UK ETA for Americans: Rules, Fee and How to Apply

• £20

  The current official UK ETA application fee as of 12 August 2026

• 25 Feb 2026

  When the UK began enforcing digital permission to travel

• 3 days

  The working days the UK says to allow for an ETA decision

• 2 years

  ETA validity, or until the linked passport expires, whichever comes first

The UK ETA is the kind of requirement that quietly crept from “it might happen” to “you need it to fly.” Since 25 February 2026, the United Kingdom enforces digital permission to travel, which for an eligible U.S. citizen means an Electronic Travel Authorisation before you fly to Britain. The change is real and enforced, and it is worth getting right.

Every figure on this page is current to 12 August 2026 and traces to the official gov.uk pages. This guide is deliberately careful with two numbers in particular — the £20 fee and the one-to-three-day decision window — because both are the kind of figure that drifts into stale articles and gets travelers into trouble. Here are the facts as they stand.

Americans need a UK ETA now

The requirement applies to travelers who would otherwise travel without a visa for short visits, and U.S. citizens fall into that group. Rather than relying on the visa-free goodwill alone, the UK now requires that an approved ETA precede travel. It is an extra document step, but the application is digital and generally fast.

Because an ETA is required before travel, an American without one can be stopped before reaching the UK. The enforcement date below matters because it marks when this became a hard, current condition of travel, not a future announcement. Confirm the current requirement on gov.uk for your travel dates rather than relying on older advice.

Enforcement began 25 February 2026

The United Kingdom began enforcing a digital permission to travel on 25 February 2026, according to the official UK government announcement. That date is the line between the previous regime — where many travelers arrived without prior authorization — and the current one, where an eligible traveler must hold an approved ETA before flying.

The enforcement point is the reason a UK ETA is now a hard pre-departure step for U.S. travelers rather than a suggestion. Since that date, planning a quick trip to Britain without checking the ETA requirement is a genuine gap, not an edge case. The official pages spell out who needs one and who is exempt.

Because the requirement is enforced, it is the kind of rule to check close to travel and not assume away. As of 12 August 2026 the U.S. traveler requirement stands, and the reliable move is to confirm on gov.uk before you book, so the ETA is part of your plan rather than a last-minute scramble.

The current fee is £20

The current official UK ETA application fee is £20, per the gov.uk application page as of 12 August 2026. If you have read £16 anywhere, that figure is stale. Treat £20 as the number that is current today, and always check the official application page for the live fee before you pay, because costs can change.

The fee applies per traveler, because each person needs their own ETA, and it is paid as part of the application. That means a family trip pays £20 for every traveler. The per-traveler structure is one reason to plan the applications together and to compute the real cost of the trip with the ETA fees included.

Decisions usually come in a day, allow three working days

A UK ETA is normally decided in about one day, but the official guidance is that you should allow up to three working days for a decision. The safe reading is to plan for the longer end: apply well before departure so that even a slow decision arrives in time, rather than betting on the fast case and losing the trip if it runs long.

The difference between “usually a day” and “allow three working days” is exactly the kind of nuance that gets lost. If an article tells you an ETA is instant and you apply the night before a Thursday flight, you are gambling. The working-day window plus processing could easily spill past your departure. Grant yourself the buffer.

There is no reliable way to pay to make it faster, and the official fee is the fee regardless of speed. So the practical rule is: apply early, allow up to three working days, and do not book a nonrefundable, time-sensitive flight that depends on an ETA you have not received yet.

Two years, or until the passport expires

A UK ETA is valid for two years or until the passport it is linked to expires, whichever comes first. Taking the two-year window or a passport expiry, the earlier of the two ends the ETA. This linkage to the passport is the detail that most often surprises travelers.

The consequence is practical: if you renew or replace the passport you used for the ETA, you must apply again, because the ETA is tied to the specific document. Two years of remaining ETAs are not automatically carried onto a new passport. If you expect a passport renewal around a UK trip, factor that into whether to apply before or after you renew.

It also means an ETA granted near a passport’s expiry is worth less than its two-year label suggests, because the earlier expiry wins. For the traveler with a short-validity passport, the ETA and the passport expire around the same time, which is why the validity edge interacts with the passport rule in our passport six-month rule guide.

Every traveler needs one, including children

Every traveler needs a UK ETA, including a child. There is no family or group ETA that covers multiple people, so each person traveling, however young, requires their own separate application tied to their own passport. A child’s ETA has its own fee and its own validity.

The practical burden is that a family of four means four applications and four £20 fees. That is easy to underestimate when planning a family trip, so build the per-traveler count into the budget and the timeline. Applying for each child well before departure avoids the risk that a single missing ETA holds up the whole family at check-in.

Because the requirement applies per person, confirm the current rules for minors on the official page before you rely on any memory of a child exemption. The current position, as this guide states it, is that each traveler including a child needs an ETA, and gov.uk is where you verify the latest version of that rule.

An ETA is permission to travel, not entry

A critical distinction: an ETA is permission to travel, not entry into the UK. An approved ETA lets you travel to the UK and presents at the border, but UK Border Force makes the final decision and can still refuse admission. The ETA does not grant the right to stay longer or override the ordinary immigration requirements for your nationality.

This distinction keeps expectations honest. Holding an ETA does not mean you are guaranteed in, and it is not a visa, so it does not allow stays or activities that require a visa. The ETA sits alongside the ordinary entry rules as a necessary pre-travel document, not as a substitute for them.

For a U.S. traveler on a short visit, the ETA plus the ordinary requirements is the complete picture. If you are going for a purpose that falls outside visa-free short visits, the ETA is not the right tool and a visa may be. Confirm the purpose of your trip against the official rules before assuming the ETA alone is enough.

Apply only at gov.uk

The only application channel this guide recommends is the official gov.uk site. The application asks for the traveler’s passport details and personal information and collects the £20 fee, and the decision is returned digitally. Because the fee and processing are official, do the application yourself through gov.uk rather than delegating it to a third party that can overcharge.

The UK has published caseworker guidance and a public-facing overview, and both are cited in the sources for this page. They reinforce the same facts: the fee, the decision window, the per-traveler requirement and the validity tied to the passport. Those are the numbers to carry into planning, with gov.uk as the check before you pay.

How a UK ETA compares to other entry documents

The UK ETA is one of several entry documents a U.S. traveler might need, and they are easy to conflate. Unlike a visa, a UK ETA requires no interview and is obtained digitally before travel, but it does not grant the rights a visa does. It is similar in spirit to other pre-travel authorizations, but each system has its own fee, validity and rules.

For a European trip specifically, the UK ETA is separate from Europe’s EES and ETIAS. The UK is not part of the Schengen-boundary system, so its ETA is a distinct requirement even when an itinerary combines Britain and the continent. Our Europe EES guide and ETIAS guide cover those separately, because they run on different timetables and rules.

Keeping the documents apart prevents a costly mix-up. If your trip touches the UK, you need the UK ETA. If it touches the participating European countries, you may later need ETIAS once it launches. They are not interchangeable, and neither is covered by the other. Confirm each document against the country you actually enter.

A before-you-fly checklist

1. Confirm you need one. U.S. citizens traveling to the UK need a UK ETA under the rules enforced since 25 February 2026.
2. Budget £20 per traveler. The current fee is £20, and every traveler including a child pays it.
3. Apply early. Allow up to three working days for the decision, even though it is usually about a day.
4. Check validity. An ETA lasts two years or until the linked passport expires, whichever comes first.
5. Use gov.uk only. Apply on the official site and decline third-party extras.
6. Remember it is permission to travel, not entry. Border control still makes the final decision on arrival.

The UK ETA is now a real, enforced step for U.S. travelers: since 25 February 2026, an eligible American needs approval before flying to the UK. The current fee is £20, decisions usually come in about a day but you should allow up to three working days, and an ETA is valid for two years or until the linked passport expires. Every traveler including children needs one, apply only at gov.uk, and remember an ETA is permission to travel, not entry. Recheck the official page close to departure, because these figures can change.