Back to Portugal
Social Security number

NISS — Social Security.

Register with Portuguese Social Security (Segurança Social) to get your NISS — needed to work, access public services and healthcare, and required for several visa routes.

Who it’s for

Anyone who will work in Portugal or needs access to public services — and D3 applicants.

Needed for
Work & public services
Unlocks
Healthcare & benefits
Required by
D3 & employment routes

What’s included.

Everything we take care of for you with your NISS — Social Security.

NISS registration with Segurança Social (Portuguese Social Security)
Document preparation and submission
Guidance on what the number unlocks
Coordination with your visa or employment process
Your NISS delivered

And much more!

Schedule your free meeting to start the process:

Book a meeting
How it works

A clear, guided process.

Five simple steps from first call to fully settled — you always know what's next.

1

Book a free call

Tell us where you are and where you want to go. We confirm what you need and how we can help.

2

Get your plan

Your dedicated case manager maps out the steps, documents and timeline — tailored to your situation.

3

We handle it

We do the legwork and coordinate every party, keeping you updated in your client portal at each stage.

4

Your secure client app

Access our app to exchange information and documents safely, with all the security required at every step.

5

You're settled

You arrive ready to live, not just survive — with the essentials in place and us a message away.

A couple settling into their new home
Why Viv Europe

We treat your move
like it's the only one.

Expert guidance with a personal, human-centered approach - so non-EU nationals navigate the process feeling supported every step of the way.

  • Personal & Digital Approach

    A dedicated representative plus a 24/7 client portal - a human touch backed by technology.

  • Pay Per Progression

    You only pay as we advance through each stage, so you see value before any payment.

  • 8 Years of Expertise

    Immigration experience and deep knowledge of local regulations.

  • 98%+ Success Rate

    We handle any denials at no extra cost - appealing or restarting as needed.

  • Easy Communication

    Email, WhatsApp or meetings - we adapt to however you prefer to stay in touch.

FAQ

Common questions.

What is the NISS for?

It's your Portuguese Social Security number — needed to work legally, access public services and healthcare, and it's required for routes like the D3 visa.

Do I need it for my visa?

Some routes require it (for example the D3). We tell you whether your specific visa needs a NISS and handle the registration.

Can you register it for me?

Yes. We prepare and submit the registration with Segurança Social and deliver your NISS.

Ready when you are.

Book a free 15-minute call and we'll map out exactly how this works for you.