What conditions apply to California’s employment contract safe harbor?

California’s safe harbor concerns a domiciliary outside the state under an employment-related contract for at least 546 consecutive days, with separate contracts not combined. Exceptions include intangible income exceeding $200,000 in a contract year or an absence principally intended to avoid personal income tax. Return visits totaling no more than 45 days per taxable year are treated as temporary.

What evidence should you gather before taking a nonresident position?

Prepare a departure chronology describing homes, employment, family arrangements and planned visits. California focuses on the strength of connections rather than their number, while New York requires clear and convincing evidence of a domicile change. Give your CPA supporting documents and identify remaining state income-sourcing questions instead of relying on an overseas mailing address.

Leaving Your State Behind: How to Break Tax Residency in California, New York and Other High-Tax States. FNC

Q: Can New York treat you as resident after you establish domicile elsewhere?

New York’s statutory-residency test can apply if you maintain a permanent place of abode in the state for substantially all the year and spend 184 days or more there. Any part of a day counts. Review your retained home and visits separately from the evidence that you abandoned New York domicile and established another.

In short

If you leave California or New York for another country, moving alone does not settle your state residency because their 2025 rules require separate reviews of domicile, ties and applicable exceptions. Your federal tax treatment does not determine that state position. Assemble evidence of homes, work, family and visits for your CPA, and keep remaining income-sourcing questions separate; other states require their own current analysis.

Moving overseas doesn't settle whether California or New York still considers you resident. Your US worldwide income-tax obligations generally continue as a citizen abroad, and your former state's residency analysis is a separate issue. ¹

This is general information. Your CPA and counsel confirm the details for your case.

California and New York have distinct tests. The rules below apply to those states; other high-tax states require their own analysis. If you are leaving another state, confirm its current requirements before treating your departure as complete. A foreign destination doesn't create a common state-tax exit rule.

California looks at your circumstances and connections

California's 2025 Publication 1031 defines a resident as someone present for more than a temporary or transitory purpose, or domiciled in California but absent for a temporary or transitory purpose. Residents are taxed on income from all sources; nonresidents on California-source income. Becoming nonresident therefore doesn't automatically settle every California income question. ²

The publication describes a closest-connections analysis. Factors include where you spend time, where your spouse and children live, your principal home, licences, voter registration, bank accounts and professional relationships. It says the strength of ties controls, rather than the number. Give your CPA a truthful account of the important connections instead of collecting minor changes as if they automatically outweigh everything else. ²

California also presumes residency in a taxable year when you spend more than nine months in the state, under the 2025 rules. Track actual time alongside the explanation of your move. A calendar and a narrative answer different questions, and your adviser needs both. ²

California's employment-contract safe harbor has conditions

The 2025 publication describes a safe harbor for a California domiciliary outside the state under an employment-related contract for at least 546 consecutive days. Separate contracts can't be combined to reach that period. The rule also has exceptions where intangible income exceeds $200,000 in a contract year or the principal purpose of the absence is avoiding personal income tax. ²

Return visits totaling no more than 45 days per taxable year are treated as temporary under that safe harbor. An accompanying spouse or registered domestic partner can also qualify. Read the complete conditions against the contract itself. Quoting “546 days” without the exceptions doesn't establish that your arrangement qualifies. ²

New York separates domicile from statutory residency

New York says domicile doesn't change until you show, through clear and convincing evidence, that you abandoned your New York domicile and established a new one. Filing a certificate of domicile or registering to vote somewhere else isn't enough on its own. Explain the actual change in your life, with the documents that support it. ³

Even if you're domiciled elsewhere, New York's statutory-residency test can apply when you maintain a permanent place of abode in the state for substantially all the year and spend 184 days or more there. Any part of a day counts under New York's rules. Review the abode question separately from the day count. ³

A useful departure brief should therefore identify the home you keep, the use you make of it and your visits. Avoid turning either of those questions into a simple mailing-address exercise. You want an assessment of the real arrangement before relying on a conclusion.

New York's exceptions need their own review

The 2025 IT-203 instructions describe a Group A exception for domiciliaries with no permanent place of abode in New York, a permanent place of abode outside New York all year, and thirty days or less in New York. All of those conditions belong in the review. Don't retain only the day number from the explanation. ⁴

The Group B rule uses a 548-day period, including at least 450 days in a foreign country. You, your spouse unless legally separated, and minor children must spend ninety days or less in New York during that period, with a pro-rata limit for the partial years at either end. These are the 2025 instructions, and your CPA should evaluate the family and partial-year details together. ⁴

What this means for you

A state-residency position needs a record of where you lived and what changed. Keep the California and New York tests separate from federal exclusion rules. Your departure file should support the state position you intend to take, rather than relying on a new overseas address.

What to do this month

Write a departure chronology covering your homes, work, family arrangements and planned visits. Use dates and documents rather than a broad statement that you moved.
Collect the records supporting the strongest ties you retain or have changed. A detailed account of those ties is more useful than a long list of minor administrative updates.
Check any proposed safe-harbor route against all its conditions, including contracts and family travel where relevant. Keep the actual documents beside the checklist.
Separate the residency conclusion from remaining income-sourcing questions. Record who will handle the departure-year filings and what information is still missing.

Common mistakes to avoid

Assuming federal treatment determines state residency.
Treating one changed registration as decisive evidence.
Quoting a safe-harbor day count without its conditions.
Applying another state's rule because your destination is the same.

Keep part-year income sourcing on the departure checklist. A residency conclusion doesn't by itself finish the income review. If you're leaving a state other than California or New York, use the document-gathering steps here, then apply that state's current rules to the facts.

The FNC angle

Your international residency plan should include a clear description of the domestic ties you're keeping. Bring that description to FNC's discussion of where you intend to live and operate, and to your CPA's state analysis. Organizing the two conversations around the same facts helps you examine the move before you commit to banking or company arrangements built on an untested residency assumption.

General information only, not personal tax, legal or investment advice. Rules depend on your circumstances and the applicable year. No outcome is guaranteed.

Leaving Your State Behind: How to Break Tax Residency in California, New York and Other High-Tax States