Not a government site. We provide independent visa support.
You may apply directly on official sites without service fees.
Most UK ETA applications are approved automatically within minutes. The large majority of people who apply will never see a refusal email. But refusals do happen, and if you're reading this either because you're worried about applying or because you've just been refused, the question you want answered is the same: what causes a refusal, and what can you do about it?
This guide covers the actual reasons UK ETAs get refused, what happens next when they do, and the specific steps that either prevent a refusal in the first place or give you a path forward after one.
Understanding why refusals happen starts with understanding what the ETA system is doing when you apply.
When you submit your application, the UK Home Office runs your details against a series of security and immigration databases. It checks for matches against:
If nothing matches and your answers to the application questions don't raise flags, the system approves you automatically. Most applicants get their decision in minutes because most applicants are clean against all of those checks.
If something does match, or if your answers to the questions indicate a possible issue, your application gets routed to a Home Office caseworker for manual review. That review can end in one of three ways: approval (the flag turned out to be a false match or a resolved issue), a request for more information, or a refusal.
That's the screening pipeline. Every refusal reason below is really a description of what kind of thing shows up in one of those checks.
This is the single biggest reason. The ETA application asks directly about convictions, and the databases the Home Office checks include serious international criminal records.
Not every conviction causes a refusal. The rough lines are:
Minor, old, or resolved matters are often fine, but the honest answer is that there's no bright line. The Home Office assesses the whole picture.
If you have any conviction history at all, answering the questions honestly is essential. Failing to disclose something that shows up in the database is worse than disclosing it.
If you've had problems with UK immigration before, those records are in the system.
Common triggers include:
Some of these are grounds for automatic refusal. Others are factors a caseworker weighs. An overstay from 15 years ago when you were young is treated very differently from a deportation last year.
The application asks specific questions: have you ever been convicted of a criminal offence, been refused entry to the UK, been refused a visa to any country, been involved in terrorism, extremism, or war crimes, and so on. Answering "no" when the truthful answer is "yes" is grounds for refusal on its own, independent of whatever the underlying issue was.
This is the most avoidable refusal reason on the list. The application is designed to surface information the Home Office wants to assess in context. If you disclose something, it gets reviewed. If you hide it and the database catches it, you're refused for deception, which is worse than whatever you were trying to hide.
The UK shares immigration data with several partner countries, most notably the US, Canada, Australia, and New Zealand. A US visa refusal, a Canadian eTA refusal, or an Australian visa refusal can show up when you apply for a UK ETA.
These don't automatically trigger a UK refusal. The Home Office assesses why the other country said no. But they can prompt a manual review, and if the underlying reason was something serious, the UK may reach the same conclusion.
Simple mistakes in the application can cause a refusal, especially when they create inconsistencies the system can't reconcile:
Some of these cause rejection (you resubmit and get through). Some cause refusal, particularly when the pattern of errors looks like an attempt to misrepresent identity.
Beyond criminal history, the application asks questions intended to screen for security risks, extremism, war crimes, and other serious concerns. Affirmative answers to these questions almost always trigger manual review, and depending on specifics, can lead to refusal.
This is a narrow category. Most applicants never engage with these questions. But for anyone who does have a flag in any of these areas, the ETA is not the right route.
A category of refusals that isn't really about the applicant at all. Some people aren't eligible for an ETA in the first place:
These tend to result in rejection at the application stage rather than refusal after review, but the effect is the same: no ETA, and you need to look at a different route (usually a visa).
If your ETA is refused, you receive an email with the decision. The email typically contains:
What the email usually doesn't contain is a detailed explanation of exactly what triggered the refusal. The Home Office doesn't disclose the specific database entry or assessment that led to the decision. You get a category, not a full file.
You don't get a refund of your £20 fee.
No, there's no formal right of appeal for a refused UK ETA. This is different from most visa refusals, which sometimes carry appeal rights or the right to administrative review.
That doesn't mean you have no options. What it means is that the options all involve applying again (either for an ETA or for a visa), not challenging the original decision.
The right next step depends entirely on why you were refused, even if the email only gave you a general category. Here's the practical decision tree.
If you know for certain that the stated reason doesn't apply to you, for example you were refused on grounds of "prior immigration history" but you've never been to the UK and never applied for anything UK-related, the Home Office may have matched you with someone else in the database.
In these cases, reapplying with carefully correct details can sometimes resolve the issue, because the second application may get routed differently or matched more accurately. But if the same false match keeps flagging, the ETA route may not work for you regardless, and a Standard Visitor Visa (which involves direct human assessment) becomes the better option.
If the refusal stemmed from something you can correct (a wrong passport number, an inconsistency with an earlier application, a photo issue), reapplying with accurate information is straightforward. Just be aware that reapplying with the same error will produce the same result.
If you have a prior UK refusal, an overstay in your history, a criminal conviction, or another genuine issue that triggered the refusal, reapplying for an ETA with the same information will produce the same outcome. The system has already decided.
Your options in this scenario are:
This is common, and it's frustrating. The email gave you a general category, but you genuinely don't know what in your background might have caused it.
A cautious first step is to carefully re-read the refusal email and look at your own history (any old conviction, any past visa applications anywhere in the world, any prior UK travel). If something comes to mind, that's probably your answer. If nothing does, a Standard Visitor Visa application is usually the safer path forward, because it forces the Home Office to actually explain their reasoning when they assess a visa.
If you're reading this before applying and just want to maximise your chances:
Most UK ETAs are approved. The refusals that happen cluster around a predictable set of reasons: criminal history, prior immigration issues, non-disclosure, errors in the application, and flags in shared international databases.
If you're refused, there's no appeal, but there are paths forward. For errors and edge cases, a careful reapplication often works. For refusals based on genuine history, a Standard Visitor Visa is usually the right next step because it gets your situation in front of a human caseworker instead of an automated check. For anything complex, professional immigration advice is worth the cost.
If you're applying for the first time, the single most important thing you can do is answer the questions truthfully. Almost every self-inflicted refusal comes down to someone trying to hide something the database was going to catch anyway.