The Ultimate Guide to California Payroll Tax Audits

Most EDD audits start with a worker filing for unemployment benefits after being classified as a 1099 independent contractor. The EDD Field Audit Group then opens a worker-classification audit. Other triggers include EDD industry-targeted programs, mismatches between Form 1099 filings and DE 9 reports, IRS referrals (the federal-state information exchange), and audits opened from worker compensation claims. The classification of even a single worker as an employee triggers an audit covering all workers in similar positions.

California's ABC test (codified at Labor Code §2775, applied to EDD matters via the Unemployment Insurance Code) requires the business to prove all three prongs to classify a worker as an independent contractor: (A) the worker is free from the company's control and direction, (B) the worker performs work outside the usual course of the company's business, and (C) the worker is customarily engaged in an independently established trade. Failing any single prong reclassifies the worker as an employee.

The auditor requests payroll records, DE 9 and DE 9C quarterly reports, Form 1099-NEC and W-2 filings, written contracts with workers, invoices from contractors, evidence of independent business operations (worker's own business cards, licenses, marketing), and federal employment-tax returns (Forms 941 and 940). For contested workers, the auditor will request the worker's tax returns to see whether the worker treated themselves as a business or employee.

Stage 1: Initial notice and document request. Stage 2: Field audit interviews with the business and selected workers — the EDD will contact workers directly to ask about the work relationship. Stage 3: Auditor's findings memo and proposed Notice of Assessment. Stage 4: 30-day window to petition for reassessment. Audit length: typically 6-12 months. The Notice of Assessment covers the three-year period preceding the audit (longer for fraud or willful failure).

Yes. File a Petition for Reassessment with the California Unemployment Insurance Appeals Board (CUIAB) within 30 days of the Notice of Assessment. Missing this 30-day window forfeits your appeal rights. CUIAB process: Administrative Law Judge hearing (essentially a trial with testimony and cross-examination), then Appeals Board review if either party loses. Many assessments settle at the petition stage because the documentation review often resolves the underlying classification question.

(1) Treating workers as 1099 contractors who do core business work (Prong B violation under ABC). (2) Maintaining control over how, when, or where the work is done (Prong A violation). (3) Hiring workers who don't have an independent business in the same field (Prong C violation). (4) Misapplying the §2778 'business-to-business' exemption to single-worker LLCs that don't meet the structural requirements. (5) Relying on contract language without supporting operational reality — the contract doesn't override the facts.

Often, yes. California Unemployment Insurance Code §1735 allows the EDD to assess personal liability against any corporate officer, director, or shareholder who willfully fails to pay California payroll taxes. Unlike federal Trust Fund Recovery Penalty (which covers only the trust-fund portion), CUIC §1735 covers the entire payroll-tax liability — employer share, interest, and penalties. The corporate veil does not protect against §1735 exposure. This is one of the most aggressive personal-liability provisions in California tax law.

The IRS audits federal employment tax (FICA, FUTA, federal income tax withholding) and applies the federal common-law test for worker classification. The EDD audits state employment tax (UI, ETT, SDI, PIT withholding) and applies California's ABC test, which is stricter. The two agencies share information — an IRS audit finding employees often triggers an EDD audit, and vice versa. The strategy on a federal classification audit has to account for the state consequences.