German citizenship is based primarily on the principle of Jus sanguinis. In other words one usually acquires German citizenship if a parent is a German citizen, irrespective of place of birth.
A significant reform to the nationality law was passed by the German Parliament in 1999, and came into force on 1 January 2000. The new law makes it somewhat easier for foreigners resident in Germany on a long-term basis, and especially their German-born children to acquire German citizenship. Details
The previous German nationality law dated from 1913. The amendments to the law under the Nazi regime were repealed by the Federal Republic of Germany (see the article on the Reich Citizenship Law).
In general, birth in Germany does not confer German citizenship if neither parent is German. However, children born on or after 1 January 2000 to non-German parents acquire German citizenship at birth if at least one parent:
has a permanent residence permit (and has had this status for at least 3 years); and
has been residing in Germany for at least 8 years.
Such children will be required to apply successfully to retain German citizenship by the age of 23. Assuming the laws are not changed prior to 2023, they will normally be required to prove they do not hold any foreign citizenship.
Parents who are citizens of European Economic Area states or Switzerland are eligible to receive permanent resident permits after five years.
Descent from a German parent
Persons born to a parent who was a German citizen at the time of birth are usually German citizens on that basis. It does not matter whether they were born in Germany or not. Nor does it matter if the parent is naturalised German.
Those born after January 1, 1975 are Germans if the mother or father is a German citizen.
Those born before January 1, 1975 could normally only claim German citizenship from the father and not the mother. Exceptions included cases where the parents were unmarried (in which case German mothers could pass on citizenship) or where the German mother applied for the child to be registered as German on or before 31 December 1977.
Special rules exist for those born before 1 July 1993 if only the father is German and is not married to the mother. The father must acknowledge paternity before the child is 23, or acknowledge paternity and marry the mother and the child must declare himself or herself to be a German citizen.
In the future, those born outside Germany to a German parent who was also born outside Germany after 1999 will need to be registered as German citizens within 12 months of birth. An exception applies if the child is stateless.
Persons who are Germans on the basis of descent from a German parent do not have to apply to retain German citizenship by age 23. If they acquire another citizenship at birth, they can usually continue to hold this.
Naturalisation as a German citizen
German citizenship may be acquired by naturalisation by those with permanent residence who have lived in Germany for 8 years. Additional requirements include an adequate command of the German language and an ability to be self-supporting without recourse to welfare.
Applicants for naturalisation are normally expected to prove they have renounced their existing nationality, or will lose this automatically upon naturalisation. An exception applies to those unable to give up their nationality easily (such as refugees). A further exception applies to citizens of European Union member states that do not require Germans to renounce citizenship upon naturalisation in that country.
Exceptions to the normal residence requirements include:
A spouse of a German citizen may be naturalised after 3 years residence in Germany. The marriage must have persisted for at least 2 years.
persons who have completed an integration course may have the residence requirement reduced to 7 years
refugees and stateless persons may be able to apply after 6 years residence
former German citizens
German-born children
Under transitional arrangements in the 1999 reforms (in force from 1 January 2000), children who were born in Germany in 1990 or later, and would have been German had the law change been in force at the time, were entitled to be naturalised as German citizens.
An application for naturalisation was required by 31 December 2000.
The child was required to apply for retention of German citizenship by age 23 and normally show that no other foreign citizenship was held at that time.
A significant reform to the nationality law was passed by the German Parliament in 1999, and came into force on 1 January 2000. The new law makes it somewhat easier for foreigners resident in Germany on a long-term basis, and especially their German-born children to acquire German citizenship. Details
The previous German nationality law dated from 1913. The amendments to the law under the Nazi regime were repealed by the Federal Republic of Germany (see the article on the Reich Citizenship Law).
In general, birth in Germany does not confer German citizenship if neither parent is German. However, children born on or after 1 January 2000 to non-German parents acquire German citizenship at birth if at least one parent:
has a permanent residence permit (and has had this status for at least 3 years); and
has been residing in Germany for at least 8 years.
Such children will be required to apply successfully to retain German citizenship by the age of 23. Assuming the laws are not changed prior to 2023, they will normally be required to prove they do not hold any foreign citizenship.
Parents who are citizens of European Economic Area states or Switzerland are eligible to receive permanent resident permits after five years.
Descent from a German parent
Persons born to a parent who was a German citizen at the time of birth are usually German citizens on that basis. It does not matter whether they were born in Germany or not. Nor does it matter if the parent is naturalised German.
Those born after January 1, 1975 are Germans if the mother or father is a German citizen.
Those born before January 1, 1975 could normally only claim German citizenship from the father and not the mother. Exceptions included cases where the parents were unmarried (in which case German mothers could pass on citizenship) or where the German mother applied for the child to be registered as German on or before 31 December 1977.
Special rules exist for those born before 1 July 1993 if only the father is German and is not married to the mother. The father must acknowledge paternity before the child is 23, or acknowledge paternity and marry the mother and the child must declare himself or herself to be a German citizen.
In the future, those born outside Germany to a German parent who was also born outside Germany after 1999 will need to be registered as German citizens within 12 months of birth. An exception applies if the child is stateless.
Persons who are Germans on the basis of descent from a German parent do not have to apply to retain German citizenship by age 23. If they acquire another citizenship at birth, they can usually continue to hold this.
Naturalisation as a German citizen
German citizenship may be acquired by naturalisation by those with permanent residence who have lived in Germany for 8 years. Additional requirements include an adequate command of the German language and an ability to be self-supporting without recourse to welfare.
Applicants for naturalisation are normally expected to prove they have renounced their existing nationality, or will lose this automatically upon naturalisation. An exception applies to those unable to give up their nationality easily (such as refugees). A further exception applies to citizens of European Union member states that do not require Germans to renounce citizenship upon naturalisation in that country.
Exceptions to the normal residence requirements include:
A spouse of a German citizen may be naturalised after 3 years residence in Germany. The marriage must have persisted for at least 2 years.
persons who have completed an integration course may have the residence requirement reduced to 7 years
refugees and stateless persons may be able to apply after 6 years residence
former German citizens
German-born children
Under transitional arrangements in the 1999 reforms (in force from 1 January 2000), children who were born in Germany in 1990 or later, and would have been German had the law change been in force at the time, were entitled to be naturalised as German citizens.
An application for naturalisation was required by 31 December 2000.
The child was required to apply for retention of German citizenship by age 23 and normally show that no other foreign citizenship was held at that time.

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