Applying for a UK Electronic Travel Authorisation (ETA) is relatively straightforward, but mistakes in your application can cause delays or lead to rejection. Even something as simple as entering the wrong passport number can create problems with your travel plans.
If you're preparing your application, it's important to check your information carefully before submitting it. If you've already applied and something has gone wrong, your next steps depend on whether your ETA is delayed, rejected, or refused.
This VisaSyst guide explains the most common UK ETA application mistakes, how to avoid them, and what you can do if your application is unsuccessful.
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Table of Contents
▼Common UK ETA Application Mistakes to Avoid
Most UK ETA applications require basic information about your identity, passport, and personal circumstances. However, small errors can make it difficult to verify your information correctly.
Based on VisaSyst's experience reviewing travel document applications, the most important areas of your application to check before submitting it are:
- Passport details
- Personal information
- Correctly completed form fields
Incorrect passport details and passport numbers
Your UK ETA is electronically linked to the passport you use when applying. This means your passport information must be accurate and match the document you'll use to travel.
Common mistakes include:
- Entering an incorrect passport number
- Confusing the letter O with the number 0
- Confusing the letter I with the number 1
- Entering an incorrect passport expiration date
- Using details from an old or expired passport
These mistakes can be difficult to notice, particularly when passport numbers contain similar-looking letters and numbers.
VisaSyst data insight
According to internal VisaSyst data, approximately 2% of applications contain errors in passport numbers, such as confusing the letter O with the number 0. To help prevent these mistakes, VisaSyst provides guidance and automatic checks throughout the application process, allowing you to correct errors before submitting your information.
Source: VisaSyst Product team, internal application data.
Tips to avoid UK ETA mistakes
- Before submitting your application, compare your passport number and expiration date directly against your physical passport.
- Check that your passport will remain valid for your planned trip.
Mistakes in names, phone numbers, and personal information
Your personal information helps UK authorities establish your identity and assess your application. Common errors include misspelled names, incorrect dates of birth, and mistakes when entering contact details.
For example, if your passport includes two surnames, check that you've entered your name correctly and consistently with the instructions on your application form.
Phone numbers can also cause confusion, particularly when forms require an international dialing code.
Tips to avoid UK ETA mistakes
When entering your contact details:
- Check that you've selected or entered the correct country calling code
- Make sure your phone number contains the correct digits
- Use an email address you can access
- Check your name and date of birth against your passport
One incorrect contact detail does not automatically mean your ETA will be refused. However, mistakes can complicate communications or make it harder to complete the application correctly.
Incorrect information and photo problems
The UK ETA application also requires a passport image, a facial photograph, and answers to questions about your circumstances.
According to the UK government's application guidance, your facial photograph must meet the official digital photo requirements. Otherwise, your application may be delayed or rejected.
Other problems to watch for include:
- Uploading a blurry, poorly lit, or edited photograph, or one with shadows, an unsuitable background, or facial features obscured by hair or glasses
- Providing incomplete or inconsistent information
- Omitting relevant information requested by the application
Tips to avoid UK ETA mistakes
Answer every question accurately and truthfully, particularly those relating to previous immigration problems or criminal convictions.
Providing false information or failing to disclose relevant facts can have more serious consequences than an ordinary typo.
How to Check Your UK ETA Application Before Submitting
The easiest time to correct a UK ETA application mistake is before you submit your information. Take a few minutes to check the following details against your documents.
Pay particular attention to dates, especially your date of birth and passport expiration date. Some countries use day/month/year (DD/MM/YYYY), while others use month/day/year (MM/DD/YYYY).
For example, 05/08/2026 could mean August 5 or May 8, depending on the format. Check which format the application requires and compare each date with your passport before submitting.
How VisaSyst helps identify application errors
VisaSyst combines automated checks with specialist reviews to identify potential mistakes during application preparation.
Our system guides you through each field and checks for missing or inconsistent information. If something is incorrect or incomplete, you'll be prompted to review and correct it.
Our review team also picks up discrepancies that require additional attention, such as passport details that do not match the passport image you upload.
This process helps identify avoidable mistakes before your application reaches the relevant authorities.
Need help preparing your UK ETA?
VisaSyst provides a guided application process with data checks and additional review to help you identify potential errors before submission.
Start Your UK ETA Application
What Happens If You Submit Incorrect UK ETA Information?
If you realize you've entered incorrect information after submitting your UK ETA application, you cannot simply edit the submitted form if you have applied through the government website.
According to the official UK ETA application guidance, if you need to change information in your application, you'll need to apply again. This is particularly important when the mistake concerns your passport information.
Your ETA is linked to the specific passport used in your application. If the passport information is incorrect, even an approved ETA will not be valid for travel with your actual passport.
If you applied through VisaSyst, contact our Customer Support team to ask about the status of your application and the options available.
UK ETA Rejected, Refused, or Delayed: What's the Difference?
Although these terms are sometimes used interchangeably, they describe different situations. Understanding the difference will help you determine what to do next.
💡 VisaSyst refund policy: If your application is denied by the government, you’ll be eligible for a refund under our Refund Policy. Get in touch with our team if your application was rejected.
What happens if your UK ETA is delayed?
According to the UK government, most ETA decisions arrive within one day, although processing can take up to three working days. Some applications require additional checks before a decision can be made.
If you applied through VisaSyst, our team monitors your application's progress and can help you check its status. However, only the UK Home Office can make the final decision, and VisaSyst cannot guarantee or accelerate government processing times.
If you haven't received a decision after three working days, check your email, including your spam folder. You can then contact VisaSyst's Customer Support team if you have applied through our platform. Get assistance or UK Visas and Immigration (UKVI) if you applied directly.
Remember that you must receive confirmation that your ETA has been approved before traveling to the UK.
VisaSyst data insight
According to our internal data, 99.86% of UK ETA applications handled through VisaSyst received a decision within two days, while just 0.14% took longer.
This reflects the experience of travelers who applied through our service, rather than all UK ETA applicants. VisaSyst helps you prepare your application, checks for potential errors, and monitors its progress, although final decisions and processing times depend on the UK Home Office.
Why Would a UK ETA Application Be Refused?
A UK ETA refusal is different from an application being rejected because it does not meet the validity requirements.
Under the UK Immigration Rules for Electronic Travel Authorisations, reasons for refusal include:
- Criminal convictions: You have received a prison sentence or suspended sentence of 12 months or more, or you have another criminal conviction from the past 12 months. Convictions in the UK and overseas both count.
- Previous immigration violations: You have overstayed your permission to remain in the UK, broken immigration conditions, entered illegally, or used deception in an immigration application. Certain exceptions apply.
- False or missing information: You have provided false information or documents, or failed to disclose relevant facts in your current or a previous ETA application.
- Exclusion or deportation orders: The UK government has ordered your exclusion or deportation, or has made a decision to deport you.
- Previous UK visitor visa refusals: You have previously been refused a UK visitor visa or permission to enter or stay as a visitor, unless an exception applies.
Other grounds include certain security or public-interest concerns, unpaid litigation costs owed to the Home Office, and previous ETA cancellations.
Important: A simple typing mistake does not automatically mean your ETA will be refused, although incorrect information can still cause problems. If your application is refused, review the reason carefully. Correcting a passport number or personal detail may not resolve the underlying issue.
What to Do If Your UK ETA Is Rejected or Refused
If your UK ETA application is unsuccessful, check your decision email to understand why and determine your next steps.
Can you apply for a UK ETA again?
If your application was rejected, you can apply again. Before resubmitting, review the reason for rejection and check your passport details, personal information, and photographs.
However, if your ETA was refused, you cannot appeal the decision. You'll need to apply for a UK visa if you still wish to travel.
When do you need a UK visa instead?
You may need a visa if your ETA was refused or you're not eligible for an ETA because of your nationality or travel purpose.
Use the government's UK visa checker to find out which visa you need. If you're traveling soon, read our guide on how to get an urgent visa.
Remember that private providers like VisaSyst cannot guarantee faster government processing or visa approval. Only the UK Home Office can make decisions on your permission to travel within their standard processing time.
How VisaSyst Helps You Avoid UK ETA Application Errors
At VisaSyst, we know that preparing travel documents can become stressful when you're unsure whether you've entered everything correctly.
Our application process is designed to help you identify potential problems early, before your information is submitted to the relevant government authorities.
When you apply through our platform, you benefit from:
- Guided application forms: Clear instructions and helpful information for completing each field
- Instant validation checks: Automated checks designed to identify missing or inconsistent information
- Application reviews: Additional verification of details that require attention
- Customer support: Assistance with application questions and potential errors
- Status monitoring: Support throughout the application process
For example, if our team identifies a passport number that appears inconsistent with your uploaded document, we can investigate the discrepancy and help address it before submission. This helps you get your ETA request right the first time around.
Our team also takes your travel date and selected service into account when prioritizing customer support requests.
How we work:
VisaSyst is an independent travel document assistance service, not a government authority. We can help you prepare and submit your application, but only the UK Home Office can grant, reject, or refuse an ETA.
Our service includes an additional fee. You can also apply directly through the official UK government ETA service.
Frequently Asked Questions About UK ETA Applications
Can I correct a mistake on my UK ETA application after submitting it?
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If you applied with VisaSyst and notice a mistake in your application, get in touch with us and we’ll explain the next steps. If you applied directly through the government, you’ll need to complete a new application with the corrected information.
What happens if I enter the wrong passport number on my UK ETA?
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An incorrect passport number can create problems because your ETA is linked to the passport used in your application. If the details are wrong, you should check the official guidance and submit a new application if necessary.
How long does a UK ETA application take to process?
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The UK government states that most ETA decisions arrive within one day, but processing may take up to three working days. If you haven't received a response after three working days, check your spam folder and contact the platform you used to apply.
Can I reapply if my UK ETA is rejected?
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Yes. If your ETA application is rejected, you can review the reason and submit a new application. However, if your ETA is formally refused, there is no ETA appeal process, and you will need to apply for a visa if you still want to travel.
Does VisaSyst guarantee UK ETA approval?
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No. VisaSyst helps you prepare and review your application to identify potential mistakes before submission. However, the UK Home Office is responsible for deciding whether to grant an ETA, and no private application service can guarantee approval.
