Someone runs a red light and hits you. The police report says so. Their insurance pays. And at your next renewal, your premium goes up anyway.

It feels like it shouldn't be legal — and in a couple of states, it isn't. But in most of the country, the frustrating answer to "can my rates go up for an accident that wasn't my fault?" is yes. Here's why it happens, where it can't, and the moves that keep an accident someone else caused from following you around.

The Short Answer, With Numbers

Insurers price risk, not fairness — and their data says drivers involved in any accident, regardless of fault, are statistically more likely to be involved in another. That correlation is enough, in most states, to justify a surcharge.

The canonical research here is the Consumer Federation of America's multi-city study, which found not-at-fault accidents raising premiums by roughly 10% on average — as much as $400 a year — for drivers in cities where the practice is legal. The carrier-by-carrier findings from that study are worth knowing, with the caveat that it dates to 2017 and practices evolve: Progressive applied the not-at-fault surcharge most aggressively — in every tested market where law allowed it — GEICO and Farmers sometimes raised rates 10% or more, Allstate did occasionally, and State Farm never surcharged for not-at-fault accidents in the study. Ask any carrier you're quoting what their current policy is; it's a fair question with a factual answer.

For scale, the at-fault comparison: causing an accident typically raises premiums 20–50% — in our own state-guide data, an at-fault accident averages a 40% increase in North Carolina and 43% in New York. Not-at-fault surcharges are smaller. They are not, in most places, zero.

Where It's Illegal to Raise Your Rates

Two states have rock-solid, tested prohibitions:

  1. California. Under Proposition 103's framework (Insurance Code 1861.02 and its regulations), insurers may only consider accidents where you were principally at fault in setting rates. Not-at-fault accidents are off the table, period.
  2. Oklahoma. State law similarly forbids surcharging drivers for accidents they didn't cause — and the CFA's testing confirmed the protection works in practice in both states.

Beyond those two, several sources credit additional states — Massachusetts most consistently, with others like Arizona, Ohio, Georgia, and Texas appearing on various lists — but the claims vary source to source and often hinge on fine distinctions (surcharge schedules vs. rating factors, claim payouts vs. mere involvement). The honest guidance: if you're outside California and Oklahoma, check your own state's Department of Insurance rather than trusting a listicle — including this one.

Why the Mechanics Matter: Who Pays Determines What Follows You

Whether a not-at-fault accident touches your record often comes down to which insurer writes the check:

  1. Claim paid entirely by the at-fault driver's insurer: the cleanest outcome. Your policy wasn't used; in most cases nothing chargeable lands on your record — though the accident may still appear in industry claim databases.
  2. Claim through your own policy — your collision coverage (with your insurer chasing reimbursement through subrogation), or your uninsured/underinsured motorist coverage because the other driver had no or too little insurance: now your policy has a claim on it, and depending on your state and carrier, that can influence renewal pricing even when fault is clearly elsewhere.
  3. No claim at all: even mere involvement, reported but unpaid, can feed the risk-correlation math at some carriers in some states.

One more legal wrinkle worth knowing if you're in the handful of contributory negligence jurisdictions — North Carolina among them: being found even partially at fault can bar you from recovering damages from the other driver at all, which pushes more claims onto drivers' own policies. It's one more reason fault determination isn't a formality; it's the whole game.

The Six Moves That Protect You

  1. Build the fault record at the scene. Photos, witnesses, and a police report are what make "not at fault" official rather than your word against theirs. (Our ten-second version: document everything, admit nothing, report promptly.)
  2. Route the claim to the at-fault driver's insurer when you can. If their coverage can make you whole, using it keeps your own policy claim-free.
  3. Ask your insurer the direct question: "Does a not-at-fault accident affect my renewal rate?" Their answer — and your state's rules — tell you exactly where you stand before renewal surprises you.
  4. Check whether you have accident forgiveness. Where offered, it typically protects your rate regardless of fault — and some carriers include first-accident forgiveness free.
  5. Scrutinize the renewal. If your rate jumps after a not-at-fault accident in a state that prohibits it, that's a Department of Insurance complaint, not a bill to pay quietly.
  6. Re-shop either way. Carriers weigh not-at-fault accidents completely differently — the CFA study found everything from zero to double-digit surcharges for identical situations. If your carrier is one that charges, a fresh comparison across carriers that don't is the single fastest fix, and our guide to lowering your rate after an accident covers the rest of the playbook.

The Honest Bottom Line

A not-at-fault accident sits in the gap between how insurance feels like it should work and how actuarial pricing actually works. You can't control the correlation math — but you can control which insurer's version of it you're subject to, whether your own policy takes the claim, and how airtight the fault record is. Those three levers, pulled early, are usually the difference between an accident that costs you nothing and one that quietly costs you 10% a year for three years.

Findings from the Consumer Federation of America's 2017 not-at-fault premium study; California and Oklahoma protections per state statute and CFA testing; state-guide rate figures per Insurify data as cited on the linked pages. Carrier practices vary by state and change over time — confirm current policy treatment with your insurer or your state's Department of Insurance. Verified August 13, 2026.