Quick Answer: Route planning software helps reduce mileage reimbursement fraud by creating an objective, pre-planned mileage figure for every route. Managers compare that planned mileage against what a driver claims. Small gaps are normal; large, repeated gaps get a closer look. And once drivers know every route's mileage is on record, padding drops on its own.
If your business runs deliveries, pickups, service calls, or sales calls with employee or contract drivers, mileage reimbursement is one of your quietest cost leaks. When businesses & non-profits deploy route planning software, it saves money overall - and also helps reduce mileage reimbursement fraud. Most overstated mileage claims are honest mistakes: a forgotten log, a rounded-up odometer reading, or bad math. But some are deliberate, and they add up fast at today's mileage reimbursement rates.
This guide covers the size of the problem, how mileage padding happens, and a simple process for using RouteSavvy route planning software to verify claims without micromanaging your drivers.
How Common Is Mileage Reimbursement Fraud?
Organizations lose an estimated 5% of annual revenue to occupational fraud, and padded expense reports, including mileage, are one of the most common forms. That's the headline finding of the Association of Certified Fraud Examiners' Occupational Fraud 2026: A Report to the Nations, which analyzed 2,402 cases across 143 countries.
Mileage is a favorite target because it's easy to inflate and hard to disprove. A survey of 1,072 business travelers by expense software company Chrome River found:
- Estimated annual cost of employee expense fraud to U.S. employers $2.8 billion
- Share of respondents who admitted to expense fraud 5.3% (about 1.1 million workers nationally)
- Average fraud per offender per year about $2,500
- Share of offenders whose methods included adding mileage to trips 34.5%
- Share of offenders who were caught 17%
- Industry with the second-highest fraud rate: Travel and Transportation (17.1%)
Note: The Chrome River survey dates from 2016. The share of drivers who pad mileage is likely similar today, but each padded mile now costs more because of higher mileage reimbursement rates.
The takeaway for fleet and field-service managers: most drivers are honest. But a small group can quietly drain thousands of dollars a year, and most are never caught.
How Drivers Overstate Mileage (On Purpose or By Mistake)
The most common cause of inflated mileage claims is personal driving logged as business driving. A stop at the gym, a school pickup, or the commute home gets folded into the day's total. Other common patterns:
- Rounding up. "About 40 miles" becomes 50, every day.
- Reconstructing from memory. Logs filled in at month's end are guesses, and guesses tend to run high.
- Longer-than-needed routes. A driver takes a scenic or habitual path instead of the efficient one.
- Phantom trips. A customer visit that was a phone call still shows up as a drive.
- Duplicate claims. The same trip is submitted twice, or claimed by two drivers who rode together.
These scenarios are classified as expense reimbursement schemes: claims for fictitious or inflated business expenses, including personal travel. Whether a gap is a mistake or fraud, the fix is the same: an objective baseline to compare against.
Why Padded Miles Cost Businesses & Non-profits More In 2026
The IRS business standard mileage rate is 76 cents per mile for July 1 to December 31, 2026, up from 72.5 cents in the first half of the year. The IRS issued a rare mid-year increase; the rate was 70 cents in 2025 and 67 cents in 2024. Many employers reimburse at the IRS rate, so every padded mile costs more than it did even a year ago. Here are examples of how small padding adds up at 76 cents per mile:
- 1 driver adds 10 miles a day, 250 workdays, or 2,500 additional miles = $1,900
- 10 drivers do the same, resulting in 25,000 additional miles claimed = $19,000
- 20 drivers do the same, resulting in 50,000 additional miles claimed = $38,000
For a delivery or field-service business operating on thin margins, $38,000 a year can be a technician's salary or a new vehicle. And it doesn't show up as a line item; it hides inside routine expense reports.
How RouteSavvy Route Planning Software Helps Reduce Mileage Reimbursement Fraud
RouteSavvy calculates the mileage for every optimized route, giving managers an objective benchmark to check reimbursement claims against. Its main job is to build efficient multi-stop routes that cut miles driven, fuel costs, and drive time. The mileage figure is a by-product, and it does three things for fraud prevention.
1. It sets a planned-mileage baseline: When you optimize a route in RouteSavvy, the software reports that route's total mileage. That number is your expected business mileage for the day, set before the driver ever leaves the lot.
2. It makes mileage claim discrepancies easy to spot: Compare each driver's claimed mileage to the planned route mileage. A small gap is normal: detours, traffic, a missed turn, a fuel stop. A large or recurring gap is a reason to ask questions. Instead of an accusation, you have a neutral, data-based conversation: "Your route was 84 miles and you claimed 112. What happened?"
3. It deters mileage padding before it starts: When drivers know each route's mileage is on record, the incentive to inflate claims drops sharply. The ACFE's 2026 report found that management review and proactive data monitoring were each associated with roughly 50% or more lower median fraud losses. Route mileage is exactly that kind of simple, visible control.
The bonus: fewer miles in the first place. Why? Optimized routes are shorter routes. Every mile you cut from the route is a mile you never reimburse, before fraud even enters the picture.
How To Verify Mileage Claims With Route Planning Software In 5 Steps
1. Plan every route in RouteSavvy. Enter the day's stops, optimize, and save the route with its total mileage.
2. Share the route with the driver. The driver gets turn-by-turn directions, and both of you see the same planned mileage.
3. Collect the driver's claimed mileage. Use whatever you already use: a mileage log, an expense app, or odometer readings.
4. Compare claimed vs. planned mileage. Set a tolerance, such as 5 to 10%, for normal detours. Flag anything above it.
5. Follow up on patterns, not one-offs. One long day is noise. A driver who runs 20% over every week is a conversation worth having.
Tip: Keep the review consistent across all drivers. Applying the same tolerance to everyone keeps the process fair and defensible.
How To Reduce Mileage Reimbursement Fraud: Mileage Reimbursement Policy Checklist
- Software works best alongside a clear, written policy. Use this checklist to tighten yours: Define business mileage. State that commuting and personal stops are not reimbursable.
- Set the reimbursement rate. Say whether you follow the IRS rate and when it updates (note the July 2026 change).
- Require timely logs. Daily or weekly submissions beat month-end reconstructions.
- Set a variance tolerance. Publish the threshold, such as 10% over planned route mileage, that triggers review.
- Require manager approval. A second set of eyes on every claim is one of the most effective controls the ACFE measures.
- Do periodic spot checks. Surprise audits were associated with about 50% lower median fraud losses in the ACFE's 2026 report.
- Tell drivers how it works. Transparency is the deterrent. Drivers who know mileage is checked rarely pad it.
- Apply it to contractors, too. Contract drivers should meet the same documentation standard as employees.
Frequently Asked Questions About Mileage Reimbursement Fraud
What is mileage reimbursement fraud? - Mileage reimbursement fraud is claiming more business miles than were actually driven for work, in order to receive a larger reimbursement. Common forms include logging personal driving as business travel, rounding up distances, and claiming trips that never happened.
How do companies detect mileage fraud? - Companies detect mileage fraud by comparing claimed miles against an independent source, such as optimized route mileage from route planning software, GPS data, or odometer readings. Large or repeated gaps between claimed and expected mileage are the main red flag.
What is the IRS mileage rate for 2026? - The IRS business standard mileage rate is 72.5 cents per mile for January 1 to June 30, 2026, and 76 cents per mile for July 1 to December 31, 2026.
How much mileage variance is normal? - Many businesses treat a variance of 5 to 10% over planned route mileage as normal, to allow for traffic detours, fuel stops, and parking. Anything consistently above your threshold deserves a closer look.
Can route planning software prevent mileage fraud? - Route planning software can't stop someone from submitting a false claim, but it makes padding much easier to catch and less tempting to try. It gives every route a documented mileage figure that managers can check claims against.
Does RouteSavvy work for contract drivers? - Yes. RouteSavvy plans and logs mileage for any route you create, whether it's driven by an employee or an independent contractor.
RouteSavvy helps businesses with delivery, pickup, service, and sales drivers plan shorter routes and keep an objective record of every route's mileage. That means lower fleet costs and fewer questionable reimbursement claims. Want to see how it works for your team? Take RouteSavvy for a test drive with our Free Trial.