US & UK tax filing for expats.

Upload your docs. An experienced tax advisor prepares, reviews, and files your return — from $500. UK Self Assessment prepared alongside when you need it.

🇺🇸United States
+
🇬🇧United Kingdom
Jane Doe · Cross-border review US · UK
$18,640tax savings · TY 2025

via FTC + Foreign Tax Credit

Treaty path · US → UK

United States

$18,440

Resident · 2025

United Kingdom

£1,225

Equity events · TY 2025

  • RSU vest · Tranche 02$48,200RSU
  • NSO exercise · Lot 014$31,400NSO
  • ISO exercise · Lot 017$12,860ISO
How it works

Four steps from inbox to filed.

A short intro call, signed engagement, payment, and we do the rest. Total time on your side: about 30 minutes.

Step 1

Intro call

We learn about your situation

Step 2

Sign & upload

Engagement letter + your docs

Step 3

Pay

$500 simple / $950 complex

incl VAT

Step 4

We do the rest

Return prepared, reviewed & filed

Get started

Schedule your free intro call.

Create your account and request a free 15-minute intro call. We'll discuss your situation and confirm we can help before any documents or payments.

or

By submitting, you agree to our Terms of Service and Privacy Policy.

Prefer to chat first?Message us on WhatsApp
Pricing

One-time price. No subscriptions.

Pay once per return. VAT included. No back-and-forth on every email or extra add-ons after.

Simple Filing

$500

One-time fee · incl. VAT

  • Salary / basic employment income abroad
  • US dividends & interest (1099-DIV/INT)
  • FEIE vs FTC optimization
  • Standard set of forms (1040, 2555/1116, Sch B)
  • Experienced advisor review + filing

Best for: Straightforward W-2/salary income with standard US investment accounts.

Advanced Filing

Most popular

$950

One-time fee · incl. VAT

Save $500+ vs traditional firms

  • Everything in Simple, plus:
  • FBAR / FATCA foreign account reporting
  • Capital gains (stocks, bonds, crypto)
  • Equity compensation (RSU, ISO, NSO, ESPP)
  • Rental / business / LLC / K-1 income
  • Inheritance, retirement (backdoor Roth / 401k)
  • Additional forms (Sch D, 8949, 8938, Sch E, Sch C, etc.)

Best for: Returns with equity comp, capital gains, rental income, foreign accounts, business income, or other complex situations.

Coverage

Built for international tax complexity.

Every form, calculation, and treaty position an expat might need — handled by experienced tax advisors.

Full-Service Preparation

Upload your documents and an experienced tax advisor prepares your entire return — US 1040 and UK Self Assessment where needed. No tax jargon or questionnaires required.

FEIE & FTC Optimization

We model both the Foreign Earned Income Exclusion and Foreign Tax Credit and pick the path that minimizes your liability.

Treaty & Multi-Currency

Treaty-based positions (Form 8833), totalization, and currency conversion at IRS yearly rates — handled.

Equity Compensation

RSU vesting, ISO/NSO exercises, ESPP dispositions, and AMT — across multiple jurisdictions and tax years.

FBAR & FATCA

Foreign account reporting (FinCEN 114) and high-balance disclosure (Form 8938) prepared alongside your return.

IRS-Ready Filing Package

Your complete return — Form 1040, Schedules, Form 2555 or 1116, and all required attachments — reviewed and filed by an experienced tax advisor.

Global Coverage

Tax intelligence across 30+ jurisdictions.

Deep treaty analysis and local tax authority integration across every cross-border corridor you live and work in — Americas, Europe, and Asia-Pacific.

  • USUnited States
  • CACanada
  • MXMexico
  • BRBrazil
  • GBUnited Kingdom
  • IEIreland
  • DEGermany
  • FRFrance
  • NLNetherlands
  • BEBelgium
  • CHSwitzerland
  • ATAustria
  • ESSpain
  • ITItaly
  • PTPortugal
  • GRGreece
  • SESweden
  • DKDenmark
  • NONorway
  • FIFinland
  • PLPoland
  • CZCzech Republic
  • ILIsrael
  • AEUnited Arab Emirates
  • SGSingapore
  • HKHong Kong
  • JPJapan
  • INIndia
  • AUAustralia
  • NZNew Zealand
  • KRSouth Korea
  • TWTaiwan
  • THThailand

Need a jurisdiction not listed? We cover everywhere. Ask us about your corridor.

Forms

19 IRS forms supported.

Every form your return might need — automatically determined based on your situation.

  • 1040US Individual Income Tax Return
  • 1–3Schedules 1–3
  • A–SESchedules A/B/C/D/E/SE
  • 2555Foreign Earned Income Exclusion
  • 1116Foreign Tax Credit
  • 8949Capital gains & asset sales
  • 8938FATCA reporting
  • 8833Treaty-based disclosure
  • 8960Net Investment Income Tax
  • 4868Filing extension
  • 8879E-file signature
5.0

Trusted by expats across borders.

The advisory memo was incredibly thorough — it covered both the Dutch side and IRS obligations and saved me over $3,000 compared to the firm I used the year before.

Wessel S.

Wessel S.

Engineer at Google · Amsterdam

I needed to understand the implications of early exercising my stock options as an American in Amsterdam. Agentax helped me unlock >20% in tax savings I didn't know I was leaving on the table.

David K.

David K.

Solutions Engineer at Stripe · Amsterdam

As an American Founder & CEO living in the EU with income across continents, Agentax made filing taxes from abroad incredibly easy. I was behind a few years as well and they cleared it up without any issues. Highly recommended!

Brian K.

Brian K.

Founder & CEO · Oslo

Ready to file your 2025 return?

Join expats worldwide who use Agentax to stay compliant on both sides of the border — starting at $500.