Why odometer photos are the gold standard for mileage deduction audits
According to IRS Publication 463 (Travel, Entertainment, Gift, and Car Expenses), you must keep records that show:
While GPS mileage trackers are popular, photo evidence of your odometer provides stronger audit protection:
Odometer photos are physical, timestamped evidence. GPS logs are digital and can appear manipulated (even if they're not). IRS auditors trust photos more because they're harder to fake.
Taking a photo at the start and end of your work shift demonstrates you INTENTIONALLY tracked business miles - not just captured all driving and sorted later. The IRS values this deliberate record-keeping.
GPS trackers record ALL trips (grocery store, gym, visiting friends). You must then classify each as "business" or "personal." Mistakes here trigger audits. With photo tracking, you ONLY log business shifts - no sorting needed.
The IRS publishes sample mileage logs in Publication 463. They show: date, odometer start/end, total miles, business purpose. MileageSnaps creates exactly this format with photo proof attached.
GPS can be inaccurate in cities (tall buildings), tunnels, parking garages, or rural areas. Your odometer is always accurate - it's a mechanical/digital meter certified by the vehicle manufacturer.
"Your GPS log shows you drove 18,000 business miles last year. That's 90% of your total mileage. Do you never drive to the grocery store or visit family?"
Problem: Over-claiming business use triggers suspicion.
MileageSnaps Advantage: You only log actual work shifts. Your total is realistic (e.g., 15,000 miles across 230 shifts).
"On March 15th, you claim 87 miles for 'client meetings.' Show me proof."
With GPS: You show a map with a route. Auditor asks, "How do I know you didn't drive to a friend's house and call it business?"
With MileageSnaps: You show photos of your odometer at 45,230 mi (9:15am) and 45,317 mi (4:42pm), tagged "Client Meetings - Downtown." Plus notes: "Met with Johnson Corp, visited 3 properties." Case closed.
If you claim the Standard Mileage Deduction on Schedule C (Form 1040), the IRS may ask for your business use percentage. Photo logs make this simple: 15,000 business miles รท 20,000 total miles = 75% business use. This percentage applies to other vehicle expenses (insurance, registration, etc.).
If you're audited and lack adequate mileage records, the IRS will:
Here's how MileageSnaps ensures you're audit-ready:
No. Digital photos stored on your iPhone (and backed up to iCloud with MileageSnaps Pro) are fully acceptable. The IRS accepts electronic records as long as they're retrievable and legible.
Yes! You can manually enter past shifts if you remember your odometer readings. While not as strong as real-time photos, notes like "forgot to log, reconstructed from memory" show good-faith effort.
Note the change in your records. Example: "Switched to new vehicle on 6/15/25. Old car final odometer: 87,450. New car starting: 12." The IRS understands vehicle changes - just document them.
The IRS doesn't "approve" specific apps. They require adequate records. MileageSnaps meets and exceeds IRS Publication 463 guidance, giving you audit-proof documentation.
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