Metromile's filing argues the mechanism directly: there is a correlation between the number of miles driven and the number of insurable losses, yet traditional pricing keys on age, credit score, accident history and geography instead.
By charging a per-mile rate and billing each customer monthly on actual miles driven, the company reports saving customers on average 47 percent versus their previous insurer, targeting the majority of drivers who are on the road less.
Meter the exposure: a small base rate plus a per-mile charge turns insurance into a utility bill, aligning premium with the actual time at risk. The odometer becomes the underwriter — drivers who barely drive stop overpaying for accidents they are barely exposed to, and the price signal even nudges driving down.
Metered the exposure: a small base rate plus a per-mile charge aligns premium with actual time at risk, making the odometer the underwriter and the price signal a nudge.
Miles driven correlate directly with losses, so per-mile pricing aligns premium with actual risk.
Low-mileage drivers were overcharged under traditional proxies, so the 47% saving attracted them.
Visible per-mile pricing turns the bill into a behavioral nudge, reducing driving.
Telematics made measuring miles cheap and practical.
When a pooled risk is priced on proxies, find the underlying measured unit of exposure and charge on that; low-exposure customers become a profitable segment.
Customers save on average 47 percent over their previous auto insurer under per-mile billing (SEC 10-K). Proved usage-based insurance at scale and dragged telematics pricing into the mainstream industry's toolkit.
FOLLOW THE EVIDENCE
The sources
- Metromile Form 10-K (FY2021) SEC EDGAR (Metromile Inc.) · sec.gov