Guides
Pay-per-mile car insurance: how the pricing works
How pay-per-mile car insurance bills a base rate plus cents per mile, which major insurers offer it, how to find your break-even mileage, and its trade-offs.
Pay-per-mile insurance charges you a fixed base rate plus a per-mile rate for the miles you actually drive, usually billed monthly. It is built for people who drive well below average: someone who works from home, a retiree, a city dweller who mostly walks or takes transit, or a household with a second car that rarely leaves the driveway. If you drive a lot, it usually costs more than a conventional policy.
How the bill is calculated
Every pay-per-mile program uses the same basic formula:
Monthly cost = base rate + (per-mile rate × miles driven that month)
- The base rate covers the part of your risk that does not depend on driving — theft, hail, a falling tree, vandalism — plus the insurer's fixed costs. It is set from the usual rating factors: your age, record, location, car and coverage choices.
- The per-mile rate is usually a few cents. It is also personalized; a driver with a poor record or an expensive car to repair will pay more per mile.
- Miles are measured by a plug-in device, a phone app or the car's own connected systems.
Your coverage is the same type of policy as a conventional one: liability, collision, comprehensive and the rest, at the limits and deductibles you choose. Only the billing changes.
Programs from major insurers
As described on each insurer's website in October 2026:
| Program | How miles are measured | How it is priced | Availability notes |
|---|---|---|---|
| Allstate Milewise | Plug-in device, with costs shown in the Allstate app | A daily rate plus a per-mile rate; an "Unlimited" vehicle option pays only the daily rate | Varies by state |
| Nationwide SmartMiles | Small plug-in device or an eligible connected car (2018 and newer Toyota connected cars can report miles) | A base premium plus a cost per mile, billed on the prior month's miles; up to a 10% safe-driving discount after the first renewal | Not available in AK, HI, LA, MI, NC, NY or OK |
| USAA SafePilot Miles | USAA DriveSafe phone app | A monthly bill that varies with miles driven; USAA advertises up to 20% off for driving fewer miles and up to 20% for safe driving at renewal | Not available in CA, MD, MI, NJ, NY, NC or PA; USAA says it suits people who drive under 8,000 miles a year |
Smaller and digital insurers also sell per-mile policies in some states. American Family takes a different approach with MilesMyWay: it uses odometer photos to give a low-mileage discount on a conventional rate, and the company says it is not pay-per-mile.
Nationwide notes that some hybrids, electric vehicles and diesel cars may not work with its device, so check compatibility before you enroll.
Finding your break-even mileage
The question is not whether the per-mile rate looks small, but how many miles you can drive before the pay-per-mile bill matches a conventional quote for the same coverage.
Break-even miles per month = (conventional monthly premium − base rate) ÷ per-mile rate
Here is a hypothetical example. Say a conventional policy costs $150 a month and a pay-per-mile quote has a $60 monthly base rate and 8 cents a mile:
- Break-even: ($150 − $60) ÷ $0.08 = 1,125 miles a month, or about 13,500 miles a year.
- At 400 miles a month, you would pay $60 + $32 = $92 — about $58 a month, or roughly $700 a year, less.
- At 1,400 miles a month, you would pay $60 + $112 = $172 — $22 a month more than the conventional policy.
Use the pay-per-mile break-even calculator with your own quotes. Remember that a conventional policy may already reflect a low annual mileage estimate or a low-mileage discount, which narrows the gap.
Trade-offs to weigh
Variable bills. A month with a road trip or a temporary long commute can produce a large bill. USAA says its program is best for those "comfortable with a monthly bill that varies".
Tracking. Even mileage-only programs collect trip data, and some add a safe-driving discount based on how you drive. Ask what the device or app records and how the data is used; see what driving apps collect and how insurers use it.
Long trips. Before you enroll, ask how a long road trip would be billed and whether the program limits the miles charged in a single day.
Multiple drivers. Every mile the car travels is billed, regardless of who drives. A household where several people share a low-mileage car can still benefit, but the meter runs for all of them.
Stored cars. For a car parked for months, the base rate still applies. If the car will not be driven at all, see insuring a car you are not driving for other options.
California and verified mileage
In California, state regulations let insurers base the mileage rating factor on "verified actual miles driven" using odometer readings or a device, but a device may only collect mileage information and may not be used to collect or store the vehicle's location for rating. That makes mileage-based pricing possible there even though several behavior-scoring programs are not offered.
Who should consider it
- Estimate your yearly mileage from service records or two odometer readings a year apart.
- Get a conventional quote and a pay-per-mile quote at identical coverage.
- Calculate your break-even mileage and compare it with your estimate, leaving room for trips.
- If you are well under the break-even, pay-per-mile is likely to save money; if you are close, the variability may not be worth it.
For how pay-per-mile fits alongside behavior-based programs, see usage-based car insurance explained.
Key takeaways
- Pay-per-mile bills a base rate plus a per-mile rate, usually monthly; coverage is otherwise the same as a standard policy.
- Allstate Milewise, Nationwide SmartMiles and USAA SafePilot Miles are among the programs from major insurers, each with state exclusions.
- Work out your break-even mileage: (conventional premium − base rate) ÷ per-mile rate.
- It suits drivers well below average mileage; expect variable bills and some trip tracking.
- California allows verified-mileage pricing but bars insurers from using the device to track location.