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- IRS mileage rates for 2026
- GSA reimbursement for federal civilian travel
- Private employers are different
- Accountable-plan treatment
- What happens when reimbursement exceeds the rate
- Business travel versus commuting
- What the standard rate covers
- Records needed for reimbursement
- Self-employed taxpayers and employees
- A 2026 calculation example
- Sources
Key Facts
- IRS business rate: The optional rate is 72.5 cents per mile for January–June 2026 and 76 cents for July–December 2026.
- Private employers: The IRS rate does not generally require every private employer to reimburse mileage at that amount.
- Federal travelers: GSA’s current rates effective July 1, 2026 are 76 cents per mile for an authorized privately owned automobile and 23.5 cents when a government automobile is available.
- Accountable plans: A substantiated business-mileage reimbursement can be excluded from wages when the arrangement meets federal accountable-plan rules.
- Commuting: Ordinary travel between home and a regular work location is generally personal commuting, not business mileage.
- Records: A mileage log should show the date, destination, business purpose, and business miles for each trip.
“Federal mileage reimbursement rate” can describe two related but different rules. The IRS publishes optional standard mileage rates for tax and accountable-plan purposes, while GSA establishes reimbursement rates for federal civilian travel under the Federal Travel Regulation.
The distinction became unusually important in 2026 because both agencies revised rates at midyear. Always match the rate to the travel date, payer, and governing policy.
IRS mileage rates for 2026
For business transportation from January 1 through June 30, 2026, the IRS rate is 72.5 cents per mile. For business transportation from July 1 through December 31, 2026, Announcement 2026-11 raises the rate to 76 cents per mile.
The medical and qualifying moving rate is 20.5 cents for the first half of 2026 and 23.5 cents for the second half. The charitable-service rate remains 14 cents per mile because it is fixed by statute.
The second-half rates apply to expenses paid or incurred on or after July 1. For an employee allowance, the revised rate applies when both the payment and the underlying transportation expense occur on or after July 1, 2026.
GSA reimbursement for federal civilian travel
GSA Bulletin FTR 26-02 initially set the January 1–June 30, 2026 privately owned automobile rate at 72.5 cents per mile when use was authorized or no government-furnished automobile was authorized and available. For that same first-half period, the government-automobile-available rate was 20.5 cents, the motorcycle rate was 70.5 cents, and the privately owned airplane rate was $1.78 per statute mile.
GSA’s current rate table, last updated July 30, 2026, lists higher rates effective July 1, 2026: 76 cents for an authorized privately owned automobile, 23.5 cents when a government automobile is available, 74 cents for a motorcycle, and $1.935 for a privately owned airplane. The moving-purpose rate is also 23.5 cents.
Federal travelers should use the rate applicable on the travel date and follow their agency’s travel authorization and reimbursement process. FTR Bulletin 26-02 remains useful for the superseded first-half rates, but it is not the current rate table for travel on or after July 1.
Private employers are different
Federal tax law does not generally compel every private employer to pay the IRS standard mileage rate. An employer may reimburse actual vehicle expenses, use a mileage allowance, pay a different amount, or apply a state-law or contractual rule.
State wage law can require reimbursement of necessary work expenses even when federal law does not. Collective bargaining agreements, employment contracts, handbooks, grant terms, and industry rules can also control.
The IRS rate is therefore a federal tax benchmark, not a universal minimum reimbursement rate for private employment.
Accountable-plan treatment
An employer reimbursement is generally excluded from wages under an accountable plan when the expense has a business connection, the employee adequately accounts for it within a reasonable period, and the employee returns any excess within a reasonable period.
A mileage allowance at or below the applicable federal rate can be treated as substantiated for amount when the employee documents business purpose and miles. The substantiated nontaxable portion is not subject to federal income-tax withholding or employment taxes.
Payments under a nonaccountable plan are wages. They are included on Form W-2 and generally subject to income, Social Security, Medicare, and FUTA taxes.
What happens when reimbursement exceeds the rate
Paying more than the federal rate does not make the entire reimbursement taxable. Under an otherwise qualifying arrangement, the amount up to the substantiated federal rate can remain nontaxable while the excess is treated as wages.
The employer must identify the excess, withhold applicable taxes, and report it properly. If the employee fails to substantiate the trip or return excess advances, broader amounts can become taxable.
See the guide to federal tax withholding for the wage-withholding framework that applies to taxable excess reimbursements.
Business travel versus commuting
Ordinary travel between a residence and a regular workplace is generally nondeductible commuting, even when the trip is long or the employee performs incidental tasks along the way.
Travel between business locations during the workday is generally business mileage. Trips from a qualifying home office that is the taxpayer’s principal place of business to another work location can also receive different treatment from ordinary commuting.
Temporary work locations, multiple jobs, overnight travel, and transportation of tools have fact-specific rules. A vehicle used for both personal and business purposes requires allocation.
What the standard rate covers
The business standard mileage rate is designed to account for fixed and variable automobile costs, including depreciation, fuel, maintenance, insurance, and registration. A taxpayer generally cannot use the standard rate and separately deduct those same operating costs.
Business parking fees and tolls may be separately deductible or reimbursable when properly substantiated. Fines, personal parking, and commuting costs are not converted into business expenses by using a mileage log.
A taxpayer choosing between actual expenses and the standard mileage method must follow method-election and vehicle-eligibility rules. The standard method is not available in every fleet, depreciation, or leasing situation.
Records needed for reimbursement
A reliable contemporaneous log records the date, starting point, destination, business purpose, and business miles. Beginning and ending odometer readings support the business-use percentage for the year.
Calendar entries, customer records, work orders, receipts, and route records can corroborate the log. Estimates recreated at tax time are less persuasive than records made near the trip date.
Employers should state the covered vehicles, rate periods, submission deadline, approval process, required evidence, treatment of tolls and parking, and procedure for returning excess advances.
Self-employed taxpayers and employees
A self-employed taxpayer may use the applicable optional rate to calculate qualifying business vehicle expense, subject to method and substantiation rules. The rate changes based on when the miles were driven in 2026.
Unreimbursed employee business travel generally is not deductible as a federal miscellaneous itemized deduction under current law. That restriction does not prevent an employer from using an accountable reimbursement plan.
State income-tax deductions can differ. A federal reimbursement rule does not establish whether a state allows an employee expense deduction or requires the employer to reimburse it.
A 2026 calculation example
Suppose a private-sector employee drives 400 substantiated business miles in May and 500 in August. An employer using the IRS rates would calculate $290 for May (400 × $0.725) and $380 for August (500 × $0.76), for $670 total.
The result assumes the trips are business travel, the dates and miles are documented, and the employer applies the IRS benchmark. It does not determine what a federal agency, state law, or employment agreement requires.
