If you live outside California but do some of your work inside the state, you owe California SDI tax on the wages you earn during that in-state work, and nothing on the rest. For 2026, the rate is 1.3% of those California-source wages, with no cap on the amount of pay that can be taxed.1Employment Development Department. Contribution Rates, Withholding Schedules, and Meals and Lodging Values Where your employer is based doesn’t matter. Where you sit while doing the job does. A non-resident who never performs work in California generally owes zero SDI, even on a paycheck from a California company.
When Physical Presence Triggers SDI
California’s Employment Development Department runs a four-part test, applied in order, to decide whether a worker’s wages fall under California payroll taxes: localization of the work, base of operations, place of direction and control, and employee residence.2Employment Development Department. Information Sheet – Multistate Employment (DE 231D) You stop at the first test that produces an answer.
For a non-resident, the practical result almost always comes down to this: if you perform any services inside California, the wages tied to that in-state work are subject to California payroll taxes, including SDI. If every hour of your work happens outside the state, California can’t reach your wages even when your employer is headquartered there.2Employment Development Department. Information Sheet – Multistate Employment (DE 231D)
There is no minimum-day threshold. Fly into the San Francisco office for a week of meetings, and SDI applies to the wages attributable to that week from day one. The dividing line is physical work in the state, not residency and not the employer’s address.
The 2026 Rate and the End of the Wage Cap
The 2026 SDI withholding rate is 1.3% of taxable wages, up from 1.2% in 2025.1Employment Development Department. Contribution Rates, Withholding Schedules, and Meals and Lodging Values The EDD director sets the rate each year under a statutory formula tied to the Disability Fund’s balance, and the rate can range by law between 0.1% and 1.5%.3California Legislative Information. California Unemployment Insurance Code 984
The bigger change for high earners took effect on January 1, 2024. Senate Bill 951 eliminated the annual taxable wage ceiling. Before that, SDI applied only up to a capped amount (for example, $153,164 in 2023), and wages above the cap were exempt. The 1.3% rate now applies to every dollar of California-source wages, with no upper limit.4Employment Development Department. Contribution Rates and Benefit Amounts
For a non-resident, the math is simple once you know your California days. Say you earn $400,000 a year and spend 5% of your working time in California. The 1.3% rate applies to the $20,000 in California-source wages, producing an SDI bill of $260. Under the old cap, a worker in this position might have owed nothing once total wages crossed the ceiling. That option is gone for any contributions made after 2023.
What Should Appear on Your W-2
Your employer is legally responsible for withholding the correct SDI amount from your California-source wages, which means tracking the days or hours you physically work in California and applying 1.3% only to those wages. Employers that fail to withhold or remit SDI face a 15% penalty on the delinquent amount.5Employment Development Department. Penalty Reference Chart
At year-end, check three boxes on your W-2:
- Box 14 should show the SDI withheld, usually labeled “CASDI.” If your employer runs an approved Voluntary Plan instead of the state program, the label will read “VPDI.”6California State Controller’s Office. Form W-2 Wage and Tax Statement FAQs
- Box 16 should show your California-source wages, not your total nationwide wages. This is a common error for non-residents and causes problems on the California return.
- Box 17 shows any California personal income tax withheld. That is separate from SDI.
If Box 16 looks too high (your full annual salary rather than just your California portion), raise it with payroll before you file.
Collecting SDI Benefits as a Non-Resident
What many non-residents miss: if you paid in, you can collect. Residency has no bearing on eligibility for California Disability Insurance or Paid Family Leave benefits.7Employment Development Department. Disability Insurance – Eligibility FAQs8Employment Development Department. FAQs – Paid Family Leave Eligibility If SDI was deducted from your paychecks for California work, you’re in the eligible pool.
To qualify for disability benefits, you need at least $300 in wages during your base period (a 12-month window roughly 5 to 18 months before your claim starts) with SDI deducted.9Employment Development Department. Disability Insurance Benefit Payment Amounts The program replaces roughly 70% to 90% of your weekly wages depending on income, with a 2026 maximum of $1,765 per week.10Employment Development Department. Maximum Weekly Benefit Amount 2026 Payments go out by direct deposit, debit card, or mailed check regardless of where you live.11Employment Development Department. Your Benefit Payment Options
One snag catches a lot of out-of-state claimants. The EDD’s online physician certification system requires a license issued through the California Department of Consumer Affairs. A doctor licensed only in another state must first call the EDD at 1-855-342-3645 to register before they can submit your medical certification.12Employment Development Department. Certify or Extend Claims – Basics for Physicians/Practitioners Flag this to your doctor early. It can delay a claim by weeks if it’s left until the certification is actually due.
Filing a California Return
Non-residents with California-source income generally file Form 540NR, reporting only the income sourced to California. Two reminders worth repeating because they trip people up:
SDI is not a credit against California income tax. The number in Box 14 does not reduce what you owe on the 540NR. The number in Box 17, your California PIT withheld, is what counts as a payment.
And the old excess-SDI refund is gone. Before 2024, workers whose combined SDI deductions from multiple employers exceeded the annual wage cap could reclaim the excess on their tax return. Since SB 951 removed the cap, that line on the 540NR has been removed and marked “reserved for future use.”13Franchise Tax Board. 2025 540NR Booklet There is no excess SDI to reclaim for contributions made after 2023.
Fixing Incorrect SDI Withholding
If your employer withheld SDI on wages you didn’t earn in California (for example, the 1.3% was applied to your entire salary rather than just your California days), start with payroll. Ask them to correct the withholding and issue an adjusted W-2. Most payroll errors end here.
If the employer won’t fix it and you aren’t required to file a California return, file Form DE 1964, the Claim for Refund of Excess California State Disability Insurance Deductions, directly with the EDD. Attach copies of your W-2s and mail it to the EDD’s Special Processes Group in Sacramento. The deadline is three years after the end of the calendar year in which the excess deductions were taken.14Employment Development Department. Claim for Refund of Excess California State Disability Insurance Deductions
If you are required to file a California return, the EDD expects you to pursue the refund through the Franchise Tax Board on your 540NR, not through a separate DE 1964. Filing with the wrong agency will delay the refund or get the claim rejected.
Who’s Exempt
Most California workers are covered, but a few categories are not. Employees of churches and religious orders recognized by the IRS are not subject to SDI withholding, though their wages remain subject to California personal income tax.15Employment Development Department. Church and Religious Order Employers Government employees covered by other disability programs and certain school employees may also be exempt. If you’re a non-resident performing excluded work in California, SDI shouldn’t come out of your paycheck at all.