Moving back to the United States after years abroad is not just a logistics exercise. It is a tax event -- often several tax events at once. You may lose the Foreign Earned Income Exclusion mid-year, owe back FBAR filings you never knew about, trigger state income tax in a jurisdiction you have not lived in for a decade, and face currency-gain complications on foreign property you thought was a straightforward sale. The penalties for getting these wrong are not theoretical. A single unfiled FBAR can cost up to $16,536 per report for non-willful violations. A missed Form 8938 carries a $10,000 penalty that can climb to $60,000 if you ignore the IRS notice.
The penalties for getting repatriation filings wrong are severe and stack quickly. A single unfiled FBAR can cost up to $16,536 for non-willful violations. A missed Form 8938 carries a $10,000 penalty that can climb to $60,000 if you ignore the IRS notice. File through the Streamlined Foreign Offshore Procedures before you return to the US to avoid the 5% penalty that applies to the domestic track.
Every US person with foreign financial accounts whose aggregate value exceeded $10,000 at any point during the year must file FinCEN Form 114, commonly called the FBAR. This is not an IRS form -- it is filed electronically with the Financial Crimes Enforcement Network under 31 USC 5314. The threshold is cumulative across all foreign accounts: checking, savings, brokerage, pension, and any account in which you have signature authority.
If you have been abroad for years and never filed an FBAR, you have a problem, but you also have options. The IRS Streamlined Filing Compliance Procedures exist specifically for taxpayers whose failure to file was non-willful. Through the Streamlined Offshore program (for those who lived abroad) or the Streamlined Domestic program (for those who have already returned), you can file the last three years of delinquent tax returns and six years of delinquent FBARs.
The penalty difference between these two tracks matters. The Streamlined Foreign Offshore Procedures waive all penalties entirely -- you owe only unpaid tax and interest. The Streamlined Domestic Offshore Procedures impose a 5% miscellaneous offshore penalty on the highest aggregate balance of your foreign financial assets during the compliance period. On a $500,000 foreign account, that is $25,000 versus zero. If you are planning to move back, filing through the foreign offshore track before you return and re-establish US residency is significantly cheaper.
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FBAR Penalties at a Glance
The stakes for ignoring foreign account reporting are steep:
- 5% miscellaneous offshore penalty on highest aggregate balance
- Unpaid tax plus interest on all delinquent years
- Additional accounting fees for catch-up filings
- All penalties waived entirely
- Only unpaid tax and interest owed
- Same catch-up filings required (3 returns + 6 FBARs)
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FATCA and Form 8938
Separate from the FBAR, IRC Section 6038D requires US taxpayers to report specified foreign financial assets on Form 8938, filed with your tax return. The thresholds depend on where you live:
- Living abroad (single): $200,000 on the last day of the tax year, or $300,000 at any time during the year
- Living abroad (married filing jointly): $400,000 on the last day, or $600,000 at any time
- Living in the US (single): $50,000 on the last day, or $75,000 at any time
- Living in the US (married filing jointly): $100,000 on the last day, or $150,000 at any time
The year you return, you shift from the higher thresholds to the lower domestic ones. Assets that did not require Form 8938 reporting while you lived in London may require it the moment you move to Chicago. The penalty for failure to file is $10,000 per year, with an additional $10,000 for each 30-day period of continued non-compliance after an IRS notice, up to a maximum additional penalty of $50,000.
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The Foreign Earned Income Exclusion Vanishes
While living abroad, you likely claimed the Foreign Earned Income Exclusion under IRC Section 911, which for 2026 allows you to exclude up to $132,900 of foreign earned income from US taxation. To qualify, you must meet either the bona fide residence test (tax home in a foreign country for a full calendar year) or the physical presence test (present in a foreign country for 330 full days in any 12-month period).
When you move back, you lose the exclusion -- but the timing determines how much of it you keep for the year of return. The exclusion is prorated daily. If you leave your foreign home on June 30, you get roughly half the annual exclusion: 181 qualifying days out of 365, or approximately $65,632 for 2026. Income earned after your return to the US is fully taxable with no exclusion available.
There is an additional trap. If you revoke the Section 911 election, you cannot re-elect it for five years without IRS approval. If there is any chance you might work abroad again within that window, think carefully before revoking. You may be better off simply not qualifying in the years you live domestically, which preserves your ability to re-elect without the five-year lockout.
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Foreign Tax Credits: The Better Strategy After Return
Once you no longer qualify for the Foreign Earned Income Exclusion, Form 1116 and the foreign tax credit become your primary tool for avoiding double taxation. The credit provides a dollar-for-dollar offset against US tax for income taxes paid to a foreign government. The deduction, taken on Schedule A, only reduces taxable income -- which means it saves you your marginal rate on the taxes paid, not the full amount.
For nearly every returning expat, the credit beats the deduction. A taxpayer in the 24% bracket who paid $20,000 in foreign taxes saves $20,000 with the credit but only $4,800 with the deduction. The math is not close.
Two carryover rules matter. Unused foreign tax credits carry forward for ten years and carry back one year. This means foreign taxes paid during your last year abroad that exceed your US tax liability on that income are not wasted -- they can offset US tax in the years after your return. If you switch between the credit and the deduction from year to year, however, you lose the carryover benefit for the deduction year. Commit to the credit unless your circumstances are unusual.
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State Residency: Which State Claims You
When you move back, some state is going to start taxing you. Which one depends on where you establish domicile, and for returning expats, this is both a planning opportunity and a trap.
If you left from a "sticky" state -- California, Virginia, New Mexico, or South Carolina are the usual suspects -- that state may argue you never broke domicile. California in particular is aggressive: unless you can show you established a new domicile elsewhere (not just that you were absent), the Franchise Tax Board may treat you as a California resident for the entire time you were abroad. Virginia, New Mexico, and South Carolina have similarly expansive definitions of domicile that do not automatically end with physical departure.
For states that do release you, the question on return is where you land. Nine states have no income tax (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming). If you have flexibility in where you establish residency, the difference between landing in California (top rate 13.3%) versus Texas (0%) on a $200,000 income is roughly $17,000 per year.
Most states use either a domicile test (where you intend to make your permanent home) or a statutory residency test (typically the 183-day rule). Moving back on July 1 versus January 1 can mean the difference between being a part-year resident and a full-year resident, which matters for states that tax worldwide income once residency is established.
Timing Your Return for Tax Optimization
The calendar year in which you return shapes your tax picture in multiple ways. A mid-year return gives you partial-year treatment for the Foreign Earned Income Exclusion, state residency, and potentially lower overall tax liability.
Return early in the year if you want to maximize the time available for the Streamlined Foreign Offshore filing (where penalties are waived) before you re-establish US residency. It also gives you time to set up estimated tax payments for the remainder of the year.
Return later in the year if you want to maximize the prorated FEIE for that tax year and minimize state tax exposure. A December 15 return means roughly 15 days of state residency versus a full year.
The tradeoff is real: optimizing for the FEIE proration might conflict with optimizing for state residency or for Streamlined filing. A CPA who works with repatriating expats can model the specific scenarios.
Foreign pensions are one of the most complex areas in international tax. The IRS may treat your foreign pension as a foreign trust, requiring Form 3520 (annual return to report transactions with foreign trusts) and Form 3520-A (annual information return of the trust itself). If the pension holds foreign mutual funds, those funds may qualify as Passive Foreign Investment Companies (PFICs), triggering Form 8621 and punitive tax treatment.
Revenue Procedure 2020-17 provides limited relief for certain foreign retirement plans that meet specific criteria, exempting them from Form 3520 and 3520-A filing. But the exemption requirements are narrow, and many common foreign pension structures do not qualify.
When you return, you need to determine whether to leave the pension abroad or attempt to transfer it. Tax treaty provisions may affect how distributions are taxed. Some treaties (notably the US-UK treaty) allow favorable treatment of pension distributions; others provide little relief. The decision to draw down or transfer a foreign pension before or after returning involves treaty analysis, PFIC exposure, and the interaction with US Social Security totalization agreements.
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Selling a home or investment property abroad before (or after) returning to the US creates a layered tax problem. Three separate tax consequences can arise from a single sale:
Capital gain on the property itself. You report the gain on your US return, converting all amounts to US dollars using the exchange rate on the date of each transaction (purchase date and sale date). If you lived in the home as your primary residence for two of the last five years, the Section 121 exclusion applies -- up to $250,000 for single filers or $500,000 for married filing jointly. This works the same as selling a US home.
Currency gain under Section 988. This is where most people get surprised. If the foreign currency strengthened against the dollar between the time you purchased the property and the time you sold it, the IRS treats the currency gain as a separate taxable event -- and it is taxed as ordinary income, not capital gain. A property in London purchased for 300,000 GBP when the pound was at $1.30 and sold for 300,000 GBP when the pound is at $1.50 produces zero gain in pound terms but a $60,000 currency gain in dollar terms, taxed at your ordinary income rate.
Depreciation recapture under Section 1250. If the property was rented, you must recapture prior depreciation deductions at up to 25%, regardless of your actual tax bracket.
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Foreign Bank Account Closure Planning
Closing foreign bank accounts before or after your return requires coordination. Do not close all accounts immediately -- you may need them for pending transactions, tax payments to the foreign government, or pension distributions that cannot be rerouted overnight.
Plan the closure sequence: identify which accounts you will need for ongoing obligations (foreign tax filings, pension access, rental income from property you have not yet sold) and which can be closed immediately. For each account you keep open, you remain subject to FBAR and potentially Form 8938 reporting for every year the account exists. Factor in the administrative burden of continued reporting when deciding how quickly to consolidate.
Wire transfers of large balances into US accounts may trigger Currency Transaction Reports by your US bank (for transactions over $10,000) and potentially Bank Secrecy Act scrutiny if the pattern appears structured. This is not a problem if you are moving legitimate funds -- but document the source of funds and keep records of the foreign account statements showing the balance history.
If there is any chance you might work abroad again within five years, do not formally revoke your Section 911 election for the Foreign Earned Income Exclusion. Simply not qualifying in years you live domestically preserves your ability to re-elect without triggering the five-year lockout under IRC 911(e)(2).
Not filing FBARs -- ever. The single most common and most expensive mistake. Many expats do not know the FBAR exists. By the time they learn about it, they have years of unfiled reports and potential penalties that dwarf their actual tax liability.
Assuming foreign income is tax-free. The US taxes worldwide income regardless of where you live. The Foreign Earned Income Exclusion reduces the bite, but it does not eliminate US filing obligations. And once you return, the exclusion disappears entirely for income earned domestically.
Choosing the wrong state. Landing in a high-tax state when you had the option to establish domicile in a no-income-tax state is an annual cost that compounds for as long as you live there. This decision is difficult to undo once made.
Ignoring foreign pension reporting. The Form 3520/3520-A penalties for failure to file are 35% of the gross reportable amount for the trust and $10,000 per form, respectively. These penalties can exceed the tax owed on the pension income itself.
Missing the Streamlined filing window. Once you are back in the US and living domestically, you shift from the penalty-free Streamlined Foreign Offshore Procedures to the 5% penalty Streamlined Domestic Offshore Procedures. Filing before your return saves real money.