UK ETA for US Citizens 2026: Cost, How to Apply and When You Do Not Need One

Do US Citizens Need a UK ETA? (2026 Quick Answer)

Yes. A US passport holder going to the UK for a short visit needs an Electronic Travel Authorisation before boarding. Appendix ETA National List of the Immigration Rules has covered United States nationals for travel on or after 8 January 2025, and GOV.UK still names the United States among the eligible nationalities.

Since 25 February 2026 the rule bites at the gate, because airlines stop passengers boarding for the UK without an ETA, an eVisa or other valid documentation. In its February 2026 announcement the Home Office listed US nationals among the 85 nationalities legally required to hold one. Americans are also the biggest single nationality in the scheme: Home Office statistics published in August 2026 count 4.5 million ETAs granted to US nationals in the year to June 2026.

What the ETA Is and How Long It Lasts

The Home Office calls an ETA a digital permission to travel: not a visa, and not permission to enter on its own. Border officers still decide at the desk, which is why GOV.UK says an ETA does not guarantee entry.

It covers the UK, Jersey, Guernsey and the Isle of Man for up to 6 months at a time. GOV.UK is precise on validity: 2 years, or until the holder's passport expires, whichever is sooner, with unlimited trips in that window. The cap is on the length of each visit, not the number.

The authorisation is tied to one passport. If that passport has expired or changed, a new ETA is needed and there is no refund on the original. The Immigration Rules explain why the old one is no use: an ETA gives permission to travel only when the holder uses the passport named in the application. Any time left on it does not move to the new passport.

The limits are written in as well. GOV.UK says an ETA does not allow a stay beyond 6 months, paid or unpaid work for a UK company or as a self-employed person outside narrow exceptions, claiming public funds, living in the UK through frequent visits, or marrying in the UK.

Cost and the Only Official Places to Apply

An ETA costs 20 pounds. GOV.UK still gives that price in October 2026, and the Home Office fee table that took effect on 8 October 2026 leaves it unchanged. GOV.UK warns that other websites may charge more and tells travellers to avoid sites imitating government services. There is no refund after applying and no faster decision through another website or app. Fees get revised, so we recommend confirming the price on GOV.UK before paying.

There are exactly two official channels. The Immigration Rules require an application through the GOV.UK process using either the UK ETA mobile app or the online form titled Apply for an ETA to come to the UK. Everything else is a reseller.

The gap is expensive. According to travellers' reports on Reddit in August 2026, an American couple nearly paid around 135 US dollars each on the first commercial site in their search results before spotting it was not the official route. A price well above 20 pounds, a promise of a faster decision, or a site outside GOV.UK all point to a reseller.

How to Apply Step by Step

The application is short. GOV.UK says applicants need the passport they will travel with, an email address, a credit card, debit card, Apple Pay or Google Pay, and photos of the applicant's face that follow the GOV.UK digital photo rules. A photo that fails those rules may delay or cause rejection. One person can apply for others, but the app works only when that traveller is present. Otherwise the online form is the route.

• Open the UK ETA app or the GOV.UK application form
• Scan the passport or enter its details
• Take or upload the face photo to the digital photo rules
• Complete the questions and pay the 20 pound fee
• Wait for the confirmation email carrying the 16 digit ETA reference number

One detail matters for American passports. GOV.UK guidance on the UK ETA app says that if scanning the front of a United States passport does not work, place the phone on the inside of the back cover.

On timing, GOV.UK says a decision usually arrives by email within a day but can take up to 3 working days. The Home Office factsheet notes that most applicants currently get an automatic decision in minutes through the app, which is what typically happens rather than a service standard. It still recommends applying at least three working days ahead of travel, and travellers are told to wait for the confirmation email before setting off.

Transit and Layovers - When an ETA Is Required

This is where American travellers get caught, and the honest answer has three layers.

The rule

GOV.UK says an ETA is needed when passing through border control at a UK airport before continuing onward travel: landside transit. Transiting without passing border control, known as airside, is listed as a case where no ETA is needed. Travellers unsure of their route can check with the airline.

The practice

Airside transit is not offered everywhere. The Home Office factsheet of April 2026 names two airports only: passengers transiting through Heathrow and Manchester without going through UK passport control do not currently need an ETA. Home Office guidance for airlines, updated on 22 October 2026, treats airside transit as staying in the same airport, so a change of airport means border control. Its airside rules for visa nationals add an onward flight before 23:59 the same day, so check an overnight connection with the airline.

The warning

Home Office caseworker guidance of August 2026 states that the airside exemption is temporary and will be kept under review, while landside transit continues to require an ETA. No end date has been published, so an itinerary booked months ahead on the strength of it carries the risk.

The question that comes up most often: according to travellers' reports on Reddit in September 2026, Americans with long Heathrow layovers plan to head into central London for the day. Leaving the airport means passing border control, so an ETA is required. A nine hour stop does not change the rule.

An ETA also removes the need for a UK transit visa or a Standard Visitor visa, according to GOV.UK.

Mixed-nationality parties are checked passport by passport. Take a US citizen travelling with a spouse on a Moroccan passport: Morocco is on the Immigration Rules visa national list, so that passport holder needs entry clearance in advance and cannot use an ETA, whatever their US residence.

Who Does Not Need an ETA

GOV.UK lists the exemptions: British and Irish citizens, UK visa holders, and people with permission to live, work or study in the UK, Jersey, Guernsey or the Isle of Man, including settled or pre-settled status and right of abode.

Dual citizens are a separate case. Someone who also holds British or Irish citizenship cannot get an ETA at all, and proves citizenship with a valid British passport, a certificate of entitlement, or a valid Irish passport. Since 26 February 2026 new certificates are issued digitally and no longer expire with the passport. With a lapsed British passport, GOV.UK says an airline may accept one issued in 1989 or later plus a valid US passport with matching details. That is the carrier's call, so renewing is safer.

Americans living in Ireland have their own carve-out. GOV.UK says Irish residents entering from Ireland, Guernsey, Jersey or the Isle of Man do not need an ETA. From age 16 they must bring an original, valid Irish government document such as an Irish Residence Permit.

If Your ETA Is Refused or Delayed

Delays first. If no decision has arrived after 3 working days, GOV.UK advises checking the spam or junk folder before contacting UK Visas and Immigration, and notes that people who applied together may get decisions at different times. UKVI answers ETA questions by webchat, not by phone.

A negative outcome comes in two shapes. According to the Home Office, a rejected applicant is told the reason and can apply again, while a refused applicant cannot appeal and needs a visa instead. Caseworker guidance confirms there is no right to administrative review or appeal, and that both decisions are always taken by a human.

Some travellers are better served by the visa route from the outset. The Immigration Rules bar an ETA, with limited exceptions, for anyone previously refused as a visitor, and since 3 August 2026 a suspended sentence of 12 months or more counts as a criminality ground too. GOV.UK suggests a Standard Visitor visa for anyone with a criminal record or a past refusal of entry. The Home Office quotes no refusal rate for Americans, so treat third-party percentages with caution.

That is where Visarun helps to resolve things. When a route turns out to need a visa rather than an ETA, our team checks the itinerary and prepares the paperwork. The decision itself belongs to the UK authorities, and no agency can promise an outcome.

Recent Changes (2025-2026)

The dated changes for American travellers, as of October 2026:

• 8 January 2025: US nationals came under the ETA requirement through Appendix ETA National List
• 25 February 2026: airlines began refusing boarding without an ETA, an eVisa or other valid documentation
• 8 April 2026: the Home Office fee table raised the ETA from 16 to 20 pounds
• 9 April 2026: an ETA began to cover Jersey, Guernsey and the Isle of Man as well
• 3 August 2026: a suspended sentence of 12 months or more became a ground for refusing an ETA
• 22 September 2026: carriers can face penalties for bringing in a passenger who needs an ETA but has none
• 8 October 2026: the new fee table kept the ETA at 20 pounds

The open item is the airside transit exemption, still called temporary and under review.

FAQ

How much does a UK ETA cost for US citizens in 2026?

20 pounds through the UK ETA app or the GOV.UK form, as of October 2026. The fee rose from 16 pounds on 8 April 2026, the 8 October 2026 fee table kept it there, and applications are not refunded.

How long does an ETA application take?

GOV.UK says a decision usually arrives by email within a day but can take up to 3 working days. The Home Office recommends applying at least three working days before travel.

Do I need an ETA for a layover at Heathrow?

Only if the connection passes border control. Heathrow and Manchester passengers staying airside do not currently need one, per the Home Office factsheet of April 2026, and that exemption is temporary. Leaving the airport or changing airports means an ETA. Check overnight connections with the airline.

Do babies and children need their own ETA?

Yes. GOV.UK states that each person travelling needs an ETA, including babies and children. A parent can apply for a child in the app if the child is present, or online.

What happens to my ETA if I get a new passport?

A new ETA is needed, with no refund on the original. The Immigration Rules link an ETA to the passport used to apply, so the old one does not carry over.

Can I appeal a refused ETA?

No. Caseworker guidance states there is no administrative review or appeal. A rejected application is different: the reason is given and the applicant can reapply. A refused applicant applies for a visa.

Do dual US and British citizens need an ETA?

No, and they cannot get one. They travel on a valid British passport, another passport carrying a certificate of entitlement, or a valid Irish passport. An airline may accept an expired British passport issued in 1989 or later with a valid, matching US passport, at its own discretion.

Does an ETA guarantee entry to the UK?

No. It is permission to travel, not permission to enter, which is granted on arrival. The requirement covers all routes and modes of entry, including juxtaposed controls and the Common Travel Area.

How do I check whether I already have a valid ETA?

GOV.UK offers an online checker showing whether an ETA exists and when it expires.