came from the administration's delay, and not from a default by the claimant.
Where a refund is lost
A refund is almost always lost in the same place: on a technical detail, before the merits are ever reached.
Income mischaracterised under the treaty.
The wrong route: a refund at source where a tax credit was needed, or the reverse.
A non-compliant residence certificate, or missing proof that it was filed.
Any one of these is enough to block a well-founded claim. And once a claim has already failed, everything then turns on proof and argument: showing that the right existed, and that it was the administration's delay that compromised it.
The mechanism goes beyond the Swiss case: it applies to most income received from abroad wherever a tax treaty is in force. LS2P Avocats handles these matters end to end, from the first step through to litigation if needed. When a refund looks compromised, a first review is often enough to say whether it is still recoverable.
Request a first reviewLaurent Pouille published a technical analysis of this decision in the legal review Doctrine.
Publication Excerpt
Publication on Doctrine • Reference: Doctrine-Tax-2025, comm. 189, L.Pouille