It’s 4:38 on a December Friday, and Eli is sitting in his pickup trying to remember eleven months of driving. Customer calls. Supply runs. Emergency detours. Maybe a few commutes mixed in. His bookkeeper asked for mileage, so he sends the only number he has: “3,000 work miles.”
That number might turn into a $2,175 reimbursement under the 2026 IRS mileage rate of 72.5 cents per mile, effective January 1. But the real question is not whether Eli drove. It’s whether the business can show where he drove, why he drove there, and whether those miles were actually business mileage vs commuting.
The 72.5-Cent Rate Is Not the Real Problem
The federal business standard mileage rate rises 2.5 cents in 2026, from 70 cents to 72.5 cents per mile. For Eli’s 3,000 miles, that is a $75 increase over last year’s calculation.
Seventy-five dollars is not what keeps owners up at night. The bigger issue is whether the full $2,175 belongs outside wages as reimbursement, inside job costs as a margin factor, and inside the company’s records with enough proof to stand up later.
The optional standard rate applies to cars, vans, pickups, and panel trucks, whether they run on gas, diesel, hybrid power, or electricity. That sounds simple until real life gets involved: home-to-shop commutes, customer visits, parts runs, school drop-offs, and Saturday hardware-store stops.
A mileage reimbursement log turns that blur into usable information. Without it, payroll may be guessing, the bookkeeper may be cleaning up old messes, and the owner may be missing what travel is doing to job profitability.
Draw the Line Between Commuting and Business Miles
IRS Publication 463 says business travel records should establish the amount, time, place, and business purpose of each expense. For mileage, that means a year-end total is weak. A same-day record is much stronger.
Here’s the clean question for a small team: where does work begin?
For many businesses, home to a regular workplace is commuting. Shop to customer is business travel. Customer to supply house may qualify. Supply house to emergency service call may qualify. But one daily odometer total hides those differences.
That’s why the policy has to be specific. Name each employee’s regular work location. Explain how dispatch-from-home days work. Define temporary job sites. Spell out what happens when a technician mixes personal errands into a route.
For every eligible trip, capture the date, destination, business purpose, miles driven, and either route details or beginning and ending odometer readings. If the trip connects to a job, customer, invoice, or service category, include that too.
Build the Accountable Plan Before Payroll Has to Guess
Under an accountable plan mileage reimbursement, three pieces matter: a business connection, timely substantiation, and repayment of any excess. When that workflow is handled properly, reimbursements are generally excluded from wages. When it is loose, payments may face different payroll treatment.
This is where small businesses can keep it practical. Eli does not need enterprise software for four technicians. He needs one page and a habit.
Write the policy with seven fields: qualifying trips, required documentation, submission deadline, approver, payment timing, excess repayment rule, and separate rules for fuel, tolls, parking, allowances, and company vehicles.
Make the deadline monthly, not annual. A February trip submitted in March is still checkable. A December total reconstructed next winter is mostly memory with a dollar sign attached.
Also watch the double-payment trap. The standard mileage rate generally bundles operating costs like fuel, repairs, insurance, depreciation, and registration into one per-mile amount for eligible use. Parking and tolls may be handled separately, but reimbursing gas on top of standard mileage needs review.
This content is for educational and informational purposes only and does not constitute financial advice. Always consult with a qualified financial advisor or business consultant before making significant financial decisions.
Use Mileage as a Margin Signal, Not Just a Tax File
Once the log is clean, mileage becomes more than a reimbursement issue. At 72.5 cents per mile, a distant customer can look profitable on paper and still get thin after travel is counted.
Ask technicians to connect each drive to a job number, customer name, or service category. Then review mileage by territory, route, crew, and customer type. Many owners find that travel quietly explains why one “good” account never seems to produce cash.
Give one person approval responsibility. They do not need to investigate every mile, but they should question missing destinations, unusual routes, duplicate fuel requests, and late submissions. During the first three months, review entries weekly. You are teaching the rhythm before shortcuts become culture.
If last year’s log is thin, don’t invent certainty. Use invoices, dispatch records, calendars, and bank records to reconstruct what you reasonably can, then ask a tax professional how to handle the cleanup. The real win is preventing the same fog in 2026.
This week, build the one-page policy, choose the approval owner, and walk your crew through three examples: home to shop, shop to customer, and customer to supply house. Eli’s 3,000 miles were never just a number. They were decisions the business needed to see.
