How does California’s ABC test under AB5 work in 2026?
One presumption flips every classification analysis in California. Every worker is an employee until you prove all three prongs. Prong B is the one that kills most contractor engagements.
· California, United States guide
Photo: Shen Pan via Unsplash · San Francisco, California
If you hire a California contractor the way you hire a Texas contractor, you will be reclassified. Not might. Will.
A misclassified $80,000-a-year California worker, caught after three years on a 1099, costs you $80,000 to $140,000 in back contributions, back wages, civil penalties, and PAGA exposure. Per worker. Before legal fees.
Most US employers have heard of AB5. Fewer understand that Prong B is binary, and it ends most contractor relationships before they start.
This page covers the three prongs, the narrow carve-outs, what Proposition 22 actually does, and the cost of getting it wrong.
Which worker classification test does California use?
California uses the strict ABC test. Every worker is presumed an employee. You have to prove all three prongs to keep them on a 1099.
The test came from the 2018 California Supreme Court decision in Dynamex. The Legislature codified it as Assembly Bill 5, or AB5, effective 1 January 2020.
It replaced the older Borello balancing test, which looked a lot like the federal IRS factors most other states still use. The shift was structural, not cosmetic.
Aria runs an ops contracting business out of San Diego. Under the old test, the analysis weighed factors and reached a probabilistic answer. Under ABC, she is an employee of every client she works with, until each client proves A, B, and C separately.
| Purpose | Test applied in California | Authority |
|---|---|---|
| State wage and hour (IWC Wage Orders) | ABC test | Cal. Lab Code § 2775; Dynamex (2018) |
| California unemployment insurance (UI, ETT, SDI) | ABC test | Cal. Unempl. Ins. Code § 621, § 606.5 |
| California workers’ compensation | ABC test (with right-of-control overlay for some industries) | Cal. Lab Code §§ 3351 to 3357 |
| California state income tax withholding (FTB) | ABC test for state classification; IRS common-law factors layer for federal alignment | FTB Worker Classification and AB 5 FAQs |
| Federal payroll tax (FICA, FUTA) | IRS 20-factor common-law test (federal, separate) | IRS Rev. Rul. 87-41 |
| Federal FLSA wage and hour | Economic reality test (federal, separate) | FLSA 29 U.S.C. § 201 |
The fault line is built into the structure of the test. A worker in California can be a contractor for federal payroll tax and an employee for state purposes at the same time. The federal answer usually catches up, because failing Prong B almost always fails the IRS ‘integration’ factor as well.
The Ninth Circuit upheld AB5 in 2024. The Supreme Court denied review on 13 January 2025. The legal terrain is settled for 2026.
The three prongs, in plain English
All three have to pass. Fail any one, the worker is an employee.
Prong A: the worker controls how the work gets done. Not just on paper. In day-to-day reality.
Prong B: the work sits outside the usual course of your business.
Prong C: the worker runs a real, ongoing business of the same kind. Other clients, marketing, business licence, separate insurance.
| Prong | Statutory text | What it actually tests |
|---|---|---|
| A | The worker is free from the control and direction of the hiring entity in connection with the performance of the work, both under the contract and in fact. (Cal. Lab. Code § 2775(b)(1)(A)) | Who controls how the work is done. Both the written contract AND the day-to-day reality have to read ‘independent’. |
| B | The worker performs work that is outside the usual course of the hiring entity’s business. (Cal. Lab. Code § 2775(b)(1)(B)) | The killer. A software company hiring contractor developers fails B every time, because the developers ARE the usual course of business. |
| C | The worker is customarily engaged in an independently established trade, occupation, or business of the same nature as the work performed. (Cal. Lab. Code § 2775(b)(1)(C)) | Real, ongoing, public-facing business of their own. Other clients, marketing, business licence, separate insurance. |
Prong B is the prong that ends the conversation
Sarah runs a 12-person software company out of San Francisco. She hires a contract developer in the East Bay to build her web app on a six-month engagement.
The developer sets her own hours, owns her own laptop, signs her own NDA. Prong A: clean. She has an LLC, three other clients, a website, a business licence. Prong C: clean. Prong B: she is writing software for a software company. The work is the usual course of the business. The prong fails the moment she signs.
Same pattern across most knowledge work. A marketing agency hires a freelance copywriter, B fails. An architecture firm hires a contract draftsperson, B fails. The narrow path through B runs through work the business doesn’t sell: a plumber called to fix the office toilet passes B, the electrician wiring the new conference room passes B, the janitorial service passes B.
What Prong C actually looks like
Aria runs ops contracting out of San Diego. She has six active clients, an S-corp, professional liability insurance, a public website, and her own VA who books the calls. She takes on engagements in defined sprints, sets her own rates, and walks at the end.
Prong C is clean for Aria. If a Los Angeles tech company hires her to redesign their onboarding flow on a six-week project, and her work sits outside their core product, the engagement clears all three prongs. The audit-ready evidence sits in her business records, not in the client’s contract template.
One client. One project. No website. No other engagements. That worker is an employee, no matter what the contract says.
Who is exempt from the ABC test?
A long but narrow list. Specific occupations and bona-fide business-to-business contracts fall back to the older Borello multi-factor test.
Everything not on the list defaults to ABC. The list is not a contractor playground. Each carve-out has its own conditions, and missing any one of them pushes the relationship back into ABC.
Marcus is a freelance writer in Los Angeles. He clears the writer-specific carve-out because he sets his own rates, keeps his copyright, and writes for at least three other outlets. Drop any one of those conditions and Marcus is back under ABC.
| Category | Examples | Statute |
|---|---|---|
| Licensed professions | Lawyers, doctors, dentists, architects, engineers, accountants, securities brokers, investment advisers, private investigators | Cal. Lab. Code § 2783 |
| Direct sellers | Direct salespeople meeting Unempl. Ins. Code § 650 conditions | Cal. Lab. Code § 2783 |
| Real estate | Real estate licensees, repossession agencies | Cal. Lab. Code § 2783 |
| Personal-service occupations | Hair stylists, barbers, manicurists, estheticians (with specific conditions including booth-rental, separate clientele, separate scheduling) | Cal. Lab. Code § 2778 |
| Freelance writers, editors, photographers | Subject to specific conditions on volume and exclusivity | Cal. Lab. Code § 2778 |
| Bona-fide business-to-business contracts | Service provider is a separate business entity; meets all 12 conditions in § 2776 (separate workspace, multiple clients, separate licences, etc.) | Cal. Lab. Code § 2776 |
| Referral agency relationships | Service provider is a separate business; meets all 10 conditions in § 2777 | Cal. Lab. Code § 2777 |
| Construction subcontractors | Licensed contractors meeting specific conditions including separate licence, separate insurance, separate workforce | Cal. Lab. Code § 2781 |
The B2B exemption is the one most employers reach for first
The business-to-business carve-out doesn’t require the contractor to be on a specific occupational list. It also fails most often.
The exemption needs the service provider to be a separate business entity, usually an LLC or corporation, not a sole proprietor. They have to maintain a separate workspace. Hold their own business and contractor licences where required. Carry their own insurance. Advertise to the public. Set their own rates. Negotiate on their own behalf. Perform similar work for other clients.
That is 12 conditions. Miss one, the relationship snaps back to ABC. At that point Prong B determines the answer for most knowledge-work engagements.
One workable use of the exemption: a 200-person ad agency hires a separately-incorporated branding studio with its own staff and clients to handle a single rebrand. Both sides are real businesses. The studio passes. A lone copywriter spun out yesterday with no other clients does not.
How is California’s ABC test different from the IRS 20-factor test?
Two structural differences.
Presumption: ABC presumes employee. IRS 20-factor weighs neutral factors and lets the auditor reach a balance-of-factors answer.
Burden: under ABC, you prove all three prongs. Under IRS, the auditor weighs the pattern.
A worker who passes the IRS test as a contractor in Texas will routinely fail California’s Prong B. Same role. Same person. Different answer.
Most US states, including Alabama, Arkansas, Texas, Florida, and Indiana, use a version of the IRS 20-factor common-law test for state unemployment and tax purposes. The analysis groups facts into three buckets: behavioural control, financial control, and the relationship of the parties. No single factor decides. The pattern decides.
A contractor who scores 14 of 20 toward employee is usually an employee. A contractor who scores 14 of 20 toward independent is usually a contractor. The test reflects an underlying balance.
California is structurally different on two axes. The worker starts as an employee, not as a question. The auditor does not balance factors. The hiring entity carries the burden to prove each of A, B, and C. And Prong B is binary. There is no factor that offsets a Prong B fail. No NDA, no own laptop, no own training plan.
California flips the presumption. Every worker is an employee until you prove A, B, and C. Most out-of-state employers fail Prong B without realising it, because the contractor work IS the usual course of business. Run the ABC analysis before the first invoice. By audit time, the contract terms cannot save the relationship.
The conversion trap for multi-state employers
This is the audit pattern Teamed sees most often. A software company in Austin hires a contractor developer, renews annually for three years, and the IRS 20-factor analysis is clean each time. Then they open a small office in Mountain View and re-engage the same person at the California address.
Prong B fails from day one of the California re-engagement.
When the worker files an unemployment claim or a wage-hour complaint, the Employment Development Department, or EDD, reaches back over the California portion and reclassifies. The reclassification triggers UI back-contributions, SDI back-contributions, ETT back-contributions, state income-tax withholding back, IWC Wage Order back wages (overtime and meal-break premiums included), and civil penalties on top.
Teamed’s Contractor Classifier runs both tests. For a California engagement, it runs ABC and surfaces Prong B as the structural risk if the role looks borderline. For the same role hired into Texas or Florida, it runs the IRS 20-factor analysis. One tool, two outputs, audit-ready rationale for each.
What does AB5 misclassification actually cost?
Stacked liability across five categories.
A misclassified $80,000-a-year California worker, reclassified after three years on a 1099, costs you $80,000 to $140,000 per worker. Back UI, SDI, and ETT. Back state withholding. Back wages under the wage orders. Civil penalties. PAGA exposure on top.
California stacks misclassification heavier than most US states because five enforcement tracks run in parallel. Each one has its own statute, its own agency, and its own recovery rules.
| Exposure category | What gets recovered | 3-year cost on an $80k California worker |
|---|---|---|
| State UI, SDI, ETT back contributions | Unpaid employer UI (1.5 to 6.2 percent on first $7,000), ETT (0.1 percent on first $7,000), plus SDI withholding the employer should have collected (1.3 percent on all wages, employee-paid but employer-remitted) | ~$3,400 employer-side UI/ETT plus $3,120 SDI withholding gap, plus penalty and interest (Cal. Unempl. Ins. Code § 1135) |
| State income tax withholding (FTB) | Unpaid PIT withholding from worker’s wages over the engagement period, plus penalty | ~$5,000 to $8,000 plus penalty |
| IWC Wage Order back wages | Minimum wage gap, overtime premiums (time-and-a-half over 8 hours daily AND 40 weekly, double-time over 12 daily), missed meal-break premium (1 hour wages per missed break), missed rest-break premium | Variable; overtime and meal-break gaps regularly run $20,000 to $40,000 per worker over 3 years |
| Civil penalty for wilful misclassification | $5,000 to $15,000 per violation; $10,000 to $25,000 for pattern or practice | $15,000 to $25,000 typical for a multi-worker case (Cal. Lab. Code § 226.8) |
| PAGA action | Private plaintiff sues on State’s behalf; 75 percent to LWDA, 25 percent to aggrieved employees; civil penalties stack on top of wage recoveries | $100 per pay period per worker, doubled to $200 for subsequent violations (Cal. Lab. Code § 2698 et seq.) |
There is no good-faith defence
Unlike most IRS-aligned states, California does not recognise the federal Section 530 reasonable-basis safe harbour for ABC purposes. A hiring entity that genuinely believed its contractor classification was correct still owes the back contributions and back wages when EDD or the Labor Commissioner reclassifies.
Section 530 may still cap the federal payroll-tax piece of the exposure. It does not touch the state-side UI, SDI, ETT, withholding, wage-order back wages, civil penalty, or PAGA exposure. The California exposure is the dominant exposure, and intent does not get you out.
The follow-on PAGA suit
Plaintiffs’ firms in California track the EDD audit pattern and file follow-on Private Attorneys General Act, or PAGA, suits within the one-year limitations window. A single misclassified role can produce a five-figure EDD assessment, a six-figure PAGA exposure, and a class wage-hour suit that hits every contractor on the same job description across the workforce.
Teamed’s US payroll books every California hire as the right entity from day one. Statutory employer cost passes through at cost on the invoice. UI, SDI, ETT, workers’ comp premium. No markup on statutory cost. Every line visible.
How does Proposition 22 fit California classification in 2026?
Proposition 22, passed by California voters in November 2020, carves out app-based rideshare and delivery drivers from the ABC test.
Those drivers are treated as independent contractors, with a defined set of pay and benefit minimums on top. The measure survived state and federal challenges and is in force for 2026.
It applies narrowly. It does not extend to other gig categories. The cleaning marketplaces that briefly tried to read Prop 22 broadly were forced back into ABC.
Marcus drives for a rideshare app three nights a week and freelances as a writer during the day. His rideshare hours fall under Prop 22. His writing engagements still answer to ABC and the § 2778 freelancer carve-out. Two different tests on the same person, same week.
What the carve-out includes
- Minimum compensation floor of 120 percent of the applicable minimum wage on engaged time, plus 30 cents per mile (indexed)
- Health-care subsidy for drivers working at least 15 engaged hours per week (full subsidy at 25 hours)
- Occupational accident insurance for engaged time
- Anti-discrimination and sexual-harassment protections aligned with employee-level protections
- No employer obligation for unemployment insurance, paid sick leave, paid family leave, or workers’ comp on the app-based driver work
The 2024-2025 legal certainty
The California Supreme Court upheld Prop 22 in Castellanos v. State of California in 2024, settling the state constitutional challenges. The Ninth Circuit upheld AB5 itself the same year. The US Supreme Court denied certiorari on 13 January 2025.
The combined effect: ABC is the default. Prop 22 is a narrow voter-approved exception for app-based drivers. Both are legally settled for 2026.
| Authority | Holding | Source |
|---|---|---|
| Prop 22 carve-out for app-based drivers | Drivers exempt from ABC; treated as independent contractors with defined minimums | Cal. Bus. & Prof. Code § 7448 et seq. |
| State constitutional challenge | Prop 22 upheld | Castellanos v. State of California (2024) S279622 |
| Federal constitutional challenge to AB5 | AB5 upheld | Olson v. California (9th Cir. 2024) |
| Supreme Court review of AB5 | Certiorari denied 13 January 2025 | Olson v. California, cert. denied |
How Teamed handles California worker classification end to end
Teamed becomes your legal Employer of Record in California for a flat $599 per employee per month.
For any role you want to engage as 1099, the same platform runs the Contractor Classifier against the California ABC test, not the IRS 20-factor analysis. Prong B exposure surfaces before you sign.
One system from contractor to EOR to your own US entity. Zero FX mark-up. Statutory employer cost passes through itemised on every invoice.
What that looks like, day to day:
- Day 0. The role goes through the Contractor Classifier set to California. The tool walks the three prongs, surfaces Prong B first, and returns a confidence score with the auditable rationale. Pass all three with high confidence, you engage on 1099 through the platform. Fail Prong B, the role engages through Teamed’s EOR as a W-2 from day one.
- Day 1, EOR path. Teamed US Inc. is the legal employer of record. We onboard the worker with Form DE 4 for California withholding, federal W-4, Form I-9, and any local registrations. UI, SDI, ETT, and workers’ comp premium book automatically at the correct California risk class. State withholding aligns with the FTB nine-band ladder including the 1 percent Mental Health Services Act surcharge above $1,000,000.
- Day 1, contractor path. The engagement runs on a Teamed contractor agreement that documents the ABC analysis at the point of hire, including the bona-fide B2B test where applicable. A quarterly classification review catches any role that has drifted toward employee since hire, before EDD finds it.
- Ongoing. Federal and state filings run on cadence: DE 9, DE 9C, DE 88 deposits, W-2 and 1099 year-end. A multi-state day ledger tracks any worker who splits time across California and another state, so the California day-count rules trigger correctly.
- If a role changes. A contractor whose Prong B exposure shifts, because the hiring entity has pivoted into the contractor’s field, converts to W-2 on the same platform. The worker keeps their record. The hiring entity gets a clean reset on the right test.
Behind the platform sits a named country specialist for the United States and a named legal specialist for state-level employment matters. When something looks borderline on Prong B, you message the same person. No support tickets. No chatbot triage.
Contractor onboarding, EOR payroll, and entity graduation all live on one platform. A California contractor who converts to W-2 keeps their record. That same employee can graduate from EOR to your own Delaware C-corp or California qualified foreign corporation without changing systems. One timeline. One platform.
When EOR is the right call (and when it isn’t)
EOR works while you’re testing the California market, ramping a small remote team, or running a handful of W-2 hires alongside contractor relationships you want to keep.
Once you have six or more California employees and predictable hiring ahead, the maths of running your own California-registered entity starts to win. Teamed’s Crossover Calculator tells you the month it flips. The conversation is built into the relationship.
The California ABC test isn’t complicated. It’s Prong B that catches everyone. We see a US client confident the contractor developer arrangement that worked in Texas will hold in California. The work IS the usual course of business, so Prong B fails before the audit even begins. By the time EDD opens the file, three years of UI, SDI, ETT, withholding, wage-order back-pay, and PAGA exposure have stacked up on one engagement. Run the ABC analysis at the contract stage, on the prong the auditor will actually weigh.
California is not a 20-factor state. The presumption flips, the burden flips, and Prong B does most of the work.
If the contractor is doing what your business does, the audit answer is employee.
Run the ABC test at the contract stage, not when EDD opens the file.
