Guide to Tax Residency Abroad
Navigating rules, treaties, and exit taxes for expats and digital nomads.
One of the most complex parts of moving to a new country is understanding how your tax obligations will change. Tax residency is distinct from immigration residency; you can have a visa to live somewhere without automatically becoming a tax resident, though the two often overlap. This guide covers the basics of tax residency, exit taxes, double taxation treaties, and specific rules for US (IRS) and Canadian (CRA) expats.
How Tax Residency is Determined
In most countries, tax residency is determined by a few key factors:
- The 183-Day Rule: If you spend more than 183 days in a country during a 12-month period, you are typically considered a tax resident.
- Center of Vital Interests: This looks at where your primary home, family, and economic ties (like a business or main bank accounts) are located.
- Citizenship-Based Taxation: The United States and Eritrea are unique in taxing their citizens on global income regardless of where they live.
Exit Taxes
Before you sever ties with your home country, you must consider the exit tax (or departure tax). This is a tax on unrealized capital gains on your assets when you leave.
- Canada (CRA): When you emigrate from Canada and cease to be a tax resident, you are deemed to have sold certain types of property at fair market value and immediately reacquired them. You must pay tax on the capital gains.
- United States (IRS): The US has an expatriation tax that applies to individuals who renounce their US citizenship or give up a long-term green card, provided they meet certain wealth or tax liability thresholds.
Double Taxation Treaties
To prevent expats from being taxed on the same income by two different countries, many nations have established Double Taxation Agreements (DTAs).
These treaties use "tie-breaker" rules to determine which country has the primary right to tax your income based on where you have a permanent home, your center of vital interests, your habitual abode, and finally, your nationality.
Cross-Links and Related Information
Tax residency is just one part of your international move. Make sure you are prepared by checking our Moving Abroad Checklist.
You may also want to read about International Banking to manage your money across borders, or learn how to maintain a legal address back home with our Mail Forwarding Guide.
Frequently Asked Questions
What is an exit tax?
An exit tax is a tax imposed by some countries when a resident decides to permanently move abroad and give up their tax residency. It often applies to unrealized capital gains on assets.
Do I have to pay taxes in two countries?
Not always. Many countries have Double Taxation Treaties to ensure you don't pay tax on the same income twice. However, US citizens must always file US taxes regardless of where they live.
How is tax residency determined?
Tax residency is usually determined by physical presence (e.g., spending more than 183 days in a country), residential ties (home, family), or citizenship (in the case of the US).