Path 1: In-person at any Finanças office
The cheapest and most straightforward route if you're already in Portugal or visiting. Walk into any Serviço de Finanças office (the local tax authority branch — there's one in every município), bring:
- Valid passport
- Proof of address — either Portuguese (lease, utility bill) or non-Portuguese with apostille if requested
- If using a non-Portuguese address: a Portuguese fiscal representative is required for the NIF to be issued (see Path 2)
For British movers in country on a residence-application timeline, the practical path is: enter Portugal on a tourist stay, find temporary accommodation, walk to Finanças with your lease or hotel receipt, walk out with NIF the same day. No appointment required at most Finanças branches.
If you can produce a Portuguese address proof, no fiscal representative is needed at all — the NIF is issued on the spot in your own name.
Path 2: Remote NIF via fiscal representative
If you want NIF before arriving in Portugal — typically to open a bank account, sign a remote lease, or progress a property purchase from the UK — you go via a Portuguese fiscal representative.
The fiscal representative is a Portuguese-resident individual or company who acts as your tax-correspondence point with the AT. They apply for NIF on your behalf using their own Portuguese address as the registered address. You sign a power of attorney; they file at Finanças; NIF is typically issued within 3-10 working days.
Cost: one-off NIF acquisition typically €100-€300. Ongoing fiscal representation (where the rep continues to receive your tax correspondence after NIF issuance) typically €150-€500/year. Many British movers use a fiscal rep for the initial NIF and then immediately update the registered address to their Portuguese address once they arrive, terminating ongoing representation.
Post-Brexit specifics: as a non-EU national, you need a fiscal representative to maintain NIF with a non-Portuguese registered address. Once you become a Portuguese tax resident and update your address to a Portuguese one, the fiscal-rep requirement falls away.