Bad Character and British Citizenship: Good Character Risks in Naturalisation Applications

Written / legally reviewed by Adam Sierant on 16 June 2026.

“Bad character” is not the legal phrase used in the British Nationality Act 1981. The legal requirement is that the Secretary of State must be satisfied that the applicant is of good character. But many applicants experience a refusal as a finding that they are a person of “bad character”. That is why this article uses both expressions: the phrase applicants search for, and the legal test the Home Office applies.

For many people, British citizenship is the final step after years of residence, work, family life, tax payments and settlement in the UK. A good character refusal can therefore feel deeply unfair, especially where the applicant already has indefinite leave to remain, settled status, a British partner, British children, or a long history of contribution to the UK.

However, naturalisation is not automatic. It is a discretionary grant of citizenship. The Home Office will not only check residence, absences, English language and the Life in the UK Test. It will also examine whether anything in the applicant’s past or present conduct means the Secretary of State is not satisfied that the applicant meets the good character requirement.

This article explains how “bad character” issues arise in British citizenship applications, what the current Home Office guidance says, what the leading cases teach, and how a careful applicant should prepare before submitting Form AN.

Bad character in British citizenship applications

The legal test is “good character”

The British Nationality Act 1981 does not define good character. The current Home Office guidance states that each application must be considered individually and that the decision-maker must be satisfied, on the balance of probabilities, that the applicant is of good character. That assessment requires the Home Office to consider all available information about the applicant’s character, including negative factors and any credible mitigation.

This is important. The Home Office should not simply ask whether something negative appears on the applicant’s record. It should ask whether, looking at the evidence overall, the applicant has satisfied the good character requirement. At the same time, the applicant should not assume that positive conduct in the UK automatically cancels out serious criminality, dishonesty, immigration breaches or national security concerns.

The safest way to approach a naturalisation application is to treat good character as a separate legal requirement requiring its own risk assessment.

Naturalisation is discretionary, even where the applicant has ILR

Indefinite leave to remain or settled status is often the platform from which a person applies for British citizenship. But it does not guarantee naturalisation. Citizenship is a separate nationality decision. The Home Secretary may grant naturalisation only where the statutory requirements are met and where the Secretary of State thinks fit to grant.

This means an applicant can be settled in the UK but still refused citizenship if the Home Office is not satisfied about good character. Settlement can be highly relevant, but it is not a character amnesty.

Criminal convictions, cautions and driving offences

Criminality is one of the most common good character issues. The current Home Office guidance says that a person will normally be refused where they have received a custodial sentence of at least 12 months, consecutive sentences totalling at least 12 months, are a persistent offender showing particular disregard for the law, have committed an offence causing serious harm, or have committed a sexual offence or are recorded by the police on a relevant register.

Less serious offending can still matter. A custodial sentence of less than 12 months, a non-custodial sentence or an out-of-court disposal may lead to refusal if the Home Office is not satisfied, on the balance of probabilities, that the applicant is of good character.

Applicants must be careful with the word “minor”. A parking ticket will not usually be the same as a drink-driving conviction. A single historic speeding matter will not usually carry the same weight as repeated motoring offences. But the good character guidance expects disclosure of criminal convictions and relevant disposals, and Guide AN tells applicants to disclose matters such as convictions, non-custodial sentences, out-of-court disposals, fiscal fines, civil penalties, civil judgments, drink driving and relevant driving endorsements.

The practical rule is simple: if it may be relevant, do not hide it. A disclosed issue can sometimes be explained. A hidden issue may become a deception case.

Pending charges and events after the application

Good character is not frozen on the day the online form is submitted. Guide AN says that an applicant who is arrested or charged after making the application, while the application is still under consideration, must tell the Home Office. A person who fails to do so risks refusal and may risk prosecution for a false declaration.

If there is a pending charge, investigation, court hearing or sentence, it is often unwise to apply for naturalisation until the position is clear. The timing of the application can be as important as the evidence.

Deception, dishonesty and failure to disclose

Dishonesty is often more damaging than the original issue. The Home Office can consider deception in the citizenship application itself, in earlier immigration applications, in dealings with other government departments, in benefit matters, tax matters, identity evidence, documents or previous statements.

A genuine mistake is not the same as deliberate deception. But where the Home Office believes that an applicant deliberately concealed information, supplied false documents, used a false identity, gave inconsistent personal details, or failed to disclose a material matter, the case becomes substantially more serious.

This is why a naturalisation application with a character issue should not be completed casually. The form should not be allowed to tell the story badly. If there is a risk of misunderstanding, the application may need a clear written explanation and supporting evidence.

Tax, bankruptcy, liquidation and financial conduct

The good character requirement is not limited to criminal offending. The Home Office may consider financial soundness, including unpaid tax, National Insurance issues, bankruptcy, company liquidation, director conduct, public funds fraud, council tax issues and NHS debt.

Financial difficulty is not automatically bad character. People become insolvent for many reasons, including illness, redundancy, business failure, domestic circumstances or wider economic conditions. The key question is often whether there was dishonesty, concealment, fraud, reckless conduct, deliberate non-payment, or failure to comply with legal obligations.

Applicants with self-employment, directorships, bankruptcy, liquidation or HMRC issues should obtain records before applying. A vague statement that “everything is fine now” may not be enough. The evidence should show what happened, whether the applicant was culpable, what was paid or resolved, and why the issue should not prevent a finding of good character.

Immigration breaches, illegal entry and dangerous journeys

Immigration history can affect naturalisation. Overstaying, working without permission, absconding, failure to comply with reporting conditions, assisting illegal migration, hiring illegal workers, false documents or other breaches may all be relevant.

The most important current issue is previous illegal entry and arrival after a dangerous journey. For applications made from 10 February 2025, the Home Office guidance states that a person who previously entered the UK illegally will normally be refused British citizenship, regardless of how much time has passed. The guidance also says that a person who arrived in the UK without required valid entry clearance or electronic travel authorisation, having made a dangerous journey, will normally be refused. Examples of a dangerous journey include small boat arrivals and travel concealed in a vehicle or other conveyance.

The guidance contains important exceptions and additional considerations. It may be appropriate to disregard illegal entry, overstaying or arrival after a dangerous journey where it was outside the applicant’s control, including reliable evidence of trafficking or modern slavery. There are also specific considerations for children and for certain refugee-related protections. These cases are not routine Form AN applications. They require careful analysis of the applicant’s history, status, evidence and timing.

Historic political, military or organisational associations

Some of the most difficult good character cases involve events outside the UK. The Home Office may consider allegations or evidence relating to terrorism, national security, war crimes, crimes against humanity, genocide, extremist activity, corrupt state organisations, oppressive political parties, armed groups or organisations associated with serious human rights abuses.

The applicant may have lived responsibly in the UK for many years. They may have worked, paid tax, raised a family and committed no offences. That positive conduct matters, but in serious historic-association cases it may not be enough. The applicant must confront the specific concern. What was the organisation? What was the applicant’s role? Was membership compulsory, voluntary, opportunistic or ideological? Did the applicant benefit from it? Did they hold rank or influence? Were they personally involved in wrongdoing? Have they clearly distanced themselves from the organisation or conduct?

General character references are rarely enough in this type of case. The evidence must answer the Home Office’s likely concern directly.

What the main cases teach

Hiri: the Home Office must assess the whole person

In R (Hiri) v Secretary of State for the Home Department [2014] EWHC 254 (Admin), the applicant had been refused naturalisation because of an unspent speeding conviction. He also had powerful positive evidence, including military service and strong character evidence from senior military figures. The court held that the refusal was flawed because the Home Office had not properly weighed the countervailing evidence of good character.

Practical lesson: a conviction matters, but the Home Office should not apply the policy mechanically. Where the negative issue is limited, old, isolated or explained, the application should contain evidence showing the whole person: conduct since the offence, rehabilitation, contribution, responsibility and absence of repeated problems.

Khan: minor offending can still matter

In R (Khan) v Secretary of State for the Home Department [2013] EWHC 1294 (Admin), the court upheld a refusal involving a driving offence. The case is a reminder that the Home Secretary is allowed to set a high standard for citizenship, and the court will not lightly substitute its own view of character for that of the decision-maker.

Practical lesson: an applicant should not decide for themselves that a conviction, disposal or driving offence is too small to mention. The safer approach is disclosure, explanation and evidence.

Xue Zhen Cao: identity inconsistencies can become dishonesty

In R (Xue Zhen Cao) v Secretary of State for the Home Department [2015] EWHC 286 (Admin), the applicant had used different dates of birth. The court accepted that the Home Office was entitled to treat the unexplained use of different dates of birth as intentionally misleading.

Practical lesson: identity inconsistencies should be addressed before the Home Office raises them. Different names, dates of birth, nationalities, passports, family details or document histories require a careful explanation and supporting evidence.

Al-Enein: ILR does not necessarily erase earlier immigration problems

In R (Al-Enein) v Secretary of State for the Home Department [2019] EWCA Civ 2024, the Court of Appeal considered the relationship between immigration history and good character in a citizenship application. The case illustrates the danger of assuming that a grant of leave or settlement necessarily prevents the Home Office from considering earlier immigration non-compliance when deciding naturalisation.

Practical lesson: settlement is important, but naturalisation remains a separate nationality decision. If the applicant’s immigration history includes overstaying, unlawful presence, deception or other breaches, the application should not simply rely on the fact that ILR was later granted.

Thamby, Alaian and Sandy: historic associations can carry serious weight

In R (Thamby) v Secretary of State for the Home Department [2011] EWHC 1763 (Admin), concerns linked to past involvement with the LTTE followed the applicant into the naturalisation stage. In Alaian & Anor v Secretary of State for the Home Department [2022] EWHC 3012 (Admin), former Ba’ath Party membership was central to refusal. In R (Sandy) v Secretary of State for the Home Department [2023] EWHC 640 (Admin), the High Court confirmed the demanding nature of judicial review challenges to good character refusals where historic association with forces linked to war crimes was alleged.

Practical lesson: positive life in the UK may not outweigh serious unresolved concerns about historic associations. The burden remains on the applicant. If the issue is political, military, security-related or linked to serious international crimes, the application needs careful, direct evidence and legal analysis.

FGF: even in sensitive cases, reasons may matter

In FGF v Secretary of State for the Home Department, a Special Immigration Appeals Commission case, the refusal of naturalisation was quashed because the reasoning was insufficient to permit meaningful review. The Home Office had assessed the case as marginal and recommended grant, but the Home Secretary departed from that recommendation without adequate explanation.

Practical lesson: the Home Secretary has a wide margin of judgment, but not an unlimited one. Where a refusal is unexplained, internally inconsistent, based on an apparent factual error, or impossible to understand, there may be grounds for challenge.

How to prepare or challenge a good character decision

Before applying: carry out a character risk audit

A strong naturalisation application starts before the form is submitted. If there is any possible good character issue, the applicant should identify it, obtain documents and decide whether to apply now, wait, or submit detailed representations.

The risk audit should cover:

• criminal convictions, cautions, warnings, reprimands, fiscal fines, civil orders and overseas offending;
• driving offences, drink driving, endorsements and patterns of fixed penalties;
• pending charges, investigations, court hearings or sentencing;
• tax, National Insurance, HMRC, Companies House, bankruptcy, liquidation and director issues;
• benefits, public funds, NHS debt, council tax and civil judgments;
• overstaying, unlawful presence, illegal working, failure to report and immigration refusals;
• illegal entry, dangerous journeys, trafficking, childhood circumstances or events outside the applicant’s control;
• deception allegations, false documents, false representations or incorrect information in past applications;
• identity inconsistencies, including names, dates of birth, nationality or document history;
• historic political, military, intelligence, government-party or armed-group involvement;
• previous asylum, human rights, appeal, judicial review or settlement material that may be relevant to character.

Decide whether the issue is disclosure, explanation or timing

Good character problems usually fall into three groups.

Disclosure cases are cases where the issue is not necessarily fatal, but must be declared. An old or isolated matter may be manageable if the applicant is frank.

Explanation cases require evidence and mitigation. The applicant may need to show rehabilitation, repayment, correction of tax affairs, absence of dishonesty, lack of culpability, childhood circumstances, coercion, trafficking, or a credible explanation for historic inconsistencies.

Timing cases are cases where applying now may be premature. It may be better to wait until a conviction is older, proceedings are finished, bankruptcy is discharged, a tax issue is resolved, or stronger evidence is available.

Use evidence, not emotion

Many applicants write long statements saying they love the UK, have worked hard and want to be British. Those points may be genuine, but they are rarely enough in a serious good character case.

Useful evidence may include:

• court documents, sentencing remarks, police certificates or overseas criminal record certificates;
• evidence of rehabilitation, treatment, courses, counselling or voluntary work;
• employer, professional or community references addressing honesty, reliability and responsibility;
• HMRC records, tax calculations, payment plans, accountant letters and Companies House records;
• insolvency documents, bankruptcy discharge evidence or liquidation records;
• Home Office decision letters, appeal determinations and previous representations;
• NRM, trafficking, modern slavery or childhood evidence where relevant;
• country evidence, military records or expert material where historic political or security concerns arise;
• a clear chronology explaining what happened, why it happened, what has changed and why the applicant can now be regarded as of good character.

After refusal: reconsideration or judicial review?

There is no ordinary right of appeal against refusal of naturalisation. A person who believes the refusal was not soundly based on law, policy or procedure may be able to ask the Home Office to reconsider the decision using Form NR. In some cases, judicial review may be available.

A challenge is not strong simply because the applicant disagrees with the decision. The stronger challenge usually identifies a legal error: the wrong guidance was applied, relevant evidence was ignored, irrelevant matters were considered, the decision was irrational, reasons were inadequate, fairness required the applicant to be given a chance to respond, or the Home Office treated guidance as an inflexible rule.

Sometimes the better strategy is not to challenge immediately, but to wait and reapply with stronger evidence. The right approach depends on the refusal reasons, the evidence, the seriousness of the allegation, any time limits and the practical prospects of changing the outcome.

Frequently asked questions about bad character and British citizenship

Can I apply for British citizenship if I have a criminal conviction?

Possibly, but it depends on the offence, the sentence, when it happened, whether there is a pattern of offending, whether serious harm was caused, and what evidence of rehabilitation exists. The conviction should not be hidden. Failure to disclose can create a separate deception problem.

Can the Home Office refuse citizenship because I entered the UK illegally years ago?

Yes. For applications made from 10 February 2025, the current Home Office guidance says that previous illegal entry will normally lead to refusal, regardless of how much time has passed. The guidance includes important exceptions and additional considerations, including trafficking, childhood circumstances, events outside the applicant’s control and certain refugee-related protections. The policy is also subject to live litigation, so these cases need careful current-law assessment.

Can I challenge a refusal on good character grounds?

Sometimes. A reconsideration request may be possible where the decision was not soundly based on law, policy or procedure. Judicial review may be possible where there is an arguable public law error, such as irrationality, procedural unfairness, inadequate reasons or failure to consider relevant evidence. The court will usually give the Home Secretary a wide margin of judgment in naturalisation cases.

Sources and further reading

• Home Office, Good character requirement: caseworker guidance, version 7.0, published 30 April 2026.
• Home Office, Guide AN: Naturalisation as a British citizen, June 2026.
• Home Office, Naturalisation as a British citizen by discretion: nationality policy guidance, version 16.0.
• Home Office, Form NR: application for review when British citizenship is refused.
• R (Hiri) v Secretary of State for the Home Department [2014] EWHC 254 (Admin).
• R (Khan) v Secretary of State for the Home Department [2013] EWHC 1294 (Admin).
• R (Xue Zhen Cao) v Secretary of State for the Home Department [2015] EWHC 286 (Admin).
• R (Al-Enein) v Secretary of State for the Home Department [2019] EWCA Civ 2024.
• R (Thamby) v Secretary of State for the Home Department [2011] EWHC 1763 (Admin).
• Alaian & Anor v Secretary of State for the Home Department [2022] EWHC 3012 (Admin).
• R (Sandy) v Secretary of State for the Home Department [2023] EWHC 640 (Admin).
• FGF v Secretary of State for the Home Department, Special Immigration Appeals Commission.

Disclaimer: This article provides general information about the good character requirement in British citizenship applications. It is not legal advice. Naturalisation decisions are fact-sensitive, and the position in any individual case depends on the applicant’s full history, evidence, current Home Office guidance, pending litigation where relevant, and the law in force at the date of decision.