Employer mileage reimbursement is the payment a company makes to a worker who drives a personal vehicle for the job, and for 2026 the benchmark rate is 72.5 cents per mile, the figure the IRS publishes each January.1Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents No general federal law forces a private employer to pay that exact rate, or to reimburse mileage at all. But federal wage rules and state statutes in roughly a dozen states create enforceable obligations that catch many companies by surprise, and the tax treatment of whatever your employer does pay depends on how the plan is structured.
The 2026 IRS Rate and What It Covers
The 72.5-cent rate is up 2.5 cents from 2025 and is based on a national study of what it costs to own and operate a car. That single number bakes in fuel, depreciation, insurance, registration, and routine maintenance. It applies equally to gasoline, diesel, hybrid, and fully electric vehicles.
The rate is a simplification tool, not a legal minimum. Employers can reimburse at a lower rate, a higher rate, or skip per-mile reimbursement in favor of a flat car allowance. What the rate actually controls is tax treatment: reimbursements at or below 72.5 cents per mile are straightforward to keep off an employee’s W-2, and anything above creates payroll complications covered below.
Parking fees and highway tolls incurred during business travel are reimbursable separately; they are not baked into the per-mile figure. Parking at your regular workplace doesn’t count, though. That’s a commuting expense.2Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses
When Reimbursement Is Legally Required
The Federal Minimum-Wage Floor
The Fair Labor Standards Act contains no general requirement to reimburse mileage. It does contain an anti-kickback rule: if unreimbursed job expenses push your effective hourly pay below the minimum wage, your employer has violated federal law.3eCFR. 29 CFR 531.35 – Free and Clear Payment; Kickbacks The federal floor is $7.25 per hour, but most states set higher floors, commonly in the $13 to $17 range, so the rule bites sooner in those states.4U.S. Department of Labor. Wages and the Fair Labor Standards Act
An employee earning $15 an hour who drives 200 business miles a week without reimbursement absorbs roughly $145 in vehicle costs at the IRS rate. Meaningful, but probably not enough to drop a $15 wage below the minimum. An employee earning $7.25 has almost no room; virtually any unreimbursed driving creates a violation. Low-wage drivers are the most exposed group.
Remedies for an FLSA minimum-wage violation include back pay for the underpayment plus an equal amount in liquidated damages, effectively doubling what’s owed, along with attorney’s fees.5U.S. Department of Labor. Civil Money Penalty Inflation Adjustments
State Expense-Reimbursement Statutes
Roughly a dozen states go further, requiring employers to reimburse all necessary business expenses, including mileage, regardless of how much the employee earns. These laws protect salaried professionals and high earners, not just minimum-wage workers. The scope varies. Some states cover any expense the employer authorizes or requires; others focus on tools and equipment with broader language courts have read to cover vehicle costs.
Penalties range from interest on the unpaid amount and mandatory attorney’s fees to enhanced damages of two or three times what was owed. If you work in one of these states, a single company-wide policy that ignores state-specific rules is not enough. Multi-state employers need to check each jurisdiction.
How the Payment Is Taxed
Tax treatment hinges on whether your employer runs what the IRS calls an accountable plan. Get the structure right and nobody pays extra tax. Get it wrong and the reimbursement lands on your W-2 as taxable wages.
Accountable Plans
An accountable plan must satisfy three requirements. The expense must have a business connection. The employee must substantiate it with adequate records. Any excess advance must be returned within a reasonable timeframe.6Office of the Law Revision Counsel. 26 USC 62 – Adjusted Gross Income Defined
When a qualifying accountable plan reimburses mileage at or below 72.5 cents per mile, the payment is excluded from gross income entirely. It doesn’t appear on the W-2, and neither employer nor employee pays payroll tax on it. This is the arrangement most employers aim for.
Nonaccountable Plans and Overpayments
If the arrangement fails any of the three requirements, whether by not requiring substantiation, letting the employee keep excess amounts, or lacking a clear business connection, the IRS treats the whole plan as nonaccountable. Every dollar is included in gross income and reported on the W-2 as wages, subject to income tax and payroll tax withholding.7Internal Revenue Service. Revenue Ruling 2003-106
A related issue comes up when the employer reimburses above the IRS rate. If your company pays 80 cents per mile, the first 72.5 cents is tax-free under an accountable plan, and the extra 7.5 cents per mile is taxable wages. Generous rates require the payroll department to split the payment, which adds work.
Which Miles Actually Qualify
Not every work-related trip earns reimbursement. The IRS draws a firm line between business travel and commuting, and that line catches more employees than any other reimbursement rule.
Commuting Is Personal
Driving from home to your regular workplace and back is commuting. Distance doesn’t matter, traffic doesn’t matter, and working during the drive doesn’t change anything. These are personal expenses.2Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses
Business Mileage Between Sites
Once you’ve arrived at your first work location for the day, driving between work sites is business mileage. Trips to a client’s office, a second branch, the bank for a company deposit, or a supply store all qualify. Drives between two work locations in the same day are deductible even if the locations belong to different employers.
Temporary Work Locations
Travel from home to a temporary work location is deductible business mileage if you also have a regular workplace elsewhere. An assignment counts as temporary if you realistically expect it to last one year or less. The moment that expectation changes, even at the three-month mark, the location becomes your regular workplace and trips from home revert to nondeductible commuting.8Internal Revenue Service. Topic No. 511, Business Travel Expenses
The Home Office Exception
If you have a home office that qualifies as your principal place of business, every trip from that home office to another work location in the same trade or business counts as deductible business mileage.9Internal Revenue Service. Publication 587, Business Use of Your Home The space must be used regularly and exclusively for business. A kitchen table where you occasionally check email won’t qualify.
Records the IRS and Your Employer Expect
Federal tax law requires specific documentation for every business trip: the amount, the time and place, and the business purpose.10Office of the Law Revision Counsel. 26 USC 274 – Disallowance of Certain Entertainment Expenses “Client meeting” or “drove to office” won’t hold up. A usable entry reads more like “drove to 456 Oak Ave, Round Rock, to review Q2 contract with purchasing manager.” Each entry should include:
- The date of the trip.
- Starting point and destination, ideally with street addresses.
- A concrete business purpose.
- Total business miles for the trip.
Records must be contemporaneous, meaning created at or near the time of travel. Reconstructing a year of mileage from memory in April is what auditors look for and reject. You also need odometer readings at the start and end of each tax year and whenever you begin or stop using a vehicle for business.
GPS-based mileage apps satisfy these requirements and cure the most common failure: forgetting to log a trip. They capture date, route, distance, and locations automatically. You still tag each trip with a business purpose. Most employers require submission on a monthly or biweekly cycle, and late filings risk denial if the expense falls outside the company’s accounting period.
Options When Your Employer Won’t Pay
If you work in a state with a mandatory reimbursement statute, you can file a wage claim with the state labor agency or pursue the unpaid amounts in court. Remedies typically include the reimbursement itself, interest from the date of the expense, and attorney’s fees. At the federal level, the path runs through the FLSA only when unreimbursed expenses actually push your pay below the minimum wage. If they don’t, federal law offers no direct remedy, which is why the state statutes matter so much.
A tax option returns for 2026 that hasn’t been available since 2017. The Tax Cuts and Jobs Act suspended the unreimbursed employee business expense deduction from 2018 through 2025. With that suspension expiring after December 31, 2025, employees who itemize can once again deduct unreimbursed business mileage as a miscellaneous itemized deduction, but only to the extent those expenses (combined with other miscellaneous deductions) exceed 2% of adjusted gross income.11Congress.gov. Expiring Provisions in the Tax Cuts and Jobs Act It reduces taxable income rather than putting cash in your pocket, but for employees with significant unreimbursed driving it’s meaningful. Keep your mileage logs even if your employer doesn’t require them.
The Insurance Gap Nobody Mentions
Most personal auto policies limit or exclude coverage when a vehicle is used for business. If you crash on the way to a client site, your insurer may deny the claim based on a business-use exclusion. Employer and employee alike tend not to think about this until a claim is denied.
Employers can carry Hired and Non-Owned Auto (HNOA) coverage to protect the business when workers drive personal cars on company time. HNOA covers the employer’s liability. It won’t fix a denied claim on your personal policy.
Before putting regular miles on your car for work, check your personal policy for business-use exclusions. Many insurers offer a business-use endorsement for a modest premium increase, and it costs far less than discovering a coverage gap after an accident.