When a UK-born child is (or can become) British

Not every child born in the UK automatically becomes a British citizen. Citizenship depends entirely on your immigration status at the moment of the child's birth. If you were settled or British when your child was born, they became British automatically. If you were not, you have registration routes available, and understanding them now can save you time and uncertainty later.

Automatic British Citizenship at Birth

A child born in the UK automatically becomes a British citizen if, at the time of birth, at least one parent is a British citizen or is settled in the UK. Settled status means the parent holds Indefinite Leave to Remain (ILR), Indefinite Leave to Enter (ILE), or settled status under the EU Settlement Scheme. The status must be in place on the actual date of birth — if your parent gained ILR the day after the child was born, the child is not automatically British.

If both parents were neither British nor settled when the child was born, that child was not automatically British at birth, even though they were born on UK soil. This is a common misconception among expat and international families. The UK does not grant citizenship based simply on place of birth.

If your child is automatically British, you do not need to register them. You can apply directly for their first British passport through His Majesty's Passport Office. You will need to provide the child's full birth certificate and evidence of your British citizenship or settled status at the time of birth.

Registration Route 1: Parent Gains Settled Status or Citizenship After Birth

If your child was born in the UK but was not automatically British (because neither parent was settled or British at the time), you can register them once you gain settled status. This applies whether you gain Indefinite Leave to Remain, settled status under the EU Settlement Scheme, or British citizenship yourself.

You must submit the registration application using Form MN1 before your child turns 18. There is no waiver of this deadline — once they reach their 18th birthday, your child can no longer apply as a minor and must go through the adult naturalisation process instead, which is more stringent and costly.

The MN1 form is available online through GOV.UK and can be submitted digitally or by post. You will need to provide your child's birth certificate, proof of your settled status or British citizenship, and supporting documents including a passport-sized photograph and references from people who know your child well. If your child is aged 10 or over, they must also meet a good character requirement, which typically means having no criminal convictions or concerning conduct.

Registration Route 2: Ten Years' Continuous Residence

A child born in the UK to non-British, non-settled parents can register as British if they have lived in the UK continuously from birth until age 10, regardless of their parents' immigration status. This is a valuable route for families whose circumstances change slowly or who may not be on track for settled status.

To qualify under this route, your child must not have been outside the UK for more than 90 days in any single year of those first ten years. If your child spent three months abroad in one year during that period, they would no longer qualify. Documentation proving continuous UK residence is essential — school attendance records, medical records from your GP, NHS vaccination records, and nursery letters all help demonstrate this.

As with Route 1, you must submit the application before your child's 18th birthday. If your child is 10 or older at the time of application, they must satisfy the good character requirement.

Eligibility and the Good Character Requirement

If your child is under 10 years old when you apply for registration, no good character assessment is needed. However, if they are 10 or older, the Home Office will evaluate their good character. For children, this typically means checking that they have no criminal convictions or disciplinary issues that raise concerns about their conduct.

Good character assessments for children are generally straightforward if there are no criminal matters involved. However, if your child has had any run-ins with the law, it is worth seeking legal advice before submitting an application.

Registration Fees and Fee Waivers

As of April 2026, the fee to register a child as a British citizen under Form MN1 is £1,000 per child. Each child requires a separate application and pays the full fee — there is no family discount. The fee is non-refundable; if your application is refused, you lose the fee.

If your child turns 18 while the application is still being processed, an additional £130 citizenship ceremony fee becomes payable before citizenship is granted. This is because adults are required to attend a citizenship ceremony and take an oath of allegiance.

The Home Office recognises that registration fees can be a barrier for families experiencing financial hardship. You can apply for a fee waiver if you or your child's parents or guardians cannot afford the £1,000 fee. Eligibility criteria include having no fixed place to residence, receiving certain means-tested benefits, or being unable to afford basic living costs.

Fee waiver applications must be supported by evidence such as bank statements, proof of income, utility bills, or letters from local councils or charities confirming your situation. Applications are assessed individually, and waivers are granted at the Home Office's discretion when hardship can be demonstrated.

Processing Times and What Happens After Registration

The Home Office typically takes up to 6 months to process a child citizenship registration application. During this time, your child remains on their current visa or immigration status. Processing can take longer if the Home Office requests additional evidence or if your circumstances are complex.

Once your child is registered as a British citizen, you will receive a registration certificate. This certificate is the proof of citizenship. Your child then becomes independent of your immigration status — if you later lose your settled status or return to your home country, your child's British citizenship remains unaffected.

Applying for a British Passport

After registration, your child can apply for their first British passport through His Majesty's Passport Office. This is a separate application from the citizenship registration and has its own fee. As of 2026, a child's standard online passport application costs £66.50.

You will need to submit your child's citizenship registration certificate along with their application. Once you have a British passport, your child can travel freely within and out of the UK, and return to the UK without needing a visa. They are also entitled to consular protection from the UK government if they travel abroad.

Key Timelines and Deadlines

1. Application for registration under MN1 must be submitted before your child's 18th birthday.
2. The date of application is when the Home Office or receiving authority receives it, not when you send it — submit well in advance to avoid missing the deadline.
3. The Home Office processes most applications within 6 months, but there is no guarantee.
4. If your child turns 18 before a decision is made, they may be required to attend a citizenship ceremony and pay an additional £130 fee.
5. After registration is granted, apply for a British passport as soon as possible, especially if your child needs to travel.

Special Circumstances and Discretionary Registration

The Home Office has discretion to register children as British citizens in other circumstances beyond the two main routes described above. These might include children born to members of the UK armed forces after a certain date, or children in compelling or exceptional circumstances such as statelessness or abandonment.

If your child's situation does not fit the standard registration routes, it is worth seeking immigration legal advice. Many immigration lawyers and advisers can assess whether your child might qualify under discretionary provisions, and some charities provide free advice to families who cannot afford legal fees.

What British Citizenship Means for Your Child

Once your child is registered as a British citizen, they have the permanent right to live, work, and study in the UK without any immigration restrictions. They can apply for a British passport, which provides the strongest travel document and consular support worldwide. They can vote once they reach 18, and they are not subject to deportation.

If your child becomes a British citizen born in the UK (not by descent), they will be able to pass British citizenship to their own children born outside the UK, creating a lasting legacy of belonging for future generations.