Can an old criminal conviction still affect a UK visa?

01 / The mandatory threshold

A sentence of 12 months or more does not age out of Part Suitability.

Paragraph SUI 5.1 requires refusal of entry clearance or permission where the applicant has received a custodial or suspended sentence of 12 months or more for an offence in the UK or overseas. The paragraph contains no general rehabilitation period after which the mandatory ground stops applying.

Since 26 March 2026, the express threshold includes a suspended sentence of 12 months or more. That change matters in cases where no time was served in custody. The legal classification follows the sentence imposed, not an assumption that a suspended sentence is only a warning.

Mandatory refusal also applies where the person is a persistent offender who shows a particular disregard for the law or has committed an offence or offences which caused serious harm. A short sentence is therefore not conclusive. The conduct can engage a different mandatory limb.

02 / The discretionary ground

Below 12 months, the question changes from automatic refusal to judgment.

Paragraph SUI 5.3 permits refusal where the applicant received a custodial or suspended sentence of less than 12 months, a non-custodial sentence or a recorded out-of-court disposal. It does not create a general rule that an application must succeed once a fixed period has passed.

The caseworker guidance requires an individual assessment. Relevant factors include whether the person already has permission, whether this is a first application, the number and seriousness of offences, the relevance of the offence to the application, ties to the UK, time since the offence and whether permission has been granted since it occurred.

Positive factors can support the exercise of discretion: an isolated youthful offence followed by a clean record, completed treatment or programmes and other meaningful evidence of changed behaviour. Mere passage of time is weaker than a documented explanation of what changed and why the risk is now different.

03 / Harm and pattern

The sentence does not answer serious harm or persistent offending.

Serious harm concerns the harm caused by the particular offence. The guidance identifies physical, psychological, emotional or economic harm to a victim, and harm to a community or society, while stressing that the sentencing label is not always determinative. Violent, drug-related, racially motivated and sexual offending will normally be treated with particular gravity.

Persistent offending concerns pattern and disregard for the law. Several low-level disposals may be more damaging than a single one if they show repeated or escalating conduct. Conversely, an established period of rehabilitation can support the conclusion that the person is no longer someone who keeps offending.

The application should therefore avoid arguing only from sentence length. Sentencing remarks, the offence facts, victim impact, number and dates of incidents, later conduct and any evidence addressing the cause of offending may all affect which rule applies.

04 / Visitors and ETA

The 12-month visitor and ETA rules answer different questions.

For a visitor or a person seeking entry for less than 6 months, SUI 5.4 requires refusal for a custodial or suspended sentence below 12 months until more than 12 months have passed since the end of the sentence. For a non-custodial sentence or recorded out-of-court disposal, the mandatory period runs until more than 12 months have passed since the date of conviction. After that, discretionary refusal under SUI 5.3 can still be considered.

An ETA is advance permission to travel, not permission to enter, and Part Suitability does not govern the ETA application itself. Appendix Electronic Travel Authorisation requires refusal for a custodial or suspended sentence of 12 months or more, and for any criminal conviction unless more than 12 months have passed since the date of conviction. Non-conducive grounds can remain relevant outside those criminality limbs.

A person should not assume that an ETA refusal proves a visit visa must also fail, or that waiting 12 months guarantees either permission. The legal instrument, calculation date, sentence and residual suitability assessment are different. Where travel timing is material, those differences should be resolved before booking around an assumed eligibility date.

05 / Spent convictions and disclosure

Employment rehabilitation rules are not a safe answer to a visa-form question.

The Home Office guidance states that immigration and nationality decision-making is excluded from the rule which would otherwise mean spent convictions need not be disclosed. Applicants are required to disclose offences and consequent penalties in the UK and overseas in accordance with the questions asked on the application form.

The same guidance draws a specific distinction for spent cautions. It states that a simple caution becomes spent immediately, does not need to be declared and must not be taken into account even if volunteered. An unspent conditional caution can be treated differently, particularly where foreign-national-offender conditions restrict return.

Disclosure should follow the current form and the true legal record, not memory or a generic police-certificate summary. An omission can create a separate false-representation or deception issue. Where the form, rehabilitation status or overseas disposal is unclear, resolve it and explain it rather than guessing that age makes the answer immaterial.

06 / Overseas convictions

The overseas sentence is the starting point, not the sentence a UK court might have imposed.

Current guidance directs caseworkers to use the sentence imposed by the overseas court when applying the Rules. It is generally not appropriate to substitute a hypothetical lower sentence which the applicant says would have been imposed for an equivalent offence in the UK.

Where the overseas disposal has no direct UK match, it should be classified by its broad equivalent. The guidance requires overseas offending to be disregarded where the underlying conduct would not be criminal in the UK, giving homosexuality and trade-union membership as examples.

A foreign pardon does not generally erase the fact of conviction or sentence for this purpose. A commuted sentence is treated by reference to the reduced sentence, while a conviction quashed on appeal is different. Certified judgments, sentence orders, appeal outcomes, translations and an accurate explanation of the foreign disposal may therefore be essential.

07 / Route and consequences

Visa suitability, citizenship good character and deportation are not the same assessment.

This article concerns applications for entry clearance or permission under Part Suitability and the separate ETA rules. British citizenship uses the statutory good-character framework. Deportation, cancellation and Article 8 claims engage additional statutory and Immigration Rules provisions. A conclusion reached for one decision should not be copied into another without checking its legal basis.

Part Suitability itself does not apply identically to every immigration route, and its opening provisions contain exclusions and route-specific qualifications. Existing settlement held by a person in-country is also subject to a distinct statutory cancellation framework. The operative route and present status must be identified before the criminality provisions are applied.

Where refusal is mandatory, a submission about discretion cannot change the rule. Where refusal is discretionary, the representation must address the published factors and any route-specific rights or consequences. If a human-rights claim is engaged, it should be analysed as such rather than used as a generic plea for leniency.

08 / Evidence and filing control

Build the legal map before the mitigation bundle.

Begin with the official outcome: offence, jurisdiction, conviction date, sentence, suspension period, orders, appeal, completion date and whether any conditions remain. Reconcile that record with every earlier UK application and decision. Inconsistent dates or descriptions can be as damaging as an incomplete account.

Next classify the case: mandatory sentence threshold, serious harm, persistent offending, visitor rule, ETA rule or discretionary criminality. Only then decide what evidence is capable of changing the decision. The useful material may include sentencing remarks, proof of completion, a structured chronology, rehabilitation evidence, treatment records, later permissions and evidence of established UK ties.

Personal references can help, but they should not replace the primary record or overstate what the writer knows. The objective is a candid, coherent application which permits the decision maker to apply the correct rule and, where discretion exists, to see why the complete current evidence supports the applicant.

Practical questions.