FAMILY LAW
Contesting paternity and adoption in Cologne
Legal parenthood and biological parenthood do not always coincide, and where they diverge it is the statute that decides who is a parent. These questions touch custody, the child's name, maintenance and inheritance rights, and they call for discretion. I am Dr Hanna Schmidt, attorney at law at DR. SCHMIDT LEGAL in Cologne, and in family law I handle such cases confidentially from the first consultation to completion.
Acknowledgement is the quickest route to legal paternity
It requires the consent of the mother and of the child (section 1595 German Civil Code); where the mother has already died, her consent is not required.
As a rule an acknowledgement is ineffective as long as another man's paternity exists (section 1594(2)), and it cannot be made subject to a condition or a time limit (section 1594(3)). Since 1 April 2026 there is an important exception: under section 1595a the biological father can effectively acknowledge paternity even where another man is still the legal father – provided that the other man consents to the acknowledgement. Once the acknowledgement takes effect, the biological father becomes the child's legal father retroactively from the birth. Divorce proceedings brought by the mother are no longer a precondition.
Where court proceedings to establish another man's paternity are already pending, an acknowledgement by the (presumed) biological father during those proceedings is generally ineffective (section 1594(5)) – unless he declares it on the court record.
Acknowledgement is permissible even before the birth.
As to form: the acknowledgement and the consents have to be publicly recorded (section 1597). Declarations by letter or message have no effect. The recording is done by a notary.
Having paternity established where none exists
Where no paternity exists through marriage or acknowledgement, it has to be established by a court (section 1600d German Civil Code). In establishment proceedings the man who had intercourse with the mother during the conception period is presumed to be the father. Where there are serious doubts about paternity, that presumption does not apply.
Such proceedings work with expert reports and need preparation: which assertion has to be proved by whom decides the duration and the outcome. Paternity is also established where the issue is maintenance and the father disputes his role. How the resulting claim is calculated is set out on the page about maintenance in Cologne.
Contesting paternity: who may do so, and the deadlines
Anyone wanting to attack an existing paternity has to be entitled to do so. The statute names four groups: the man whose paternity exists, the biological father under particular conditions, the mother and the child (section 1600 German Civil Code). Additional hurdles apply to the biological father, for example where the child has a social and family relationship with the man whose paternity exists.
The period is two years from the point at which the entitled person learns of the circumstances telling against paternity (section 1600b). It does not begin before the child's birth, nor before an acknowledgement has taken effect. Once it expires, paternity remains, whatever the biological position.
Adoption: the child's welfare as the standard
Adoption is permissible where it serves the child's welfare and a parent-child relationship can be expected to develop between the adopter and the child (section 1741 German Civil Code). The most common case is a stepchild adoption: one spouse adopts their spouse's child alone. With the adoption, the legal relationship with the previous father ends.
Adults can be adopted too. For that the adoption has to be morally justified, in particular where a parent-child relationship has already developed between those involved (section 1767). Adoption has effects well beyond family law: it creates inheritance rights between the child and the parent in both directions. How that affects a will and the compulsory share I deal with alongside, in inheritance law.
What often goes wrong with contested paternity and adoption
01
Informal declarations
An acknowledgement declared by message is void. So is consent without recording (section 1597 German Civil Code). Weeks later it turns out that nothing happened in law, while everyone involved assumed a decision had been taken.
02
Letting the period for contesting lapse
Two years sounds long but passes unnoticed, because nobody records when it started. Once it expires, legal paternity remains, with all the consequences for maintenance and inheritance. Anyone with doubts should document when they learned what and have it examined early.
03
Underestimating the consequences of a stepchild adoption
With the adoption, the other parent's legal parenthood ends. Years later a family wishes the old arrangement back, and that is practically impossible. Before the application, therefore, what the adoption dismantles in law belongs on the table.
How I proceed
01
Initial consultation: establishing the starting position
In the initial consultation, at Jakordenstrasse 8 or by video, we clarify the starting position: what legal parenthood exists today, what your aim is, and which parties have to consent or will be heard.
02
Acknowledgement, proceedings or adoption
Then comes the route: acknowledgement with accompanied recording, establishment or contesting proceedings with prepared documents, or adoption proceedings with the application coordinated and support at the family court hearing.
03
Cross-border situations
In cross-border situations, for example where one party lives abroad, I additionally examine which documents and translations are needed.
04
Confidentiality
Everything you tell me stays between us. That naturally also covers the mere fact that you came to see me.
A typical situation
01
The new partner wants to adopt the child
A mother is in a new relationship, her son bears the name of her former partner, who has had no contact for years. The current legal father has to consent. In parallel it is examined whether a social and family relationship exists between the child and the current father, because many applications fail on that point.
Parentage and adoption in Cologne: office and jurisdiction
My office is at Jakordenstrasse 8 in 50668 Cologne. Acknowledgement and consents are publicly recorded before a notary (section 1597 German Civil Code). For family matters in Cologne the family court at the Cologne Local Court decides, with appeals going to the Cologne Higher Regional Court.
Which court has local jurisdiction follows statutory rules and not simply where you live, which is why I clarify it before any application. Clients come from Cologne, the surrounding area – from Bergisch Gladbach, Leverkusen, Bruehl, Huerth, Kerpen, Frechen and Pulheim – and from across Germany. Appointments are available Monday to Thursday until 7 pm and Fridays until 5 pm.
YOUR QUESTIONS
Frequently asked questions
Through publicly recorded declarations: the man acknowledges, and the mother and child consent (sections 1595 and 1597 German Civil Code). The recording is done before a notary. The acknowledgement does not take effect as long as another man's paternity exists (section 1594), unless the person acknowledging is the biological father and the legal father consents (section 1595a). The previous legal father then loses his status as father retroactively. The acknowledgement must not be subject to a condition or time limit. Acknowledgement is possible even before the birth.
Two years from the point at which you learn of the circumstances telling against paternity (section 1600b German Civil Code). The period does not begin before the birth, nor before an acknowledgement takes effect. For minors the period for contesting only starts on reaching majority, and their period does not end before their 21st birthday. Record when you learned what.
The new spouse adopts their spouse's child alone (section 1741 German Civil Code). The standard is the child's welfare, and a parent-child relationship is expected. What is needed is the consent of the current legal father, or a statutory exception in which the court replaces it, plus the child's consent once it has reached a certain maturity. With the adoption, the legal relationship with the previous father ends.
Yes. Adopting an adult has to be morally justified, in particular where a parent-child relationship has already developed between those involved (section 1767 German Civil Code). Long-standing step-parent or foster relationships are typical. The effect covers the name and the position in inheritance law. Some effects differ from the adoption of a minor, for instance as to the name where the adoptee objects.
I bill by time; my hourly rate is 280 euros plus 19% VAT, and you receive an invoice with a detailed record of the work done. The statutory fees under the German Lawyers' Fees Act (RVG) form the minimum. An accompanied acknowledgement with recording stays modest; contesting or adoption proceedings take more time. Notary and court costs are additional. In the initial consultation I estimate the effort.
Establishing parenthood in law
Describe briefly which situation applies and what your aim is. In the initial consultation we clarify which route leads there and which forms and deadlines apply.
FAMILY LAW
Contesting paternity and adoption in Cologne
Legal parenthood and biological parenthood do not always coincide, and where they diverge it is the statute that decides who is a parent. These questions touch custody, the child's name, maintenance and inheritance rights, and they call for discretion. I am Dr Hanna Schmidt, attorney at law at DR. SCHMIDT LEGAL in Cologne, and in family law I handle such cases confidentially from the first consultation to completion.
Acknowledgement is the quickest route to legal paternity
It requires the consent of the mother and of the child (section 1595 German Civil Code); where the mother has already died, her consent is not required.
As a rule an acknowledgement is ineffective as long as another man's paternity exists (section 1594(2)), and it cannot be made subject to a condition or a time limit (section 1594(3)). Since 1 April 2026 there is an important exception: under section 1595a the biological father can effectively acknowledge paternity even where another man is still the legal father – provided that the other man consents to the acknowledgement. Once the acknowledgement takes effect, the biological father becomes the child's legal father retroactively from the birth. Divorce proceedings brought by the mother are no longer a precondition.
Where court proceedings to establish another man's paternity are already pending, an acknowledgement by the (presumed) biological father during those proceedings is generally ineffective (section 1594(5)) – unless he declares it on the court record.
Acknowledgement is permissible even before the birth.
As to form: the acknowledgement and the consents have to be publicly recorded (section 1597). Declarations by letter or message have no effect. The recording is done by a notary.
Having paternity established where none exists
Where no paternity exists through marriage or acknowledgement, it has to be established by a court (section 1600d German Civil Code). In establishment proceedings the man who had intercourse with the mother during the conception period is presumed to be the father. Where there are serious doubts about paternity, that presumption does not apply.
Such proceedings work with expert reports and need preparation: which assertion has to be proved by whom decides the duration and the outcome. Paternity is also established where the issue is maintenance and the father disputes his role. How the resulting claim is calculated is set out on the page about maintenance in Cologne.
Contesting paternity: who may do so, and the deadlines
Anyone wanting to attack an existing paternity has to be entitled to do so. The statute names four groups: the man whose paternity exists, the biological father under particular conditions, the mother and the child (section 1600 German Civil Code). Additional hurdles apply to the biological father, for example where the child has a social and family relationship with the man whose paternity exists.
The period is two years from the point at which the entitled person learns of the circumstances telling against paternity (section 1600b). It does not begin before the child's birth, nor before an acknowledgement has taken effect. Once it expires, paternity remains, whatever the biological position.
Adoption: the child's welfare as the standard
Adoption is permissible where it serves the child's welfare and a parent-child relationship can be expected to develop between the adopter and the child (section 1741 German Civil Code). The most common case is a stepchild adoption: one spouse adopts their spouse's child alone. With the adoption, the legal relationship with the previous father ends.
Adults can be adopted too. For that the adoption has to be morally justified, in particular where a parent-child relationship has already developed between those involved (section 1767). Adoption has effects well beyond family law: it creates inheritance rights between the child and the parent in both directions. How that affects a will and the compulsory share I deal with alongside, in inheritance law.
What often goes wrong with contested paternity and adoption
01
Informal declarations
An acknowledgement declared by message is void. So is consent without recording (section 1597 German Civil Code). Weeks later it turns out that nothing happened in law, while everyone involved assumed a decision had been taken.
02
Letting the period for contesting lapse
Two years sounds long but passes unnoticed, because nobody records when it started. Once it expires, legal paternity remains, with all the consequences for maintenance and inheritance. Anyone with doubts should document when they learned what and have it examined early.
03
Underestimating the consequences of a stepchild adoption
With the adoption, the other parent's legal parenthood ends. Years later a family wishes the old arrangement back, and that is practically impossible. Before the application, therefore, what the adoption dismantles in law belongs on the table.
How I proceed
01
Initial consultation: establishing the starting position
In the initial consultation, at Jakordenstrasse 8 or by video, we clarify the starting position: what legal parenthood exists today, what your aim is, and which parties have to consent or will be heard.
02
Acknowledgement, proceedings or adoption
Then comes the route: acknowledgement with accompanied recording, establishment or contesting proceedings with prepared documents, or adoption proceedings with the application coordinated and support at the family court hearing.
03
Cross-border situations
In cross-border situations, for example where one party lives abroad, I additionally examine which documents and translations are needed.
04
Confidentiality
Everything you tell me stays between us. That naturally also covers the mere fact that you came to see me.
A typical situation
01
The new partner wants to adopt the child
A mother is in a new relationship, her son bears the name of her former partner, who has had no contact for years. The current legal father has to consent. In parallel it is examined whether a social and family relationship exists between the child and the current father, because many applications fail on that point.
Parentage and adoption in Cologne: office and jurisdiction
My office is at Jakordenstrasse 8 in 50668 Cologne. Acknowledgement and consents are publicly recorded before a notary (section 1597 German Civil Code). For family matters in Cologne the family court at the Cologne Local Court decides, with appeals going to the Cologne Higher Regional Court.
Which court has local jurisdiction follows statutory rules and not simply where you live, which is why I clarify it before any application. Clients come from Cologne, the surrounding area – from Bergisch Gladbach, Leverkusen, Bruehl, Huerth, Kerpen, Frechen and Pulheim – and from across Germany. Appointments are available Monday to Thursday until 7 pm and Fridays until 5 pm.
YOUR QUESTIONS
Frequently asked questions
Through publicly recorded declarations: the man acknowledges, and the mother and child consent (sections 1595 and 1597 German Civil Code). The recording is done before a notary. The acknowledgement does not take effect as long as another man's paternity exists (section 1594), unless the person acknowledging is the biological father and the legal father consents (section 1595a). The previous legal father then loses his status as father retroactively. The acknowledgement must not be subject to a condition or time limit. Acknowledgement is possible even before the birth.
Two years from the point at which you learn of the circumstances telling against paternity (section 1600b German Civil Code). The period does not begin before the birth, nor before an acknowledgement takes effect. For minors the period for contesting only starts on reaching majority, and their period does not end before their 21st birthday. Record when you learned what.
The new spouse adopts their spouse's child alone (section 1741 German Civil Code). The standard is the child's welfare, and a parent-child relationship is expected. What is needed is the consent of the current legal father, or a statutory exception in which the court replaces it, plus the child's consent once it has reached a certain maturity. With the adoption, the legal relationship with the previous father ends.
Yes. Adopting an adult has to be morally justified, in particular where a parent-child relationship has already developed between those involved (section 1767 German Civil Code). Long-standing step-parent or foster relationships are typical. The effect covers the name and the position in inheritance law. Some effects differ from the adoption of a minor, for instance as to the name where the adoptee objects.
I bill by time; my hourly rate is 280 euros plus 19% VAT, and you receive an invoice with a detailed record of the work done. The statutory fees under the German Lawyers' Fees Act (RVG) form the minimum. An accompanied acknowledgement with recording stays modest; contesting or adoption proceedings take more time. Notary and court costs are additional. In the initial consultation I estimate the effort.
Establishing parenthood in law
Describe briefly which situation applies and what your aim is. In the initial consultation we clarify which route leads there and which forms and deadlines apply.
FAMILY LAW
Contesting paternity and adoption in Cologne
Legal parenthood and biological parenthood do not always coincide, and where they diverge it is the statute that decides who is a parent. These questions touch custody, the child's name, maintenance and inheritance rights, and they call for discretion. I am Dr Hanna Schmidt, attorney at law at DR. SCHMIDT LEGAL in Cologne, and in family law I handle such cases confidentially from the first consultation to completion.
Acknowledgement is the quickest route to legal paternity
It requires the consent of the mother and of the child (section 1595 German Civil Code); where the mother has already died, her consent is not required.
As a rule an acknowledgement is ineffective as long as another man's paternity exists (section 1594(2)), and it cannot be made subject to a condition or a time limit (section 1594(3)). Since 1 April 2026 there is an important exception: under section 1595a the biological father can effectively acknowledge paternity even where another man is still the legal father – provided that the other man consents to the acknowledgement. Once the acknowledgement takes effect, the biological father becomes the child's legal father retroactively from the birth. Divorce proceedings brought by the mother are no longer a precondition.
Where court proceedings to establish another man's paternity are already pending, an acknowledgement by the (presumed) biological father during those proceedings is generally ineffective (section 1594(5)) – unless he declares it on the court record.
Acknowledgement is permissible even before the birth.
As to form: the acknowledgement and the consents have to be publicly recorded (section 1597). Declarations by letter or message have no effect. The recording is done by a notary.
Having paternity established where none exists
Where no paternity exists through marriage or acknowledgement, it has to be established by a court (section 1600d German Civil Code). In establishment proceedings the man who had intercourse with the mother during the conception period is presumed to be the father. Where there are serious doubts about paternity, that presumption does not apply.
Such proceedings work with expert reports and need preparation: which assertion has to be proved by whom decides the duration and the outcome. Paternity is also established where the issue is maintenance and the father disputes his role. How the resulting claim is calculated is set out on the page about maintenance in Cologne.
Contesting paternity: who may do so, and the deadlines
Anyone wanting to attack an existing paternity has to be entitled to do so. The statute names four groups: the man whose paternity exists, the biological father under particular conditions, the mother and the child (section 1600 German Civil Code). Additional hurdles apply to the biological father, for example where the child has a social and family relationship with the man whose paternity exists.
The period is two years from the point at which the entitled person learns of the circumstances telling against paternity (section 1600b). It does not begin before the child's birth, nor before an acknowledgement has taken effect. Once it expires, paternity remains, whatever the biological position.
Adoption: the child's welfare as the standard
Adoption is permissible where it serves the child's welfare and a parent-child relationship can be expected to develop between the adopter and the child (section 1741 German Civil Code). The most common case is a stepchild adoption: one spouse adopts their spouse's child alone. With the adoption, the legal relationship with the previous father ends.
Adults can be adopted too. For that the adoption has to be morally justified, in particular where a parent-child relationship has already developed between those involved (section 1767). Adoption has effects well beyond family law: it creates inheritance rights between the child and the parent in both directions. How that affects a will and the compulsory share I deal with alongside, in inheritance law.
What often goes wrong with contested paternity and adoption
01
Informal declarations
An acknowledgement declared by message is void. So is consent without recording (section 1597 German Civil Code). Weeks later it turns out that nothing happened in law, while everyone involved assumed a decision had been taken.
02
Letting the period for contesting lapse
Two years sounds long but passes unnoticed, because nobody records when it started. Once it expires, legal paternity remains, with all the consequences for maintenance and inheritance. Anyone with doubts should document when they learned what and have it examined early.
03
Underestimating the consequences of a stepchild adoption
With the adoption, the other parent's legal parenthood ends. Years later a family wishes the old arrangement back, and that is practically impossible. Before the application, therefore, what the adoption dismantles in law belongs on the table.
How I proceed
01
Initial consultation: establishing the starting position
In the initial consultation, at Jakordenstrasse 8 or by video, we clarify the starting position: what legal parenthood exists today, what your aim is, and which parties have to consent or will be heard.
02
Acknowledgement, proceedings or adoption
Then comes the route: acknowledgement with accompanied recording, establishment or contesting proceedings with prepared documents, or adoption proceedings with the application coordinated and support at the family court hearing.
03
Cross-border situations
In cross-border situations, for example where one party lives abroad, I additionally examine which documents and translations are needed.
04
Confidentiality
Everything you tell me stays between us. That naturally also covers the mere fact that you came to see me.
A typical situation
01
The new partner wants to adopt the child
A mother is in a new relationship, her son bears the name of her former partner, who has had no contact for years. The current legal father has to consent. In parallel it is examined whether a social and family relationship exists between the child and the current father, because many applications fail on that point.
Parentage and adoption in Cologne: office and jurisdiction
My office is at Jakordenstrasse 8 in 50668 Cologne. Acknowledgement and consents are publicly recorded before a notary (section 1597 German Civil Code). For family matters in Cologne the family court at the Cologne Local Court decides, with appeals going to the Cologne Higher Regional Court.
Which court has local jurisdiction follows statutory rules and not simply where you live, which is why I clarify it before any application. Clients come from Cologne, the surrounding area – from Bergisch Gladbach, Leverkusen, Bruehl, Huerth, Kerpen, Frechen and Pulheim – and from across Germany. Appointments are available Monday to Thursday until 7 pm and Fridays until 5 pm.
YOUR QUESTIONS
Frequently asked questions
Through publicly recorded declarations: the man acknowledges, and the mother and child consent (sections 1595 and 1597 German Civil Code). The recording is done before a notary. The acknowledgement does not take effect as long as another man's paternity exists (section 1594), unless the person acknowledging is the biological father and the legal father consents (section 1595a). The previous legal father then loses his status as father retroactively. The acknowledgement must not be subject to a condition or time limit. Acknowledgement is possible even before the birth.
Two years from the point at which you learn of the circumstances telling against paternity (section 1600b German Civil Code). The period does not begin before the birth, nor before an acknowledgement takes effect. For minors the period for contesting only starts on reaching majority, and their period does not end before their 21st birthday. Record when you learned what.
The new spouse adopts their spouse's child alone (section 1741 German Civil Code). The standard is the child's welfare, and a parent-child relationship is expected. What is needed is the consent of the current legal father, or a statutory exception in which the court replaces it, plus the child's consent once it has reached a certain maturity. With the adoption, the legal relationship with the previous father ends.
Yes. Adopting an adult has to be morally justified, in particular where a parent-child relationship has already developed between those involved (section 1767 German Civil Code). Long-standing step-parent or foster relationships are typical. The effect covers the name and the position in inheritance law. Some effects differ from the adoption of a minor, for instance as to the name where the adoptee objects.
I bill by time; my hourly rate is 280 euros plus 19% VAT, and you receive an invoice with a detailed record of the work done. The statutory fees under the German Lawyers' Fees Act (RVG) form the minimum. An accompanied acknowledgement with recording stays modest; contesting or adoption proceedings take more time. Notary and court costs are additional. In the initial consultation I estimate the effort.
Establishing parenthood in law
Describe briefly which situation applies and what your aim is. In the initial consultation we clarify which route leads there and which forms and deadlines apply.