After a single at-fault accident, full-coverage car insurance typically jumps somewhere in the range of 40% to 56% nationally — often $800 to $1,000 or more per year. The increase usually lasts three to five years, depending on your insurer’s “look-back” window and your state’s rules. How much you actually pay depends on severity, how many claims you’ve had, and where you live.
The exact number varies by study because each one prices a different driver profile. Bankrate, using Quadrant Information Services data refreshed in November 2025, found drivers with one at-fault accident pay 43% more for full coverage than drivers with clean records. A separate Insurance.com study (also using Quadrant data) put the national average higher, at 56% — about $1,067 more per year. So treat any single figure as a midpoint, not a guarantee.
Disclaimer: This article is for education only and is not personalized insurance advice. Rates vary by state, insurer, and your individual profile — get quotes for your own situation before making decisions.
How much does one at-fault accident raise your rate?
Most national studies land in the 40–56% band for full coverage after a first at-fault accident. To put that in plain dollars, Experian reported in June 2025 that drivers with one incident on their record paid about $367 more on average — a more modest 17% bump that reflects a different mix of drivers and coverage levels. The takeaway: a 40%+ surcharge is common on a full-coverage policy, but your raw dollar increase scales with how expensive your base premium already is.
Severity matters too. A minor fender-bender generally triggers a smaller surcharge than a serious, high-payout crash. Insurers also weigh your total claim history — a first-ever claim is treated very differently from a third one.
How much does car insurance go up by state?
Because base rates and state regulations differ so much, the same accident can cost wildly different amounts depending on where you live. The table below shows full-coverage annual rates before and after one at-fault accident, from the Insurance.com / Quadrant study (profile: 40-year-old driver, full coverage, 100/300/100 limits).
| State | Clean record | After 1 at-fault accident | Increase |
|---|---|---|---|
| California | $2,416 | $4,244 | +76% |
| Texas | $2,043 | $3,475 | +70% |
| Michigan | $2,352 | $3,673 | +56% |
| Louisiana | $2,883 | $4,279 | +48% |
| Maine | $1,175 | $1,732 | +47% |
| New York | $1,870 | $2,393 | +28% |
Source: Insurance.com, Quadrant Information Services.
How much full-coverage premiums jump, by state
Note that California prohibits insurers from surcharging drivers for not-at-fault accidents, yet still shows one of the steepest hikes for at-fault ones — a reminder that fault is the key variable.
How long does an accident stay on your insurance record?
Most insurers apply a surcharge for three to five years, matching their own look-back window, per NerdWallet and MoneyGeek. The window varies by company — MoneyGeek notes that Progressive and Geico commonly look back three years, while State Farm and Allstate often use five.
One critical catch: your rate does not automatically reset the moment the accident exits the look-back window. If you stay put without re-shopping, you may keep paying the surcharged rate. Comparing quotes at your next renewal is what actually triggers the lower price.
Does a not-at-fault accident raise your rates?
Sometimes. Even when you’re not to blame, MoneyGeek reports that not-at-fault accidents still raise rates 7% to 12% in many states. The good news: California, Oklahoma, and Massachusetts prohibit insurers from surcharging for not-at-fault accidents as of 2025. Elsewhere, the increase is typically smaller than for an at-fault crash — but it isn’t always zero.
What is accident forgiveness, and does it help?
Accident forgiveness is a feature that prevents your first at-fault accident from raising your rate. Per Progressive and Experian, some insurers include it free for long-tenured, claim-free customers (“earned” forgiveness), while others sell it as a paid add-on you can attach immediately.
Two things to know: forgiveness usually applies to one accident only, so a second at-fault crash is surcharged normally. And it’s regulated differently by state — Massachusetts, for example, runs its own statewide forgiveness program. If you have a clean record, it’s worth asking your insurer whether you already qualify at no charge.
How can you lower your rate after an accident?
You can’t erase the accident, but you can blunt the surcharge:
- Re-shop your policy. Surcharges aren’t standardized — one insurer may forgive what another penalizes heavily. Comparing carriers is the single highest-impact move. See our breakdown of Geico vs. Allstate vs. State Farm vs. Progressive to see how the big four differ.
- Raise your deductible to lower the premium (just keep that amount in savings).
- Stack discounts — telematics/safe-driving programs, bundling, and defensive-driving courses can offset part of the surcharge.
- Tend to your credit. In most states, credit-based insurance scores affect your rate; here’s how your credit score changes your car insurance.
- Review your coverage. If you’re carrying coverage you no longer need — or financing a vehicle — make sure you understand the basics, like whether gap insurance is worth it, so you’re not overpaying elsewhere.
Frequently asked questions
How much does car insurance go up after one at-fault accident? Roughly 40–56% for full coverage on average nationally, per Bankrate (43%) and Insurance.com (56%) — commonly $800 to $1,000+ per year, though it varies widely by state and insurer.
How long will my insurance stay higher after an accident? Typically three to five years, matching your insurer’s look-back window, according to NerdWallet and MoneyGeek.
Will my rate go up if the accident wasn’t my fault? Possibly — about 7% to 12% in many states, per MoneyGeek — but California, Oklahoma, and Massachusetts ban surcharges for not-at-fault accidents.
Does my rate drop automatically when the accident falls off? Not necessarily. The surcharge can linger unless you re-shop at renewal, so compare quotes once the look-back window closes.
Is accident forgiveness worth it? If you can get it free as a long-tenured, claim-free customer, it’s an easy yes. As a paid add-on it’s a judgment call — it usually covers only your first at-fault accident.