Top 7 UK ETA Application Mistakes to Avoid (And How to Fix Them)

7 Common Mistakes to Avoid When Applying for the UK ETA

Applying for a UK Electronic Travel Authorisation (ETA) is now a required step for eligible travelers heading to the United Kingdom. While the application is straightforward, many people get delayed or rejected due to small but costly mistakes. In this guide, we’ll walk you through the top 7 UK ETA application mistakes, and how to make sure your ETA is approved quickly and smoothly.

✅ Mistake #1: Entering Incorrect Passport Information

One of the most common reasons for UK ETA rejections is incorrect passport details. Even a single typo — like a wrong digit in your passport number or a misspelled name — can cause your application to be denied.

🟢 Tip: Always double-check your passport number, expiry date, nationality, and full name before you submit.

✅ Mistake #2: Using an Ineligible or Expired Passport

Your passport must be a biometric passport from an eligible country and valid for the duration of your UK stay. If it's expired or not biometric, your UK ETA will be automatically rejected. Check your eligiblity here.

🟢 Tip: Use this official eligibility list before applying.

✅ Mistake #3: Uploading Poor-Quality or Incorrect Documents

Some applicants upload blurry passport scans or wrong document formats, which can delay or reject your application.

🟢 Tip: Make sure your document is:

• In PDF or JPG format

• Bright and clearly legible

• Uploaded in full (not cropped)

✅ Mistake #4: Applying Too Close to Travel Date

The UK ETA is usually processed in 1–3 business days, but last-minute applications can be risky, especially during peak travel seasons.

🟢 Tip: Apply at least one week in advance to ensure approval in time.

✅ Mistake #5: Entering Mismatched Travel Details

Your ETA details must match your actual travel itinerary — mismatches between your application and flight details could cause problems at immigration.

🟢 Tip: Keep your flight confirmation handy when filling out the form.

✅ Mistake #6: Using Fake or Unofficial Websites

Many travelers unknowingly apply through scammy websites that charge extra or never submit your application.

🟢 Tip: Always use a trusted UK ETA assistance service like ETAApplyUK.com to ensure safe and smooth application.

Mistake #7: Not Saving the UK ETA Confirmation

Your ETA is digitally linked to your passport, but you still need to save the confirmation email or screenshot — especially if systems are down.

🟢 Tip: Save your ETA confirmation on your phone and email inbox.

Final Thoughts:

The UK ETA process is simple — but only if done right. Avoid these common mistakes and ensure your UK trip goes smoothly.

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