Have You Lost Your German Citizenship? How Loss Happens
The ways German citizenship can be lost — and why an ancestor’s loss may be the missing link in your claim.
German citizenship can be lost in several ways: voluntarily acquiring another citizenship before the 2024 reform without a retention permit, formal renunciation, certain foreign military service, or — historically — Nazi-era denaturalisation. Whether it happened, and when, often decides whether a line of descent still reaches you.
The main ways citizenship is lost
The most common historic cause is a voluntary foreign naturalisation before 27 June 2024 without a retention permit. Citizenship can also be lost by formal renunciation, by release on application (often to take another nationality), and — under §28 — by voluntarily joining the armed forces of another state without permission, though there are exceptions including for EU/EEA and certain treaty states.
Nazi-era denaturalisation
People persecuted between 1933 and 1945 were stripped of citizenship on racial, religious or political grounds. That loss is precisely what the restoration provisions — Article 116(2) and StAG §15 — exist to reverse, for the persecuted and their descendants.
Why an ancestor’s loss matters to you
For ordinary descent, citizenship must have passed unbroken through each generation. If an ancestor lost German citizenship before the next person in the line was born, the automatic chain breaks at that point — which is often the real reason a claim stalls.
A break is not always final
Where a line broke, restoration (for persecution), declaration under §5 or §15, or re-acquisition for former citizens may reopen it. The first step is always to pin down what was lost, and exactly when.
Does taking another passport still cost me German citizenship?
Not for acquisitions from 27 June 2024 — Germany now broadly permits dual citizenship. Earlier ones may have.
Was citizenship lost automatically, or only on renunciation?
Both are possible depending on the era and the event — automatic loss on foreign naturalisation was common before 2024.
If my ancestor was denaturalised by the Nazis, can it be restored?
Yes — that is exactly what Article 116(2) and StAG §15 are for, reaching descendants.