Denaturalization
The annulment by a state of a previously acquired (naturalised) citizenship, most often for fraud or concealment of material facts when it was obtained.
Denaturalisation is the annulment by a state of a previously acquired (naturalised) citizenship. Unlike a voluntary renunciation of citizenship, denaturalisation is initiated by the authorities and is a compulsory measure.
The most common ground is a finding that citizenship was obtained fraudulently — through forged documents, concealment of material facts or false statements. Some countries' laws allow other grounds as well; the procedure usually requires a judicial or administrative decision and provides for a right of appeal.
International law restricts deprivation of citizenship where it would render a person stateless, so denaturalisation is used rarely and only in narrowly defined cases. For anyone planning naturalisation, this underlines the importance of accurate information and a lawful source of funds at every stage.
“The oath is not a closing date. Cases get reopened years later, and the trigger is almost always the same: something left out of the form — a former name, a refusal, a conviction — surfacing afterwards.”
Sergey Bolotin — Head of LegalFAQ
Would denaturalization also affect my family?
It depends on the country and the grounds: some legal systems extend the consequences to dependents whose status derived from the main applicant, others do not. The outcome is determined by national law and by the deciding authority.
Is there a point after which citizenship can no longer be revoked?
Some countries set a limitation period for review, while others impose none where fraud is established. Whether such a limit exists, and how long it runs, depends on the jurisdiction.
Can a revocation decision be challenged?
As a rule yes — the process normally involves judicial or administrative review with a right to be heard. The available instances and deadlines are set by national law.
Can a person be left stateless as a result?
International standards restrict deprivation of nationality that would leave a person stateless, and many states do not permit that outcome. Practice and reservations vary between countries.
What happens to investments and property if the status is annulled?
Ownership of assets is generally not cancelled by the loss of status, but rights that depend on being a citizen or resident fall away. The consequences are assessed case by case under national law.