At-Fault Claim Impact Calculator
See how much one at-fault accident really costs — the surcharge added to your premium over the next three to five years.
How much will an at-fault claim raise my premium?
A single at-fault claim adds a surcharge that fades over three to five years. On the default $1,650 premium with a 40% surcharge over three years, the first year costs about $660 more and the full window adds roughly $1,320. This is a modeled estimate, not an insurer quote — your carrier sets the real surcharge.
Your numbers
3-year total extra cost
$1,320
added premium from the claim
First-year increase
$660
Full surcharge period (3 yrs)
$1,320
Insight — An at-fault claim typically raises your premium for three to five years, and the cumulative surcharge can rival the payout itself for small claims. When the damage is close to your deductible, paying out of pocket and keeping a clean record is often cheaper — and shopping carriers after an incident frequently softens the increase.
What if Premium surcharge changes?
| Premium surcharge | 3-year total extra cost |
|---|---|
| 10% | $330 |
| 20% | $660 |
| 30% | $990 |
| 40% · now | $1,320 |
| 50% | $1,650 |
Shop your insurance the smart way
Know your benchmark here, then compare real quotes from several carriers — prices for the same driver vary a lot.
Explore insurance toolsFree · No sign-up · Independent, source-based math
How this tool estimates: with a typical 30–50% first-year surcharge that phases out over three to five years, a single at-fault claim adds roughly 0.9–1.2x of one year's premium across the full surcharge window. Adjust the surcharge and period above to match your insurer.
How this calculator works
The tool applies your carrier's at-fault surcharge to your current premium in full for the first year, then decays it linearly toward zero across the period you choose. It sums the extra premium over that window and compares the total against the claim payout, so you can judge whether filing is worth it. It is a modeled estimate of the surcharge, not an insurer quote.
Formula
First-year increase = current premium × surcharge %. Each year the surcharge scales by (years remaining ÷ years), decaying to near zero. Total extra = sum of those yearly amounts. Net benefit of filing = claim payout − total extra premium.
Worked example
On a $1,650 premium with a 40% surcharge over 3 years: first-year increase = $1,650 × 40% = $660. It steps down to about $440 in year two and $220 in year three, so the claim adds roughly $1,320 in extra premium. Against a $6,000 payout, filing nets about $4,680.
What affects your result
- →Your current annual premium — the surcharge is a percentage of it
- →The surcharge percentage your carrier applies after an at-fault claim
- →How many years the surcharge stays on your policy
- →The claim or damage amount, for the file-versus-pay-out-of-pocket comparison
What this estimate includes
- ✓The first-year premium increase
- ✓The total extra premium across the full surcharge period
- ✓A three-year total and the net benefit of filing versus paying out of pocket
What it does not include
- ×Whether your carrier offers accident forgiveness
- ×Exact state surcharge rules and caps
- ×Savings you might find by shopping carriers after the claim
- ×This is NOT an insurer quote — it does not bind any carrier to a price
Good to know
Clear, practical answers about the claim impact calculator.
How much does insurance go up after an at-fault accident?＋
Most insurers apply a surcharge of about 30–50% in the first year after an at-fault claim, then phase it down over three to five years. The exact amount depends on your carrier, state, claim size and prior record.
Should I file a claim or pay out of pocket?＋
If the damage is only modestly above your deductible, the multi-year surcharge can cost more than the payout — so paying out of pocket may be cheaper and keeps your record clean. For large claims, filing almost always makes sense.
Can I lower my premium after an accident?＋
Yes. Surcharges aren't uniform across insurers, so shopping your policy after an incident often finds a carrier that weights the claim less heavily. Accident-forgiveness programs and a renewed clean streak also help bring it back down.
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