UK Immigration Suitability Requirements
Almost every UK immigration application must satisfy the suitability requirements — the general grounds on which an application can be refused because of a person's conduct or history, regardless of whether they otherwise qualify. Meeting a route's eligibility rules does not override suitability.
On this page
Quick answer. Suitability is about conduct and history — criminality, deception, immigration breaches, unpaid debts to public bodies, and similar. Some grounds mean an application must be refused; others give the Home Office discretion. If any could apply to you, get advice before applying.
In brief
- Almost every UK immigration application must satisfy a suitability requirement.
- It applies across routes and covers grounds such as conduct, criminality and false information.
- Some grounds are mandatory, others discretionary.
- The guide explains where it applies and common mistakes.
What the suitability requirement is
The suitability requirements are the general grounds for refusal that sit alongside a route's eligibility rules. You can meet every eligibility requirement and still be refused on suitability. They apply to entry clearance, permission to stay and settlement, and are assessed on the facts of each case.
Where it applies
| Application stage | Suitability assessed? |
|---|---|
| Entry clearance (applying from overseas) | Yes |
| Permission to stay / extension | Yes |
| Settlement (ILR) | Yes |
| Citizenship (good character) | Separate but related test |
The main grounds
- Criminality — custodial sentences, persistent offending and certain convictions.
- Deception — false representations or documents in this or a previous application.
- Immigration breaches — overstaying, breach of conditions, illegal working.
- Debts — unpaid NHS charges above the threshold, or unpaid Home Office fees.
- Conduct — where presence is not conducive to the public good.
The precise thresholds and definitions are set out in the rules and change from time to time — check the current position on GOV.UK for your situation.
Mandatory vs discretionary
Some grounds are mandatory — the application must be refused if they apply. Others are discretionary — the Home Office weighs the circumstances. Where a discretionary ground is in play, how the case is presented can make a real difference, so it's worth taking advice rather than applying and hoping.
Common mistakes
- Assuming eligibility is enough — suitability is a separate hurdle.
- Not disclosing a past issue — non-disclosure can itself be treated as deception.
- Overlooking an old immigration breach — history can still be relevant.
- Ignoring unpaid NHS or Home Office debts — these are specific grounds.
FAQs
Can a criminal record stop my application? +
It can. Depending on the sentence and circumstances, criminality can be a mandatory or discretionary ground. Take advice before applying.
Do I have to disclose a previous refusal or breach? +
Yes — you should answer application questions fully and honestly. Non-disclosure can be treated as deception, which is itself a suitability ground.
Does suitability apply to settlement? +
Yes. Meeting the eligibility requirements for ILR does not override the separate suitability requirements.
Related guidance
Disclaimer. This page provides general information about UK immigration law and does not constitute legal advice on any individual application. Requirements depend on your circumstances and may change. Seek professional advice before applying.
Worried a suitability issue may affect you?
A criminal record, a past refusal or an old immigration breach doesn't always end an application — but it needs careful handling. We can assess your position first.