Washington’s expense reimbursement law does not come from a single dedicated statute. It comes from the state’s wage-deduction rules: your employer cannot shift the cost of doing business onto you if doing so drops your effective pay below Washington’s minimum wage, which is $17.13 per hour in 2026.1Washington State Department of Labor & Industries. Minimum Wage When an employer crosses that line, the unpaid amount is treated as withheld wages, and you can recover it, often doubled.
The Rule That Governs Reimbursement in Washington
During ongoing employment, an employer may only reduce your pay below minimum wage for a narrow set of reasons: deductions required by federal or state law, court-ordered garnishments, or payments for medical care.2Legal Information Institute. Washington Administrative Code 296-126-028 – Wage Deductions During On-Going Employment Anything else has to leave at least $17.13 in your pocket for every hour you worked.
Deductions that benefit you personally, such as repaying a company loan or buying goods from your employer, can drop your pay below minimum wage, but only if you agreed in writing beforehand.3Washington State Department of Labor & Industries. Paycheck Deductions The distinction the law draws is between voluntary personal spending and necessary business costs. Business costs belong to the employer.
An expense is “necessary” when you incur it because your job requires it and the benefit runs to your employer. Driving to a client site, buying safety gear the company mandates, cleaning a required uniform. If your employer refuses to cover those costs and your effective hourly pay falls below the state floor as a result, that is a wage violation.
What Your Employer Has to Cover
Mileage and Travel
When you use your personal vehicle for work beyond your normal commute, your employer must make sure fuel, maintenance, and depreciation do not eat your wages below minimum. Washington does not set a per-mile rate for private employers. Many use the IRS standard mileage rate as a benchmark; for 2026 that rate is 72.5 cents per mile.4Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate
Out-of-town travel works the same way. Airfare, lodging, and reasonable meals incurred at your employer’s direction are business expenses. Handled properly, reimbursement is tax-free. Left unpaid, it becomes a wage claim if the shortfall drops you below the minimum wage.
Tools and Equipment
Washington draws a sharp line on equipment. During ongoing employment, an employer cannot deduct the cost of damaged or lost company equipment from your paycheck at all.3Washington State Department of Labor & Industries. Paycheck Deductions If the employer requires you to buy tools as a condition of the job, any resulting deduction cannot push your pay below minimum wage.2Legal Information Institute. Washington Administrative Code 296-126-028 – Wage Deductions During On-Going Employment
Uniforms
You and your employer can agree that the employer will deduct the cost of a company-provided uniform from your final pay if you don’t return it at termination, but even that deduction cannot drop your pay below minimum wage.5Washington State Legislature. Washington Administrative Code Chapter 296-126 Under federal rules, when a uniform is required by the employer or by the nature of the business, its cost and upkeep are a business expense of the employer.6U.S. Department of Labor. Fact Sheet 16 – Deductions From Wages for Uniforms and Other Facilities Under the FLSA Required branded clothing and its cleaning cost cannot cut into your minimum wage or overtime.
Remote Work Costs
Washington has no specific statute requiring reimbursement of home internet, cell phone bills, or home office supplies for remote employees. The same minimum wage rule applies. If required work-from-home costs effectively reduce your hourly earnings below $17.13, your employer has to cover the difference. In practice, phone and internet bills alone rarely push a full-time worker under the threshold, so many Washington employers treat those reimbursements as discretionary.
Documentation and How Reimbursements Are Taxed
Even a legitimate expense will not get paid back if you cannot show what you spent. Most employers require itemized receipts, mileage logs, or invoices, and they set deadlines for submission. Missing an internal deadline can forfeit your right to repayment under company policy even if the underlying expense was legitimate. Check your handbook for pre-approval rules and dollar limits before spending out of pocket.
Documentation also controls whether the money is taxable to you. The IRS splits reimbursement arrangements into two types.
Accountable Plans
Under an accountable plan, reimbursements are excluded from your gross income, are not reported as wages on your W-2, and are exempt from income tax withholding, Social Security, Medicare, and unemployment taxes.7eCFR. 26 CFR 1.62-2 – Reimbursements and Other Expense Allowance Arrangements Three requirements have to be met:8Internal Revenue Service. Publication 463 – Travel, Gift, and Car Expenses
- The expense relates to services you performed as an employee.
- You substantiate the expense to your employer with receipts or other documentation within 60 days of incurring it.
- You return any reimbursement that exceeds your documented expenses within 120 days.
If you turn in receipts and your employer pays you back for the documented amount, the money is tax-free.
Nonaccountable Plans
When any of the three requirements fails, the IRS treats the payments as wages. Your employer includes them in box 1 of your W-2, and they are subject to income tax, Social Security, Medicare, and federal unemployment tax.9Internal Revenue Service. Publication 15 – Employer’s Tax Guide A flat monthly stipend paid regardless of actual expenses is the classic example. Even if the money genuinely covers real business costs, the lack of documentation turns it into taxable compensation.
If Your Employer Refuses to Reimburse You
When an employer refuses to cover necessary business expenses and your effective pay falls below minimum wage, Washington treats the shortfall as withheld wages. You have two main routes.
File a Complaint With L&I
The most accessible route is a worker rights complaint with the Washington State Department of Labor & Industries. You can file online, mail in a form, or go to an L&I office in person.10Washington State Department of Labor & Industries. Worker Rights Complaints L&I will share your complaint with the employer and may request paystubs, workplace policies, and time cards from both sides. If the investigation confirms a violation, L&I can order the employer to pay.
The deadline is firm. L&I cannot investigate any violation more than three years old, and it cannot order payment of wages owed more than three years back.11Washington State Legislature. RCW 49.48.083 – Wage Complaints – Duty of Department Filing sooner protects more of what you’re owed.
Sue for Double Damages
When the withholding is willful, Washington law gives you real leverage. An employer that intentionally pays less than owed under any statute, ordinance, or contract commits a misdemeanor.12Washington State Legislature. Washington Code 49.52.050 – Rebates of Wages, False Records, Penalty You can sue in civil court and recover twice the withheld amount as exemplary damages, plus reasonable attorney fees and court costs.13Washington State Legislature. Washington Code 49.52.070 – Civil Liability for Double Damages And any employee who wins a wage recovery lawsuit in Washington is entitled to reasonable attorney fees, even outside the double-damages statute.14Washington State Legislature. Washington Code 49.48.030 – Attorney’s Fee in Action on Wages
One caveat: the double-damages remedy does not apply if you knowingly submitted to the unlawful arrangement. Continuing to work while disputing a policy does not count as knowing submission; signing off on something you knew was illegal might.
Retaliation Is Illegal
Your employer cannot fire you or otherwise punish you for filing a wage complaint, testifying in a wage proceeding, or reporting unpaid wages. Retaliation is a gross misdemeanor under Washington law.15Washington State Legislature. RCW 49.46.100 – Prohibited Acts of Employer, Penalty