After Application (Naturalisation) Sweden

An alien can apply for and be granted Swedish citizenship (be naturalised) if he or she
  1. has provided proof of his or her identity,
  2. has reached the age of eighteen,
  3. holds a permanent Swedish residence permit,
  4. has been domiciled in Sweden
    1. for the previous two years in the case of Danish, Finnish, Icelandic, Norwegian citizens,
    2. for the previous four years in the case of a stateless person or one who is considered to be a refugee
    3. for the previous five years for other aliens,and
  5. has led and can be expected to lead a respectable life.