In this article
You're short-staffed for the terrace season, so a fellow owner points you to a German or Polish staffing agency: they can send a crew within a week, cheaper than a local temp agency. Perfectly legal — it's called "posting", and it runs on the EU's own freedom to provide services. What nobody mentions is that it runs on a completely different paperwork system than a normal hire: an A1 certificate, a declaration filed before the first shift, and a liability equation that, at an inspection, does not land on the agency you paid. It lands on your restaurant.
This site already covers hiring a chef from outside the EU — a completely different route, built around a work permit the host government itself issues. What has never been covered is the route most independent restaurants actually use to plug a gap: someone already legally employed by an employer in another EU country, sent here temporarily to work for you. No work permit needed — but two very different documents, and a compliance system almost nobody in hospitality has ever heard of until it goes wrong.
That system is called posting, governed by the Posted Workers Directive (96/71/EC, revised by Directive (EU) 2018/957) and the Enforcement Directive (2014/67/EU). The core mechanism: the worker's social security stays paid in their home country — proven with an A1 certificate — while the host country imposes a set of hard-core rules from day one, including that sector's minimum wage. Every EU country also runs its own pre-posting notification: Limosa in Belgium, SIPSI in France, the Meldeportal-Mindestlohn in Germany, and equivalent systems elsewhere.
Nothing on this site covers it. `hiring a chef from outside the EU` is about a third-country national needing a national residence and work permit issued by the host state itself — a different authority and a different document entirely. The seasonal-staffing-plan and seasonal-staff-housing articles schedule and house any seasonal hire, domestic or foreign, without ever naming the compliance mechanism that makes a posted worker different from an ordinary temp. The staffing-agency-costs article prices ordinary domestic agency staff.
Seven numbers, in this order: what the A1 certificate actually proves and why it's binding, when the declaration has to be filed, what a missing or late declaration costs in two different EU countries, how long a posting can last before full host-country labour law applies, what wage a posted worker is legally owed from day one, what happens when an A1 certificate is later found to be fraudulent, and who is liable when the agency itself gets it wrong.
Why almost nobody has ever looked this up
An agency supplying a crew presents it as a simple service: you sign a contract with the agency, the agency "handles everything", and the invoices arrive like any other cost. To the owner it feels no different from booking a local temp — there's no moment where anyone spells out that this runs on a separate compliance system from your regular staff.
The problem also never surfaces during a normal season. As long as there's no inspection, no complaint, no labour inspector who happens to walk through, everything works exactly as the agency promised. It's only at an inspection — often years later, applied retroactively — that a missing A1 certificate or a declaration that was never filed turns out to be, legally, not the agency's problem but the problem of the restaurant where the worker was actually working.
The rest of this article adds up what most owners have never looked up: exactly which two documents are required, what it costs when they're missing in two different EU countries, how long the protected status lasts, and — the number that surprises people most — how an A1 certificate that looked perfectly valid can later be wiped away, opening a social-security bill you thought was long since settled.
Free guide Everything about staffing your restaurant, in one guide From hiring to scheduling — the complete guide to running your restaurant's team. Read the guide7 numbers most restaurants have never looked up
Every number below comes from a published source — an EU directive, a national statute, or a Court of Justice ruling — never a guess from this site. This is not legal advice: exact rules, amounts and procedures differ by country and change over time, so always check the current regulations of the country you're posting to, and posting from.
1. The document that decides who pays your social security
The A1 certificate (formerly "E101") is proof that a posted worker stays covered by their home country's social security while working for you — issued by that country's own social security institution, never by your own government. As long as it's valid, your restaurant pays no Belgian, French or German social contributions on that wage: those keep flowing through the worker's home country instead.
The Court of Justice of the EU confirmed in Altun (C-359/16, 6 February 2018) that a valid A1 certificate is binding on the courts and social security institutions of the host country — they can't simply set it aside, even if they believe the worker should really be covered locally.
That binding force is exactly why the certificate is the first number in this article: it's not a formality you "sort out along the way", it's the document that decides which country collects which social-security bill — and, as number 6 below shows, which country can claw that bill back afterwards if the certificate turns out not to hold up.
Each from a separate published source — together the reason this isn't paperwork you "sort out along the way".
Sources: French Labour Code Art. L.1264-3; Belgian social criminal law (Limosa sanctions); Directive (EU) 2018/957 amending Directive 96/71/EC; CJEU case C-359/16 (Altun and Others), judgment of 6 February 2018. Rules and amounts change — always check the current legislation of the country you're posting to.
2. The declaration that has to be filed before the first shift
Alongside the A1 certificate, the Enforcement Directive (2014/67/EU) requires every EU country to run its own notification system where a posting is declared to the host country's labour inspectorate in advance. In Belgium that's the Limosa declaration, in France the SIPSI notification, in Germany and Austria the Meldeportal-Mindestlohn — always before the worker actually starts, never after.
The declaration itself isn't heavy admin: an online form covering the worker's identity, the employer, the duration and the location of the work. The problem isn't complexity — it's that almost nobody in hospitality spontaneously knows it exists. An agency that "always handles the declaration" is rarely checked on whether it actually did, until an inspector is standing on the floor.
For the host restaurant, the crucial point is that an inspection happens on YOUR premises, not at the agency's office in another country. An inspector who asks for a Limosa or SIPSI declaration and doesn't get one directs the question at whoever is on shift at that moment.
3. What a missing declaration costs — in two different countries
In France, the administrative fine for failing to file (or filing incompletely) a SIPSI declaration is €4,000 per posted worker, rising to €8,000 for a repeat offence within two years, capped at €500,000 in total (French Labour Code, Article L.1264-3).
In Belgium, the range for a missing or incorrect Limosa declaration runs from €2,400 to €24,000 in administrative fines per worker — with criminal fines of €4,800 to €48,000 and up to three years' imprisonment on top for more serious or repeated breaches. Belgian social criminal law also applies statutory surcharges ("opdeciemen") that push the final payable amount well above the base fine.
The gap between those two ranges is itself a lesson: there is no single "EU rate" — every country sets its own sanction, and it can differ by a factor of six to ten depending on where you post. What stays consistent everywhere: the fine is calculated per worker, not per company — a crew of four with no valid declaration is four fines, not one.
The fine for exactly the same thing forgotten — one worker's declaration filed late or not at all — side by side.
France: flat administrative fine of €4,000 per worker (Labour Code Art. L.1264-3). Belgium: administrative fine of €2,400 to €24,000 per worker, with possibly higher criminal sanctions on top. Both figures stay in euro — they're statutory sanctions set by eurozone countries, not prices converted per reader.
4. The clock that starts running the moment posting begins
A posting is meant to be temporary — and the revised Posted Workers Directive (EU) 2018/957 puts a hard limit on it: 12 months, extendable to 18 months with a reasoned notification to the host country's competent authority.
Before that limit, only the "hard core" of host-country employment law applies (see number 5). After 12 (or 18) months, almost all of the host country's labour law kicks in — except rules on how the employment contract is concluded and terminated, and supplementary occupational pension schemes. The simpler, protected "posted" status simply lapses.
For a restaurant that brings the same crew back through the same agency every year for a long season, this is the number to track: if consecutive periods together cross that limit, the legal and administrative reality changes — even though from the restaurant's own point of view it feels like "just the same seasonal arrangement as last year".
5. The wage the host country requires, from day one
Even though a posted worker's social contributions stay paid at home, the wage is a different story: since the 2018 revision, a posted worker must receive the full remuneration the host country prescribes for that job from the first shift — not just the statutory minimum wage, but every mandatory pay component under the applicable collective agreement (in Belgian hospitality, PC 302; in French hospitality, the "convention collective HCR"; and so on per country).
That's exactly the margin some of an agency's cost saving can come from: if the agency pays the worker according to the (lower) home-country wage instead of the required host-country wage, that's a wage breach for which — as number 7 below shows — the host restaurant can, in several countries, end up jointly liable, even though it never wrote the payslip itself.
For an owner, this is the number to check up front, not after the fact: ask the agency explicitly what wage and what pay components it's paying, and compare it against your own sector's minimum collective agreement. A rate noticeably below a local temp's isn't usually just "more efficient" — it's frequently exactly this gap.
6. What happens when the A1 certificate itself doesn't hold up
The binding force from number 1 has one exception, and it's decisive: the Court of Justice ruled in Altun that a national court can set aside an A1 certificate that was obtained through fraud or abuse of rights — for example when the "posting" company doesn't genuinely operate in its home country at all (a so-called "letterbox" company).
The consequence isn't just a fine: the host country can then retroactively claim its own social security contributions for the whole period the worker actually worked for you — on top of the contributions already (wrongly) paid at home. For a restaurant that hired the worker in good faith through an agency, a case that looked long closed can reopen years later as an outstanding bill.
This is the number most owners have never looked up because it sounds counter-intuitive: a certificate that looks perfectly valid, neatly supplied by the agency, offers no guarantee if the agency isn't actually what it claims to be. The only practical protection is choosing an agency with a demonstrable, checkable presence in the country it claims to operate from — not just a mailbox.
7. Who is liable when the agency itself gets it wrong
The Enforcement Directive (2014/67/EU) requires every EU country to run a system of joint liability in the construction sector: a posted worker can claim unpaid (minimum) wages directly from the next link up the subcontracting chain, not only from their direct employer. For other sectors, including hospitality, the EU does not require this — but several member states have extended it to services in general on their own initiative.
In practice this means: whether your own restaurant can be held jointly liable for an agency's wage breach depends entirely on the national law of the country where the worker was working — yes in some countries, not (yet) in others. That's exactly why this is the last and most underestimated number: the answer differs per country, and "it isn't in the EU directive" doesn't mean "it isn't anywhere".
For an owner, the practical lesson isn't "this won't happen to me" — it's: check with your own hospitality federation whether joint liability for subcontracting has been extended to your sector in the country where the work happens, and keep the A1 certificate and declaration proof yourself — not just the agency's word that "everything's in order".
Does the saving actually outweigh the risk?
This isn't the classic "cost versus fine" calculator you'll find elsewhere on this site. The question here is sharper: how much do you actually save by posting a crew through a foreign agency instead of hiring locally — and how much of that saving does a single failed inspection wipe out in one go?
Enter your own numbers. The tool weighs your annual saving against an illustrative compliance risk per worker, based on the fine ranges above, so you can see for yourself how many years of saving are actually at stake.
Posting through a foreign agency: what's actually at stake?
Enter your own figures — the rest does the maths.
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Default compliance risk: €6,000 per worker — an illustrative midpoint between the French flat fine (€4,000) and the middle of the Belgian range (€2,400–24,000), without counting any criminal sanction or a retroactive social-security claim. Adjust it freely to the country you're posting to.
This is a thinking exercise with your own numbers, not an accounting guarantee or legal advice. The compliance risk is an illustrative, converted estimate — the actual statutory fines stay fixed amounts in the currency of the country that imposes them (see the numbers and chart above).
The tool calculates one failed inspection per worker — in practice, an inspection often catches the whole crew at once, because the same declaration or the same agency covers everyone. An owner working with four posted workers who forgot the declaration for one has usually forgotten it for all four.
What the tool doesn't measure: the gap between "it's wrong" and "you find out". With a missing A1 certificate or a skipped declaration, nothing happens for years — until a routine inspection, a worker's complaint, or a cross-border data exchange between social security institutions finally surfaces it, applied retroactively over the whole period.
How to check this before next season starts
Three steps, in the order they should happen — before the first shift, not after.
1. Ask for the two documents yourself, before the start
- Ask the agency for a copy of each worker's A1 certificate, with name and validity period — not just verbal confirmation that "it's sorted".
- Ask for confirmation (or the reference number) of the Limosa, SIPSI or equivalent declaration before the first shift — in most countries this can be checked digitally.
- Keep both documents yourself, in your own personnel file — at an inspection, the inspector asks you for them, not the agency in another country.
2. Compare the wage against your own sector's minimum
- Ask the agency explicitly what gross wage and what pay components (premiums, allowances) it pays the posted worker.
- Check that against your own sector collective agreement's minimum — a rate noticeably below the local temp rate is rarely pure efficiency.
- Run the comparison through the calculator above with your own day rates, to see how much of the saving is genuine efficiency and how much might be a wage breach.
3. Check the duration and liability rules in your own country
- Add up the same worker's consecutive posting periods — if they're approaching the 12 (or extended 18) month limit, check in advance with your sector body what changes.
- Ask your hospitality federation whether joint liability for subcontracting has been extended to hospitality in your country.
- Repeat this checklist for every new season and every new agency — a valid certificate from last year says nothing about this year's declaration.
The short answer
Posting a crew through a foreign agency is perfectly legal inside the EU and often genuinely cheaper — but it runs on two documents (the A1 certificate and the pre-posting declaration) the agency rarely shows you explicitly, and on a liability that, at an inspection, lands on your restaurant, not the agency.
The amounts differ sharply by country — from a flat €4,000 in France to a range of €2,400 to €24,000 in Belgium — but the pattern is the same everywhere: the fine is calculated per worker, and an A1 certificate later found fraudulent can reopen a social-security bill you thought was long since closed.
The fix costs no new system — ask for the A1 certificate and the declaration proof yourself before the first shift, compare the wage against your own sector's collective agreement, and use the calculator above to see how much of the saving survives once the compliance risk is counted in.