By Gul Nawaz Khan, Senior Solicitor
Addison & Khan Solicitors

Common Reasons for Naturalisation Refusal and How to Prepare a Strong British Citizenship Application

Applying for British citizenship is often the final stage of a long immigration journey. Many applicants have already lived in the United Kingdom for many years and have obtained Indefinite Leave to Remain or settled status. It is therefore understandable that they may believe naturalisation will simply be the next step.

That is not always the case.

Naturalisation as a British citizen is a separate application. It is not automatically granted simply because somebody has held Indefinite Leave to Remain for a long period.

One of the most important requirements is the good character requirement.

The current Home Office guidance makes clear that good character is assessed by looking at the applicant’s conduct as a whole. The Home Office can consider criminality, immigration history, deception, financial matters and other conduct. Positive factors and genuine mitigation should also be considered. Each application must be decided on its individual circumstances.

At Addison & Khan Solicitors we regularly advise clients on British citizenship applications where there is a previous immigration problem, a naturalisation refusal, a County Court Judgment, debt, a criminal matter or some other concern about good character.

The important point is to identify any potential difficulty before the application is submitted.

What is the good character requirement for British citizenship?

There is no simple definition of good character which applies to every nationality application. The Home Office asks whether the applicant can properly be regarded as a person of good character after looking at all relevant circumstances.

The current guidance says that both adverse and positive matters should be considered. This means that a past problem does not necessarily determine the result of the application on its own.

The Home Office may look at matters including:

• Criminal convictions
• Cautions and other disposals
• Immigration breaches
• Illegal entry
• Overstaying
• Working without permission
• Deception in previous immigration applications
• Failure to disclose relevant information
• Financial problems and significant debt
• Unpaid council tax
• NHS debt
• Fraud involving public funds
• Repeated fixed penalties or penalty charge notices

For anyone considering a British citizenship application after ILR, the good character requirement should be reviewed carefully before the naturalisation application is filed.

Can a CCJ or debt cause a British citizenship application to be refused?

This is a common concern.

A County Court Judgment or outstanding debt does not automatically mean that a British citizenship application will be refused.

The current Home Office Good Character Guidance specifically states that an application will not normally be refused simply because a person is in debt. This is particularly relevant where repayments are being maintained or reasonable efforts are being made to clear the debt.

The position can become more serious where somebody has deliberately or recklessly accumulated significant debts and there is no evidence of a genuine intention to repay them.

This distinction is important.

A person who has experienced genuine financial difficulty but has entered into payment arrangements may be in a very different position from somebody who has repeatedly ignored creditors or deliberately avoided liabilities.

For that reason a CCJ and British citizenship application should be considered on its individual facts.

Relevant evidence may include payment arrangements, correspondence with creditors, proof of payments and an explanation of how the debt arose.

What about parking tickets and penalty notices?

Parking penalties are another issue which frequently causes unnecessary concern.

Home Office guidance confirms that a fixed penalty notice or penalty charge notice does not normally form part of a person’s criminal record and will not normally result in refusal by itself.

The position may become different if the penalty was not paid or if a challenge resulted in criminal proceedings and a conviction.

A pattern of repeated penalties over a short period can also become relevant. The Home Office guidance says that multiple fixed penalties can demonstrate disregard for the law and may therefore affect the good character assessment.

The Home Office should therefore look at the circumstances rather than simply counting the number of historic parking tickets.

Immigration history is increasingly important

A person’s immigration history can have a significant effect on a naturalisation application. This is particularly important following changes to the Home Office Good Character Guidance concerning illegal entry.

For citizenship applications made from 10 February 2025, a person who previously entered the UK illegally will normally be refused citizenship regardless of how much time has passed since the illegal entry.

The guidance also deals with people who arrived without the required entry clearance or electronic travel authorisation following a dangerous journey. This can include arrival by small boat or while concealed in a vehicle.

This is now an important consideration for anyone who originally entered the UK irregularly and later obtained refugee status, Indefinite Leave to Remain or another form of settlement.

However the Home Office guidance also contains important qualifications.

Caseworkers must consider circumstances where the entry was outside the person’s control. This can include trafficking and modern slavery. There are also specific considerations where the individual was a child at the relevant time.

The guidance also addresses the protection available to qualifying refugees under section 31 of the Immigration and Asylum Act 1999.

It is therefore important not to assume either that historic illegal entry is irrelevant or that refusal is inevitable in every case.

The full immigration history should be examined before a naturalisation application is submitted.

What about previous overstaying?

Overstaying and illegal entry should not be treated as exactly the same issue.

The current Home Office guidance recognises that certain historic immigration breaches relating to lawful residence can in some circumstances be disregarded where the applicant now holds Indefinite Leave to Remain.

There are however important exceptions. Illegal entry remains specifically relevant for applications made from 10 February 2025. Other matters such as working in breach of immigration conditions, employing illegal workers and failing to comply with reporting requirements must also continue to be considered.

Anyone who has previously overstayed should therefore obtain a proper review of their immigration history rather than assuming that the grant of ILR has automatically removed every possible good character issue.

Deception and failure to disclose information

Deception is one of the most serious issues in a British citizenship application.

The Home Office guidance states that an application will normally be refused where there is evidence of deception in the citizenship application itself or in a previous immigration application during the relevant ten year period.

The guidance also states that where an applicant fails to disclose information which would have resulted in refusal on good character grounds, the citizenship application must be refused unless the Home Office accepts that the omission was unintentional and genuinely made in error.

This is why full disclosure is so important.

A person should not deliberately leave out an old immigration refusal, conviction or other relevant matter simply because they believe the Home Office may not discover it.

In many cases a properly prepared explanation is considerably safer than failing to disclose the issue.

Criminal convictions and British citizenship

A criminal conviction does not mean that every naturalisation application will automatically fail.

The Home Office applies different considerations depending upon the type of sentence and the overall circumstances.

For current applications a custodial sentence of 12 months or more will normally result in refusal. Consecutive sentences totalling at least 12 months are treated similarly. Persistent offending and offences causing serious harm are also treated particularly seriously.

Where the sentence was less than 12 months or involved a non custodial disposal, the Home Office must consider whether the applicant satisfies the good character requirement on the balance of probabilities.

The number of offences, seriousness of the conduct, passage of time and evidence of changed behaviour can all be relevant.

A British citizenship solicitor should therefore examine the actual conviction and sentence rather than simply advising an applicant to wait a fixed number of years without considering the current guidance.

A recent successful naturalisation case

Addison & Khan Solicitors recently represented a client whose previous application for naturalisation had been refused on good character grounds.

The client had held Indefinite Leave to Remain since approximately 2012.

The refusal raised a number of concerns about his immigration and financial history. These included a County Court Judgment and substantial historic liabilities. A significant element of the financial history arose from parking related matters.

After the client instructed Addison & Khan Solicitors, we reviewed the previous refusal and the client’s full immigration history.

Further information and supporting documents were obtained. The circumstances surrounding the financial liabilities were examined carefully. Detailed representations were then prepared addressing the relevant Home Office Good Character Guidance and the client’s individual circumstances.

Following further correspondence and consideration of the case, the client’s application for British citizenship was ultimately approved.

The outcome is a useful reminder that a previous naturalisation refusal does not necessarily mean that British citizenship will never be possible.

Every refusal should be examined carefully to understand exactly why the Home Office reached its decision and whether the concerns can properly be addressed.

What should you check before applying for British citizenship?

Before paying the naturalisation application fee, an applicant should consider more than simply whether they have ILR and have passed the Life in the UK Test.

The following should normally be reviewed:

• The complete UK immigration history
• The circumstances of the applicant’s original entry to the UK
• Any period of overstaying
• Any allegation of illegal entry
• Previous visa refusals
• Any allegation of deception
• Criminal convictions or pending proceedings
• Cautions and fixed penalties
• Repeated parking or driving penalties
• County Court Judgments
• Significant outstanding debts
• Council tax issues
• NHS debt
• Tax matters
• Previous dealings with the Home Office or other government departments
• Periods spent outside the UK

The current Form AN guidance confirms that naturalisation is not an entitlement. An applicant must satisfy the statutory requirements before the Home Secretary can exercise discretion to grant British citizenship.

For most applicants who are not married to a British citizen, the standard route normally requires five years of qualifying residence and freedom from immigration time restrictions for at least 12 months before applying. Different provisions apply to the spouse or civil partner of a British citizen.

Can a refused British citizenship application be reconsidered?

A naturalisation refusal should be read carefully before deciding what to do next.

The appropriate course will depend on the reason for refusal.

In some cases further evidence or representations may be relevant. In others it may be preferable to address the underlying issue before making another citizenship application.

There is no single solution which applies to every good character refusal.

The key is to understand the Home Office’s reasoning and compare it with the current nationality guidance and the applicant’s actual circumstances.

How Addison & Khan Solicitors can assist

British nationality law can become complicated where an application involves a previous refusal, immigration breach, illegal entry, CCJ, debt, criminal conviction or an allegation of deception.

Addison & Khan Solicitors advises clients on:

• British citizenship and naturalisation applications
• Good character requirement cases
• Naturalisation refusals
• Citizenship applications following ILR
• Citizenship applications involving historic immigration breaches
• Illegal entry and British citizenship issues
• CCJs and financial matters affecting citizenship
• Criminal convictions and naturalisation
• Previous deception concerns
• Reconsideration of refused nationality applications

Our approach is to review the applicant’s history before submission and identify potential problems at an early stage.

Where a naturalisation application has already been refused, we examine the refusal decision together with the applicant’s immigration history and the current Home Office guidance before advising on the appropriate next step.

Conclusion

Obtaining Indefinite Leave to Remain does not automatically guarantee British citizenship. The good character requirement remains a separate and important part of the naturalisation process.

A CCJ or financial difficulty does not automatically mean refusal. A parking penalty does not normally prevent citizenship. Historic immigration breaches may require careful consideration. Illegal entry is now treated particularly seriously under the current Home Office policy. Deception and failure to disclose relevant information can also have serious consequences.

The best time to identify these issues is before the application is submitted.

Where there is a complicated immigration or personal history, proper preparation can make an important difference.

For advice concerning a British citizenship application, the good character requirement or a previous naturalisation refusal, contact the nationality and immigration team at Addison & Khan Solicitors.

Official Sources

• Home Office, Good Character Requirement: Caseworker Guidance, version 7.0, published 30 April 2026.
• Home Office, Form AN Guidance: Naturalisation as a British Citizen, updated 7 July 2026.
• British Nationality Act 1981, section 6 and Schedule 1.

Gul Nawaz Khan
Senior Solicitor
Addison & Khan Solicitors

This article provides general information about British nationality law and Home Office policy. It is not a substitute for legal advice on the circumstances of an individual case. Home Office guidance and nationality policy can change and should be checked at the date of any application.