Wisconsin Mileage Reimbursement Law: Rate, Rules, and Recovery

Wisconsin’s mileage reimbursement law requires state and local government agencies to pay employees back for business driving, but it imposes no equivalent duty on private employers. If you work in the private sector, your right to mileage reimbursement comes from your employment contract, a collective bargaining agreement, or a written company policy, not from state statute. The one exception is a federal floor: no employer, public or private, can let unreimbursed driving costs push your effective pay below the $7.25 hourly minimum wage.

Who Has a Right to Reimbursement

Wisconsin law entitles state officers and employees to reimbursement for “actual, reasonable, and necessary traveling expenses” incurred while performing their duties.¹ When an agency determines a job requires driving, it can authorize personal-vehicle reimbursement at a rate set by the Department of Administration’s Division of Personnel Management and approved by the Joint Committee on Employment Relations. The DOA publishes travel guidelines spelling out how state workers document trips and get paid back.²

Private employers have no equivalent obligation. No Wisconsin statute compels a private company to pay you for business mileage. If your employer promised reimbursement in a handbook, offer letter, or union contract, that promise is enforceable through the state’s wage-claim process. If no such promise exists, state law gives you nothing on its own.

Federal law provides one backstop that matters most to lower-wage drivers. Under the Fair Labor Standards Act, employers must pay wages “free and clear,” meaning a company cannot require you to absorb business driving costs if doing so drops your effective pay below the federal minimum wage of $7.25 per hour (also Wisconsin’s minimum).³ The regulation specifically treats required use of a personal vehicle as a “tools of the trade” expense that cannot cut into minimum wage or overtime.

Independent contractors fall outside both the state reimbursement statute and the FLSA’s wage protections. They can negotiate mileage into a service agreement and deduct business driving on their own tax returns. If you’re classified as a contractor but your employer controls when, where, and how you work, you may actually be an employee, and reclassification can open the door to back reimbursement and wage claims. The DWD and the U.S. Department of Labor both investigate misclassification.

The 2026 Rate Most Employers Use

The IRS set the 2026 business standard mileage rate at 72.5 cents per mile, effective January 1, 2026, a 2.5-cent increase over the prior year.⁴ The rate is designed to cover gasoline, insurance, depreciation, maintenance, and other ownership costs, and it applies equally to gas, diesel, hybrid, and electric vehicles.

Wisconsin state agencies generally follow the IRS rate, though the exact figure comes from the Division of Personnel Management. Some local governments set their own rates, sometimes lower, based on budget. Private employers commonly adopt the IRS rate because it simplifies accounting and keeps reimbursements tax-free, but nothing requires them to match it. A company can reimburse at 50 cents a mile, 30 cents, or nothing, provided it honors whatever rate its own policies promise and the shortfall doesn’t drag an employee below minimum wage.

Which Miles Actually Count

Not every mile you drive for work qualifies. The biggest exclusion is your regular commute.

The Commute Doesn’t Count

Driving between your home and your normal workplace is a personal expense, not a business one, no matter the distance. The IRS is blunt: you cannot deduct commuting costs “even if you work during the commuting trip.”⁵ Under the FLSA, ordinary home-to-work travel is also not compensable time.⁶ If your employer reimburses commuting miles anyway, that payment is taxable income to you.

Temporary Work Locations

Travel from home to a temporary work site in the same line of work is deductible business mileage round-trip. A location counts as temporary if you realistically expect the assignment to last one year or less. If your expectation changes partway through, the location stops being temporary on the date your expectation shifts.⁷

Workers With No Fixed Office

Traveling sales reps, home health aides, and field technicians have no regular workplace to commute to. For these employees, driving between job sites during the workday is generally reimbursable, and the first and last trip of the day may also qualify if the worker has no fixed headquarters.

Car Allowances

A flat car allowance paid regardless of actual driving typically rules out additional per-mile reimbursement unless the policy explicitly allows supplemental payments. Flat allowances that don’t require accounting for business miles are taxable.

Taxes on What You’re Paid Back

How your employer structures the program decides whether you owe tax on the money.

Accountable Plans

Under an accountable plan, reimbursements are tax-free to you and deductible for your employer. The IRS requires three things: a genuine business connection, substantiation to your employer within a reasonable time, and return of any amount exceeding your substantiated costs.⁵ Most per-mile programs qualify as long as employees submit logs.

Non-Accountable Plans

A plan that fails any of those three tests is non-accountable, and reimbursements go on your W-2 as taxable income subject to withholding. A flat car allowance paid regardless of miles driven is the common example. The Wisconsin DOA’s manual confirms the IRS requires the state to report taxable travel reimbursements on employees’ W-2s and withhold accordingly.²

You Can’t Deduct Unreimbursed Mileage

If your employer doesn’t pay you back at all, you cannot deduct the costs on your federal return. The Tax Cuts and Jobs Act eliminated the miscellaneous itemized deduction for unreimbursed employee business expenses starting in 2018, and the suspension has been made permanent.⁴ Negotiating reimbursement up front matters more now because there’s no tax fallback.

Records You Need to Keep

The IRS wants four data points for every business trip: date, destination, business purpose, and miles driven.⁵ You also need odometer readings at the start and end of the tax year. Records should be made at or near the time of travel. A weekly log is timely; reconstructing months of driving from memory at year-end is not.

State employees follow the DOA guidelines, which tie documentation to specific assignments. Private employees should follow whatever procedure the employer has set in its handbook, typically a mileage log with supporting documents like meeting confirmations. The IRS accepts electronic records, so GPS tracking apps and spreadsheets are fine as long as they capture the required information. Keep your own copies separately from your employer’s system.

Submission deadlines usually tie to payroll cycles, and late claims may be denied under company policy. Wisconsin sets no specific statutory deadline for employers to process reimbursements, but unreasonable delays in paying amounts owed can trigger the state’s wage payment laws.

Collecting Unpaid Reimbursement

If your employer owes you reimbursement under a contract, policy, or collective bargaining agreement and refuses to pay, start by requesting payment directly. The Wisconsin Department of Workforce Development recommends waiting at least six days after that request before filing a formal claim.⁸

If payment still doesn’t come, file a wage claim with the DWD’s Equal Rights Division online or on a paper form.⁸ The DWD lists “expenses” as a type of claim it investigates.⁹ After receiving the claim, the DWD investigates, attempts to settle, and if that fails, issues a determination.¹⁰

You have two years from the date the wages were due to file.¹¹ Miss that window and the DWD cannot act.

If the real issue is that expenses have pushed your pay below minimum wage, you can also file with the U.S. Department of Labor’s Wage and Hour Division under the FLSA, or go directly to court. The federal path is separate from the state process and carries its own remedies.

What the Employer Faces for Refusing to Pay

Wisconsin’s penalties escalate based on how the claim is resolved and how the employer behaves.

If the DWD has previously told an employer to audit its payroll and valid wage claims of the same type keep appearing, the department can order up to 50% on top of the unpaid amount as increased wages.¹²
If you file a lawsuit before the DWD finishes its investigation and settlement efforts, a court can award increased wages of up to 50% of the unpaid amount.¹²
If you go to court after the DWD has investigated and failed to settle, the court can award increased wages of up to 100% of the unpaid amount, effectively doubling the recovery.¹²
An employer who can pay but deliberately refuses, or who falsely denies the validity of a wage claim to harass or defraud the employee, faces a fine of up to $500 and up to 90 days in jail. Each nonpayment to each employee is a separate offense.¹²

When the problem is an FLSA minimum wage violation rather than a broken reimbursement promise, federal penalties apply instead. Under 29 U.S.C. § 216(b), an employer in violation owes the unpaid wages plus an equal amount in liquidated damages, doubling the recovery.¹³ Prevailing employees can also recover attorney’s fees, which makes litigation viable even for small amounts.

1
Wisconsin State Legislature. Wisconsin Code 20.916 – Traveling Expenses
2
Wisconsin Department of Administration. Wisconsin Accounting Manual – Employee Travel
3
eCFR. 29 CFR 531.35 – Free and Clear Payment; Kickbacks
4
Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents
5
Internal Revenue Service. Publication 463 (2025), Travel, Gift, and Car Expenses
6
U.S. Department of Labor. Travel Time
7
Internal Revenue Service. Topic No. 511, Business Travel Expenses
8
Wisconsin Department of Workforce Development. How to File a Wage Claim
9
Wisconsin Department of Workforce Development. Wage Payment and Collection
10
Wisconsin Department of Workforce Development. Labor Standards Complaint Process
11
Wisconsin State Legislature. Wisconsin Statutes 109.09 – Wage Claims
12
Wisconsin State Legislature. Wisconsin Statutes 109.11
13
Office of the Law Revision Counsel. 29 USC 216 – Penalties