I´m from EEA/EFTA - General information
EEA/EFTA citizens are nationals of one of the member states of The European Union (EU) or the European Free Trade Association (EFTA).
Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden and Switzerland.
A citizen of an EEA/EFTA member state may stay and work in Iceland without a permit for up to three months from his/her arrival in Iceland, or stay up to six months if he/she is seeking employment.
If the individual plans to reside longer in Iceland, he/she shall register his right to residency with Registers Iceland.
Residency in another Nordic country is not deducted from the residency period.
For British citizens:
British citizens in Europe after Brexit (by the Institute for Government).
Information for British citizens (by the directorate of Immigration in Iceland).