CSLB Licensing, Classifications and Bonding: The Contractors State License Board licenses every California contractor performing work valued at $500 or more in combined labor and materials, and it issues licenses by classification: A for general engineering, B for general building, and a long list of C specialty classifications. Working outside your classification is an enforcement matter, not a technicality. Licensure carries a contractor bond, mandatory workers compensation coverage for employees, biennial renewal, and financial responsibility expectations. Bond premiums, license fees and insurance are real costs of doing business and belong in your overhead rate, because a bid built without them understates what the job has to carry.
DIR Registration, Prevailing Wage and eCPR Certified Payroll: Contractors and subcontractors must register with the California Department of Industrial Relations before bidding on or performing public works, with an exemption for contracts of $25,000 or less for construction and $15,000 or less for maintenance. Prevailing wage generally applies to public works over $1,000, at determinations published by craft, type of work and county, including scheduled predetermined increases. Certified payroll records are filed electronically through the eCPR system with the Labor Commissioner, and apprenticeship obligations add DAS 140 contract award information, DAS 142 dispatch requests and training fund contributions. All of it is generated from payroll data, which is why certified payroll in California is an accounting function.
Retention Caps, Prompt Payment and Lien Deadlines: Public Contract Code section 7201 limits retention on most California public works prime contracts to five percent, and section 7107 requires release within 60 days of completion. Private contracts set their own percentage. California prompt payment law requires a direct contractor to pass down a subcontractor's share of released retention within a short statutory window, and wrongful withholding carries a penalty of two percent per month in lieu of interest plus attorney fees. On the security side, private work runs on preliminary notice within 20 days of first furnishing and a mechanics lien, while public work runs on stop payment notices and payment bond claims. We are not attorneys and we do not file notices; we keep unpaid amounts organized by job, tier and date furnished so the deadline calendar runs off real data.
Sales and Use Tax on Materials Versus Fixtures: California treats a contractor as the consumer of materials it furnishes and installs, so tax is paid on the purchase, and generally as the retailer of fixtures, where tax applies to the fixture price instead. The statewide base rate is 7.25 percent, and district taxes are layered on top based on where the property is used, meaning the job site governs the rate rather than the yard the truck left from. Out-of-state purchases bring a use tax accrual obligation. The California Department of Tax and Fee Administration audits contractors routinely, and a file that never separated materials from fixtures cannot defend itself. We make the split visible at the job level rather than reconstructed at audit.
Worker Classification and Direct Contractor Wage Liability: Labor Code section 2775 applies the ABC test to worker classification, and section 2781 provides a construction subcontractor exception that generally requires the sub to hold a CSLB license, maintain a business location, carry its own workers compensation and operate as a genuine independent business. Separately, Labor Code sections 218.7 and 218.8 make a direct contractor on private construction liable for wages and fringe benefit contributions unpaid by any subcontractor at any tier, even where the sub was paid in full, and allow payment to be withheld until the sub produces payroll records. Your subcontractor compliance file is therefore a financial control. We collect and hold those records against the commitment in job cost.
Workers Compensation Dual Wage Classifications: California requires workers compensation coverage for every employee with no small-employer exemption, and construction rates here are among the highest in the country. Many construction classifications are dual wage, meaning a trade has two class codes and the applicable one depends on whether the employee earns at or above an hourly wage threshold set for that trade. Qualifying for the lower-rate code depends entirely on payroll records that clearly show the hourly wage, and a premium audit that cannot see it will assign the higher rate. Because workers compensation is one of the largest components of labor burden in California, a reclassification also invalidates the burden rate every open bid was priced on.
Franchise Tax Board and Local Business Taxes: California charges an $800 minimum franchise tax that is due even in a loss year, a franchise tax on corporate net income, an entity-level rate on S corporation income, and an $800 annual tax plus a tiered gross receipts fee on LLCs. Pass-through income is then taxed at some of the highest personal rates in the country. Cities add their own layer: Los Angeles and San Francisco both impose gross receipts based business taxes that reach construction. Contractors who also work Nevada, Arizona or Oregon pick up genuine multi-state nexus and nonresident withholding questions on top. Entity structure that made sense at two million in revenue often does not at eight.