Class Code 8870 applies to fitness instruction programs or studios — the paid work of yoga, Pilates, spin, barre, group fitness and personal trainers employed by studios or wellness programs. The September 1, 2026 approved pure premium rate for California is $0.975 per $100 of payroll, a baseline used to calculate workers' compensation costs for these operations.
This classification covers the on‑site delivery of non‑medical fitness instruction and studio programs: group classes (yoga, spin, HIIT, barre), one‑on‑one personal training employed by a studio, and studio‑led specialty classes such as Pilates or functional fitness. Activities include demonstrating movements, supervising clients, spotting during strength work, setting up and maintaining studio equipment (mats, bikes, weights), and performing client assessments and programming that do not cross into licensed clinical services. It generally excludes licensed medical treatments (physical therapy, chiropractic) and operations primarily focused on sales or administration — those payroll dollars are often coded separately. If instructors lead outdoor bootcamps or employer wellness classes, their paid instruction time is still typically reported to 8870 when the employer controls the program.
The pure premium rate of $0.975 per $100 of payroll represents the carrier’s estimated cost for indemnity and medical claims per $100 of covered wages. To compute base premium, multiply total payroll coded to 8870 by 0.00975 (payroll/100 × 0.975). The final premium on a policy will also reflect carrier expense loads, your business’s experience modification (XMod), any credits or debits, state assessments, and payroll audit adjustments (including how overtime and bonuses are reported).
Cal/OSHA general industry requirements apply to fitness studios: maintain an Injury and Illness Prevention Program (IIPP), keep Safety Data Sheets and train staff on cleaning chemicals (Hazard Communication), and follow heat illness prevention rules for outdoor classes. Studios must provide access to first aid, CPR/AED readiness, report serious injuries within Cal/OSHA timeframes, and maintain accurate injury logs (Form 300/300A) when applicable. Regular housekeeping, slip‑resistant surfaces, equipment maintenance records, and instructor training in safe spotting and client modification are practical compliance measures.
A PEO like Key HR can help fitness studios by ensuring correct payroll classification, administering workers' comp coverage and audits, and implementing targeted loss‑control programs (safe spotting procedures, equipment checklists, sanitation protocols). Key HR also manages claims and return‑to‑work plans to limit indemnity exposure, leverages group purchasing to lower premium costs, and provides HR support and training to reduce injury frequency and improve experience modification over time.
Get a QuoteNo — front‑desk receptionists, sales staff and most office employees are typically coded to separate clerical or sales class codes. Their payroll should be reported separately from instructor payroll to avoid overstating instructional exposure.
Independent contractors generally aren’t reported on an employer’s workers’ comp payroll, but California’s worker classification tests (ABC/AB5 considerations) are strict. Misclassification risk is high for fitness instructors; if the studio controls schedules, training and client relationships, payroll should be reported and covered under 8870.
Track and separate payroll by class code, keep accurate injury records, implement a formal IIPP and routine equipment maintenance, train instructors on safe spotting and progressions, offer light‑duty return‑to‑work options, and work with a PEO or broker to manage claims and secure competitive rates.
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Get a Quoteor call (800) 922-4133Key HR provides California employers with pay-as-you-go workers' comp, HR compliance support, and payroll — all through one PEO partnership.