The US Exit Tax: When Renouncing Citizenship Triggers a Bill

The US exit tax is a one-off capital gains tax applied to certain individuals who relinquish their American citizenship or long-term residency. It treats the individual's global assets as if they were sold for fair market value on the day before expatriation, potentially triggering a significant tax liability on unrealised gains.

Key Takeaways

• Determining Status: The tax applies only to "covered expatriates" based on net worth, income tax history, or tax compliance certification.
• The Net Worth Test: Individuals with a global net worth exceeding $2 million are automatically categorised as covered expatriates.
• Cost Basis: Assets are evaluated based on their fair market value at the time of departure, with a tax-free exclusion amount applied to the total gain.
• Deferred Compensation: Pensions and IRAs are subject to special rules that may require immediate taxation or 30% withholding.
• Long-term Residents: Green card holders who have held their status for eight out of the last fifteen years are also subject to these rules.

What is the US Exit Tax?

Formally known as the Section 877A expatriation tax, the US exit tax was introduced as part of the Heroes Earnings Assistance and Relief Tax (HEART) Act of 2008. Unlike most countries, the United States taxes its citizens on their worldwide income regardless of where they live. To prevent individuals from leaving the tax net to avoid future capital gains taxes, the Internal Revenue Service (IRS) imposes a final "toll charge" on those who renounce their citizenship or exit their permanent residency status.

This is a mark to market regime. This means the IRS views you as having sold every asset you own (houses, stocks, businesses, artwork) at midnight on the day before you expatriate. If the total gain on those fictional sales exceeds a specific threshold, you owe tax on the excess. For 2024, the exclusion amount is $866,000; any gain below this figure is not taxed, but the reporting requirements remain mandatory.

Who Is Considered a Covered Expatriate?

Not everyone who leaves the US pays the exit tax. You are only subject to the tax if you fall into the category of a "covered expatriate." You meet this definition if you satisfy any one of the following three tests:

1. The Net Worth Test

If your global net worth (including all properties, retirement accounts, and business interests) is $2 million or more on the date of expatriation, you are a covered expatriate. This threshold is not inflation-adjusted and applies to individuals. For married couples, each spouse is evaluated separately based on their own assets and their share of joint assets.

2. The Net Income Tax Requirement Test

If your average annual net income tax for the five years ending before the date of expatriation is more than a certain limit, you are a covered expatriate. For 2024, this threshold is $201,000. Note that this refers to your tax liability (the amount you actually paid the IRS), not your total gross income.

3. The Tax Compliance Test

You must certify on Form 8854 that you have complied with all US federal tax obligations for the five years preceding your expatriation. If you cannot certify this, perhaps due to missed FBAR filings or incomplete returns, you are automatically a covered expatriate regardless of your net worth or income.

How is the Exit Tax Calculated?

The calculation for the US exit tax is complex because it involves valuing assets that have not actually been sold. This requires formal appraisals for real estate and private business interests.

Mark to Market Calculation

For most assets, the gain is calculated by taking the fair market value on the day before expatriation and subtracting the original cost basis. The $866,000 exclusion (for 2024) is then applied. For example, if an expat has $2 million in unrealised gains, they would only pay tax on $1,134,000 of those gains.

Treatment of Deferred Compensation

Certain assets are not subject to the mark to market rule but are handled under "ineligible deferred compensation" rules. This includes most corporate pensions and 401(k) plans. Generally, if you are a covered expatriate, the payer must withhold 30% of any taxable payment made to you after you leave. For "eligible" deferred compensation, you may waive treaty benefits to avoid immediate taxation, but this requires expert advice to execute correctly.

Comparison Table: Covered vs. Non-Covered Expatriates

Does the Tax Apply to Green Card Holders?

A common misconception is that the exit tax only applies to US citizens. In reality, it applies to "Long-Term Residents" (LTRs). An LTR is defined as someone who has been a lawful permanent resident (a green card holder) in at least 8 of the last 15 taxable years.

If you have held a green card for seven years and surrender it in the eighth year, you may trigger the exit tax if you meet the net worth or income tests. Importantly, years where you claimed treaty benefits to be treated as a resident of another country do not count toward the eight-year period, but this must have been formally disclosed on Form 8833.

What Are the Implications for Heirs?

The consequences of being a covered expatriate extend beyond the individual's departure. Under Section 2801, if a covered expatriate gives a gift or leaves an inheritance to a US citizen or resident, the recipient may be taxed at the highest marginal gift or estate tax rate (currently 40%). This is a significant burden, as the tax is paid by the receiver, and many of the standard exemptions do not apply.

Can You Avoid the US Exit Tax?

Strategic planning before renouncing or surrendering a green card is essential. Common strategies include:

1. Gifting Assets: If an individual is close to the $2 million threshold, they may gift assets to a spouse or children to bring their personal net worth below the limit. However, gifts to non-US citizen spouses are subject to annual limits.
2. Timing the Departure: Since the income tax test is based on a five-year average, individuals may wait until their moving average drops below the threshold.
3. Relinquishing Long-Term Residency Early: Green card holders should monitor their years of residency carefully and consider surrendering the card before reaching the eight-year mark.
4. Formal Appraisals: Using qualified appraisers to ensure the cost basis of foreign-acquired assets is correctly stepped up to the value held when the individual first became a US tax resident.

Compliance and Form 8854

Every individual who renounces citizenship or ends long-term residency must file IRS Form 8854 (Initial and Annual Expatriation Statement). This form is the mechanism by which you inform the IRS of your covered status and certify your tax compliance. Failure to file this form results in an automatic classification as a covered expatriate and a $10,000 penalty, even if no tax is actually owed.

Frequently Asked Questions

Are primary residences exempt from the exit tax?

No; unlike the domestic primary residence exclusion which allows for a $250,000 or $500,000 exclusion on capital gains, the exit tax rules treat the home like any other asset in the mark to market calculation. However, the general expatriation exclusion amount ($866,000 for 2024) can be applied to the gain on the home.

How does the IRS know my global net worth?

You are required to report your global assets under penalty of perjury on Form 8854. Additionally, FATCA (Foreign Account Tax Compliance Act) ensures that many international banks report the holdings of US persons to the IRS, making it difficult to hide offshore assets.

Is the exit tax a double taxation?

It can be; however, once the exit tax is paid, the "basis" of your assets is stepped up to the fair market value. If you later sell the asset in your new country of residence, you should only pay tax on the gain that occurred after your expatriation, depending on that country's tax laws and any relevant tax treaties.

Can I renounce if I haven't filed taxes for years?

You can physically renounce your citizenship at an embassy, but for tax purposes, you will be deemed a covered expatriate because you cannot certify five years of compliance. This often leads to the IRS pursuing the exit tax and back taxes simultaneously.

Does the exit tax apply to dual citizens from birth?

There is a narrow exception for individuals who were born with dual citizenship and continue to be taxed as a resident of the other country, provided they have not been a US resident for more than 10 of the last 15 years. These individuals may avoid covered expatriate status even if they exceed the net worth or income thresholds.

Disclaimer: This article is for informational purposes only and does not constitute legal or tax advice. The US exit tax is a highly complex area of law; readers should consult with a qualified tax professional or specialised international tax attorney before taking any action to expatriate.