Planning to work in Spain or Portugal? Before starting your job, it’s essential to know which documents you need to work legally. In this blog, we’ll guide you through all the required paperwork from visas and social security numbers to contracts and insurance, so you can start your employment smoothly and without any legal issues.
Required Documents to Work in Spain or Portugal

Working in Spain or Portugal is an exciting opportunity, but having the right documents is essential for legal employment. Proper paperwork ensures you can work safely, avoid fines, and access benefits like healthcare and social security.
1. Valid Passport or National ID
- For EU/EEA Citizens: A valid national ID card is sufficient to work in Spain or Portugal. You do not need a separate work visa, making the process faster and simpler.
- For Non-EU Citizens: A valid passport is mandatory. In most cases, you will also need a work visa or residence permit before entering the country. This ensures you are legally allowed to work and avoid any penalties.
2. Work Visa / Residence Permit
- Non-EU/EEA Citizens: You must obtain a work visa before entering Spain or Portugal to work legally.
- How to Apply? Submit your application through the local embassy or consulate of the country where you’ll be working.
- Important Tip: Make sure your visa type matches the job you are going to do, as different visas apply to different professions and durations of work.
3. Social Security Number
- Spain: Known as Número de la Seguridad Social
- Portugal: Called Número de Identificação da Segurança Social (NISS)
Why Is It Needed?
A social security number is mandatory for legal employment and allows you to access important benefits such as healthcare, pensions, and other social services.
4.Employment Contract
- What It Includes: Your employment contract clearly outlines salary, working hours, and job responsibilities.
- Legal Compliance: The contract must follow local labor laws in Spain or Portugal to ensure your rights are protected.
- Keep a Copy: Always retain a copy of your contract for reference and future use, in case of any disputes or clarifications.
5. Tax Identification Number
Spain & Portugal: Known as Número de Identificación Fiscal (NIF).
Why It’s Required?
Your NIF is essential for paying taxes, processing payroll, and opening a bank account while working in Spain or Portugal.
Make sure to obtain your NIF before starting your job to avoid delays in salary payments or legal issues.
6. Health Insurance / Medical Certificate
Why Is It Needed?
Some employers require proof that you have health coverage before starting work.
- For EU Citizens:
You can use your EHIC (European Health Insurance Card) to access healthcare. - For Non-EU Citizens:
You may need private health insurance or a medical certificate to comply with local requirements and ensure workplace safety.
7. Professional Certificates (If Required)
When It’s Needed?
Certain jobs, especially in skilled trades or technical roles, require licenses, certifications, or proof of experience.
Examples: Construction certificates, technical qualifications, trade licenses, or specialized training relevant to your job.
Ensure all certifications are recognized in Spain or Portugal to avoid delays or employment issues.
Conclusion
Ensuring you have all the required documents is the key to working legally, safely, and efficiently in Spain or Portugal. Proper preparation helps you avoid delays, fines, and any complications with your employment.
Apply now to work in Spain or Portugal and let LeedTech guide and assist you throughout the process. Contact Us to get started today.
FAQs
Do EU citizens need a work visa to work in Spain or Portugal?
No, EU/EEA citizens only need a valid national ID to work legally.
How can non-EU citizens apply for a work visa?
Apply through the local embassy or consulate before traveling. Ensure the visa matches your job type.
Is a social security number mandatory?
Yes, it is required for legal employment and to access health and social benefits.
Do I need health insurance to work in Spain or Portugal?
Yes, proof of coverage is required. EU citizens can use EHIC cards; non-EU citizens may need private insurance.
What professional documents might be required?
Depending on the job, certifications, licenses, or proof of experience may be necessary, especially in technical or skilled roles.



