Expat State Income Tax: Which States Still Collect

Most guides for US expats stop at federal taxes — the Foreign Earned Income Exclusion, FBAR, Form 2555 — and treat the conversation as settled. California, New York, Virginia, and North Carolina don't. Each can and does tax Americans living abroad, sometimes for years after they've left, on income earned entirely outside the United States. In California, keeping a home where your spouse lives while you work abroad has been ruled sufficient to maintain full state residency. In New York, holding an apartment your parents occupy — and visiting 184 or more days — can generate a full-year state tax bill at rates above 10%.

Federal law does not automatically sever state tax ties when you leave the country. And while the Foreign Earned Income Exclusion can eliminate federal income tax for many expats, most states do not recognize it. An expat who owes zero federal income tax on $130,000 in foreign earnings may still owe California $13,000 on the same income.

Domicile: The Rule That Follows You Abroad

Almost every US state taxes its domiciliaries on worldwide income — including income earned entirely abroad. Domicile is your permanent, intended home: the place you plan to return to after any absence. You can only have one domicile at a time, and it persists until you affirmatively establish a new one somewhere else. Moving abroad without establishing a new domicile simply means your old state domicile travels with you.

Some states — notably New York and South Carolina — also impose a "statutory residency" test. A statutory resident is someone who is not domiciled in the state but maintains a permanent place of abode there and spends enough days in the state (typically 184 or more) to trigger full residency for tax purposes. This creates a trap for expats who keep a home in the state while living abroad and return for extended visits.

Day-counting rules in most states are strict: any part of a calendar day spent in the state counts as a full day. A 6-hour layover with no activity in New York does not count; but flying in the night before a doctor's appointment and flying out that afternoon counts as two separate days.

California: The Hardest State to Leave

California's Franchise Tax Board (FTB) is the most aggressive state tax authority in the US for pursuing former residents living abroad. California imposes a 13.3% top marginal income tax rate on income over $1 million. For most expats with incomes in the $100,000–$300,000 range, the effective state rate is 9.3%–12.3%.

The FTB presumes that anyone who moves abroad intends to return to California. The burden of proof is on the taxpayer to demonstrate that the move was permanent and that California domicile was abandoned. Auditors use cell phone records, credit card statements, social media geolocation, and airline records to build a picture of where someone actually spent their time.

California's 546-Day Safe Harbor — and Its Limits

California Revenue and Taxation Code §17014(d) provides a narrow safe harbor for California residents working abroad under an employment contract. To qualify, all four conditions must be met simultaneously:

• You are outside California under an employment-related contract for at least 546 consecutive days (approximately 18 months)
• You spend 45 days or fewer in California per taxable year during the absence
• Your intangible income (dividends, interest, capital gains) does not exceed $200,000 in any tax year during the period
• The principal purpose of the move is not tax avoidance

The safe harbor has critical limits most expats miss. It does not change your domicile — it temporarily suspends California resident status only for the duration of the qualifying contract. Retirees, freelancers, digital nomads, founders, and remote employees who choose to work from abroad generally cannot use it. And if you return to California within two years, the FTB scrutinizes whether the original departure was genuine or a tax-driven arrangement.

Expats who do not meet the safe harbor criteria must demonstrate actual abandonment of California domicile — a much higher bar that requires physical, financial, and personal ties to clearly outweigh California connections.

What the FTB Actually Looks At

The FTB applies a "closest contacts" test: California connections are weighed against connections to the new location. The most decisive factors auditors examine:

• Location of spouse and children — in *Appeal of Hoog* (2017), a California Board of Equalization case, a taxpayer who spent just 30 days per year in California while working in China was ruled a California resident because his wife and child remained in the family home there
• Whether you own or rent a home in California — keeping a home in California, even one you rarely visit, carries heavy weight
• California driver's license — surrendering it is one of the clearest signals of departure intent
• Voter registration, bank accounts, investment accounts — all California-registered accounts signal continued domicile
• Permanence of foreign residency — a short-term work visa or tourist entry without permanent foreign residency permit signals intent to return

Source: California FTB Publication 1031 (2024) — guidelines for determining residency for California income tax purposes.

New York: Two Ways to Owe State Tax Abroad

New York imposes state income tax through two separate mechanisms — domicile (up to 10.9%) and statutory residency — and an expat can trigger either or both. New York City adds a further local income tax of up to 3.876% for NYC residents, bringing the combined maximum to nearly 14.8%.

Statutory Residency: The Apartment Trap

New York's statutory residency rule applies when a taxpayer who is not domiciled in New York maintains a "permanent place of abode" (PPA) in New York and spends more than 183 days in the state during the tax year (184 or more full days). A PPA is any dwelling suitable for year-round use — an owned apartment, a rented unit, a corporate-leased flat, or even a family member's home that is available to you without restriction.

The landmark case Gaied v. New York State Tax Appeals Tribunal (2014) established that a PPA requires the taxpayer to actually use the property as their own living quarters. In that case, the NY Court of Appeals ruled a taxpayer was not a statutory resident despite owning a condo his parents used, because he personally stayed in hotels when visiting New York. Keeping an apartment that you do use — even for business visits — while spending 184 or more days in New York generates full statutory residency, even if your domicile is Florida.

New York's 548-Day Rule

New York Tax Law §605(b)(1)(B) provides a safe harbor for NY-domiciled individuals spending extended time abroad. To qualify:

• You must be present in a foreign country for at least 450 days during any 548 consecutive-day period
• You (and your spouse and minor children) must spend 90 days or fewer in New York during that same 548-day period
• During the partial tax years at the start and end of the 548-day period, your New York presence must not exceed a proportional share of the 90-day limit

Like California's safe harbor, the 548-day rule provides nonresident status only for the qualifying period — it does not change your New York domicile.

Source: New York Department of Taxation and Finance — Resident Definitions.

Virginia, North Carolina, and South Carolina

Virginia, North Carolina, and South Carolina use pure domicile tests with no state-equivalent FEIE and no broad safe harbor for expats. All three states tax worldwide income of domiciliaries. Moving directly abroad without first establishing a new domicile in another state leaves these state obligations fully intact.

State	Top Income Tax Rate	Residency Test	Safe Harbor?
California	13.3%	Domicile + closest-contacts test	Narrow (employment contract only)
New York	10.9% (+ 3.876% NYC)	Domicile OR statutory (184 days + PPA)	548-day rule
Virginia	5.75%	Domicile only (pure)	None
North Carolina	4.25% (2025); 3.99% (2026)	Domicile + 183-day physical presence	None
South Carolina	6.2%	Domicile OR 183-day + PPA	None

Virginia's domicile test is particularly strict for expats with government or defense contractor backgrounds — the state has significant experience auditing overseas residents who claim they left. Virginia requires establishing domicile in another jurisdiction (not just departing for a foreign country) to sever Virginia tax obligations. Moving from Virginia directly to Portugal without first establishing domicile in Texas or Florida, for example, leaves Virginia domicile intact.

North Carolina's flat rate is declining — from 4.25% in 2025 to 3.99% in 2026, with further scheduled reductions toward 2.99% by 2028 — but the state taxes all worldwide income of NC domiciliaries regardless of where it was earned.

The No-Tax State Strategy

The most reliable way to eliminate state income tax liability while living abroad is to establish domicile in a state with no broad income tax before departing. Nine states have no income tax on wages and ordinary income: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming.

Note: Washington State imposes a 7% capital gains tax on long-term gains above $262,000 (2024), making it less attractive for high-net-worth expats with appreciated assets. New Hampshire eliminated its tax on investment income starting in 2025 and is now fully income-tax free.

Florida and South Dakota are the most commonly chosen by expats because both allow establishment of domicile without requiring months of physical presence. South Dakota, in particular, permits vehicle registration, driver's license issuance, and voter registration based on a single day of physical presence — making it practical for expats who cannot spend significant time in the US.

Domicile change checklist — what is actually required to survive an audit by the state you left:

• Obtain a driver's license in the new state and surrender the old one — this is the single most weighted piece of evidence
• Register to vote in the new state and cancel registration in the old state
• Secure a physical address in the new state (own, rent, or use a registered physical address service)
• Update your address with the IRS (Form 8822), Social Security Administration, employers, banks, and brokerage accounts
• Re-register any vehicles in the new state
• File a part-year resident return in your old state for the year of departure, showing the specific date residency ended
• Sell or formally rent out your old home — leaving it vacant while abroad is a significant audit risk; leaving family members in it is nearly always fatal to a nonresidency claim
• Move significant personal property (furniture, artwork, valuables) to the new state or abroad

The FEIE Does Not Clear Your State Tax Bill

Most states do not recognize the federal Foreign Earned Income Exclusion (Form 2555) as a deduction from state taxable income. California, New York, and Virginia all require you to add back excluded federal income when calculating state taxable income.

The practical consequence is significant. An expat who earns $130,000 abroad, qualifies for the 2025 FEIE limit of $130,000 (fully excluding that income from federal tax), and remains domiciled in California still owes California income tax on the full $130,000 — approximately $10,200 to $11,700 depending on filing status and deductions. The federal exclusion provides zero relief from California's claim.

The FEIE vs. Foreign Tax Credit comparison covers the federal-level trade-offs between the two approaches; state tax treatment is an independent variable that runs on top of whichever federal method you choose.

A handful of states — those whose tax codes "piggyback" on federal adjusted gross income — do pass through the FEIE benefit. But California, New York, and Virginia do not. If state tax liability is a factor in your relocation decision, verify your specific state's treatment before relying on the FEIE for state-level relief.

Social Security and State Income Tax

Nine states still tax Social Security benefits as of 2025: Colorado, Connecticut, Minnesota, Montana, New Mexico, Rhode Island, Utah, Vermont, and West Virginia (West Virginia is phasing out the tax, with full elimination starting in tax year 2026). If you are domiciled in one of these states and receive Social Security benefits while living abroad, those benefits remain subject to state taxation.

California, New York, and Virginia do not tax Social Security benefits at the state level — a notable exception for expats who remain domiciled in those states. For expats receiving Social Security, establishing domicile in a no-income-tax state also eliminates state-level taxation of Social Security if you move from a state in the list above.

Military Members and Spouses: Federal Protection

The Servicemembers Civil Relief Act (SCRA) and the Military Spouses Residency Relief Act (MSRRA) provide significant state tax protection for military families stationed abroad.

Under the MSRRA as expanded by Public Law 114-26 (2015), military spouses may choose any one of three options for their state of legal residence:

• The servicemember's state of domicile
• The spouse's own state of domicile
• The servicemember's permanent duty station state

A military spouse who was previously domiciled in California and is now stationed in Germany with their partner can elect a no-income-tax state (Florida, Texas, South Dakota) as their state of legal residence, paying zero state income tax on their worldwide income during the assignment. The SCRA provides parallel protection for servicemembers' military pay, which is taxable only in their state of domicile regardless of where they are stationed.

Common Mistakes That Fail Domicile Changes

The failure patterns are consistent across California and New York audits:

1. Family stays in the old home. Leaving a spouse or children in a California or Virginia home — or maintaining a New York apartment the family uses — is the single most common fatal fact in domicile change audits. Courts and state agencies treat family location as a primary indicator of where you truly live.
2. Keeping the old driver's license. Auditors treat a California or New York license as the clearest single indicator of continued domicile. Expats who move their licenses to a new state but never formally cancel the prior-state license create ambiguity that auditors resolve against the taxpayer.
3. Moving directly abroad without a US domicile stop. If you leave California for Mexico, or New York for Portugal, without first establishing domicile in Florida or Texas, your departure looks like a temporary absence rather than a permanent relocation. The new foreign country residence is treated as temporary (a work assignment, an adventure, a sabbatical) rather than your permanent home.
4. Never filing a part-year return for the departure year. If you never file a final California or New York part-year return, the state has no record of when residency ended. Statutes of limitations generally do not run when no return is filed, meaning assessments can be issued years or decades later.
5. Retaining professional registrations in the old state. A California bar license, a New York medical license, or a Virginia contractor registration all signal the possibility of returning to practice there — and therefore the possibility of a California or Virginia domicile.

Data Notes

State income tax rates and residency rules were checked in June 2026. California FTB domicile rules are in FTB Publication 1031 (2024). New York residency definitions are at tax.ny.gov. The federal FEIE is described at irs.gov/individuals/international-taxpayers/foreign-earned-income-exclusion. MSRRA protections for military spouses are at militaryonesource.mil. State tax rules change — verify current rates and thresholds with your state's department of revenue before filing.

The Bottom Line

Leaving the United States does not automatically end your state tax obligation. For high-rate states like California and New York, that obligation can persist for years — generating annual state tax bills on income earned abroad that was never touched by federal tax. The fix is not complicated: establish domicile in a no-income-tax state before or when you leave, document it thoroughly, and file a final part-year return for the departure year. What makes it hard is the documentation threshold for proving the change is genuine, and the specificity of what auditors look for.

For the banking and tax account setup that supports a clean state tax break, the expat banking and tax guide covers how to structure US accounts and addresses for the transition year.

Disclaimer: This article is for general informational purposes only and does not constitute legal, tax, or financial advice. State tax rules change frequently and vary by individual circumstances. Consult a qualified international tax attorney or CPA familiar with your specific state before making any domicile or residency decisions.