Renouncing US Citizenship: The Tax Side — Form 8854, Exit Tax, and What Happens After

2026-07-09

Renouncing US citizenship is irreversible. The consular fee is $2,350. The tax consequences can be orders of magnitude larger. Here's what happens.

The Process

Make an appointment at a US embassy or consulate
Attend an in-person interview with a consular officer
Sign Form DS-4079 (Questionnaire — Information for Determining Possible Loss of US Citizenship)
Sign Form DS-4080 (Oath of Renunciation of the Nationality of the United States)
Receive a Certificate of Loss of Nationality (CLN)
File Form 8854 with your final tax return

The Tax Analysis: Are You a Covered Expatriate?

You're a covered expatriate if you meet ANY of these three tests:

Net worth test. Your net worth on the date of expatriation is $2 million or more. This includes worldwide assets: your foreign home, your foreign retirement accounts, your foreign business, your foreign bank accounts. If you own a home in London worth £1.5 million, you've exceeded the threshold by that asset alone. The $2 million threshold has not been inflation-adjusted since 2008.

Tax liability test. Your average annual net income tax liability for the five tax years ending before expatriation exceeds $201,000 (2025, inflation-adjusted annually). This catches high-earning professionals — finance, tech, medicine, law. If you paid an average of $200,000+ in US income tax over the last five years, you're covered.

Compliance test. You fail to certify on Form 8854 that you've complied with all US federal tax obligations for the five years preceding expatriation. This test exists to catch people trying to leave without paying. File your taxes. Pay what you owe. Get compliant before you renounce.

If you fail any of the three tests, you're a covered expatriate and the exit tax applies.

The Exit Tax (Section 877A)

The exit tax is a mark-to-market tax on all your assets as of the day before expatriation. Every asset you own — stocks, real estate, business interests, retirement accounts — is treated as sold for fair market value. You recognize gain as if you'd liquidated everything.

The first $866,000 of gain (2025, inflation-adjusted) is excluded. Gain above $866,000 is taxed at the applicable capital gains rate — or ordinary income rates for ordinary income assets like collectibles and inventory.

Example: You own a startup you founded that's now worth $3 million. Your basis is $100,000. Your gain at expatriation is $2.9 million. Subtract the $866,000 exclusion = $2,034,000 of taxable gain. At the top capital gains rate (23.8% including NIIT), the exit tax is approximately $484,000.

Deferral election. You can defer paying the exit tax on certain assets by posting a bond and agreeing to pay the tax (plus interest) when you actually sell the asset. This is common for illiquid assets — private company stock, closely held business interests, real estate you don't want to sell. The deferral is elective, not automatic. File the election with your final return.

Form 8854

Form 8854, Initial and Annual Expatriation Statement, is filed with your final Form 1040. It's a multi-part form:

Part I: General information about your expatriation
Part II: Covered expatriate determination (the three tests)
Part III: Balance sheet — all your assets and liabilities on the expatriation date
Part IV: Exit tax calculation (if you're covered)
Part V: Deferral election (if applicable)

The balance sheet is the most invasive part. You list every asset you own worldwide, its FMV, and its basis. If you own assets in multiple countries, currencies, and entity types, the valuation work alone can take weeks.

After Renunciation

Once your renunciation is effective, you're a nonresident alien for US tax purposes. This means:

Your foreign-source income is no longer US-taxable
Your US-source income (rental property, dividends from US stocks, partnership income) remains taxable at the applicable nonresident rate or treaty rate
You may need to file Form 1040-NR for US-source income
If you later return to the US as a resident, you'll transition back to worldwide taxation

Renunciation eliminates future filing obligations. It does not eliminate past obligations. You still owe tax on pre-renunciation income. The IRS can audit your returns for the years before expatriation.

The Reed Amendment

Under Section 212(a)(10)(E) of the Immigration and Nationality Act (the Reed Amendment), former US citizens who renounced for tax avoidance purposes are inadmissible to the United States. In practice, this provision has never been enforced — the government has not issued regulations implementing it, and there are no reported cases of someone being denied entry under the Reed Amendment. But it's on the books, and the political environment can change.

What an EA Can Do

An EA can prepare Form 8854, compute the exit tax, and file your final return. If the exit tax is substantial, an EA may work with a tax attorney to structure the expatriation optimally — timing the renunciation date, managing the net worth threshold, and preparing the deferral election if applicable. An EA cannot represent you in the renunciation interview at the embassy. That's between you and the consular officer.

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