A1 Certificate Delays of Up to 8 Weeks Expose EU Posted Workers to Fines

An A1 certificate proves which country's social security system a worker stays enrolled in while temporarily posted or travelling for business elsewhere in the EU, EEA, Switzerland or the UK — and getting one now takes anywhere from 2 days to 8 weeks depending on the issuing country. France and Belgium typically turn certificates around in 1-3 weeks; the Netherlands runs 4-6 weeks; Italy and Sweden can take 6-8 weeks. Employers who post staff without a valid A1 in hand risk fines that range from roughly €1,000 to €10,000 per worker in Germany and up to €8,000 per employee (capped at €500,000 company-wide) for repeat non-compliance in France.

What an A1 Certificate Actually Does

The A1 form is issued under EU Regulation 883/2004 and confirms that a posted or dual-activity worker continues paying social security contributions in their home country rather than the host country, avoiding double contributions during a temporary cross-border assignment. It is required for employees posted to work temporarily in another EU/EEA state or Switzerland, staff attending short business trips or conferences abroad in countries that enforce the rule strictly, and truck drivers, consultants and project staff working across multiple member states.

2026 Processing Realities

Processing time varies sharply by country: 1-3 weeks (France, Belgium), 4-6 weeks (Netherlands), 6-8 weeks (Italy, Sweden). Missing or incomplete filings remain the single biggest cause of delay — authorities routinely reject applications for absent posting contracts, unclear assignment dates, or missing employer declarations. Retroactive A1 applications filed after the posting has already started face increasing scrutiny and a higher rejection rate in 2026. During labour inspections, employers are now typically asked to produce a full compliance pack (contract, A1, posting declaration, timesheets) within as little as 5 working days. The EU is developing a centralised e-declaration portal intended to cut submission time significantly, building on the existing EESSI (Electronic Exchange of Social Security Information) system that already links social security institutions across all participating countries.

What This Means for Employers and Employees

For HR and global mobility teams: an A1 is not paperwork you can request the week before departure. With Sweden and Italy running up to 8 weeks, and inspectors demanding compliance packs on 5 days' notice, the only safe practice is applying as soon as a posting or extended business trip is confirmed — ideally 6-8 weeks ahead for any assignment to a slower-processing country.

For employees and assignees: if you are asked to travel for work to France, Belgium, Austria or similar strict-enforcement countries without a certificate in hand, you personally carry exposure — inspectors can and do stop individuals at worksites and on transport, and the fine attaches to the worker as well as the employer. Carry a physical or digital copy of your A1 at all times during the posting, not just proof that one has been applied for.

Action Steps

1. Map every EU cross-border trip and posting against each destination country's known A1 processing time before booking travel.
2. File A1 applications for slow-processing countries (Italy, Sweden, Netherlands) at least 8 weeks before departure.
3. Never allow travel to start on the basis of a submitted-but-not-yet-approved application in strict-enforcement jurisdictions.
4. Maintain a ready compliance pack (contract, A1, posting declaration, timesheets) that can be produced within 5 working days of any inspection.
5. Ensure assignees carry a physical or digital copy of the A1 at all times during the posting — proof of application alone is not enough.

Sources: KPMG Flash Alert, "Proposed Posting Rules Tighten A1 Certificate Compliance," 2026; European Commission, "Electronic Exchange of Social Security Information (EESSI)"; Ferner Alsdorf, "A1 Certificate and the Legal Context in Germany."