California is one of a handful of states that requires employers to reimburse employees for business-related mileage. Under the California mileage reimbursement law, specifically Labor Code Section 2802, employers must cover all necessary expenditures employees incur while performing their job duties. That includes the cost of driving a personal vehicle for work.
This law has real teeth. Employers who fail to comply face lawsuits, class action litigation, and penalties that can run into the millions. Whether you are an employer building a reimbursement policy or an employee making sure you are getting what you are owed, understanding this law is essential.
What Labor Code Section 2802 Requires
California Labor Code 2802(a) states that an employer must indemnify an employee for all necessary expenditures or losses incurred by the employee in direct consequence of discharging their duties. For driving, this means employers must reimburse the actual costs an employee incurs when using a personal vehicle for work.
The law does not specify a per-mile rate. There is no California-specific mileage rate. Most employers use the federal IRS standard mileage rate of 72.5 cents per mile for 2026 as their benchmark. However, the IRS rate is a floor, not a ceiling. If an employee can demonstrate that their actual costs exceed the IRS rate, the employer must pay the difference.
This distinction matters in California where gas prices, insurance premiums, and vehicle costs are higher than the national average. An employee driving a less fuel-efficient vehicle in Los Angeles may legitimately spend more than 72.5 cents per mile, and the employer would be on the hook for the shortfall.
Who Is Covered by This Law
Labor Code 2802 applies to all California employees, not just certain industries or job titles. If your job requires you to drive your personal vehicle for any business purpose, your employer must reimburse you.
Common roles affected include outside sales representatives, delivery drivers, home health workers, real estate agents working as employees, field technicians and inspectors, and social workers making home visits.
The law covers full-time, part-time, and temporary employees. Independent contractors are not covered because they are not employees under California law, though misclassification is a separate legal issue that courts examine closely.
Three Acceptable Reimbursement Methods
A California court decision in Gattuso v. Harte-Hanks Shoppers established three methods employers can use to comply with Section 2802.
Actual expense reimbursement. The employee tracks all vehicle-related costs (gas, maintenance, insurance, depreciation) and submits receipts. The employer reimburses the business-use portion. This is the most accurate method but requires significant record-keeping.
Mileage rate reimbursement. The employee logs business miles and the employer reimburses at a per-mile rate, typically the IRS standard rate. This is the most common method because it is simple to administer. The employee needs a mileage log; the employer applies the rate and cuts a check.
Lump-sum payment. The employer pays a flat monthly car allowance intended to cover vehicle costs. This method is the simplest to administer but the most legally risky. If the allowance does not adequately cover the employee’s actual costs, the employee can challenge it and demand the difference.
Under all three methods, the employee retains the right to challenge the reimbursement as insufficient. Employers cannot cap reimbursement at an arbitrary rate if that rate fails to cover actual costs.
What Happens When Employers Fail to Reimburse
The consequences of non-compliance are severe. Employees can file a wage claim with the California Labor Commissioner or pursue a private lawsuit. Available remedies include three years of back-pay for unreimbursed expenses, interest on the unpaid amounts, attorney’s fees and court costs, and waiting time penalties if the violation continues after employment ends.
Class action lawsuits are common when an employer has a company-wide policy that violates the law. One well-known case resulted in a $4.5 million settlement when a company’s reimbursement policy was found non-compliant. For a broader view of which states mandate reimbursement, see our overview of state mileage reimbursement laws.
How Employers Should Build a Compliant Policy
A strong mileage reimbursement policy protects both the company and its employees. Here is what California employers should include.
Set the rate at or above the IRS standard. Using the 2026 rate of 72.5 cents per mile gives you a defensible starting point. Consider adjusting upward for employees in high-cost areas or those driving less fuel-efficient vehicles.
Require mileage logs. Employees should submit logs showing the date, destination, business purpose, and miles for each trip. This protects the company from inflated claims and satisfies IRS requirements if the reimbursements are made under an accountable plan.
Process reimbursements promptly. Delaying reimbursements for months creates legal exposure. Aim to reimburse within 30 days of the employee’s submission.
Exclude commuting miles. Normal commuting from home to the primary workplace is not reimbursable. Make this clear in the policy to avoid confusion.
Document everything. Keep copies of the written policy, employee mileage submissions, and reimbursement payments. These records are your defense in any dispute.
Employee Rights Under California Law
If you are a California employee who drives for work, know your rights.
You are entitled to reimbursement for every business mile driven in your personal vehicle. Your employer cannot make you absorb the cost of work-related driving. If your employer provides no reimbursement or an inadequate amount, you have three years to file a claim for back expenses.
Track your mileage carefully to support any claim. A detailed log with dates, destinations, and business purposes strengthens your case significantly. Tripbook creates this documentation automatically with GPS tracking that records every trip, making it simple to prove your business miles if a dispute arises.
You do not need to use the company’s preferred tracking method if it is inadequate. Your own detailed records are sufficient to support a reimbursement claim or lawsuit.
Remote Work and the Mileage Reimbursement Question
The rise of remote work has created new questions under Section 2802. If an employee works from home three days a week and drives to the office twice a week, is the office commute reimbursable?
Generally, no. Driving to your regular workplace remains a non-reimbursable commute even if you work remotely on other days. However, if the employer eliminates the employee’s permanent office and the home becomes the primary work location, then trips to client sites, the former office, or other work locations may become reimbursable business mileage.
The key factor is where the employer designates the employee’s primary workplace. This designation should be documented in writing to avoid ambiguity.
Keep Accurate Records to Protect Yourself
Whether you are an employer ensuring compliance or an employee claiming your full reimbursement, accurate mileage records are the foundation. The California mileage reimbursement law protects employees, but only those who can document their business miles.
Download Tripbook and create automatic, GPS-verified mileage logs that hold up in any dispute or audit.
