Business travel per diem: the URSSAF 2026 guide

The per diem (literally "per day" in Latin, a term widely used in multinational corporations) refers in France to the flat-rate allowance paid to compensate for the additional food and accommodation costs of an employee on a business trip. The French administration calls it an "allocation forfaitaire de grand déplacement" (large-distance travel flat-rate allowance)^[1]. The principle is simple: rather than reimbursing each receipt to the last cent, the employer pays a fixed, predetermined daily amount, disconnected from actual expenses. The employee benefits from simplicity (no more receipt-collecting). The company gains budget predictability.

It should not be confused with mileage reimbursement, which covers transport costs (fuel, tolls, vehicle wear), or with actual-cost reimbursement, which requires the systematic production of receipts. The per diem covers only the additional cost of living caused by being away from home: restaurant meals, hotel nights, breakfast. It is this limited scope that justifies the favourable social treatment: within the ceilings, the allowance is exempt from social contributions and personal income tax.

There is one point that is easily overlooked. Even though the allowance is disconnected from actual spending, it is not a free benefit: URSSAF requires that costs have genuinely been incurred by the employee for the exemption to apply^[2]. A per diem paid "for the trip" to a sales rep who ends up sleeping at home each night will be added back into the social contributions base. The mechanism rewards a real additional cost — not the intention to incur one.

To qualify for the favourable regime, the trip must first meet a dual geographic condition. The employee must travel to a location at least 50 km away from their primary residence, and no public transport must allow the return journey on the same day (that is, within 1h30)^[2]. Both conditions are cumulative: a 60 km journey served by a direct high-speed train does not qualify. The idea is clear: the per diem compensates for a trip that requires spending the night away from home.

On top of this, three substantive conditions (often overlooked but critical in the event of an audit) must also be met. The employee must not return home during the assignment, otherwise the accommodation cost disappears and the exemption is lost. Real costs must be incurred: the flat-rate amount is not a benefit in kind. Finally, if the employer provides free accommodation (a company flat, a site cabin), the notion of additional cost no longer applies and the exemption on accommodation allowances is ruled out^[2]. In practice, these three points are where URSSAF most commonly adds amounts back into the contributions base.

Duration also matters. The exemption ceilings are degressive: they decrease in steps of three months, then twenty-four months, up to seventy-two months in metropolitan France. The logic: the longer an assignment lasts, the less it resembles a short-term mission and the more it looks like a permanent relocation. Beyond a certain threshold, the company is expected to arrange the employee's assignment differently rather than stacking per diem payments.

Each year, the administration publishes the applicable exemption limits for flat-rate allowances. The 2026 figures, recalculated against price increases, are as follows for extended business trips within metropolitan France^[1]:

Two observations stand out from the table. First, the scale distinguishes Paris and the inner suburbs from the rest of metropolitan France, with a gap of nearly €20 per night on the first band, a direct reflection of Paris hotel costs. Second, the degression is significant: on a long assignment, the Paris accommodation allowance falls from €76.60 to €53.60 between the first and twenty-fifth month — a 30% drop. This is a clear signal: the scheme is not intended to become a permanent income stream.

The scheme works differently outside metropolitan France. For trips to French overseas territories, the flat-rate ceilings are €70 for accommodation and €17.50 for meals per day for Martinique, Guadeloupe, French Guiana, Réunion, Mayotte, and Saint-Pierre-et-Miquelon. They rise to €90 and €21 respectively for New Caledonia, Wallis-and-Futuna, and French Polynesia^[2]. The degressive structure remains, at 15% beyond three months and 30% beyond twenty-four months.

Abroad, the rules differ further: the employer may reimburse actual costs with no ceiling, or opt for a flat-rate allowance capped at the government employee scales published annually by the Ministry of Economy^[2]. Reductions apply if the company directly provides accommodation or certain meals: 65% reduction on the accommodation allowance if the hotel is paid by the employer, 17.5% per meal already covered. The maximum duration of an extended trip abroad is set at four years. Beyond that, the situation moves into international mobility.

Three mechanisms exist to cover business travel expenses, and the choice depends less on the finance manager's preference than on the volume and predictability of travel. The table below maps out the right use for each.

The per diem excels when travel is frequent and homogeneous: a sales rep who spends three days in Lyon every month, a team of technicians on regular regional assignments. The company pays a flat rate, the employee knows what to expect, and accounting bogs down a little less. On the other hand, when assignments become rare or highly variable (a trade show, a one-off client visit with expensive dinners), the expense report regains the upper hand: actual expenses often exceed the flat rate, and cent-for-cent reimbursement is fairer for the employee.

The lodge card follows a different logic: it eliminates the need for cash advances entirely. The traveller pays their hotel and meal with the card. The invoice serves as the receipt, and reconciliation is automated. For international travel, where hotels and meals quickly exceed flat-rate ceilings, it is often the most cost-effective option for both the employee and the company. The per diem and the lodge card are not mutually exclusive: a company can pay a per diem for meals while using the lodge card for accommodation, making the most of both scales.

One point often overlooked in this choice: the per diem combines poorly with transport cost reimbursement. The vehicle remains the item best handled separately, via mileage reimbursement or a dedicated fuel card — a topic covered in our comparison of fuel cards versus mileage reimbursement. The right approach is to separate what relates to the journey (transport) from what relates to the stay (per diem), rather than lumping everything into a single envelope.

In practice, the rollout involves four steps — and the first is not an accounting matter but a legal one. 1) Define the eligibility scope: which types of assignment, what minimum distance, what duration. This internal framework is your protection in the event of a URSSAF audit. It proves that the company did not pay per diems "just in case" but with good reason. 2) Choose the rate structure: apply the exemption ceilings (the cautious approach, zero risk) or exceed them with systematic receipts (more flexible but heavier to manage).

3) Document the mission order. Each trip must be covered by a mission order specifying its location and duration, as well as its purpose^[2]. This is the document that grounds the per diem in reality. 4) Automate payment and reporting. Since the per diem is a fixed daily amount, it lends itself better than expense reports to direct payroll integration, but the expense management module must communicate with fleet and travel management, otherwise the administrative gain evaporates in manual data entry.

This is precisely where an integrated corporate card platform makes the difference. Rather than juggling one tool for per diems, another for expense reports, a third for fuel, and a fourth for travel management, a single platform that consolidates all flows prevents fragmentation. The per diem is not a tool in itself. It is a payment method that makes full sense only when embedded in a coherent corporate expense management framework.