US expats receive an automatic filing extension to June 15 — no form required
File nowUS tax filing for Americans in London.
File your 2025 US return before the June 15 expat deadline. A licensed international tax advisor prepares, reviews, and e-files your 1040, 2555/1116, FBAR and Form 8833 — from $250.
Why filing before June 15 matters.
US citizens living abroad get an automatic 2-month extension to June 15 — but interest already runs from April 15, and missing June 15 triggers failure-to-file penalties of 5% per month of unpaid tax.
Avoid 5% / month penalty
Failure-to-file penalty kicks in from June 16 if you owe any US tax — up to 25% of the balance.
Stop interest from accruing
Interest accrues from April 15 on unpaid US tax. Filing now stops the meter on what you owe.
Keep FBAR clean
FBAR (FinCEN 114) was due April 15 but auto-extends to October 15. Filing now means one clean package, not two.
Four steps from inbox to filed.
A short 15-min intro call (a licensed advisor responds within 48 hours of your request), signed engagement, payment, and we file before June 15. Total time on your side: about 30 minutes.
Intro call
15 min — we learn about your UK situation
Sign & upload
Engagement letter + W-2/P60 + brokerage docs
Pay
$250 simple / $850 complex
incl VAT
Filed before June 15
Return prepared, reviewed & e-filed
Beat the June 15 deadline.
Submit your details and a licensed US international tax advisor will reach out within 48 hours to schedule your free 15-minute intro call. No documents, no payment, no commitment at this stage.
By submitting, you agree to our Terms of Service and Privacy Policy.
One-time price.
No subscriptions.
Pay once per return. VAT included. No hourly billing, no add-ons after.
Simple Filing
$250
One-time fee · incl. VAT
- UK salary income (P60 → 1040)
- US dividends & interest (1099-DIV/INT)
- FEIE vs FTC optimization
- Standard set (1040, 2555/1116, Sch B)
- Licensed advisor review + e-file
Best for: PAYE salary at a UK employer with a basic US brokerage account.
Advanced Filing
$850
One-time fee · incl. VAT
Save $500+ vs traditional firms
- Everything in Simple, plus:
- FBAR / FATCA (Monzo, Starling, ISA, SIPP)
- RSU vesting, ISO/NSO exercises, ESPP
- Capital gains (UK brokerage, crypto)
- UK rental income (Schedule E)
- Self-employment / Ltd company / K-1
- Treaty positions (Form 8833)
Best for: Equity comp, UK property, multiple UK accounts, self-employment, or anything beyond pure PAYE.
Built for the UK–US tax stack.
Every form, calculation and treaty position an American in the UK might need — handled by licensed advisors.
Full-Service Preparation
Upload your W-2, P60, brokerage statements and HMRC Self Assessment — a licensed advisor prepares your entire 1040. No questionnaires, no tax jargon.
FEIE vs FTC for UK Salaries
On UK salaries, FTC almost always beats the FEIE because UK rates exceed US rates. We model both and pick whichever reduces your US tax to zero.
GBP → USD at IRS Yearly Rate
All UK income, HMRC tax paid and brokerage activity converted at the IRS 2025 yearly average (£1 = $1.3175). No spreadsheet juggling.
RSU, ISO, NSO & ESPP
Equity comp at Google, Stripe, Meta, Revolut, Wise — handled across HMRC and IRS, including double-taxation relief via Form 8833 treaty positions.
FBAR & FATCA
Monzo, Starling, HSBC, ISA, SIPP, Vanguard UK — foreign account reporting (FinCEN 114) and Form 8938 prepared alongside your return.
IRS-Ready Filing Package
Form 1040, Schedules, Form 2555 or 1116, FBAR, Form 8938, Form 8833 — reviewed and e-filed by a licensed advisor.
Every form an American in the UK needs.
Automatically determined based on your UK situation — no need to know which form is which.
- 1040US Individual Income Tax Return
- 2555Foreign Earned Income Exclusion
- 1116Foreign Tax Credit (UK tax paid)
- 8833UK–US treaty positions
- 8938FATCA reporting (UK accounts)
- 114FBAR (FinCEN — UK accounts)
- 8949Capital gains (UK brokerage / crypto)
- Sch EUK rental income
- 4868Further extension to Oct 15
Trusted by Americans across the UK.
“The advisory memo was incredibly thorough — it covered both HMRC and IRS obligations and saved me over $3,000 compared to the firm I used the year before.”
Sarah M.
Sales Manager at Google · London
“As a self-employed founder with HMRC, I also own rental property in the US. H&R Block and TurboTax couldn't handle it. Agentax handled everything perfectly — Schedule E, self-employment, and UK treaty provisions.”
James R.
Founder & CEO · Edinburgh
“I'd been DIY'ing my 1040 for years and always worried I was overpaying. They got my filing done in under a week and walked me through every line of the treaty position.”
Michael T.
Engineering Manager · London
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File before June 15 — 20 days left.
Request a free 15-min intro call — a licensed advisor responds within 48 hours. Filing from $250.
Responds within 48 hours · Filing from $250