Utl.is | The Icelandic Directorate of Immigration is a government agency that operates under the Ministry of Justice.
Vinnumalastofnun.is | The Directorate of Labour handles work permits.
Skra.is | Registers Iceland maintains the National Registry among other roles. This is where you register your legal domicile
Rsk.is | Iceland Revenue and Customs. This is where you file your taxes and get information related to taxes and import duties.