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. The Immigration Rules Appendix ETA National List has covered United States nationals for travel on or after 8 January 2025, and the United States sits on the GOV.UK list of eligible nationalities, last updated on 9 April 2026.

GOV.UK puts it plainly: most visitors need an ETA or a visa, and travellers from the USA usually need an ETA. Since 25 February 2026 the rule bites at the gate, because airlines prevent 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.

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. What happens to the unused time on the old one is not something GOV.UK answers: it requires the new application and rules out refunds, but says nothing about the remaining validity.

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 states that as of September 2026, warns that other websites may charge more, and tells travellers to avoid sites imitating government services. It adds that there is no refund after applying and no faster decision from 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 web address that is not 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.

• 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. GOV.UK publishes no list of airports offering airside transit, so elsewhere assume the connection passes border control.

The warning

Home Office caseworker guidance 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, holders of a UK visa, and people with permission to live, work or study in the UK, including settled or pre-settled status and right of abode, or in Jersey, Guernsey or the Isle of Man.

Dual citizens are a separate case. Someone who also holds British or Irish citizenship cannot get an ETA at all, and instead proves citizenship at the border with a valid British passport, a certificate of entitlement, or a valid Irish passport. A US-British dual national whose British passport has lapsed is better off renewing it, since the ETA route is closed to them.

Americans living in Ireland have their own carve-out. The Home Office says legal residents of Ireland from nationalities that do not usually need a visa to visit the UK, giving US nationals as its example, do not need an ETA when travelling within the Common Travel Area if they can show proof of legal residency.

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. ETA enquiries run through webchat; UKVI cannot help 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: GOV.UK advises that people with a criminal record, or previously refused entry to the UK, may want to apply for a Standard Visitor visa instead. We found no published ETA refusal rates, so any figure quoted for the odds is guesswork.

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 September 2026:

• 8 January 2025 — United States nationals came under the ETA requirement through Appendix ETA National List
• 25 February 2026 — airlines began refusing boarding for the UK without an ETA, an eVisa or other valid documentation
• 8 April 2026 — the official Home Office fee table raised the ETA fee from 16 to 20 pounds, a change of 4 pounds
• 9 April 2026 — the GOV.UK change log records that an ETA now also covers Jersey, Guernsey and the Isle of Man

Looking ahead, the Home Office fee table for 8 October 2026 keeps the ETA at 20 pounds and shows a fee change of zero, so no further increase is scheduled on that date. The open item is the airside transit exemption, which caseworker guidance still calls 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 stated in September 2026. The fee rose from 16 pounds on 8 April 2026, 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 means an ETA.

Do babies and children need their own ETA?

Yes. GOV.UK states that each person travelling needs an ETA, including babies and children, and that one person can apply on behalf of others.

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

A new ETA is needed, with no refund on the original. GOV.UK does not say what happens to any time left on the old one, so there is no official answer there.

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.

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.