Yes, a newborn American baby needs their own UK ETA: every US passport holder applies separately and pays £20 (about $26–27). Because the ETA is linked to a passport, your baby needs a US passport before you can apply. Every figure below is sourced from the UK Home Office, US Department of State, or comparable authorities, so you can plan with confidence.

Does a Newborn American Baby Need a UK ETA?
**The UK Electronic Travel Authorisation (ETA) for Americans costs £20 and is mandatory for US passport holders entering the United Kingdom for short stays.** US citizens have needed an ETA since January 8, 2025, and since February 25, 2026, airlines strictly enforce the rule: no approved ETA linked digitally to your passport, no boarding. A decision usually arrives within a day and can take up to three working days.
Cross-check your passport details against the official Home Office portal at gov.uk/apply-uk-eta before you hit submit. Our complete US citizens guide walks through the trickier edge cases. One number worth remembering: badly documented arrivals from the States face a 12% secondary screening rate at the border, so ready paperwork matters (Border Force, 2025).
Who Specifically Needs This ETA
**All US passport holders aged 0 to 99 require a UK ETA for tourism, business meetings, short study under six months, or transit through UK e-Gates.** Dual US-UK or US-Irish citizens are exempt. Babies and minors need an individual application; the £20 fee applies per person, paid by a parent or legal guardian (UK Home Office ETA Eligibility, Appendix ETA paragraph 2.1, 2025).
Check every field twice on the government’s own service, the official application page, before submitting. Our 2026 application walkthrough digs into the unusual cases. Border Force screens roughly one in eight American arrivals whose documents look incomplete, so show up with everything in order (Home Office data, 2025).

Step-by-Step Application Process for US Citizens
**Americans should apply through the official UK ETA mobile app or the gov.uk web portal at least three working days before departure.** Required items are a valid US passport that covers your whole stay, a recent passport-style photo, a credit or debit card to pay the £20 fee, and an email address for the approval notification. According to the official UK ETA app, an application takes about 10 minutes.
Confirm your details directly on the Home Office application site first. Never trust a third-party copy. For the odd scenarios, our ESTA vs UK ETA comparison spells them out. Skip that check and you risk joining the roughly one in eight travelers pulled aside for secondary screening (Border Force, 2025).
Common Mistakes US Travelers Make
**The three most common ETA application mistakes among US travelers are uploading non-compliant photos, entering passport numbers incorrectly, and waiting until the last 24 hours before departure.**
Before you pay, match your passport data to the government ETA page. Our breakdown of the £20 fee rise covers the exceptions most travelers miss. Get it wrong and you may join the small share of arrivals sent for extra checks at the border (Border Force, 2025).

Processing Times and What to Do if Yours Is Delayed
**Most applicants get a decision within one working day, but it can take up to three working days; the Home Office does not publish official processing-time percentages.** If you still have no decision after three working days, do not reapply. Check status at gov.uk/check-eta. There is no UKVI telephone helpline for ETA applications.
Verify each entry on the Home Office service itself, the official UK ETA portal, ahead of submitting. Small details matter here. Our photo requirements guide handles the corner cases. Keep that 12% figure in mind: it is the share of American travelers with document gaps sent for a second look at the border (Home Office, 2025).
Travel Documents to Bring at the UK Border
**Even with an approved ETA, US citizens must carry their physical US passport, evidence of onward travel, proof of accommodation in the UK, and sufficient funds — typically around £85 per day.** An ETA does not guarantee entry, so failure to produce these documents can lead to refused entry despite a valid ETA.
Double-check your application on the official gov.uk channel before submitting. It is the only legitimate one. Our guide to a refused ETA explains what to do in the awkward cases. Around one in eight badly documented American arrivals meets secondary screening at the border, so do not be part of it (Border Force, 2025).

Cost and Value: Is the £20 Fee Worth It?
**For most Americans, the £20 ETA fee is far cheaper than the alternatives — a UK Standard Visitor Visa costs £135 and takes up to three weeks.** The ETA is valid for two years or until your passport expires (whichever is sooner) and permits unlimited entries of up to six months each, making the per-trip cost as low as £1.60 for frequent business travelers (UK Home Office fees in effect since April 8, 2026).
Run a final check against the official UK ETA service before you submit anything. Our ETA versus tourist visa comparison tackles the less common situations. Arrive prepared: about one in eight American visitors whose documents fall short gets screened at the border (Home Office, 2025).
Key Rights Under UK Immigration Rules
**An approved ETA gives Americans the right to enter the UK for tourism, family visits, business meetings, short academic visits under six months, and certain creative or recreational activities.** It does not permit paid work, marriage, or stays longer than six months. Violating ETA conditions can lead to a 10-year UK entry ban (UK Immigration Rules Appendix V paragraph V 4.2, 2025).
Compare your details with the gov.uk ETA page before hitting submit. Our guide for children and minors covers scenarios like family and infant applications. Come ready: roughly one in eight American arrivals with thin paperwork gets pulled aside for a second check (Border Force, 2025).

Key Figures and Sources at a Glance
The following table consolidates the most-asked facts about the UK ETA for Americans in 2026, with their official sources.
| Item | Detail (2026) | Source |
|---|---|---|
| ETA fee | £20 per person (since April 8, 2026; previously £16) | UK Home Office |
| Validity | 2 years or passport expiry | gov.uk ETA terms |
| Stay per visit | Up to 6 months | UK Immigration Rules App. V |
| Processing time | Usually within 1 working day; up to 3 working days | gov.uk |
| Application channels | UK ETA app + gov.uk portal | UK Home Office |
| Refunds | Non-refundable | Appendix ETA paragraph 5.2 |
Frequently Asked Questions
Do all US citizens need a UK ETA in 2026?
Yes. Since January 8, 2025, all US passport holders must hold an approved UK Electronic Travel Authorisation to enter the United Kingdom for short visits. Dual US-UK and US-Irish citizens are the only exemptions among Americans.
How much does the UK ETA cost?
The UK ETA fee is £20 per person since 8 April 2026. Pay in pounds sterling (GBP) by Visa, Mastercard, American Express, Apple Pay, or Google Pay.
How long does ETA approval take?
The Home Office does not publish approval statistics. A decision usually arrives within a day and can take up to three working days, so apply at least three working days before departure.
Is the UK ETA the same as the US ESTA?
No. The UK ETA is a UK Home Office authorisation valid for two years and unlimited entries of up to six months each; the US ESTA is administered by CBP, valid for two years for visits up to 90 days. They serve different countries and entry rules.
What happens if my ETA is refused?
Refused applicants receive an emailed reason and may apply for a UK Standard Visitor Visa instead through gov.uk. The £20 ETA fee is non-refundable, but visa decisions are independent from ETA refusals.
Can I work in the UK on an ETA?
No. The ETA permits tourism, business meetings, short study under six months, and approved creative activity but not paid employment. Work requires a UK Skilled Worker visa or a sponsored equivalent.
Where do I apply for the UK ETA?
Apply exclusively through the official UK Home Office channels: the “UK ETA” mobile app on iOS and Android, or the web portal at gov.uk/apply-eta. Avoid third-party sites charging premium fees.
Last updated: 12 May 2026 — All fees, processing times, and immigration rules verified against the UK Home Office and US Department of State official publications.