Work under freedom of movement
No visa neededCitizens of EU countries, Iceland, Norway, Liechtenstein and Switzerland.

Portugal visas
Citizens of EU countries, Iceland, Norway, Liechtenstein and Switzerland.
Workers from outside the EU single market who are employed within it and temporarily work in another member country for the same employer, subject to conditions.
Workers from outside the EU single market staying over 90 days generally need long-stay permission.
Travellers from outside the EU single market need an appropriate route if they intend to work in Portugal.
Citizens of EU countries, Iceland, Norway, Liechtenstein and Switzerland can work without a visa under freedom of movement.
Travellers from outside the EU single market need an appropriate route if they intend to work in Portugal. Citizens of EU countries, Iceland, Norway, Liechtenstein and Switzerland can work without a visa under freedom of movement.
There are 3 options: Work under freedom of movement (no visa at all); Temporary work under the Van Der Elst rule (a special permit); Long-stay work permission (a special permit).
Citizens of EU countries, Iceland, Norway, Liechtenstein and Switzerland.
Do not use the ordinary short-stay visa exemption to work in Portugal. Stays over 90 days generally require a long-stay visa or residence permit for travellers from outside the EU single market.
Yes. Rules depend on the country that issued your passport. Open the Portugal visa page and choose your passport for a plain answer.
Yes. Officials can refuse a visa or entry, even after you apply. Give true answers, bring the documents asked for, and keep proof of your onward trip and money.
On Portugal's official immigration or foreign ministry website, or at its embassy. Rules change, so check close to your trip.
Often you cannot switch visa type inside the country. Ask the immigration office before you travel if you might need to.
Reviewed by @snuck