Travelling to the UK in 2026? ETA Becomes Mandatory From February 25

If you’re planning a trip to the United Kingdom in 2026, there’s one date you need to remember: February 25, 2026.

From that day, the UK will strictly enforce its Electronic Travel Authorisation (ETA) rule. No exceptions. No last-minute flexibility at the airport. If you need an ETA and do not have one, you simply will not be allowed to travel.

Here’s what this really means for you.

What Is the UK ETA?

The UK’s Electronic Travel Authorisation (ETA) is a digital travel approval. It applies to travellers from visa-exempt countries who do not need a visa for short visits.

Think of it as a pre-travel security check. You apply online before flying. Once approved, it is linked to your passport.

The system is part of the UK’s move to fully digitalise its borders. It allows authorities to screen travellers before they arrive and keep a better track of who is entering the country.

From February 25, 2026: No ETA, No Travel

Starting February 25, 2026, enforcement becomes strict. If your nationality requires an ETA to enter the United Kingdom, you must have one before boarding your flight. Airlines will check. Border officers will not make exceptions.

Even if you are only transiting through the UK, you may need one, depending on your route and nationality. The key point is simple: do not leave this until the last minute.

Dual British and Irish Citizens: Important Passport Rule

This update also affects dual nationals. If you hold British or Irish citizenship along with another nationality, you will no longer be able to travel to the UK using only your non-British or non-Irish passport.

From February 25, 2026, you must prove that you are exempt from the ETA system. That means showing:

• A valid British passport
• A Certificate of Entitlement to the Right of Abode
• Or proof of Irish citizenship

If your British or Irish passport has expired, renew it before travelling. Otherwise, you may face problems boarding your flight.

This is especially important for travellers who have been casually using their second passport for convenience. That will not work anymore.

Why the UK Is Doing This

The ETA system is part of the government’s broader digital border plan. The idea is to:

• Collect more accurate information about who is travelling to the UK
• Strengthen border security
• Screen travellers before arrival

Many countries already use similar systems. The United States has ESTA. Canada has eTA. The UK is now fully aligning with that model.

How Long Does an ETA Take?

In most cases, an ETA decision comes within minutes. But do not rely on that.

Some applications can take up to three days. There is no formal appeal process if your ETA is refused. You would need to apply again or apply for a visa instead.

For business travellers, employees, and employers, this means extra planning is required. It is another step in the travel process, and it comes with a fee.

Practical Advice for Travellers

If you are travelling to the United Kingdom after February 25, 2026:

• Check if your nationality requires an ETA
• Apply well in advance of your trip
• Make sure your passport is valid
• Dual British and Irish citizens should travel with proof of citizenship
• Keep track of your ETA’s validity

Do not assume previous travel history will protect you. The enforcement will be automatic and strict.

The Bottom Line

From February 25, 2026, the UK’s ETA requirement will become fully enforced.

For most travellers, it is a quick online step. For dual nationals and last-minute planners, it could become a serious problem if ignored.

If London, Manchester, or a quick Heathrow transit is on your 2026 calendar, add one more item to your checklist: make sure your ETA, or your British or Irish passport, is in order before you travel.