Upload your docs. An experienced tax advisor prepares, reviews, and files your return — from $500. UK Self Assessment prepared alongside when you need it.
via FTC + Foreign Tax Credit
Treaty path · US → UK
United States
$18,440
Resident · 2025
United Kingdom
£1,225
Equity events · TY 2025
A short intro call, signed engagement, payment, and we do the rest. Total time on your side: about 30 minutes.
We learn about your situation
Engagement letter + your docs
$500 simple / $950 complex
incl VAT
Return prepared, reviewed & filed
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.
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Pay once per return. VAT included. No back-and-forth on every email or extra add-ons after.
$500
One-time fee · incl. VAT
Best for: Straightforward W-2/salary income with standard US investment accounts.
$950
One-time fee · incl. VAT
Save $500+ vs traditional firms
Best for: Returns with equity comp, capital gains, rental income, foreign accounts, business income, or other complex situations.
Every form, calculation, and treaty position an expat might need — handled by experienced tax advisors.
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.
We model both the Foreign Earned Income Exclusion and Foreign Tax Credit and pick the path that minimizes your liability.
Treaty-based positions (Form 8833), totalization, and currency conversion at IRS yearly rates — handled.
RSU vesting, ISO/NSO exercises, ESPP dispositions, and AMT — across multiple jurisdictions and tax years.
Foreign account reporting (FinCEN 114) and high-balance disclosure (Form 8938) prepared alongside your return.
Your complete return — Form 1040, Schedules, Form 2555 or 1116, and all required attachments — reviewed and filed by an experienced tax advisor.
Deep treaty analysis and local tax authority integration across every cross-border corridor you live and work in — Americas, Europe, and Asia-Pacific.
IRS · Federal & state income tax
Federal and state filing, FBAR/FATCA reporting, and outbound expat treatment for citizens and resident aliens.
CRA · Income Tax Act
Canada/US treaty coordination, departure tax planning, and cross-border RRSP/TFSA treatment.
SAT · ISR
Mexican income tax, residency-based taxation, and US/Mexico treaty coordination.
Receita Federal · IRPF
Brazilian income tax, worldwide income reporting, and Capital Gains coordination.
HMRC · PAYE · National Insurance
UK income tax and NIC, statutory residence test, equity compensation, and treaty coordination.
Revenue · PAYE · USC
Irish residence and domicile rules, PRSI coordination, and equity compensation treatment.
Finanzamt · Einkommensteuer
German income tax, social security totalization, and progressive tax coordination.
DGFiP · Impôt sur le revenu
French income tax, social charges coordination, and wealth tax (IFI) considerations.
Belastingdienst · 30% Ruling · Box 1/2/3
Dutch income tax, 30% expat ruling, and substantial interest rules.
SPF Finances · IPP
Belgian income tax, special expat regime, and social security coordination.
ESTV · Cantonal tax
Federal and cantonal tax variation, pillar system, and at-source withholding.
BMF · Einkommensteuer
Austrian income tax, progressive bracket coordination, and social security totalization.
Agencia Tributaria · IRPF · Modelo 720
Spanish IRPF, Beckham Law regime, and overseas asset reporting (Modelo 720).
Agenzia delle Entrate · IRPEF
Italian IRPEF, impatriate regime, and social security coordination.
AT · IRS · NHR regime
Portuguese IRS, Non-Habitual Resident regime, and treaty coordination.
AADE · Φόρος εισοδήματος
Greek income tax, non-dom regime, and investment income treatment.
Skatteverket · Inkomstskatt
Swedish income tax, expert tax relief, and social security totalization.
Skattestyrelsen · Forskerskat
Danish income tax, researcher tax scheme, and social security coordination.
Skatteetaten · Skattemelding
Norwegian income tax, petroleum tax considerations, and wealth tax coordination.
Vero · Tuloverotus
Finnish income tax, key employee tax relief, and social security coordination.
KAS · PIT
Polish PIT, IP Box regime for tech contractors, and B2B structuring.
FSČR · Daň z příjmů
Czech income tax, social/health insurance coordination, and EU/treaty rules.
ITA · Mas Hachnasa
Israeli income tax, new immigrant benefits, and social security coordination.
FTA · Corporate Tax
Zero personal income tax, UAE corporate tax registration, and home-country tie-breaking.
IRAS · Income Tax
Territorial tax system, foreign-sourced income exemption, and EP/EntrePass holder structuring.
IRD · Salaries Tax
Territorial source principle, sixty-day rule, and inbound assignment structuring.
NTA · Shotokuzei
Permanent vs non-permanent resident classification, equity comp timing, and treaty coordination.
Income Tax Department · ITR
Resident but not ordinarily resident (RNOR) status, RSU taxation, and treaty benefits.
ATO · PAYG
Resident vs non-resident determination, superannuation portability, and DASP planning.
IRD · Income Tax
NZ residency tests, transitional resident relief, and US/NZ treaty coordination.
NTS · Income Tax Act
Korean income tax, foreign tax-free allowance for inbound expats, and US/Korea treaty.
MOF · Income Tax Act
Taiwan-source vs worldwide income, AMT considerations, and inbound assignee structuring.
RD · PIT
Thai income tax, remittance basis for foreign-sourced income, and Long-Term Resident regime.
Need a jurisdiction not listed? We cover everywhere. Ask us about your corridor.
Every form your return might need — automatically determined based on your situation.
“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.
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.
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.
Founder & CEO · Oslo
Join expats worldwide who use Agentax to stay compliant on both sides of the border — starting at $500.