Individuals who move their legal domicile to Iceland shall wait 6 months for health insurance. But if an individual moves to Iceland from a country within the EEA, an application for health insurance is to be submitted so that the Icelandic Health Insurance can send a request to the previous country of residence and obtain confirmation of health insurance. In such cases, an individual may be insured retroactively from the registration date of the legal domicile. https://island.is/umsokn-um-sjukratryggingu