For employers sending workers abroad within the EU, the A1 Form is not just a formality—it’s the key to avoiding double social security payments and ensuring legal compliance. Yet many companies overlook its importance or struggle with the process.
At Jubipath, we’ve guided employers, entrepreneurs, and posted workers through these complexities. Here are the A1 Form secrets every employer should know.
What Is the A1 Form?
The A1 Form certifies which country’s social security system applies to an employee temporarily working in another EU/EEA country or Switzerland.
Instead of paying contributions in both the home and host country, the worker remains insured only in their home country.
Why the A1 Form Matters for Employers
- Avoid Double Payments – Prevents unnecessary contributions in multiple countries.
- Ensure Compliance – Satisfies EU rules on cross-border employment.
- Protect Workers – Guarantees continued access to healthcare, pensions, and benefits.
- Simplify Administration – Reduces paperwork and unexpected costs.
When Do Employers Need the A1 Form?
- Sending employees on a short-term assignment to another EU country
- Posting workers under a service contract abroad
- Assigning staff to projects in multiple EU states
- Self-employed professionals working temporarily outside their home country
How Employers Can Apply
The A1 Form is always issued by the social security authority of the worker’s home country.
- In Portugal, applications are managed by Segurança Social
- Other EU countries issue it through their respective national institutions
Official source: Segurança Social – A1 Certificate
Common Mistakes Employers Should Avoid
- Waiting until the last minute – Apply before the worker leaves, not after.
- Assuming it’s optional – Without the A1, workers may face double contributions.
- Forgetting renewals – The form covers limited periods (usually up to 12 months).
- Overlooking SMEs – Rules apply to both multinationals and small businesses.
Why Jubipath Helps Employers Do It Right
- Guidance on completing A1 applications correctly
- Compliance checks across EU posting rules
- Support for both SMEs and global companies
- Integrated services connecting A1 forms with visa, work permits, and expansion strategies
Conclusion
The A1 Form is more than a compliance document—it’s a tool that saves employers money, protects workers, and streamlines international assignments. With Jubipath, you can manage the process smoothly and confidently.
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