Under California Labor Code Section 2802, business expense reimbursement is mandatory: your employer must pay you back for every necessary cost you incur while doing your job, and if they refuse, you can recover the unpaid amount plus interest and attorney’s fees.1California Legislative Information. California Code LAB 2802 The obligation is automatic. Once your employer knows or should know you spent personal money on work, they owe you that money back, whether or not you filled out a form asking for it.
What Counts as a Necessary Expense
Section 2802 doesn’t list categories. Any cost that is necessary to perform your job qualifies, including expenses you incur following your employer’s directions, unless you knew those directions were unlawful at the time.1California Legislative Information. California Code LAB 2802
In practice, the most common reimbursable expenses are:
- Mileage when you use your personal vehicle for work trips (your regular commute doesn’t count). Many employers benchmark to the IRS standard mileage rate, which is 72.5 cents per mile for 2026. The IRS rate isn’t legally required, but underpayment is a common source of disputes.2Internal Revenue Service. Standard Mileage Rates Updated for 2026
- Tools, safety gear, and software the job requires you to buy.
- Uniforms your employer requires that aren’t usable as everyday clothing.
- Training, licensing, and mandatory continuing education fees.
- Office supplies, postage, printing, and similar materials.
Cell Phone and Remote Work Costs
This is now one of the most active areas under Section 2802. In Cochran v. Schwan’s Home Service, Inc., the California Court of Appeal held that an employer must reimburse a reasonable percentage of an employee’s personal cell phone bill whenever the phone is required for work. The court was explicit that the duty applies even if the employee has an unlimited plan and would have paid the same bill anyway.3Justia. Cochran v Schwans Home Service
The same reasoning covers home internet, electricity, and other utilities that increase when you work from home. There is no fixed percentage in the statute. Many employers pay a flat monthly stipend, often between $50 and $100, but the legally safer approach is one that reasonably approximates the employee’s actual work-related share.
Who the Law Covers
Section 2802 protects employees in every California industry and job title, whether you work in an office, on a job site, or from home. It does not cover independent contractors. If your employer classifies you as a contractor and you believe you’re actually an employee, you would need to establish employee status first (California’s ABC test under AB 5 governs most of those disputes) before Section 2802’s reimbursement duty applies.1California Legislative Information. California Code LAB 2802
How Reimbursements Are Taxed
How the payment shows up on your paycheck depends on whether your employer runs an “accountable plan” under IRS rules. It matters because the wrong structure turns a tax-free reimbursement into taxable wages.
Accountable Plans Stay Off Your W-2
To qualify as an accountable plan, the arrangement must meet three requirements: the expense has a business connection, the employee substantiates it with receipts or other documentation, and any excess advance is returned to the employer.4Internal Revenue Service. Publication 15-B Employers Tax Guide to Fringe Benefits Under IRS safe-harbor rules, you generally need to substantiate within 60 days of incurring the expense. Miss that window and the reimbursement can be reclassified as taxable income, with federal and state income tax, Social Security, and Medicare withheld from a future paycheck.
Nonaccountable Plans Are Taxable Wages
If your employer pays a flat allowance with no receipt requirement and no return obligation, that’s a nonaccountable plan. The IRS treats those payments as wages subject to federal income tax withholding, Social Security, Medicare, and FUTA tax.5Internal Revenue Service. Publication 15 (2026) Circular E Employers Tax Guide A $200 monthly “expense allowance” with no strings attached shows up as taxable income on your W-2.
Records to Keep
Documentation is what separates a quick reimbursement from a drawn-out fight. Your employer’s duty doesn’t hinge on perfect paperwork, but solid records make a claim much harder to dispute.
- For mileage, log the date, starting point, destination, and business purpose of each trip. A phone app that tracks automatically is the easiest option.
- For purchases, save every receipt. A photo stored in a cloud folder works.
- For phone and internet, keep monthly bills and note your estimated work-use percentage and how you arrived at it.
How to Request Reimbursement
Start with your employer’s internal process, whether that’s expense management software or a paper form. Keep copies of everything you submit. If there is no formal process, send the request in writing by email to your manager or HR, describe the expense, attach documentation, and ask when you can expect payment. That written record becomes important later if you need to show the employer knew about the expense. Most employers process reimbursements within one or two pay cycles, often as a separate non-taxable line item.
Filing a Claim When Your Employer Won’t Pay
You don’t need a lawyer to start. The California Division of Labor Standards Enforcement (DLSE) handles wage claims that include unpaid expense reimbursement, and you can file online, by email, by mail, or in person at any Labor Commissioner’s Office. There is no filing fee.6California Division of Labor Standards Enforcement. How to File a Wage Claim
After you file, the office investigates and usually schedules a settlement conference. If that doesn’t resolve things, a hearing officer takes evidence and issues a decision.6California Division of Labor Standards Enforcement. How to File a Wage Claim Section 2802(d) also lets the Labor Commissioner issue citations directly against violating employers, with the amounts recovered going to the affected employee.1California Legislative Information. California Code LAB 2802
What You Can Recover
The statute builds in real incentives for employers to pay up. Section 2802(b) requires any court or DLSE award to carry interest at the same rate as civil judgments, running from the date you originally incurred the expense, not the date you filed the claim.1California Legislative Information. California Code LAB 2802
Section 2802(c) defines “necessary expenditures or losses” to include all reasonable costs of enforcing your rights, including attorney’s fees.1California Legislative Information. California Code LAB 2802 That fee-shifting rule is what makes these claims economically realistic for a single worker. A lawyer can take the case knowing the employer pays the legal bill if you win. Combined with back interest, that exposure motivates most employers to settle valid claims before a hearing.
How Long You Have to File
You have three years from the date you incurred an unreimbursed expense. That deadline comes from California Code of Civil Procedure Section 338(a), which governs actions based on a liability created by statute.7California Legislative Information. California Code CCP 338 In some situations, a claim brought under California’s Unfair Competition Law can extend the window to four years.
The three-year clock runs separately for each expense. If your employer has skipped mileage reimbursement every month for five years, you can still recover the past three years’ worth. Don’t wait until you leave the company to file. The deadline doesn’t pause while you’re still employed, and older expenses keep dropping off the back end.
The Federal Minimum Wage Backstop
Section 2802 is state law, but the federal Fair Labor Standards Act adds a floor: an employer can’t require you to bear costs for tools, uniforms, or similar items that primarily benefit the employer if doing so pushes your effective pay below the federal minimum wage of $7.25 per hour or cuts into required overtime.8U.S. Department of Labor. Fact Sheet 16 Deductions From Wages for Uniforms and Other Facilities Under the FLSA With California’s minimum wage at $16.90 in 2026, the federal floor rarely bites here.9California Division of Industrial Relations. California Minimum Wage MW-2026 It still matters for overtime calculations, and the FLSA also blocks employers from sidestepping the rule by making employees reimburse the company in cash instead of taking payroll deductions.