Crew across borders: social security, home base and payroll

A business aircraft is a small, highly mobile workplace. Its crew may live in one country, start and end their duty days in another, fly through a dozen more, and be employed by a company in yet another. For the owner, the crew are usually someone else’s administrative problem — the manager’s or a crewing agency’s. But the owner pays for the arrangement, the aircraft’s operating structure shapes it, and the consequences of getting it wrong — back-dated social-security contributions, penalties, employment claims, and questions that spill into the aircraft’s wider position — can come back to the owner.

This article explains the frameworks that decide where crew are insured, taxed and protected; the specific home-base rule for aircrew in the EU and why its application to private aviation deserves care; and the employment models that keep a crew set-up coherent. It covers the EU framework; crew income tax and employment law are national matters on which specialist advice in each country is essential.

Why crew is complicated

Three separate legal questions arise for every crew member, and they are answered by three different sets of rules. Social security: which country’s system the crew member is insured in, and where contributions are paid. Income tax: which country may tax their pay, under domestic law and the relevant double-tax treaty. Employment law and jurisdiction: which country’s labour law governs the contract, and where the crew member can bring a claim.

Because these questions use different tests, a single crew arrangement can produce different answers for each — insured in one country, taxed in another, with claims heard in a third. That is not necessarily wrong, but it has to be known and managed. The problems we see arise when nobody has asked the questions at all, and contributions are simply paid wherever the employer happens to be registered, or not paid at all.

Which social security applies

Within the EU, the EEA and Switzerland, Regulation (EC) No 883/2004 coordinates social-security systems. Its central principle is that a person is subject to the legislation of one country only at a time. For ordinary employees that is usually the country where they work; for people who work in two or more countries, special rules look at where a substantial part of the work is done and, failing that, at where the employer is established.

Aircrew fit badly into these general rules, because they routinely work in many countries in a single week. That led, over years of disputes, to a specific rule for them.

The home-base rule

Since 28 June 2012, Article 11(5) of Regulation 883/2004 — inserted by Regulation (EU) No 465/2012 — provides that an activity as a flight crew or cabin crew member performing air passenger or freight services is deemed to be pursued in the Member State where the crew member’s home base is located. The home base is the location nominated by the operator from which the crew member normally starts and ends a duty period, and where the operator is not normally responsible for accommodation.

The rule’s purpose, as the recitals explain, is stability: the applicable legislation should not change every time the work pattern or the season changes. For a crew member based in Nice, French social security applies to their crew activity under this rule, regardless of where the employer is registered or where the aircraft is registered. A crewing company in another country, or an owning company in Malta, does not change the answer.

The consequence is that the home base is a legal fact with financial consequences, not just a rostering convenience. Nominating a home base, or allowing one to emerge in practice, determines which country’s contributions are due. A crew whose home base is in practice the aircraft’s European base, but whose contributions are paid in a low-cost country where the employer is registered, is a common and avoidable exposure.

Private aviation: a closer look

The home-base rule is drafted for crew “performing air passenger or freight services”. For crew on commercial operations — including charter under an air operator certificate — that language fits naturally. For crew on purely private, non-commercial flights of a business jet, it is less clear-cut whether the specific aircrew rule applies, or whether the general rules for persons working in two or more Member States under Article 13 of the Regulation govern instead. Those general rules look first at the country of residence and whether a substantial part of the activity is carried out there, and otherwise at the employer’s registered office or place of business.

The two approaches can produce different answers for the same crew member, and national authorities and advisers do not always read the position the same way. For an owner whose aircraft is used both privately and for charter, the crew may even fall under different analyses for different parts of their work. This is precisely why crew arrangements for private aircraft should be analysed deliberately, with the analysis documented and, where possible, confirmed by obtaining the appropriate certificate — rather than assumed from rules written for airlines.

The A1 certificate

The practical instrument for certainty is the portable document A1, issued by the competent institution of the country whose social-security legislation applies. It certifies that the holder is insured in that country, and other Member States’ institutions are in principle bound by it unless it is withdrawn or declared invalid by the issuing institution. For a crew member working across many countries, an A1 is the clearest evidence that contributions are being paid in the right place.

Obtaining A1s requires an employer that is properly registered in the relevant country and an analysis that supports the application. A crew set-up that cannot obtain A1s — or that never applies for them — is, in practice, relying on nobody asking. Where the honest analysis points to a particular country, registering there and applying for A1s is the way to turn that analysis into certainty.

Income tax on crew pay

Income tax follows different rules. A crew member is generally taxed in their country of residence on their worldwide income, and the question is whether another country also has a right to tax their crew pay and how the double-tax treaty between the two resolves it. Most treaties follow the OECD Model, which contains a specific provision for remuneration for employment exercised aboard an aircraft operated in international traffic. Under older versions of the Model, that pay may be taxed in the state where the place of effective management of the operating enterprise is situated; the 2017 update provides instead that such pay is taxable only in the employee’s state of residence, unless the aircraft is operated solely within the other state.

Because treaties were concluded at different times and on different versions of the Model, the answer genuinely varies between pairs of countries, and some countries also have special domestic regimes for aircrew. The structuring point is that the operator’s place of management and the crew’s residence are the connecting factors, so decisions about where the operating company sits and is managed have consequences for crew taxation as well as for social security. Crew income tax is always a matter for advisers in the relevant countries.

Employment law and courts

The law governing a crew member’s employment contract and the courts that can hear their claims follow EU private-international-law rules. Under the Rome I Regulation, the parties can choose the governing law, but the employee cannot be deprived of the protection of the mandatory rules of the law that would apply without a choice — usually the law of the country in or from which the employee habitually works. Under the Brussels I recast Regulation, an employee can generally sue their employer in the courts of the place where or from where they habitually carry out their work.

For aircrew, the Court of Justice has held (in Nogueira and Others, C-168/16 and C-169/16, concerning Ryanair crew) that the concept of the place from which the employee habitually carries out work is to be determined by a range of indicators, among which the home base is a significant one. The practical consequence mirrors social security: a crew member whose home base is in Nice can expect French mandatory employment protections to be relevant, and French courts to be available, whatever the contract says about governing law and jurisdiction.

Employment models

Owners and managers use a few models, each with its own consequences.

The freelance model deserves particular caution. A pilot who flies only for one aircraft, under the operator’s direction, on the operator’s roster, looks like an employee whatever the invoice says, and several countries actively reclassify such arrangements, with back-dated contributions for the party treated as employer. Agency models can be sound, but labour-supply rules vary, and the agency’s own compliance becomes part of the owner’s risk. In every model, the employer should be registered for payroll and social security in the country the analysis points to, and the home base should be a deliberate decision rather than an accident of the schedule.

Crew arrangements also connect to the aircraft’s other positions. Who employs and directs the crew is evidence of who exercises operational control — relevant to whether a claimed operator is real, to any commercial-use claim, and, for temporary admission, to who is using the aircraft. A crew structure that contradicts the operator structure undermines both.

A worked example

Consider — generically, with no client detail — a long-range jet owned by a Maltese company, managed by a Swiss manager, and based in practice at Nice. The two pilots live in England and France; the cabin attendant lives in Portugal. All three are engaged by a crewing company registered in a third country, which pays no European social-security contributions. Each duty period starts and ends at Nice, and the crew are put up in hotels only when away from Nice.

In substance, Nice is the home base. If the home-base rule applies to this crew’s work, French social security applies to their crew activity; if the aircraft is used purely privately and the general multi-state rules apply instead, the answer may depend on each crew member’s residence and work pattern. Either way, the current arrangement — no contributions anywhere in Europe — matches none of the possible answers. The structured version analyses each crew member’s position, registers an appropriate employer in the country the analysis points to, applies for A1s, aligns the contracts with the mandatory protections that apply, and makes sure the employing entity is consistent with the aircraft’s operator structure.

Mistakes we see

Crew mistakes follow a pattern. The first is letting the employer’s registration decide: paying contributions wherever the crewing company happens to be registered, without asking where the home base or the multi-state rules actually point. The second is the accidental home base: an aircraft that lives at one European airport, with crew who start and end every duty there, while the paperwork names somewhere else or nothing at all. The third is the freelance shortcut: full-time, single-operator crew invoicing as self-employed to avoid payroll, which invites reclassification.

The fourth is treating private aviation as if airline rules settled everything, without considering whether the general multi-state rules apply to non-commercial flying. And the fifth is no A1 certificates, so that even a correct position cannot be demonstrated when a social-security institution asks. Each is avoided by analysing each crew member’s position once, documenting it, registering the employer where it should be registered, and reviewing the analysis whenever the base, the operator or the use of the aircraft changes.

Key terms

Frequently asked

Last reviewed 19 October 2026. This article is general information, not legal, tax or employment advice; national rules differ and every crew arrangement turns on its own facts.