Free US Tax Guides

US tax rules can vary significantly depending on where you live, your immigration status, and how your income or assets are structured.

These free guides are designed to help you understand how US tax rules commonly apply in cross-border situations before you file. They focus on areas where people often have questions or uncertainty, such as foreign income, overseas accounts, and reporting obligations.

Guides Based On Where You Live And Work

Tax Rules for US Citizens Earning Income Abroad

This guide explains how US taxes work for US citizens and green card holders living abroad, including how foreign income is reported on a US tax return and how the foreign earned income exclusion  and foreign tax credits may apply.

Tax Rules for Foreign Citizens Living in the United States

This guide explains how US tax residency is determined for foreign nationals, including the green card test and the substantial presence test, and how resident versus nonresident status affects what income must be reported to the IRS.

US Tax Essentials for Americans in the UK

This guide covers US tax issues commonly faced by Americans living in the UK, including employment income, pensions, ISAs, rental property, and ownership of UK companies under US tax rules.

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