Understand Escrow and Guarantee Retentions on Your French Sale in 2026

Why retentions exist at all

The accredited fiscal representative is jointly and severally liable with the seller for the capital-gains tax declared on the 2048-IMM. If the tax authority later reassesses the gain (overstated works, missing supporting documents, an exemption claimed in error), the firm is on the hook for the tax, the late interest, and the penalty. The firm cannot pass that risk back to a seller who has already left France with the proceeds. A retention is the firm preserving its own ability to satisfy a future demand from the administration. That is why retentions exist, and why they will not disappear: they are not a fee, they are a guarantee.

Statutory versus commercial retentions

A statutory retention is the rare case where the firm cannot conclude the file at completion because a critical input is missing or contested. Examples: a works invoice the administration has flagged in a recent doctrine update, a contested holding-period claim, a partial exemption based on a foreign residency certificate that has not yet arrived. The firm cannot sign off until the doubt is resolved. The retention reflects the size of the disputed amount, plus a margin for late interest, and is released as soon as the doubt is cleared.

A commercial retention is the standard market practice on otherwise uncontroversial files. It typically sits between 5% and 10% of the declared CGT, sometimes expressed as a flat €5,000 to €15,000 buffer. The legal justification is the firm general joint liability across the audit window. The economic reality is that the firm is buying itself peace of mind on your money rather than its own. Both flavours are legal. Only the commercial one is genuinely negotiable.

The release schedule that should be in your mandate

A serious mandate writes the release schedule in black and white. Three milestones are usual. First, an automatic partial release at six months when the tax authority has not opened any contradictory exchange (typically 50% of the retention). Second, a further release at twelve months on the same condition (typically another 30%). Third, the residual balance held to the three-year statutory limit, after which the firm has no remaining exposure and the funds are released without further review. Each release should be conditional on the absence of a formal challenge from the administration, not on the absence of any administrative correspondence; firms sometimes blur the two on purpose.

Where it is held matters as much as how long. CARPA is the lawyers and notaires regulated escrow infrastructure: segregated, audited, and protected against the firm bankruptcy. A dedicated client account at the firm is acceptable but exposes you to the firm credit risk; a third-party escrow agent depends on the agent. Ask for CARPA when the retention is significant.

Worked example

A South African resident sells a Provence farmhouse for €840,000 with a declared CGT and social charges total of €92,000. The accredited firm proposes a 10% commercial retention on the CGT, so €9,200, held on its own client account for three years with no scheduled review. The seller pushes back and obtains a CARPA escrow at the notaire study, the retention reduced to 7%, so €6,440, with the schedule above (50% at six months, 30% at twelve months, balance at three years if no formal challenge). Six months later the tax authority has been silent: €3,220 is released. Twelve months later: another €1,932. Two years later the residual €1,288 is released without challenge. Cash-flow impact: €6,440 locked at completion, €3,220 returned within six months, full release inside two years.

Pitfall to avoid

The retention written as a percentage of the sale price rather than of the CGT. On a €1.2 million sale with a small declared CGT of €40,000, a 5% retention on the sale price means €60,000 locked, against a real residual exposure of perhaps €4,000 of late interest in the worst case. The retention base is the firm liability, not the headline price; insist on it being expressed as a percentage of the declared CGT or as a flat amount linked to the file. If the firm refuses, the file is not the priority for that firm, you are.

Pro tip

Ask the firm for the average release timeline of its last twenty completed retentions, not the maximum allowed by law. Firms that handle non-resident files at scale know this number to the week. Firms that quote you the three-year ceiling either have a bad release process or have never measured it. The same question reveals firms that release on time and firms that release only when chased; the latter often need a registered letter to remember that the audit window has closed.