Mileage reimbursement is a way to recognize the efforts of employees who use their vehicles for work. A lot of confusion surrounds determining mileage rates and reimbursable expenses. This guide will clarify those questions.
Quick Answer: How Do You Calculate Mileage Reimbursement in 2026?
To calculate mileage reimbursement, multiply approved business miles by the reimbursement rate for the period when the miles were driven. For 2026, the IRS business mileage rate is 72.5 cents per mile from January 1 through June 30 and 76 cents per mile from July 1 through December 31.
For example, 1,000 approved business miles driven in the first half of 2026 would equal $725. The same 1,000 business miles driven in the second half of 2026 would equal $760.
Employers can use the IRS business mileage rate, a company-set mileage rate, actual expense reimbursement, or FAVR. The best method depends on business mileage, vehicle costs, employee location, documentation requirements, and whether the reimbursement needs to be tax-free.
Understanding Mileage Reimbursement
Mileage reimbursement allows businesses to compensate employees for using their vehicles for work-related travel. It covers fuel, insurance, depreciation, wear and tear, and other auto-related expenses. The IRS sets a standard mileage rate every year as a guideline for calculating reimbursement.
For Employers
When it comes to reimbursing expenses, employers have two options. The first option is mileage reimbursement using the IRS business mileage rate or a FAVR reimbursement plan. The second option is to reimburse receipts for actual expenses.
Many employers use the IRS business mileage rate or FAVR because these methods can reduce the administrative burden compared with reimbursing individual receipts. Payments can generally be tax-free when they are tied to documented business use and paid under an accountable plan or IRS-compliant reimbursement method.
For Employees
Most W-2 employees cannot deduct unreimbursed business mileage on their federal tax return under current federal tax rules. That makes a properly documented mileage reimbursement or FAVR program more valuable for employees who use a personal vehicle for work.
Some states, including California, Massachusetts, and Illinois, have employee expense reimbursement rules that may require employers to reimburse necessary business vehicle expenses. Employers should review the rules that apply where employees work before setting a mileage reimbursement policy.
Contractors and self-employed workers may generally claim qualified business mileage on their tax returns using the IRS standard mileage rate or the actual expense method. However, they need accurate mileage records to support the deduction.
Reimbursing the 2026 IRS Mileage Rate
The IRS mileage rate is a standard rate set by the Internal Revenue Service. It considers vehicle operating costs such as fuel, maintenance, depreciation, insurance, and other ownership costs.
For 2026, the IRS business mileage rate is:
- 72.5 cents per mile for business miles driven January 1 through June 30, 2026
- 76 cents per mile for business miles driven July 1 through December 31, 2026
The IRS adjusted the second-half 2026 rate due to higher fuel prices. Employers should apply the correct rate based on when the business miles were driven, not only when the reimbursement is processed.
The IRS rate is a national benchmark. It can simplify reimbursement, but it may not accurately reflect each employee’s actual vehicle costs, especially when employees work in different regions, drive different mileage, or have different insurance, fuel, maintenance, and depreciation costs.
Breaking Down Mileage Expense
The list of reimbursable expenses helps explain why adopting a mileage-based or fixed-and-variable rate (FAVR) reimbursement is essential. Any plan that reimburses these expenses via receipts will create administrative headaches.
AAA’s latest available Your Driving Costs analysis can help employers understand why vehicle reimbursement rates should account for more than just fuel. The 2025 analysis found that the average annual cost to own and operate a new vehicle was $11,577, or about $965 per month. Compared with 2024, costs declined because of lower depreciation, lower finance charges, lower fuel prices, and a shift toward more affordable vehicles.
These figures are useful as cost benchmarks, but employers should still review current fuel, insurance, maintenance, vehicle, and regional cost data when setting a 2026 mileage reimbursement rate.
Depreciation Costs per Year
Depreciation is the loss of a vehicle's value over time. AAA’s 2025 analysis found that depreciation averaged $4,334 per year, down from $4,680 in 2024.
Depreciation will vary depending on the vehicle’s purchase price, age, resale value, and market conditions. Because a national mileage rate uses broad averages, an employee’s actual depreciation may not match the IRS rate. This is one reason employers that use a FAVR vehicle plan typically base rates on a standard vehicle profile rather than each employee’s personal vehicle.
Fuel Costs per Mile
Fuel costs vary by region, vehicle type, fuel efficiency, and driving patterns. AAA’s 2025 analysis found that average fuel cost dropped to 13.00 cents per mile, while regular-grade gasoline for the vehicles studied averaged $3.151 per gallon.
Even with a national fuel benchmark, actual fuel costs can vary significantly by location. A national mileage rate cannot fully account for differences in local fuel prices, route patterns, or vehicle fuel efficiency.
IRS Fuel Reimbursement Rules
The IRS mileage rate already includes fuel in the cents-per-mile calculation. Employers should avoid reimbursing the same business vehicle cost twice. If an employee receives both mileage reimbursement and separate fuel reimbursement for the same trip, part of the payment may need to be treated as taxable or adjusted under the company’s accountable-plan process.
Fuel cards, gas receipts, and mileage reimbursement should be clearly defined in the company policy, so employees understand what is included, what is separate, and what documentation is required.
Other Reimbursed Expenses
Apart from mileage, businesses may reimburse other vehicle-related expenses, such as parking fees and tolls. These should be documented and submitted alongside the mileage reimbursement form. Mileage reimbursement rates may not include tolls, but they do include several other expenses.
Wear and Tear
Wear and tear refers to the gradual damage that occurs to a vehicle over time. It is often a catch-all term for routine maintenance and repairs, including tire replacements. The IRS mileage rate accounts for wear and tear, so there's no need to calculate it separately. However, it helps to understand how much these expenses amount to.
AAA cost data can help employers estimate maintenance, repair, and tire expenses, but these costs vary by vehicle type, mileage, labor rates, and driving conditions. Employers should also review which expenses are actually necessary business vehicle costs before including them in a reimbursement policy. This is because an extended warranty is not a necessary vehicle expense.
License, Registration, and Taxes
Many people forget that government fees and taxes are reimbursable expenses for vehicles. These costs may not amount to much compared to depreciation, fuel, or maintenance, but they do factor into overall costs. These fees vary by location, as some states do not tax vehicle ownership, and some localities charge higher fees than others.
However, the business-use portion of these expenses is reimbursable since a vehicle owner must pay license, registration, and taxes. Both the IRS mileage rate and FAVR rates take these fees into account. FAVR programs factor in the actual location, making the reimbursement more accurate.
Auto Insurance Premiums
Mileage reimbursement rates may account for the business-use portion of auto insurance costs. Insurance costs vary by state, coverage level, vehicle type, driving history, and insurer. Because location plays a major role in insurance premiums, a single national mileage rate may not reflect what each employee actually pays.
For this reason, a FAVR vehicle plan can separate insurance costs by location and reimburse them more accurately. The auto insurance declarations page provides a summary of the employee’s insurance policy, including coverage limits and deductibles.
When using a personal vehicle for business, ensure your insurance covers business travel. This step is crucial to protect the employee and the company from potential liabilities associated with work-related travel incidents. Employees should review their auto insurance declarations regularly to ensure they have the necessary coverage.
Are Car Payments a Reimbursable Expense?
The cost to finance a vehicle is not a reimbursable expense. This is because car payments consist of interest payments to the lender. Interest on the vehicle's cost is not a strictly necessary expense of ownership.
Furthermore, the cost of owning the vehicle is already a factor in the depreciation category. Depreciation considers the difference between the price you paid for a vehicle and the price you can sell it for year over year. This price steadily decreases over time, making that decrease an expense of ownership.
How to Calculate a Mileage Reimbursement in 2026
The formula is:
Business miles × reimbursement rate = mileage reimbursement
For 2026, employers should use the rate that applies to the date the business miles were driven.
Examples:
- 1,000 miles from January–June 2026: 1,000 × $0.725 = $725
- 1,000 miles from July–December 2026: 1,000 × $0.76 = $760
- 15,000 miles all reimbursed at 72.5¢: 15,000 × $0.725 = $10,875
- 15,000 miles all reimbursed at 76¢: 15,000 × $0.76 = $11,400
If an employee drove business miles in both halves of 2026, calculate each period separately, then add the totals.
Cents-Per-Mile Cost Differences
Vehicle costs do not affect every driver equally. Fixed costs, such as insurance, depreciation, registration, and taxes, are spread across the number of miles driven. As annual mileage increases, the fixed cost per mile generally decreases.
That means a single national cents-per-mile rate may over-reimburse some high-mileage drivers and under-reimburse lower-mileage drivers or employees in higher-cost regions. Fuel, insurance, maintenance, and depreciation can also vary by territory and vehicle type.
This is one reason some businesses evaluate FAVR instead of relying only on the IRS mileage rate. A FAVR program separates fixed and variable vehicle costs, allowing reimbursement to adjust based on mileage, location, and cost assumptions.
Using a Mileage Reimbursement Calculator
Using a mileage reimbursement calculator can simplify the process. Input your total miles and the current IRS rate, and it will automatically calculate your reimbursement. These calculators often come with additional features, such as the ability to store trip histories and generate detailed reports, which can be helpful in tax filings and audits.
A standardized mileage reimbursement form streamlines the process and ensures all necessary information is collected. A well-structured form can serve as a document for both internal record-keeping and external audits.
Key Elements of a Mileage Reimbursement Form
- Employee Information: Name, department, and contact details.
- Trip Details: Date, purpose, starting location, and destination.
- Mileage Details: Total miles driven and the reimbursement rate.
- Approval Signatures: Space for employee and manager signatures to approve the reimbursement.
A well-structured form facilitates smooth processing and acts as a record for future reference, aiding in financial audits and compliance checks.
Automated Mileage Tracking
An automated mileage tracker is even better than a mileage form or calculator. Many businesses have adopted mobile apps that track business mileage in real time. Drivers can then remove any personal trips before submitting mileage for approval.
The best mileage apps have several features to facilitate the process of mileage reimbursement:
- Hands-free mileage tracking for safety and accuracy
- Trip information is imported automatically using GPS
- Mileage reimbursement is calculated using the IRS rate or FAVR rate
- Route planning tool to ensure efficient routing
- Low battery drain when operating in the background
- Administrative dashboard to streamline approval and generate reports
Independent contractors can also benefit from a mileage-tracking app to streamline the tax-deduction process.
Mileage Reimbursement or FAVR in 2026?
Calculating mileage reimbursement does not have to be complicated if employees track business miles accurately and employers apply the correct 2026 rate for the reimbursement period. The IRS mileage rate is straightforward and may work well for simple programs with similar driving patterns.
FAVR can be a better fit when employees drive in different territories, work in different cost regions, or have different mileage levels. Unlike a single national cents-per-mile rate, FAVR separates fixed costs, such as insurance, depreciation, and registration, from variable costs, such as fuel, maintenance, and tires.
Both mileage reimbursement and FAVR can be tax-free when IRS requirements are met, and business mileage is properly documented.
Not sure whether the 2026 IRS mileage rate, a company-set mileage rate, or FAVR is the right fit? mBurse can help you compare reimbursement methods, calculate fair rates, and identify where your current program may be overpaying, underpaying, or creating unnecessary tax waste.
FAQs About Calculating Mileage Reimbursement in 2026
How do you calculate mileage reimbursement in 2026?
To calculate mileage reimbursement in 2026, multiply approved business miles by the reimbursement rate that applies when the miles were driven. For 2026, the IRS business mileage rate is 72.5 cents per mile from January 1 through June 30 and 76 cents per mile from July 1 through December 31.
What is the 2026 IRS mileage reimbursement rate?
The 2026 IRS business mileage rate is 72.5 cents per mile for business miles driven January 1 through June 30, 2026 and 76 cents per mile for business miles driven July 1 through December 31, 2026. Employers should apply the rate based on when the business miles were driven, not just when reimbursement is processed.
What expenses are included in mileage reimbursement?
Mileage reimbursement can account for vehicle expenses such as fuel, insurance, depreciation, maintenance, wear and tear, license fees, registration, and taxes. Some expenses, such as tolls and parking, may need to be reimbursed separately when they are not included in the mileage rate.
Can employers reimburse fuel separately from mileage?
Employers should avoid reimbursing the same vehicle cost twice. Since the IRS mileage rate already includes fuel in the cents-per-mile calculation, a separate fuel reimbursement for the same trip may need to be treated as taxable or adjusted under the company’s accountable-plan process.
Is mileage reimbursement tax-free?
Mileage reimbursement is generally tax-free when it is tied to documented business use and paid under an accountable plan or an IRS-compliant reimbursement method. Employees should keep accurate mileage records showing business miles, trip details, and the purpose of each trip.
Is FAVR better than the IRS mileage rate?
FAVR may be a better fit when employees drive in different territories, work in different cost regions, or have different mileage levels. Unlike a single national cents-per-mile rate, FAVR separates fixed costs such as insurance and depreciation from variable costs such as fuel, maintenance, and tires.