Resource library

Start with the source.

Official guidance will not answer every planning question, but it provides a better foundation than summaries without context or dates.

7 official starting points
External sources open in a new tab. Review their effective dates and scope.

Tax & reporting · United States

IRS International Taxpayers

Starting point for U.S. international filing and reporting topics.

U.S. Internal Revenue Service
Reporting · United States

FBAR Reference Guide

Official information about foreign financial account reporting.

FinCEN
Retirement · United States

International Social Security Agreements

Country agreements and general coordination information.

Social Security Administration
Tax treaties · United States

Tax Treaties

Treaty documents and technical explanations where available.

U.S. Treasury
Residency · Netherlands

Netherlands Immigration and Naturalisation Service

Official residence-permit information, including self-employment routes.

IND
Mobility · European Union

Your Europe

Official guidance for living, working, and retiring across EU countries.

European Union
Tax residency · International

OECD Tax Residency

Jurisdictional tax-residency information used for financial-account reporting.

OECD