Mileage reimbursement guide for 2025

Learn the 2025 IRS mileage rate, what counts as reimbursable business mileage, and how to automate compliance with Rho’s expense management platform.

Illustration of a teal receipt printer with digital checkmarks and a printed receipt showing graphs and data.
  • The 2025 IRS standard mileage rate is 70 cents per mile for business use, up from 67 cents in 2024.

  • Mileage reimbursement covers gas, maintenance, insurance, and depreciation, but not commuting or tolls.

  • Reimbursements under an accountable plan with proper documentation remain non-taxable.

  • California, Illinois, and Massachusetts require employers to reimburse business-related vehicle use.

  • Rho automates mileage tracking, calculation, and reimbursement with integrated expense management.

Mileage reimbursement is one of those business expenses that seems simple until you have to manage it at scale. For finance teams, it touches compliance, documentation, and tax treatment. For employees, it’s about being fairly compensated for using personal vehicles for business purposes.

This guide explains the 2025 IRS mileage rates, what qualifies as reimbursable business mileage, how to calculate and track reimbursements, and how we simplify compliance for finance teams through automation.

What is mileage reimbursement?

Mileage reimbursement compensates employees for using their personal vehicles for business travel. It covers the cost of fuel, maintenance, insurance, depreciation, and general wear and tear.

The key distinction is between business purposes and personal use. Reimbursable mileage includes trips to client meetings, vendor sites, or off-site company events. Daily commuting between home and the regular workplace does not qualify.

For example, say a field manager drives 45 miles to inspect a vendor site. That trip qualifies for reimbursement, but the same employee’s daily commute to the office does not.

What is the IRS standard mileage rate?

The IRS standard mileage rate is a fixed amount per mile that businesses can use to reimburse employees or deduct from taxes for business use of personal vehicles. It reflects the average cost of operating a vehicle, including gas, maintenance, and depreciation.

The IRS updates this rate each year based on national cost data. Here are the 2025 federal mileage rates:

Purpose

2025 Rate

Notes

Business

70¢/mile

Standard reimbursement benchmark

Medical/Moving

21¢/mile

For active-duty military and medical care

Charitable

14¢/mile

Set by Congress

The business rate is the most common benchmark for employee reimbursements. Companies can choose to pay more or less, but reimbursements above the IRS rate may be taxable.

What is the current mileage reimbursement rate?

The IRS mileage rate for business use increased from 67 cents per mile in 2024 to 70 cents per mile in 2025, reflecting higher costs for fuel, insurance, and maintenance.

These changes show why finance teams need systems that adapt automatically. Manual spreadsheets often lag behind IRS updates, leading to underpayment or compliance issues.

Rho automatically applies new IRS rates when they take effect, ensuring reimbursements remain accurate without requiring manual updates.

Is mileage reimbursement taxable income?

Mileage reimbursement is not taxable income when paid under an accountable plan that meets IRS requirements. Under this structure, reimbursements at or below the IRS rate are excluded from wages and do not appear on W-2 forms.

If a company uses a non-accountable plan, reimbursements are treated as taxable compensation and must be reported as income.

Plan type

Tax treatment

Key requirements

Accountable

Non-taxable

Business purpose, documentation, submission within 30–60 days

Non-accountable

Taxable

Missing documentation or late submission

Most companies use accountable plans to avoid payroll tax exposure. 

What does mileage reimbursement cover (and not cover)?

Mileage reimbursement covers the full operating costs of using a personal vehicle for business purposes. According to the Internal Revenue Service’s guidance in Publication 463, the IRS standard mileage rate is designed to account for expenses such as fuel and oil, maintenance and repairs, depreciation, insurance, and registration or licensing feesIt does not cover daily commuting between home and a regular workplace, personal errands, parking fees and tolls (which must be filed separately), traffic fines or tickets, or any vehicle upgrades or modifications made for personal convenience.

State mileage requirements

Under federal law, employers aren’t required to reimburse employees for mileage or other business-related expenses. The IRS only issues the standard mileage rate as a benchmark for tax purposes, which can be deducted or considered non-taxable when reimbursing under an accountable plan. At the federal level, mileage reimbursement is optional unless a company chooses to provide it.

States, however, can and do impose their own requirements that exceed these standards. In states like California, Illinois, and Massachusetts, employers must reimburse employees for business expenses, which include the cost of using a personal vehicle for work-related travel. Here’s the breakdown:

California

  • Legal requirement: California Labor Code Section 2802 requires employers to reimburse employees for all necessary business-related expenses, including vehicle use.

  • Rate: The law does not specify a reimbursement rate. However, the California Department of Human Resources (CalHR) has adopted the IRS 70-cents-per-mile rate for 2025 as the guideline for state employees. Private employers aren’t required to use this exact rate, but paying less could expose them to legal risk if reimbursements don’t fully cover employees’ out-of-pocket costs.

  • Excluded travel: The rule mirrors federal standards—daily commuting between home and a regular workplace is not eligible for reimbursement.

Illinois

  • Legal requirement: The Illinois Wage Payment and Collection Act (820 ILCS 115/9.5) requires employers to reimburse employees for “necessary expenditures or losses” incurred within the scope of employment.

  • Rate: The statute doesn’t establish a specific rate, but most employers typically use the IRS standard mileage rate to meet compliance expectations.

  • Excluded travel: Normal commuting and non-business travel are not reimbursable.

Massachusetts

  • Legal requirement: Massachusetts General Laws Chapter 149, Section 148C, interpreted through state wage regulations, requires timely reimbursement for employee business expenses when incurred for the employer’s benefit.

  • Rate: No mandated rate, but complying with the IRS standard mileage rate is a practical safe harbor.

  • Excluded travel: Like California and Illinois, normal commuting between home and a regular office or worksite does not qualify.

At the federal level, mileage reimbursement is voluntary, serving as a tax framework rather than a compliance rule.

At the state level, certain jurisdictions legally require reimbursement to ensure employees aren’t paying business costs out of pocket. Companies operating across multiple states must therefore align policies not just with the IRS but also with state-specific labor codes to avoid wage claims or penalties.

How to calculate and track mileage reimbursement

The formula is simple:

Business miles driven × current reimbursement rate = total reimbursement

Example:100 miles × $0.70 = $70 reimbursement

Employees should record:

  • Date of travel

  • Starting and ending locations

  • Business purpose

  • Total miles driven

Rho calculates mileage automatically within our expense management workflows. Employees log trip details once, and the system applies the correct rate, validates the business purpose, and syncs approved reimbursements with accounting systems like QuickBooks and NetSuite.

Some businesses prefer tracking their reimbursement using the actual expenses method instead of the standard mileage rate. This method calculates the actual cost of operating a vehicle for work-related travel by totaling fuel, maintenance, insurance, depreciation, and registration fees, then applying a percentage for business use based on total miles driven. 

While it requires detailed recordkeeping, it can be more accurate for high-mileage drivers or companies with vehicle fleets. The Internal Revenue Service (IRS) permits this method if records are properly maintained and expenses are reported on year-end tax returns.

How to create a mileage reimbursement policy

A clear policy keeps reimbursements consistent and compliant.

Five steps to build your policy:

  1. Define eligible travel: Specify what counts as business travel and what does not. Include examples for clarity.

  2. Set your reimbursement rate: Use the IRS standard rate or a company-defined rate. Document how and when it updates.

  3. Outline documentation requirements: Require mileage logs or digital records and set submission deadlines (typically 30–60 days).

  4. Establish approval workflows: Define who reviews claims and when additional approval is needed.

  5. Review annually: Update your policy each year to reflect IRS rate changes and company growth.

What are the benefits of mileage reimbursement?

A structured mileage reimbursement process benefits both employees and finance teams.

For finance teams:

  • Tax-deductible business expense

  • Predictable budgeting and forecasting

  • Reduced payroll tax exposure

For employees:

  • Fair compensation for business use of personal vehicles

  • Transparent and timely payments

  • Simplified recordkeeping

For the business overall:

  • Improved compliance and audit readiness

  • Consistent policy enforcement

  • Better morale among travel-heavy roles

Tax implications for employees, employers, and self‑employed individuals

Mileage reimbursement affects each group differently, depending on how payments are structured and reported to the IRS.

For employees

When reimbursements are made under an accountable plan, they are non‑taxable. To qualify, the employee must document the business purpose, mileage, and date of travel, and submit the claim within a reasonable timeframe (generally 30–60 days). These payments don’t appear on the employee’s W‑2 and aren’t subject to income or payroll taxes.

If documentation is missing or the employer pays above the IRS standard mileage rate, the excess amount counts as taxable wages and must be reported as income.

For employers

Employers can deduct mileage reimbursements as ordinary and necessary business expenses under Internal Revenue Code Section 162, provided the payments were made under an accountable plan. Accurate documentation protects businesses during audits and helps avoid disputes over improper reimbursements.

If a company reimburses outside an accountable plan, those payments are treated like regular wages: they’re subject to income tax withholding, Social Security, and Medicare contributions.

For self‑employed individuals

Self‑employed taxpayers can deduct vehicle expenses related to their business on Schedule C using either the standard mileage rate or the actual expenses method. The standard rate simplifies recordkeeping but must be applied consistently from the first year the vehicle is used for business. Switching to the actual cost method later requires detailed logbooks and receipts for gas, insurance, maintenance, and depreciation.

Personal trips are never deductible, and daily commuting between home and a primary place of business remains excluded.

For every taxpayer, the IRS focuses on documentation and purpose. Whether claiming a deduction or issuing reimbursements, maintaining clear mileage logs ensures compliance and protects both employees and employers from taxable exposure.

What are some common mileage reimbursement mistakes?

Even small errors can create compliance issues. Common pitfalls include:

  • Mixing personal and business mileage leads to inaccurate reimbursements.

  • Using outdated IRS rates can result in underpayment or tax exposure.

  • Inconsistent documentation weakens audit defense.

  • Delayed approvals can cause reimbursements to exceed IRS deadlines.

We prevent these issues with automated rate updates, standardized documentation, and approval workflows that keep reimbursements on schedule.

How Rho simplifies mileage reimbursement

Setting up mileage reimbursement in Rho takes minutes and keeps your policies compliant automatically.

1. Confirm the current IRS mileage rate

Each year, Rho automatically updates the IRS standard mileage rate in your account settings. You can confirm the active rate or adjust it if your company uses a custom reimbursement rate for specific roles or states.

2. Activate mileage reimbursement in Rho’s expense management settings

Enable mileage reimbursement directly within our expense management dashboard. Once active, employees can start logging business trips from the Rho web or mobile app, with mileage automatically calculated based on starting and ending locations.

3. Configure policy rules for receipts, per diems, and approval tiers

Add structure to your program by defining the rules around documentation and approvals. Set requirements for proof of travel, such as GPS-based mileage logs or Google Maps entries, and outline approval workflows by department or spend limit. You can also combine mileage reimbursement with per diem allowances or travel budgets for more comprehensive control.

4. Share the policy with employees

Publish the reimbursement policy directly through Rho or your internal workspace. Clear communication ensures employees understand what qualifies as business travel, how to submit mileage claims, and how timelines align with payroll or reimbursement cycles.

5. Automate payouts through Rho checking accounts

Once approved, reimbursements are sent automatically through your Rho checking account; no manual payment runs or separate payroll cycles are required. Finance teams can track reimbursements in real-time, while accounting integrations sync each transaction with QuickBooks, NetSuite, or Sage Intacct for clean month-end reporting.

Setting up mileage reimbursement in Rho takes minutes and keeps your policies compliant automatically.

Manage mileage reimbursement in one frictionless platform

With Rho, finance teams and founders get simple, powerful business banking. Manage mileage reimbursement alongside cards, bill pay, and expense controls, all in one platform. 

Get started with Rho today.

FAQs

How do I calculate mileage reimbursement?

Multiply business miles driven by the current Internal Revenue Service (IRS) standard rate. For 2025, that’s 70¢ per mile. Example: if you drove 120 business miles, your reimbursement amount would be $84.

Is mileage reimbursement taxable income?

Mileage reimbursements are not taxable income if paid under an accountable plan following IRS rules. Late, undocumented, or excessive payments may be treated as taxable wages and must be reported on employee tax returns.

Can self-employed individuals claim mileage reimbursement?

Yes. Self-employed taxpayers can deduct mileage for work-related business travel when filing their tax returns. Only trips tied directly to business purposes qualify, such as client meetings or deliveries. Daily commuting to a regular workplace does not.

Should I use the standard mileage rate or the actual cost method?

The IRS allows either method. The standard mileage rate applies a flat amount per mile, simplifying tracking. The actual cost method requires documenting actual expenses like fuel, maintenance, insurance, and depreciation, then prorating costs based on business vs. personal use. Businesses with high mileage may find actual costs more accurate, while most choose the standard rate for ease.

What counts as proof of mileage?

Acceptable proof includes mileage logs, odometer readings, or GPS-based trip records showing the date, business purpose, starting point, and total miles driven. These records help verify the actual cost of work-related business travel during audits or when filing tax returns.

Where can I find the official IRS mileage rate?

The most recent rate is published annually in IRS Publication 463 and the corresponding notice, such as IRS Notice 2025-03. These documents outline the Internal Revenue Service standards for reimbursing or deducting business-related vehicle use.