Who this page helps
Children and adults who may have a claim to British citizenship because one parent is or was British, settled or able to pass nationality.
Overview
Can you get British citizenship through a British parent?
A British parent can be the basis of British citizenship, but the rules are not the same for every family. Some people are British automatically from birth. Others need to register as British citizens. In older cases, historic nationality rules may have prevented a British mother or an unmarried British father from passing citizenship, and special registration routes may now be relevant.
The first step is not to choose a form. The first step is to confirm whether the person is already British. If they are already British, the correct route may be a passport application or formal status confirmation. If they are not automatically British, the next step is to identify the correct registration route and build evidence around that route.
This page is designed for children, adults, parents and families who need clear advice on British citizenship through a British parent, including birth in the UK, birth outside the UK, British citizenship by descent, UKF, UKM and child registration routes.
Latest position
What are the current British parent citizenship rules and fees?
Check automatic citizenship first
Many people with a British parent are already British automatically and may need a passport or status confirmation rather than a registration application.
Current child registration fee
From 8 April 2026, the standard fee for a child under 18 registering as British is £1,000. A £130 ceremony fee may be requested if the child turns 18 before the decision.
UKF and UKM adult cases
Some adults who missed out because of historic parentage rules may register through UKF or UKM and usually pay the £130 citizenship ceremony fee only.
Valid UK status still matters
A nationality application does not extend immigration permission. Anyone in the UK should keep lawful immigration permission while the application and any ceremony are pending.
Key facts
British citizenship through a British parent: key facts before you apply
Born in the UK
Some people born in the UK are British automatically. Others may register if a parent later became British or settled, or through the 10-year residence route.
Born outside the UK
Citizenship is usually passed automatically for one generation if the British parent could pass citizenship at the time of birth.
Historic parentage routes
UKF and UKM may help certain people who missed out because of older rules affecting unmarried fathers or British mothers.
Evidence-led case
Birth, parentage, marriage, paternity, adoption, citizenship and residence evidence must all align with the route relied on.
Decision timing
Most citizenship registration applications are expected to be decided within 6 months, although complex nationality history can take longer.
Born in the UK
Are you automatically British if you were born in the UK?
A person born in the UK before 1 January 1983 is usually British automatically, subject to limited exceptions. A person born in the UK on or after 1 January 1983 is usually British automatically if at least one parent was British or settled in the UK at the time of birth.
If the person was born in the UK but was not British at birth, registration may still be available. A child under 18 may usually register if a parent later became British or obtained permanent status. A person born in the UK who lived here for the first 10 years may have a separate registration route, provided the residence, absence and good character rules are met.
Do not apply before checking automatic citizenship
If you are already British, a registration application may be unnecessary. We can review your birth facts and parent status before recommending the right next step.
Born outside the UK
Can a child born outside the UK become British through a British parent?
British citizenship is normally passed automatically for one generation to a child born outside the UK, provided the British parent could pass citizenship at the time of birth. A parent who was born, adopted, naturalised or registered in the UK in their own right can often pass citizenship, while a parent who is British by descent may not automatically pass citizenship to a child born outside the UK.
If automatic citizenship does not apply, a child under 18 may still have registration options. These can include a route based on the British parent’s residence in the UK before the child was born, or a route based on the child and parents living in the UK for 3 years before the application. The correct route matters because it can affect whether the child becomes British by descent or otherwise than by descent.
Routes
Which British parent citizenship route may apply?
Born outside the UK on or after 1 July 2006
A person born outside the UK on or after 1 July 2006 may already be British if a parent was British at birth and that parent could pass on citizenship. Where automatic citizenship does not apply, a child under 18 may need to consider registration based on the family’s UK residence, a British parent’s previous UK residence, adoption, or a parentage issue.
Born outside the UK between 1983 and June 2006
A person born outside the UK in this period may already be British if the correct parentage and transmission rules were met. Where the British connection is through a father who was not married to the mother, UKF may be relevant if the person would have become British had the parents been married.
Born before 1983 to a British parent
Older cases require careful analysis because nationality law was very different before 1983. Some people may already be British through a married British father, while others may need UKM or UKF registration where a British mother or unmarried British father could not pass citizenship under the old rules.
Born in the UK with a British or settled parent
A person born in the UK on or after 1 January 1983 is usually British automatically if a parent was British or settled at the time of birth. A person born in the UK before 1983 is usually British automatically, subject to limited exceptions.
Born in the UK and parent later became British or settled
A child born in the UK who was not British at birth may usually register before turning 18 if a parent later became British or obtained permanent status. This route depends on the child’s UK birth, age, parentage and the parent’s later status.
Born in the UK and lived here for the first 10 years
A person born in the UK who lived here for the first 10 years may have a separate registration route. The evidence needs to show residence across childhood and address absences, especially if more than 90 days were spent outside the UK in any year.
UKF and UKM
When are UKF and UKM registration routes relevant?
UKF may be relevant where a person missed out on British citizenship because their British father was not married to their mother at the relevant time. The case normally needs to show that the person would have become British had the parents been married, and that the father had the right type of British status to pass citizenship.
UKM may be relevant where a person was born before 1983 to a British mother and would have become a citizen of the United Kingdom and Colonies by descent if women had been able to pass citizenship in the same way as men at the time. These cases often require birth certificates, parent and grandparent evidence, marriage records and historic nationality analysis.
Documents
What documents are usually important in a British parent citizenship case?
The document strategy depends on the route. Most cases need evidence of identity, birth, parentage, the British parent’s nationality status, how that status was acquired, and whether the parent could pass citizenship at the relevant time.
If the claim relies on a father, marriage or paternity evidence may be critical depending on the date of birth and family circumstances. Child registration cases may also need residence evidence, parental consent, good character information for children aged 10 or over, and evidence showing the child’s future and family position.
Birth and parentage evidence
Full birth certificates, adoption documents, paternity evidence, parental responsibility evidence and any marriage evidence needed for the relevant legal period.
British parent evidence
Parent’s birth certificate, British passport history, naturalisation or registration certificate, adoption records, Crown service or other evidence showing how citizenship was acquired.
Residence and timing evidence
Passports, travel history, school or medical records, parent residence evidence, consent, referees and good character information where required.
Request a British parent citizenship evidence review
We can check whether you are already British, identify the correct route and review the family documents before an application is prepared.
Request Status ReviewFees
How much does British citizenship through a British parent cost?
Child registration
£1,000
Standard fee for a child under 18 registering as a British citizen under the relevant child registration route.
Possible child ceremony fee
£130
May be requested if a child turns 18 before the citizenship application is decided.
Adult registration
£1,670
Applies to many adult registration routes, depending on the form and route used.
UKF / UKM registration
£130
Usually the ceremony fee only for eligible historic unmarried-father or British-mother registration applications.
Biometrics
No separate fee
Biometric enrolment is usually required, but the current citizenship fee table states there is no separate biometric fee.
Other costs
Case-dependent
Translation, replacement certificates, nationality status checks, document searches, passport applications and legal advice may add to the total cost.
How we help
How Access Global supports British parent citizenship cases
Build the application around nationality history, parentage and evidence
We help clients confirm whether they are already British, identify the correct registration route if needed, and prepare a clear evidence strategy for child, adult, UKF, UKM and born-abroad cases.
Process
British parent citizenship support pathway
1
Initial consultation
We review birth facts, parent status, family history and whether the person may already be British.
2
Route assessment
We identify whether the case is automatic citizenship, child registration, UKF, UKM or another nationality route.
3
Evidence strategy
We map birth, parentage, citizenship, residence, consent, paternity and historic records to the correct route.
4
Application support
We help prepare a structured case bundle and legal covering explanation where professional support is required.
5
Outcome planning
We advise on ceremony, certificate, passport, right of abode and next steps after the nationality decision.
Ask Access Global Immigration Visa Experts to review your British parent citizenship case
We can assess your route before you spend time and money on the wrong application or miss a stronger automatic citizenship argument.
FAQs
British citizenship through a British parent FAQs
Can I become British if one of my parents is British?
Possibly. Some people are British automatically through a British parent. Others may need to apply for registration. The answer depends on where and when you were born, whether your parent could pass citizenship, whether your parents were married at the relevant time, and whether any child or historic registration route applies.
Does British citizenship automatically pass to children born outside the UK?
British citizenship is normally passed automatically for one generation to a child born outside the UK if the British parent could pass citizenship. It is not always passed to the next generation born outside the UK, so family history and the parent’s own citizenship category must be checked carefully.
What does British citizen by descent mean?
A British citizen by descent is usually a person who became British through a parent and was born outside the UK. This can affect whether they can automatically pass citizenship to children born outside the UK. Some registration routes also affect whether citizenship is by descent or otherwise than by descent.
I was born outside the UK after 1 July 2006. Am I British?
You may already be British if a parent was British when you were born and could pass citizenship to you. If not, a child under 18 may still have registration options depending on the family’s UK residence, the British parent’s previous UK residence, adoption, or parentage facts.
I was born between 1983 and June 2006 to a British father who was not married to my mother. Can I apply?
You may be able to register through the UKF route if you would have become British automatically had your parents been married. The case will depend on proving paternity, your father’s British status and whether he could have passed citizenship at the time of your birth.
I was born before 1983 to a British mother. Can I register as British?
You may be able to register through the UKM route if you would have become a citizen of the United Kingdom and Colonies before 1983 had women been able to pass citizenship to children in the same way as men at the time. This route requires careful family-history evidence.
I was born in the UK. Do I need to apply for British citizenship?
Not always. A person born in the UK may already be British if a parent was British or settled at birth, or if they were born in the UK before 1983 subject to limited exceptions. If not automatically British, registration may be possible in certain circumstances.
Can a child born in the UK register when a parent later becomes settled or British?
Yes, a child born in the UK who was not British at birth may usually register before turning 18 if one parent later becomes British, obtains indefinite leave, settled status, permanent residence status or another qualifying permanent status.
What is the 10-year UK-born citizenship route?
A person born in the UK who lived here for the first 10 years may register as British, subject to residence, absence and good character rules. Evidence should cover the first 10 years of the person’s life.
Do I need Life in the UK or English language evidence for British parent registration?
These routes are registration routes, not standard adult naturalisation routes. The focus is usually on nationality entitlement, parentage, historic law, residence evidence, good character where relevant, referees and biometrics rather than adult naturalisation tests.
How long does a British parent citizenship application take?
Most citizenship registration applications are expected to be decided within 6 months. Complex cases involving old nationality law, missing records, overseas documents, paternity, adoption or multiple generations can take longer.
How can Access Global help with a British parent citizenship case?
We can assess whether you are already British, identify the correct registration route if needed, review birth and parentage evidence, analyse British by descent issues, prepare a clear evidence strategy and support the application through to outcome and next steps.