Spouses and life partners of Germans can also apply for naturalization per § 9 StAG. They are regularly naturalized if their partner has had their lawful habitual residence in Germany for three years and has not been convicted of any criminal offence.
Additionally, the pair must have found their own apartment or accommodation and can support themselves and their relatives (if applicable) together with their partner.
Applicants themselves must also lose or give up their previous nationality (see our article on “Dual Citizenship” to find out if your situation applies to the requirements of dual citizenship), respect German laws and societal norms, commit themselves to the free, democratic and constitutional order of Germany and can prove knowledge of the German language to at least level B1
The spouse’s required stay can only be shortened in exceptional cases, for example, if the marriage has lasted for three years and the spouse has worked abroad in the German interest as a member of internationally active companies and institutions.