If you drive your own car for work in California, your employer owes you money for it. Under Labor Code Section 2802, California mileage reimbursement covers the full cost of operating your vehicle for the job, not just gas. For 2026, most employers meet that duty by paying the IRS standard rate of 72.5 cents per mile. If you aren’t being paid, or you suspect the rate you’re getting doesn’t cover your real costs, California treats the shortfall the same way it treats unpaid wages.
What Labor Code 2802 Actually Requires
Section 2802 requires an employer to reimburse an employee for all necessary expenses the employee incurs as a direct result of doing their job.1California Legislative Information. California Code LAB 2802 It applies whether you’re hourly, salaried, full-time, or part-time. When your work requires driving your personal car, the employer picks up the vehicle costs tied to that driving.
“Necessary expenses” goes well beyond fuel. It includes a proportional share of depreciation, tire wear, oil changes, insurance premiums, and general maintenance. Employers don’t get to cherry-pick which costs to cover; the reimbursement must reflect the real, total cost of using the vehicle for work.
You cannot sign this right away. Labor Code Section 2804 voids any contract or agreement, written or implied, that waives your reimbursement rights under Section 2802.2California Legislative Information. California Code LAB 2804 If you signed a policy accepting a lower rate or agreeing to absorb your own vehicle costs, that agreement is unenforceable.
Which Miles Count
Not every mile is on the employer. Your normal commute between home and a fixed workplace is your own expense. Driving done during or because of your work duties is reimbursable. That includes travel between job sites, trips to pick up supplies, client visits, deliveries, and driving to mandatory training at a location other than your regular workplace.
The line gets harder when there is no single fixed workplace. If you work from home and drive to a client, or you’re a field employee who reports to different sites each day, categorization matters. California courts have generally held that driving to varying job sites within a normal commuting range can still count as a commute. But when an employer requires you to transport their tools or supplies in your personal vehicle, that same drive can become compensable, reimbursable work travel. If you drive to different locations often, pay attention to how your trips are being classified.
The 2026 Rate
The simplest and most common way to calculate reimbursement is the IRS standard mileage rate. For 2026 that rate is 72.5 cents per mile.3Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents per Mile, Up 2.5 Cents It applies equally to gasoline, diesel, hybrid, and fully electric vehicles. The IRS sets it from an annual study of fixed and variable operating costs, and California’s Division of Labor Standards Enforcement accepts it as a reasonable measure of the full cost of operating a vehicle.4California Department of Industrial Relations. DLSE Opinion Letter – Reimbursement for Expenses
An employer can use a different method: a flat monthly car allowance, actual documented expenses, or a lower cents-per-mile rate. Whatever method they choose has to fully cover your actual costs. If your employer pays 50 cents per mile, you can challenge that rate. The employer then has to prove the lower amount really covered everything, including depreciation, fuel, insurance, and maintenance. If you can show it fell short, the employer owes the difference. Paying the IRS rate sidesteps that fight because it’s treated as presumptively adequate.
Keeping a Mileage Log
You’re the one who has to document the trips. A solid log records the date, starting and ending locations, total miles, and the business reason for each trip. Keeping it current is much easier than reconstructing it later, and gaps give the employer a reason to delay payment.
Your employer can require a specific app or form, but they cannot deny reimbursement solely because you used a different format. If your records contain the required information and are verifiable, the claim has to be processed. Using the system your employer provides tends to speed things up.
When the Employer Has to Pay
Once you submit a complete expense report, reimbursement should follow promptly. California law doesn’t set a specific number of days, but the DLSE expects payment within the same pay period as your submission or the one immediately after.
The stakes rise when employment ends. Any outstanding unreimbursed expenses have to be included in your final wage payment. If you’re fired, that payment is due immediately. If you resign with at least 72 hours’ notice, it’s due on your last day. If the employer misses that deadline, your wages keep accruing as a penalty at the same daily rate until they pay or you file suit, capped at 30 days.5California Legislative Information. California Code LAB 203 For someone earning $200 a day, that’s up to $6,000 on top of the unpaid reimbursement itself.
Is Mileage Reimbursement Taxable
Whether the reimbursement counts as taxable income depends on how the plan is structured. Under IRS rules, reimbursements paid through an “accountable plan” are excluded from your income entirely and don’t appear as wages on your W-2.6Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses To qualify, the plan has to meet three conditions:
- Business connection: the expenses are incurred while doing your job.
- Adequate accounting: you document the expenses to your employer within 60 days of incurring them.
- Return of excess: if you were advanced or paid more than the amount you substantiated, you return the difference within 120 days.
If all three are met, the reimbursement stays off your tax return. Miss any of them and the whole reimbursement becomes taxable wages, subject to income tax withholding, Social Security, and Medicare.7Internal Revenue Service. 2026 General Instructions for Forms W-2 and W-3 Sloppy record-keeping hurts you twice: once when the employer questions your reimbursement, and again when the IRS treats it as income.
A Gap in Your Personal Auto Insurance
One issue that catches employees off guard: your personal auto policy may not cover accidents that happen while you’re driving for work. Many standard policies contain business-use exclusion clauses, so an insurer could deny a claim if you were on a work errand when a crash happened. Before you regularly drive your own car for the job, call your insurance agent and ask whether the policy covers business use or whether you need an endorsement.
If Your Employer Won’t Pay
If your employer refuses to reimburse valid mileage, the most accessible option is filing a wage claim with the California Labor Commissioner’s Office (the DLSE). You can file online, by email, by mail, or in person, and there’s no filing fee.8California Department of Industrial Relations. Labor Commissioner’s Office – How to File a Wage Claim The office investigates and usually schedules a settlement conference. If that doesn’t resolve things, the case moves to a hearing where an officer reviews the evidence and issues a decision.
What you can recover goes beyond the unpaid mileage. An award under Section 2802 carries interest at the civil judgment rate, running from the date you incurred each expense. Section 2802 also treats reasonable attorney’s fees and litigation costs as “necessary expenditures,” so a successful claim shifts your legal bill onto the employer.9California Legislative Information. California Labor Code 2802 If the employer withheld reimbursement at termination, Labor Code 203 waiting time penalties can add up to 30 days of your daily pay.5California Legislative Information. California Code LAB 203
You can also skip the DLSE and file directly in civil court. The fee-shifting provision in Section 2802 makes these cases attractive to employment lawyers, because the employer pays the legal bill if you win. Between interest, waiting time penalties, and fees, employers who refuse to pay mileage often end up paying far more than the reimbursement would have cost in the first place.