Registering your child as a British citizen is one of the most important immigration decisions a family can make. British citizenship not only allows your child to apply for a British passport, but also gives them the right to live, study and work in the UK without immigration restrictions.
At Lexvisa, our expert immigration team are specialists in British nationality law. As a leading London law firm, we help families successfully register their children as British citizens by ensuring applications are prepared correctly, supported with strong evidence and submitted under the correct legal route.
What Is Form MN1 and When Is It Used?
Form MN1 is the Home Office application form used to register a child under the age of 18 as a British citizen.
This form applies in several situations under the British Nationality Act 1981, including when:
- A child is born in the UK and their parents later become settled or British citizens
- A child is born abroad to British parents
- A child is adopted overseas by British citizens
- Parents renounced and later resumed British citizenship
- Citizenship is granted at the discretion of the Home Secretary
Determining the correct legal basis for the application is crucial. Many families are unaware that applying under the wrong section of the law can lead to unnecessary delays or refusals.
Our specialist nationality solicitors at Lexvisa carefully assess your child’s circumstances to ensure the application is submitted under the correct legal route, maximising the chance of success.
Does My Child Automatically Become a British Citizen?
Not every child needs to apply for citizenship.
Some children automatically acquire British citizenship, depending on where they were born and their parents’ immigration status.
For example, a child may automatically be British if:
- They were born in the UK to a British citizen parent
- They were born in the UK to a parent with Indefinite Leave to Remain
- They acquire citizenship by descent from a British parent
However, in many situations registration is still required, particularly where parents became settled after the child was born, or where the child was born abroad.
Our expert immigration team at Lexvisa regularly advise families on whether a child already holds citizenship or needs to apply using Form MN1.
What Are the Requirements for Registering a Child as a British Citizen?
A successful MN1 application must demonstrate that the child meets the relevant criteria under British nationality law.
Common routes include:
Children Born in the UK
A child born in the UK can apply if:
- One or both parents later obtain Indefinite Leave to Remain, or
- One or both parents become British citizens
Children Born Abroad
A child may qualify if:
- Their parent is British by descent and previously lived in the UK
- Their parents later relocate to the UK
- Their parent is serving in the UK armed forces
Discretionary Applications
The Home Secretary may grant citizenship if it is in the child’s best interests, taking into account factors such as:
- The child’s connection to the UK
- The length of residence in the UK
- The child’s future prospects
- The parents’ immigration status
- Any compelling compassionate circumstances
Our specialist British citizenship lawyers regularly prepare strong legal representations to support discretionary applications, particularly where children have long residence in the UK.
Does My Child Need to Meet the Good Character Requirement?
Yes. Children aged 10 or over must satisfy the good character requirement.
This means the child must:
- Respect UK laws and institutions
- Have no serious criminal convictions
- Demonstrate responsible behaviour as a UK resident
The Home Office will assess:
- Criminal records in the UK and overseas
- Immigration history
- Any pending legal matters
Failure to disclose relevant information can lead to refusal or future deprivation of citizenship.
Our expert immigration team at Lexvisa ensures all issues are carefully addressed before submission to avoid complications.
How Do I Apply for British Citizenship for My Child?
A child citizenship application can be submitted online or by post using Form MN1.
The process typically involves:
- Completing the MN1 application form
- Selecting the correct legal section of the British Nationality Act
- Paying the Home Office application fee
- Booking a biometric enrolment appointment
- Submitting supporting documents such as:
- Birth certificate
- Passports
- Immigration documents
- Evidence of parents’ status
Even minor mistakes can cause delays or refusals. Working with a specialist immigration solicitor ensures the application is accurate, complete and legally robust.
How Long Does a Child Citizenship Application Take?
Most MN1 applications are processed within 2–3 months, although processing times can vary depending on:
- Application complexity
- Home Office workload
- Whether additional documents are requested
Our leading London immigration lawyers ensure applications are prepared correctly from the outset to avoid unnecessary delays.
How Much Does It Cost to Register a Child as a British Citizen?
The current Home Office fee for Form MN1 is £1,214 per child.
This fee is non-refundable, even if the application is refused. This makes it particularly important to ensure the application is prepared correctly before submission.
Our specialist immigration solicitors at Lexvisa help families avoid costly mistakes and maximise the chance of approval.
What Happens if a Child Citizenship Application Is Refused?
If the Home Office refuses the application, you may be able to:
- Submit a fresh application, or
- Address the issues that led to refusal
Understanding why the application failed is essential before reapplying.
Our expert immigration team frequently assists families with refused citizenship applications, preparing stronger submissions to secure a successful outcome.
Why Choose Lexvisa for Your Child’s British Citizenship Application?
Applying for British citizenship for your child is a significant legal process and the consequences of mistakes can be costly.
Lexvisa is a leading London law firm with an expert immigration team specialising in British nationality law. We provide clear, strategic advice and prepare comprehensive applications to ensure your child’s future in the UK is secure.
Our services include:
- Assessing your child’s eligibility for British citizenship
- Preparing and submitting Form MN1 applications
- Advising on complex nationality law issues
- Assisting with refused citizenship applications
- Handling discretionary and exceptional cases
With specialists in UK immigration and nationality law, we help families navigate the process smoothly and successfully.
Contact Our Expert Immigration Team
Lexvisa is now part of the DJF Solicitors Group, giving our clients access to a broader network of legal expertise while continuing to provide specialist UK immigration and nationality advice. If you need guidance on registering your child as a British citizen or preparing a Form MN1 application, our immigration solicitors can help ensure the process is handled correctly from the outset. Book a consultation today and contact our immigration team to get started.
FAQ: Registering a Child as a British Citizen
Can a child become a British citizen if born in the UK?
Yes. A child born in the UK may be eligible to register as a British citizen if their parents later obtain Indefinite Leave to Remain or British citizenship.
What is Form MN1 used for?
Form MN1 is the Home Office application used to register children under 18 as British citizens under the British Nationality Act 1981.
How long does a child citizenship application take in the UK?
Most applications take around 2–3 months, although complex cases can take longer.
Does my child need to take the Life in the UK test?
No. The Life in the UK test is not required for children applying for citizenship.
Can a child have dual citizenship with the UK?
Yes. The UK allows dual nationality, although parents should check whether the child’s other country of nationality permits dual citizenship.
Do children over 10 need to meet the good character requirement?
Yes. The Home Office requires children aged 10 or over to demonstrate good character when applying for British citizenship.