Working or Starting a Business Abroad as a U.S. Taxpayer
Starting a business overseas, serving foreign customers, or earning a living online from another country can open new opportunities. It can also bring tax obligations in more than one country. Before you relocate or register a company, understand where your income will be taxed, how your business will be classified, and what you must report.
This guide focuses on U.S. citizens and people who remain U.S. tax residents, including many green card holders. It covers both expats working abroad and U.S.-based taxpayers doing business across borders. The details depend on your destination, business activities, and ownership structure.
Your U.S. Tax Obligations Can Follow You Abroad
U.S. citizens and resident aliens must report worldwide income, including foreign business profits and freelance earnings. Moving overseas, receiving payment in a foreign currency, or depositing money in a foreign bank does not by itself remove that obligation. Reporting income and owing tax are separate questions: exclusions and credits may reduce the tax, but you may still need to file.
A green card holder should not assume that living abroad ends U.S. tax residency. Treaty positions and ending residency require a separate review. State tax residency also deserves attention, especially if you keep a home or other substantial ties to a state.
Online Work Still Happens Somewhere
A business may have no storefront or dedicated office, but the person doing the work has a physical location. For U.S. tax purposes, income from personal services is sourced where you perform those services, rather than where your client, platform, or bank is located.
For example, a U.S. citizen who designs websites while living in Portugal generally earns foreign-source service income for that work, even if every client is American and payments go to a U.S. bank. Someone doing the same work from the United States for Portuguese clients generally earns U.S.-source service income. These examples concern service fees; sales of goods, royalties, and other income have different sourcing rules.
The country where you live may also tax you under its residency or local work rules. No local customers does not automatically mean no local tax. Keep records of where you work, including work performed during visits to the United States.
The Foreign Earned Income Exclusion Has Conditions
Eligible individuals may exclude a limited amount of foreign earned income from U.S. income tax using Form 2555. You must have a foreign tax home and meet either the bona fide residence test or the physical presence test, along with the other requirements.
The physical presence test requires at least 330 full days in foreign countries during a consecutive 12-month period. The bona fide residence test requires residence for an uninterrupted period that includes an entire tax year. Spending a few months abroad is not enough by itself.
The exclusion applies to qualifying earned income, not ordinary investment income such as interest and dividends. Incorporating overseas does not turn all company profits into your personal qualifying earned income.
Self Employment Tax May Still Be Due
For a U.S. citizen or resident working independently, U.S. self-employment tax applies when net earnings from self-employment are $400 or more. It funds Social Security and Medicare and is separate from income tax.
The foreign earned income exclusion does not reduce the earnings used to calculate self-employment tax. A freelancer could owe little or no federal income tax after the exclusion and still owe self-employment tax.
A Social Security totalization agreement may assign coverage to one country and prevent double contributions. The result depends on the particular agreement and your circumstances; a certificate of coverage may be needed. An income tax treaty and a totalization agreement are different agreements.
Foreign Tax Credits Can Help With Double Taxation
If both countries tax the same income, a foreign tax credit may reduce U.S. income tax for qualifying foreign income taxes, subject to limits. Individuals generally claim it on Form 1116.

Compare the credit with the foreign earned income exclusion before choosing an approach. You cannot claim a credit for foreign taxes attributable to income you exclude. Foreign tax credits also do not offset U.S. self-employment tax.
An applicable income tax treaty may provide additional relief, but many treaties preserve U.S. taxation of U.S. citizens through a saving clause. Treaty benefits depend on the country, the income, and the taxpayer; they are not a blanket exemption.
Choose Your Business Structure Before You Register
Operating as an individual, through a U.S. LLC, through a foreign partnership, or through a foreign corporation can produce very different results. A structure recommended locally may create substantial U.S. reporting costs. The same entity may also be classified differently by the two countries.
Depending on the facts, additional U.S. filings may include Form 5471 for certain foreign corporations, Form 8865 for certain foreign partnerships, and Form 8858 for foreign disregarded entities or foreign branches. Form 926 may apply to certain transfers of property to foreign corporations. These requirements depend on ownership, transactions, and other rules; not every overseas business needs every form.
Even a sole proprietor without a separate foreign company should review whether the activity constitutes a reportable foreign branch. Separately, controlled foreign corporation rules can require certain U.S. shareholders to include income before the company distributes cash. Leaving profits in an overseas company does not guarantee that U.S. tax is deferred.
International information returns can carry substantial penalties even when little or no income tax is due. Review the structure and annual compliance budget before you form or fund the business.
Foreign Customers Can Create Obligations Too
You do not have to move overseas to encounter foreign tax rules. Selling goods or services abroad can raise questions about withholding, value-added tax or goods and services tax, and local registration. For example, cross-border VAT treatment can depend on whether you sell goods or services and whether the customer is a business or consumer.
Hiring workers, holding inventory, or operating through a local office or agent may create further obligations. Whether a business has a taxable permanent establishment under a treaty requires a country-specific review. Personal tax residency and VAT obligations are separate questions.
If you will work remotely while living abroad, confirm that your visa permits the activity and find out about business registration and social contributions. A digital nomad visa does not, by itself, establish your U.S. tax treatment.
Foreign Accounts Have Separate Reporting Rules
An FBAR is required when a U.S. person has a financial interest in, or signature authority over, foreign financial accounts whose combined value exceeds $10,000 at any time during the calendar year. The threshold applies to the combined accounts, not each account separately. Business accounts can matter too.
Form 8938 may also apply to specified foreign financial assets. Its thresholds depend on filing status and whether you meet the rules for living abroad. Filing one form does not replace the other, and account reporting can be required even when an account produces no taxable income.
Plan Before You Move or Expand
Before you begin, discuss your destination, expected work locations, customers, proposed ownership structure, and payment arrangements with your U.S. tax adviser and an adviser familiar with the foreign country. Ask for an estimate of both taxes and annual filing costs.
Set up records for income, expenses, foreign taxes, exchange rates, account balances, and travel days. Allow for estimated tax payments and different filing calendars. Coordinate advice before signing formation documents or transferring money into an overseas company.
GurelCPA can help you review the U.S. tax and reporting issues involved in working or doing business abroad. Contact us before you relocate or establish a foreign business so that tax planning is part of the decision from the beginning.
The article is meant for informational purposes only. Please contact me directly to discuss how this applies to your individual tax situation.