Free for 40 trips a month · iPhone, iOS 16+ · CarPlay optional
On CarPlay
Three taps. Five seconds. Done before you shift into drive.
MileTag is the only mileage tracker built around CarPlay's Driving Task entitlement. You classify the trip when you actually know what it is — getting in the car, with the meeting still in your head.
Step 1
Trip starts
CarPlay shows two big buttons — Business or Personal.
Step 2
Pick the purpose
A short list of your saved business purposes — one tap.
Step 3
Drive — we record
Trip status stays visible. End the trip from CarPlay any time.
The Problem
Every other mileage app makes you classify trips later.
By Friday, you've forgotten which Tuesday lunch was a client meeting. The IRS doesn't accept "I think this was business." MileTag captures the answer the only moment you actually know it: when you're getting in the car.
✓Two taps on CarPlay. Business or Personal, then a purpose.
✓Five seconds. Done before you shift into drive.
✓Zero context loss. You classify with the meeting still fresh in your head.
The CarPlay classification prompt — Business or Personal, then a purpose.
Features
Built for the people the IRS pays attention to.
Self-employed, 1099, gig workers, real estate agents, sales reps, and small business fleets under ten units. MileTag captures the exact records the IRS expects — and not a byte more.
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CarPlay Classification
Tag every trip Business or Personal with one tap on your CarPlay screen — before you put the car in drive.
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Automatic Trip Detection
Trips start and end on their own using motion sensors and GPS. Nothing to press, nothing to forget.
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IRS-Ready Exports
Generate CSV or PDF mileage logs that match IRS Publication 463 requirements. Ready for tax day.
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Smart Stoplight Detection
MileTag learns your trip's rhythm. Stoplights, drive-throughs, and short stops won't end your drive prematurely.
☁️
iCloud Sync
Your trips sync automatically across every iPhone signed into your iCloud account. Switch devices and your full history follows.
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Beta
OBD-II Ignition Trigger
Pair an OBD-II Bluetooth adapter and trips start the moment your engine turns over.
How It Works
Three steps. Logged while you drive.
STEP 01
Drive
MileTag detects your trip starting using motion + GPS. No buttons. No setup.
STEP 02
Classify on CarPlay
Tap Business or Personal on your CarPlay screen. Pick a purpose. Done in five seconds.
STEP 03
Export at Tax Time
Generate an IRS-ready CSV or PDF mileage log. Hand it to your accountant or your tax software.
IRS Publication 463
A mileage log your accountant will sign off on.
The IRS requires a contemporaneous record of every business trip with the date, destination, business purpose, and miles driven. They also require your odometer at the start and end of each tax year to establish your business-use percentage. MileTag captures all of it.
✓
Date of trip
Recorded automatically the moment driving begins.
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Destination
Reverse-geocoded address recorded when the trip ends.
✓
Business purpose
Selected on CarPlay or in the iOS app from your saved purposes.
✓
Miles driven
Calculated from the GPS route — not your phone's odometer.
✓
Odometer at year-start and year-end
Recorded manually with annual reminder notifications.
✓
Records kept contemporaneously
Every trip is logged at the time it happens — IRS's "at or near" requirement.
The IRS standard mileage rate for 2026 is $0.725 per business mile. MileTag automatically calculates your deduction value as you drive. Records should be retained for at least 3 years from your filing date — 6 years if income is underreported by 25% or more.
Every IRS field captured. Hand the file to your CPA.
Privacy
Your trips stay in your iCloud account.
Mileage data maps your week. Where you live. Where the kids go to school. Where you actually went on Tuesday at 2pm. We built MileTag so we never see any of it.
Trip data stays on your account
Your locations, business purposes, and tax records are stored on your iPhone and synced through your private iCloud account — never on our servers.
We never see your trips
No trip locations, addresses, or tax records are transmitted to MileTag. We literally cannot access them.
Aggregate monitoring only
We may collect anonymous crash reports and aggregate usage counts to keep the app reliable. No personal trip data, ever.
Never sold, never shared
We do not sell, share, or monetize your data with anyone. Not now. Not later.
Frequently Asked
Questions, answered.
Is MileTag IRS-compliant?
Yes. MileTag captures every field IRS Publication 463 requires for a mileage log: the date of each trip, the destination, the business purpose, and the miles driven. The app also tracks your odometer at the start and end of each tax year, which the IRS requires to establish your business-use percentage.
How does CarPlay classification work?
When MileTag detects a trip starting, your CarPlay screen shows two large buttons — Business and Personal. Tap one. If you tap Business, you can pick a purpose from your saved list (Client visit, Site inspection, etc.). The whole flow takes under five seconds, before you even put the car in gear.
What if I don't have CarPlay?
MileTag works with or without CarPlay. Without CarPlay, trips are recorded automatically and you classify them later from your iPhone — either as you remember during the day or in a batch at the end of the week. CarPlay just makes classification faster and more accurate by capturing your intent in the moment.
What if I forget to classify a trip?
Unclassified trips are surfaced at the top of your trip list with a yellow indicator. You'll also receive a notification two minutes after each unclassified trip ends, prompting you to classify it. You can swipe to classify directly from the list — no need to open each trip.
Do I need an OBD-II adapter?
No. The OBD-II adapter is optional and currently in beta. With an adapter, MileTag detects your engine starting and stopping with perfect accuracy. Without it, MileTag uses your phone's motion sensors and GPS, which works well for most drivers.
Where is my trip data stored?
All trip data lives on your device and in your private iCloud account. MileTag's servers never see your locations, addresses, or tax records — we literally cannot access them. We may collect anonymous crash reports and aggregate usage counts to keep the app reliable, but never your personal trip data.
What does MileTag cost?
Free for 40 trip classifications a month. Trip recording, IRS-ready CSV and PDF exports, iCloud sync, and CarPlay support all stay free past the cap. MileTag Pro removes the classification limit and adds Family Sharing for $4.99/month or $29.99/year. New users get a 7-day window of intro pricing ($1.99/month or $14.99/year) which sticks for the life of the subscription.
Does MileTag support multiple vehicles?
Yes. You can add as many vehicles as you need — each one tracks its own odometer readings and trip history. If you use OBD-II adapters, MileTag automatically associates trips with the correct vehicle based on which adapter is connected.
Early access · TestFlight
Be first to tag every trip from your dashboard.
Join the MileTag beta. We'll email your TestFlight link the moment you sign up — your IRS-ready mileage log starts on your next drive.
