What Is Included in Mileage Reimbursement: Rate, Taxes, Records

Mileage reimbursement paid at the 2026 IRS standard rate of 72.5 cents per mile is designed to cover every routine cost of operating your personal vehicle for work: gasoline, depreciation, insurance, maintenance and repairs, and registration fees are all folded into that single figure.¹ Parking fees and tolls tied to a specific business trip fall outside the rate and can be reimbursed on top of it. Almost everything else you might spend money on to keep the car running is considered already paid for by the per-mile amount.

What the Per-Mile Rate Covers

The 72.5-cent figure for 2026 is a package deal built from a nationwide study of what it costs to keep a car on the road. An independent contractor runs that study for the IRS each year, and the resulting rate reflects an average blend of fixed and variable ownership costs.¹ Once you receive that per-mile amount, you cannot separately claim any of the individual costs baked into it.

The rate covers:

Depreciation — the gradual loss of the car’s value as it ages and accumulates miles. The IRS treats 35 cents of each 2026 mile as depreciation.¹
Fuel: gasoline, diesel, or electricity.
Maintenance and repairs: oil changes, brake work, tires, and routine upkeep.
Insurance premiums on the vehicle.
Annual state registration fees.

Because all of those costs are already inside the rate, you cannot hand your employer a gas receipt or a mechanic’s invoice and expect a separate payment. The per-mile math averages out over time: some months you spend more on repairs, some months less, and the rate is meant to wash it out across the year.

The same rate applies whether you drive a gasoline car, a diesel, a hybrid, or a fully electric vehicle. The IRS does not publish a separate EV rate.²

What Gets Reimbursed Separately

A short list of costs stays outside the per-mile rate because they depend on where you go, not how far you drive. Parking fees at a client’s office or a business event are the main one. Tolls for bridges, tunnels, and managed lanes are the other.³ Both must be tied directly to a business trip.

Not every parking charge qualifies. Parking at your regular workplace is a commuting expense and cannot be reimbursed tax-free.³ Parking at a client site during a sales call is reimbursable; the monthly garage bill at your own office is not.

Traffic tickets and other fines are never reimbursable or deductible, even if you were driving for work when you got them.³

Which Miles Actually Qualify

The rate only pays out on miles the IRS treats as business miles, and the sharpest line is between commuting and business travel. Driving from your home to your regular workplace is commuting, and commuting never counts, no matter how long the drive or how much work you do on the way.³

Once you arrive at your regular workplace, driving from there to a client, a second office, or another business destination counts. Trips between two business locations on the same day count. A few situations stretch the rule further:

Temporary work locations. If you are sent to a site realistically expected to last one year or less, travel from home to that site is business mileage rather than commuting. Once the assignment is expected to run longer than a year, it becomes your new regular workplace and the commuting rule takes over.³
Home office as principal place of business. If your home office qualifies as your principal place of business, driving from home to any other work location in the same trade or business counts as business mileage.³
Overnight business travel. When work takes you far enough from your tax home that you need to sleep or rest before continuing, you are traveling away from home, and the travel expenses qualify.³

How the Reimbursement Is Taxed

Whether the money shows up as taxable wages depends on how your employer structures the plan. Most employers use what the IRS calls an accountable plan, and payments under an accountable plan stay off your W-2 entirely. To qualify, the plan has to meet three conditions: the expense must have a business connection, you must substantiate it to your employer with the date, destination, purpose, and miles, and you must return any reimbursement that exceeds what you substantiated.⁴

Two things can push a reimbursement into taxable territory. First, if your employer pays more than 72.5 cents per mile, the excess is taxable wages. Pay of 80 cents per mile means the first 72.5 cents is tax-free and the remaining 7.5 cents per mile is added to Box 1 of your W-2. Second, if you fail to return excess amounts within a reasonable time, the unsubstantiated portion becomes taxable.

Reimbursement below 72.5 cents per mile generally cannot be made up on your own return. The Tax Cuts and Jobs Act eliminated the deduction for unreimbursed employee business expenses for tax years 2018 through 2025. Whether that deduction returns for 2026 depends on Congressional action. Self-employed workers are not affected by that limitation and continue to deduct vehicle expenses on Schedule C.

The Records You Need

Federal tax law requires substantiation of the amount, the time and place of travel, and the business purpose for every vehicle expense claimed.⁵ In practice, your mileage log needs four elements for each trip:

Date of the trip.
Destination — city, town, or area.
Business purpose: client meeting, delivery, site visit, and so on.
Miles driven for the trip, plus your yearly total.³

The IRS gives far more weight to records made at or near the time of the trip than to a log reconstructed from memory weeks later.³ A GPS-based tracking app handles this automatically, and electronic records are accepted as long as they capture the required elements. If you are separately reimbursed for tolls or parking, keep the receipts and match each one to the corresponding trip in your log.

The math at the end is straightforward. Multiply your business miles by 72.5 cents, then add any documented parking and toll charges. Four hundred business miles in a month works out to 400 × $0.725, or $290.00, before any parking or tolls are added on.¹ Under a properly run accountable plan, that amount reaches you as a non-taxable payment, separate from wages.

1
Internal Revenue Service. 2026 Standard Mileage Rates (Notice 2026-10)
2
Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents
3
Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses
4
Internal Revenue Service. Revenue Ruling 2006-56 – Section 62(c) Reimbursement Arrangements
5
Office of the Law Revision Counsel. 26 U.S. Code 274 – Disallowance of Certain Entertainment, Etc., Expenses