Working abroad can be an exciting opportunity, but it also comes with legal and financial responsibilities. One of the most important tools that makes international work simple and compliant is the A1 Certificate.
With the A1 in hand, you can legally work across the EU/EEA and Switzerland without paying double social security contributions or losing your benefits back home. Here’s how it works.
What Is the A1 Certificate?
The A1 Certificate proves which country’s social security system applies when an employee or self-employed professional works temporarily in another EU/EEA state or Switzerland.
It ensures workers contribute only in their home country, protecting them from paying twice.
Why It Matters for Legal Work Abroad
- Avoid double payments – contributions remain in the home country.
- Stay compliant – required during inspections abroad.
- Protect benefits – healthcare, pensions, and family benefits remain active.
- Employer compliance – prevents costly fines and project delays.
Who Needs the A1?
- Posted workers on assignments abroad
- Freelancers or self-employed working in other EU countries
- SMEs and entrepreneurs sending staff overseas
- Multinationals with cross-border projects
How to Apply for the A1
- Apply through your home country’s social security authority
- In Portugal, applications are managed by Segurança Social
- Apply before departure to avoid fines or delays
Official reference: Segurança Social – A1 Certificate
How Long Is It Valid?
- Standard validity: up to 12 months
- Can be extended to 18 months with proper notification
- Must be renewed for longer assignments
How Jubipath Supports Workers and Employers
- Clear guidance on A1 applications
- Compliance checks for posted workers and freelancers
- Tailored solutions for SMEs, startups, and entrepreneurs
- Integrated advisory for A1, visas, and mobility in Europe
Conclusion
The A1 Certificate is your legal passport to working abroad in Europe. With it, you stay compliant, avoid double contributions, and protect your benefits.
At Jubipath, we make the process simple so you can focus on your international career.
