New Residents

Legal & Tax Setup

07/09

Whether you're relocating to Portugal or starting a business activity, the first step is getting properly registered — legally, fiscally, and administratively. From obtaining your NIF to registering with Social Security or applying for residency permits, each process requires precision and compliance with Portuguese law.

We provide tailored assistance to ensure your legal and fiscal setup in Portugal is efficient, correct, and aligned with your goals.

Request information

Our services include

NIF for Residents & Non-Residents

We assist with obtaining a NIF — the essential starting point for any legal or financial activity in Portugal, with or without residency status.

NISS & Social Security Registration

We manage your enrolment with the Segurança Social, whether you're self-employed, hiring staff, or complying as part of a visa process.

Activity Registration for Freelancers

We help you open an activity with the Portuguese Tax Authority (AT), selecting the correct business classification (CAE / CIRS) and fiscal regime.

Residency & Immigration Coordination

In collaboration with immigration professionals, we help structure the fiscal side of your move, ensuring your tax obligations are addressed from day one.

Initial Legal Advisory & Document Support

We support you with formal requirements such as drafting powers of attorney, completing AT forms, and understanding your tax residence status.

Why Frontier

Why choose Frontier for your setup

Full legal-tax integration

Fast and efficient processing

Bilingual support

Confidential, personalised service