Don't want to keep the IV/IV tax class combination that is automatically granted upon marriage? Then you and your wife or husband can submit an application for a tax class change to the tax office responsible for your place of residence.
If a German has married abroad, the marriage can be recorded in the marriage register upon application. Registry Office 1 in Berlin is responsible for notarizing marriages abroad for people who do not live in Germany.
Need a marriage certificate? You can get your marriage certificate from the registry office in the area in which the marriage took place. The registry office issues them from the marriage register.