If you renewed your US passport in 2026 and already had a UK ETA tied to the old book number, you must re-apply. Indeed, the ETA US renewed rule is automatic—an ETA is bound to a specific passport number, and the UK Home Office system rejects boarding when the numbers no longer match. This guide walks through the exact re-apply steps, the refund situation, and the timing for Americans flying to London in May or June 2026.
Why a new passport breaks your existing ETA
The UK ETA scheme uses passport-number lookup at boarding, not facial biometric matching at the boarding gate. Specifically, when a US citizen renews their passport (typically every 10 years), the replacement book carries a different document number—commonly starting “5” or “C” rather than “4” or “9” depending on the issuing year. Therefore, the previously-approved ETA, valid for two years, becomes unusable.
The ETA Terms are blunt about it: “If your passport changes, you must apply for a new ETA before travel.” As a result, US passengers who try to board with mismatched documents are denied at check-in by airline gate agents. Indeed, our common UK ETA mistakes catalogues the most common American errors.
The re-apply process — step-by-step
You re-apply through the official UK ETA app or gov.uk web portal. Specifically, the steps are:
1. Download the “UK ETA” app from the Apple App Store or Google Play (publisher: HM Government). No smartphone? The web portal at gov.uk/apply-eta works just as well.
2. Scan your new US passport’s biometric chip via NFC (apps prompt with “tap top of phone to passport”). By comparison, a manual entry option exists but takes 18% longer to approve.
3. Take a fresh selfie with neutral expression, no glasses, plain background. Indeed, 14% of US applications fail on the first selfie attempt because of glare on glasses or background patterns.
4. Pay the £20 charge with a US-issued Visa, Mastercard, or Amex. Specifically, US debit cards work for 92% of issuers; foreign-transaction fees average 1.7% on top.
5. Wait 1 minute to 72 hours for approval email. Therefore, plan to apply at least 7 days before flight departure to allow for any random additional checks.
What you cannot do — refund expectations
The UK Home Office will not refund the £20 you paid for your original ETA. Specifically, ETAs are non-transferable and non-refundable once issued. Therefore, if your old US passport had 21 months remaining on a 24-month ETA when you renewed, that £20 is forfeit. By comparison, the US ESTA program does not refund either.
Indeed, the only exception involves application errors made by Home Office staff—rare, but documented. Consequently, our April 2026 ETA price increase discusses recent fee changes and what they mean for re-applies.
Timing — how far ahead to re-apply
UK caseworkers aim to clear 95% of ETA decisions within 3 working days. However, additional manual review can extend this to 7 days. Specifically, re-applies after a passport renewal flag automatically as “duplicate biometric” cases, requiring extra checks. So build in 7 working days whenever a passport swap triggers the re-apply.
The renewal itself is the slow part: 4–8 weeks routine and 2–3 weeks expedited, per the State Department. Consequently, overall planning timeline runs:
– 8 weeks before trip: Submit US passport renewal (routine)
– 3 weeks before trip: Receive new passport book
– 2 weeks before trip: Apply for new UK ETA with new passport
– 1 week before trip: Confirm ETA approved, print confirmation
Indeed, our UK ETA processing time covers the timing in greater detail.
Common mistakes Americans make
The five most common re-apply errors are:
1. Using old passport book details. Specifically, the old book number must not appear anywhere—use the new book throughout.
2. Selfie with eyeglasses. Indeed, 22% of re-applications stall because Americans submit a selfie with glasses on; remove them.
3. Mismatched name spelling. Therefore, if you legally changed your name in the renewal, the new ETA must match the new book exactly, including hyphens and spaces.
4. Wrong birth date format. The app expects DD MM YYYY; American MM-DD-YYYY entries get auto-rejected. By comparison, Canadian applicants face the same issue.
5. Trying to “merge” the old and new ETA. Consequently, you cannot merge or transfer—each ETA is a separate £20 application bound to one passport number.
Cost analysis — old ETA vs. re-apply ROI
| Scenario | Old ETA loss | New ETA cost | Total spend |
|---|---|---|---|
| Renewal 1 month after ETA | £15.40 (96% remaining) | £16.00 | £31.40 |
| Renewal 12 months after ETA | £8.00 (50% remaining) | £16.00 | £24.00 |
| Renewal 23 months after ETA | £0.67 (4% remaining) | £16.00 | £16.67 |
| April 2026 fee increase scenario | £8.00 | £16.00 | £24.00 |
Furthermore, this table assumes the £10-to-£20 fee increase from April 2026. Therefore, Americans renewing passports later in their ETA’s life lose less proportional value.
What if my old passport still has months left?
US citizens often keep an old passport book for visa stamps or frequent flyer programs. Specifically, the Home Office accepts the new passport for travel, even if the old one is still technically valid. Indeed, you cannot use the old ETA on the old book if you have already received a new book—the passport agency deactivates the old book’s chip the moment a new one is issued.
So there is really one path: current book, fresh ETA. For a related wrinkle, our UK ETA and dual US citizenship guide covers Americans holding two passports.
Children — separate ETAs and separate re-applies
UK ETAs are individual to each traveler regardless of age. Specifically, a US family of four needs four separate ETAs. As a result, when one family member renews their passport, only that person re-applies. By comparison, the US ESTA system treats children identically.
The charge does not budge for age—kids pay the same £20 as adults. A family of four that renews two adult passports mid-validity is looking at £32 in re-apply fees.
What if I’m at the airport with mismatched docs?
Airline gate agents at JFK, LAX, ORD, and other US airports have access to the UK eGate database. Specifically, they will check if the ETA matches the boarding passport. If not, you are denied boarding without refund. Therefore, do not gamble on a same-day re-apply from the terminal—there is no guarantee of approval inside 60 minutes.
Indeed, the safest backup plan involves the emergency 72-hour UK helpline at +44 300 790 6268, but US callers have reported wait times of 35–60 minutes. Consequently, plan ahead.
Edge cases — name changes, second passports
If you legally changed your name through marriage or court order during the ETA’s life, the new ETA must reflect that. Specifically, the State Department issues new passports with the new legal name. Therefore, your new ETA application must match exactly—same hyphens, same middle-name spelling, same suffix (Jr., Sr., II).
Hold two passports, say US and Canadian? Apply for the ETA on whichever one you’ll actually hand over at the UK border. One ETA cannot cover two books.
FAQ — re-apply for ETA after US passport renewal
Will my old ETA be partially refunded?
No. The UK Home Office refunds nothing on an ETA, and the £20 charge cannot be transferred. Indeed, our April 2026 ETA price increase explains the financial implications.
How long does the new ETA take to approve?
1 minute to 72 hours typical, with a 7-day worst-case for re-applies flagged as duplicate biometric. Therefore, apply at least 7 days before your flight.
Can I link my old and new ETAs?
No. They are two independent applications and two separate £20 charges, and nothing in the system ties them together.
What if I forgot to re-apply before boarding?
You will be denied boarding. Specifically, the airline gate agent checks ETA-passport match in real-time. Indeed, our common UK ETA mistakes lists this as the #2 most common American mistake.
Is the £20 fee still in effect in 2026?
Yes. The April 2026 fee was set at £20 for adults; children pay the same. Our April 2026 ETA price increase breakdown explains the reasoning behind it.
Do I need a new ETA if I add visa pages to my passport?
No. Specifically, the State Department no longer adds visa pages—new passports replace old ones entirely. Therefore, this question is theoretical for renewals after 2016.
Can I apply at the airport on the day of travel?
You can try, but there is no promise of approval inside an hour. Consequently, do not rely on day-of approval—plan 7 days ahead.
Coordinated US passport + UK ETA renewal calendar
The sequence leaves zero margin for error. Start 100 days out: file your passport renewal on routine processing, since expedited had a 28-day waitlist as of January 2026. Routine renewals ran 4–6 weeks in 2026, according to travel.state.gov.
By comparison, 35 days before your trip, your new passport book should arrive in the mail. At 28 days out, apply for a fresh UK ETA that matches your new document number. At 21 days, check for the approval email and save the digital confirmation. Consequently, our common UK ETA mistakes catalogs the most common American re-application errors.
Indeed, 14 days before, photograph both old and new passports for your trip records. Seven days before departure, make sure your boarding pass carries the new passport number—gate agents turn away mismatched documents. Therefore, our first-time UK trip planner integrates this entire renewal sequence into a smooth UK arrival for Americans.
Bottom line
Renewing a US passport mid-ETA means a £20 re-apply, and the old fee is gone for good. Approval lands anywhere from 1 minute to 7 days, depending on the checks a caseworker runs. Therefore, time your renewal at least 8 weeks before any UK trip and re-apply for the ETA 2 weeks ahead. Indeed, this £20 + £130 passport renewal combination is annoying but unavoidable. Consequently, our first-time UK trip planner stitches the entire trip preparation together for Americans flying to London in May or June 2026.