A1 Certificate of Coverage for Employees Working in the European Union

A1 Certificate of Coverage is the document that determines in which country social security contributions must be paid for an employee who is temporarily working in another EU Member State.

The document confirms that the employee remains insured under the Romanian social security system and does not need to pay social contributions in the country where they are posted.

For employers, the A1 Form is mandatory in most posting situations within the European Union. Without this document, the company may be required to pay social security contributions in the country where the employee is working, which can lead to double costs, inspections and penalties.

The A1 Form is the document that establishes where social charges are paid and which legislation applies to the employee during the posting period.

Who Needs the A1 Certificate of Coverage ?

The A1 Form is required when an employee or contractor works outside Romania but remains employed by a Romanian company or carries out activities in two or more EU Member States.

The most common situations are:

  • employees temporarily posted to another EU Member State
  • employees working in two or more EU Member States
  • international transport drivers

  • construction workers working on sites in other EU countries

  • technicians, installers and service staff working abroad on assignments
  • freelancers or self-employed individuals working in several EU Member States

In all these situations, the A1 Form confirms that social security contributions are paid in only one country, not in every country where the person works temporarily.

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Why Is the A1 Form Important for Employers?

For companies, the A1 Certificate of Coverage is a compliance document. Without it, the authorities in the country where the employee is working may consider that the employee must be insured in that country.

This may result in:

  • payment of social contributions in another country
  • tax reassessments
  • fines
  • suspension of activity on the construction site or project
  • issues during labour inspections

The A1 Form proves that the employee is insured in Romania and that the posting is carried out legally, in accordance with European legislation.

For the employee, the A1 Form means continuity within the Romanian pension and healthcare system. For the employer, it means controlled costs and legal compliance.

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How Long Is the A1 Form Valid?

The A1 Certificate of Coverage is issued for a fixed period, depending on the type of activity and the duration of the posting. In many cases, the document is issued for the posting period, but there are situations where it must be renewed or amended if the working conditions, the country where the activity is carried out or the duration of the project changes.

For this reason, the A1 Form should be treated as part of the posting planning process, not as a document obtained after the employee has already left the country.

What Happens If You Do Not Have an A1 Form?

The absence of an A1 Form can create serious problems for the employer, especially in sectors such as construction, transport, maintenance, equipment installation or industrial projects within the EU, where inspections are frequent.

Without the A1 Certificate of Coverage:

  • the employee may be considered undeclared labour
  • the company may be required to pay social contributions in that country
  • fines may be imposed
  • activity may be temporarily suspended

For this reason, the A1 Form should be obtained before the activity begins in another EU Member State.

We Can Help You Obtain the A1 Form!

We manage the A1 Form application process for companies posting employees within the European Union, including projects involving large teams or recurring postings.

We can help you with:

  • checking eligibility for the A1 Certificate of Coverage
  • preparing the documents
  • submitting the application file
  • monitoring the application process
  • support in case of inspections in other EU Member States

If you have employees working outside Romania or are about to start a project in another EU country, it is important to clarify the social security contribution situation in advance.

Contact us and we will tell you exactly whether you need the A1 Certificate of Coverage and what steps are required to obtain it!