No—not as stated: if your California income is community and he is a full-year California nonresident, his 50% is California-source, so you must file one joint Form 540NR; foreign investment income is community only when the underlying investment is community property.
“My husband and I are filing our federal return jointly using the First-Year-Choice and 6013(g) elections. We are filing state returns separately. I live in California (a community property state) and he lives in a common law state. When I file as Married Filing Separately in CA, do I report 50% of my CA income plus 100% of my foreign investment income, while he reports 50% of my income on a CA 540NR and 100% of his worldwide income on his own state return? Is my foreign income also considered community property?”
Summary
The contradiction is fixable before filing: the same 50% allocation that would put your California income on his 540NR usually removes your right to file separate California returns. Once each item is classified, the form route is mechanical.
Your California route depends on whether your income gives your husband any and whether the military exception applies.
If you were domiciled in California when you earned compensation, or the income came from community property, it is and each spouse owns half. His half is California-source, so the no-source exception fails. Because the federal return is joint and one spouse is a California nonresident, file one joint , not separate California returns. Schedule CA (540NR) uses joint worldwide amounts in its total-income columns; its California column includes your resident income from all sources and only his California-source amounts.
If the California income is your income, your husband was a full-year California nonresident, and he had no other California-source income, the exception permits separate California filing. You file Form 540 as married filing separately and report all your separate income plus half of true community income. He does not report your separate income; putting half of it on his 540NR would contradict its separate classification.
If either spouse was an active member of the U.S. armed forces or an auxiliary military branch during 2025, California permits separate returns even when the no-source exception fails. The resident uses Form 540; a nonresident with California-source income uses Form 540NR, enters hypothetical separate-federal amounts in Schedule CA column A, and attaches a statement showing the split.
Different addresses do not decide this: the income-earner's , not the mailing address, controls the community-income division.
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Next steps
Classify ownership first, then select and complete the only California filing route the facts permit.
Before choosing a form
Build an income-ownership worksheet
For each item, mark the owner, the income-earner's , and whether the asset is community or . California-domiciled service compensation and income from community property are split 50/50; separate-property income generally stays 100% with its owner. Ordinary interest, dividends, and stock or bond gains generally follow the owner's residence for sourcing, subject to a California-business-use exception.
Requirements
After classification
Choose the California filing route
If your husband owns any half of California-source community income, the nonresident/no-source exception fails: file one joint . If all California income is yours separately and he was a full-year nonresident with no other California-source income, use the exception and file your Form 540 as married filing separately. Active-duty military status supplies the other separate-return exception.
Requirements
On the selected form
Complete the California schedule
For the joint 540NR route, Schedule CA (540NR) starts with joint federal/worldwide amounts in columns A through D; column E includes your worldwide share as the resident and only his California-source share as the nonresident. If a separate-return exception applies and a spouse files 540NR, column A uses that spouse's hypothetical separate-federal amounts, and the return must attach a statement showing how income and expenses were split.
Requirements
By October 15, 2026
File the 2025 return and pay
The automatic filing extension requires no application and ends October 15, 2026. Payment was due April 15, 2026; pay any balance immediately because the 2025 instructions impose a 5% late-payment penalty plus 0.5% for each month or part-month and mandatory interest.
Requirements
Legal sources
This answer rests on California Franchise Tax Board instructions and Publication 1031, the California Family Code, and IRS Publication 519.
2025 Form 540 Instructions
A 50% community share gives both spouses California-source income and defeats the nonresident-spouse exception.
Filing Status — Community Property States
If the spouse earning the California source income is domiciled in a community property state, community income will be split equally between the spouses. Both spouses will have California source income and they will not qualify for the nonresident spouse exception.
2025 Form 540 Instructions
A joint federal return involving a California nonresident spouse uses Form 540NR.
Instructions for Form 540, Filing Status
If you filed a joint tax return and either you or your spouse/RDP was a nonresident for 2025, you must file Form 540NR, California Nonresident or Part-Year Resident Income Tax Return.
FTB Publication 1031
Domicile determines characterization; separate returns divide community income 50/50 and assign separate income to its owner.
page 11
The domicile of the spouse/RDP earning the income determines the division of income between spouses/RDPs when separate returns are filed. Each spouse/RDP must follow the laws in his or her state of domicile to determine whether income is separate or community. When separate returns are filed, you and your spouse/RDP must each report half of the community income plus all of your separate income on your return.
FTB Publication 1031
Income from community assets and compensation earned while domiciled in a community-property state are community income.
page 11
Income generated from community property is community income. Community income also includes compensation for services if the spouse/RDP earning the compensation is domiciled in a community property state. Divide the community income equally between you and your spouse/RDP when separate returns are filed.
California Family Code § 760
Property abroad can still be community property if acquired during marriage while domiciled in California.
760
Except as otherwise provided by statute, all property, real or personal, wherever situated, acquired by a married person during the marriage while domiciled in this state is community property.
California Family Code § 770
Premarital and gift or inheritance property—and its income—are separate property.
770(a)
(a) Separate property of a married person includes all of the following: (1) All property owned by the person before marriage. (2) All property acquired by the person after marriage by gift, bequest, devise, or descent. (3) The rents, issues, and profits of the property described in this section.
2025 Schedule CA (540NR) Instructions
A permitted separate California return uses hypothetical separate-federal amounts and a split statement.
Part II, Column A — Federal Amounts
If married/RDP filing separately under either exception described in the instructions for Form 540NR, enter in column A the amounts you would have reported on a separate federal tax return. Attach a statement to the tax return showing how the income and expenses were split between you and your spouse/RDP.
2025 Schedule CA (540NR) Instructions
California taxes the resident spouse's worldwide share, but the nonresident spouse only on California-source income.
Part II, Column E — California Amounts
Full-year California resident : A resident is taxed on all income from all sources, including income from sources outside California. Full-year nonresident : A nonresident is only taxed on income derived from California sources.
FTB Publication 1031
Ordinary investment income generally follows residence, subject to the California business-use exception.
page 7
Interest and dividends generally have a source where you are a resident. Exception: Interest and dividends have a source in California if the account or security is used in a trade or business or pledged as security for a loan, the proceeds of which are used in a trade or business in California.
IRS Publication 519
The federal nonresident-spouse choice depends on year-end status, reaches worldwide income, and requires a joint election-year return.
page 13, Nonresident Spouse Treated as a Resident
If, at the end of your tax year, you are married and one spouse is a U.S. citizen or a resident alien and the other spouse is a nonresident alien, you can choose to treat the nonresident spouse as a U.S. resident. If you make this choice, you and your spouse are treated for income tax purposes as residents for your entire tax year. You are both taxed on worldwide income. You must file a joint income tax return for the year you make the choice, but you and your spouse can file joint or separate returns in later years.
FTB Personal Due Dates
The 2025 filing deadline is automatically extended to October 15, but payment was due April 15.
Personal income tax
The due date to file your California state tax return and pay any balance due is April 15, 2026. However, California grants an automatic extension until October 15, 2026 to file your return, although your payment is still due by April 15, 2026.
These are the official rules in the cited 2024 and 2025 tax materials as published or effective on the dates shown; tax rules and forms change.
This is general information about official processes, not legal advice, and SettleKit is not a law firm.
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