California AB 5 Independent Contractor Test: 2026 Enforcement Update

California's AB 5, codified as Labor Code § 2775 et seq., continues to reshape how companies engage workers in 2026. The state labor commissioner's office released updated enforcement guidance in June clarifying the scope of the ABC test's prong B — the "usual course of business" inquiry — specifically for platform-based delivery and rideshare arrangements.

Under the ABC test, a hiring entity must establish three independent conditions to lawfully classify a worker as an independent contractor. Prong A requires that the worker be free from control in fact and under contract. Prong B has been the most contested: the work must be "outside the usual course" of the hiring entity's business. Prong C requires that the worker customarily and independently performs the same type of work.

The new guidance addresses two concrete scenarios. First, app-based platforms whose primary product is the facilitation of transportation or delivery cannot invoke prong B to reclassify drivers, even where those drivers set their own hours. The commissioner's office cited Dynamex and the subsequent Borello integration for limited professional services. Second, for B2B exemptions under § 2776, the guidance increases scrutiny of arrangements where the contracting business lacks its own clients independent of the platform.

Practical implications are significant for California employers. Companies with hybrid workforces — using both W-2 employees and 1099 contractors for related functions — should audit workflows before the October 1 enforcement window. The labor commissioner has signaled it will prioritize joint-employer investigations in the gig economy, construction, and healthcare staffing sectors. Firms advising employers should also note the interaction with PAGA representative action exposure, since misclassification of even a small cohort can trigger aggregate civil penalties at scale.

For employment counsel, the recommended risk-management posture combines a proactive ABC-test audit, written documentation of the worker's independently maintained business, and contractual provisions addressing each prong. Where reclassification is required, a phased transition to W-2 status that preserves operational flexibility — through structured part-time arrangements, results-based compensation, and clear scope definitions — remains the most defensible outcome.