For tax year 2025, the minimum income to file taxes in California is $22,941 in gross income or $18,353 in adjusted gross income if you’re single, under 65, and have no dependents. Hit either number and you must file. The threshold climbs with age and dependents, drops sharply if someone else claims you, and several situations force you to file no matter how little you earned.
California applies two tests side by side. Gross income is everything you received before deductions. Adjusted gross income starts with your federal AGI and layers on California-specific adjustments. Whichever threshold you cross first triggers the filing requirement.
2025 Filing Thresholds by Status, Age, and Dependents
The Franchise Tax Board sets thresholds based on your filing status, your age on December 31, 2025, and how many dependents you claim. If your 65th birthday is January 1, 2026, California treats you as 65 on December 31, 2025, so you get the higher senior thresholds.1Franchise Tax Board. 2025 Instructions for Form 540 Personal Income Tax Booklet
Single or Head of Household
Gross income thresholds:
- Under 65, no dependents: $22,941
- Under 65, one dependent: $38,774
- Under 65, two or more dependents: $50,649
- 65 or older, no dependents: $30,591
- 65 or older, one dependent: $42,466
- 65 or older, two or more dependents: $51,966
Adjusted gross income thresholds:
- Under 65, no dependents: $18,353
- Under 65, one dependent: $34,186
- Under 65, two or more dependents: $46,061
- 65 or older, no dependents: $26,003
- 65 or older, one dependent: $37,878
- 65 or older, two or more dependents: $47,378
Married or RDP Filing Jointly
Combine both spouses’ or partners’ income to check these numbers. Gross income thresholds:
- Both under 65, no dependents: $45,887
- Both under 65, one dependent: $61,720
- Both under 65, two or more dependents: $73,595
- One spouse 65 or older, no dependents: $53,537
- One spouse 65 or older, one dependent: $65,412
- One spouse 65 or older, two or more dependents: $74,912
- Both 65 or older, no dependents: $61,187
- Both 65 or older, one dependent: $73,062
- Both 65 or older, two or more dependents: $82,562
Adjusted gross income thresholds:
- Both under 65, no dependents: $36,711
- Both under 65, one dependent: $52,544
- Both under 65, two or more dependents: $64,419
- One spouse 65 or older, no dependents: $44,361
- One spouse 65 or older, one dependent: $56,236
- One spouse 65 or older, two or more dependents: $65,736
- Both 65 or older, no dependents: $52,011
- Both 65 or older, one dependent: $63,886
- Both 65 or older, two or more dependents: $73,386
Married couples filing separately still combine income to check these thresholds, and both spouses may need to file even if only one earned above the amount shown. Registered Domestic Partners follow the same rules as married couples.1Franchise Tax Board. 2025 Instructions for Form 540 Personal Income Tax Booklet2Franchise Tax Board. Registered Domestic Partner
Qualifying Surviving Spouse or RDP
This status requires at least one dependent. Gross income thresholds with one dependent are $38,774 (under 65) or $42,466 (65 or older). With two or more dependents, they rise to $50,649 and $51,966. AGI thresholds at each dependent level match the single-filer figures above.1Franchise Tax Board. 2025 Instructions for Form 540 Personal Income Tax Booklet
If Someone Else Claims You as a Dependent
Your threshold drops to your California standard deduction. For 2025, the dependent standard deduction starts at a minimum of $1,300 and caps at $5,706 for single or married filing separately, or $11,412 for married filing jointly, head of household, or qualifying surviving spouse. The exact figure depends on your earned income, so a part-time job or a summer paycheck can be enough to put you over the line.3Franchise Tax Board. Deductions
When You Must File Even Below These Amounts
Income thresholds are only half the picture. Any of the following tax liabilities triggers a filing requirement on its own, regardless of what you earned in 2025:
- Alternative minimum tax
- Tax on a lump-sum distribution
- Tax on a qualified retirement plan or IRA, including early distributions and excess contributions
- Kiddie tax, which applies to children under 19 (or full-time students under 24) whose unearned income from interest, dividends, or capital gains exceeds $2,700
- Recapture taxes tied to credits you claimed in earlier years
If any of those apply, file.1Franchise Tax Board. 2025 Instructions for Form 540 Personal Income Tax Booklet
Which Income Counts Depends on Residency
The thresholds don’t shift by residency, but the income you measure against them does.
A full-year resident counts worldwide income from every source. California considers you a resident if you’re in the state for more than a temporary or transitory purpose, and you can only have one domicile at a time.4Franchise Tax Board. Residents
A part-year resident counts all worldwide income from the months lived in California, plus California-sourced income from the rest of the year. A nonresident counts only California-sourced income, which includes wages for work physically performed in the state, rent from California property, and business income earned here. Residents file Form 540; part-year residents and nonresidents file Form 540NR.5Franchise Tax Board. Part-Year Resident and Nonresident6Franchise Tax Board. What Form You Should File
Why to File Even When You Don’t Have To
Falling below the thresholds doesn’t mean you should skip filing. If your employer withheld state income tax and your actual liability is zero, filing a return is the only way to get that money back. California also offers refundable credits that pay out cash whether you owe tax or not.
California Earned Income Tax Credit
The CalEITC is refundable and goes to workers with earned income between $1 and $32,900 for 2025. The maximum credit with no qualifying children is $302, and the amount grows with the number of children. You need a valid Social Security number or ITIN and must have lived in California for more than half the year.7Franchise Tax Board. Eligibility and Credit Information CalEITC
Young Child Tax Credit
Families who qualify for CalEITC and have at least one child under six at year-end can claim up to $1,189 per return. The income ceiling matches CalEITC at $32,900, and the credit is fully refundable.8Franchise Tax Board. Young Child Tax Credit
Foster Youth Tax Credit
Current and former foster youth ages 18 through 25 who were in California foster care at age 13 or older can claim up to $1,189 per eligible person for 2025, doubling to $2,378 if both spouses qualify. You also need to qualify for CalEITC.9California Department of Social Services. Foster Youth Tax Credit
A Note on the Health Coverage Penalty
California requires residents and their dependents to maintain qualifying health coverage, and a gap without an exemption normally generates an Individual Shared Responsibility Penalty on your return. If your income is below the filing threshold and you wouldn’t otherwise have to file, you’re automatically exempt from the penalty, and you don’t need to file a return just to report that exemption.10Franchise Tax Board. 2024 Instructions for Form FTB 3853