A single DUI conviction adds an average of 74.5% to a driver’s car insurance premium, according to a 2026 LendingTree analysis of hundreds of thousands of quotes across all 50 states and Washington, D.C. That is the difference between paying roughly $2,130 a year for full coverage and paying $3,716 — for the exact same driver, the exact same car, the day after the exact same clean record stops being clean. The fine and the court costs are the part everyone budgets for. The rate hike is the part that keeps billing you for years.
What almost nobody budgets for is how unevenly that hike lands. Insurance is regulated state by state, and each state’s rating rules treat a DUI conviction like a completely different animal, which means the same mistake can cost a Charlotte driver eight times what it costs a driver in Biloxi.
The states where a DUI nearly triples your bill
LendingTree’s data puts North Carolina at the top of the list, with premiums jumping 284.1% — from an average of $1,208 a year to $4,640. California is next at a 136.0% increase (from $2,600 to $6,135), followed by Delaware at 124.0% (from $2,542 to $5,694). Those aren’t outliers in a small sample; they’re statewide averages built from a standardized 30-year-old driver profile, so the swings come down to how each state’s insurance commissioners let carriers weigh a DUI against a driver’s base rate.
The states where the hit is almost survivable
On the other end, Mississippi drivers see just a 17.4% increase (from $2,170 to $2,548), New York sees 28.7% (from $2,949 to $3,796), and Maryland sees 35.4% (from $2,198 to $2,977). It’s not that those states go easy on drunk driving — license suspensions and court penalties are separate from what an insurer charges — it’s that their rate-filing rules cap how much a single violation can move the needle on premiums already priced higher to begin with.
How long you’re stuck paying it
The surcharge isn’t a one-year penalty. A DUI typically raises car insurance rates for three to five years, and in California the conviction can affect eligibility for safe-driver discounts for a full decade. Insurers re-run your driving record at every renewal, so the elevated rate doesn’t fade quietly — it gets re-applied every six or twelve months until the conviction finally ages off the lookback window your state and your specific carrier use.
Your insurer matters as much as your zip code
Carriers don’t all price risk the same way. Progressive posts the smallest average DUI increase among major insurers, around 35% (a $709 jump), while State Farm rises 61% and Travelers 87%. Nationwide jumps 134%, adding roughly $2,079 a year, and GEICO comes in highest at roughly 155%, an increase of about $2,740 a year for the identical violation, on the identical driver, for the identical conviction. Shopping your policy after a DUI isn’t just advisable, it’s often the single biggest lever a convicted driver has, since the spread between carriers ($709 versus $2,740 for the same infraction) can dwarf the spread between neighboring states.
That carrier-to-carrier gap exists because each insurer builds its own actuarial model of how a DUI predicts future claims, and those models weren’t built to agree with each other. A company that leans heavily on driving-record data will punish the conviction hard; one that weights credit-based insurance scores or long-term customer loyalty more heavily may barely move the number. Nothing about state law forces insurers to converge, which is exactly why getting quotes from four or five carriers after a conviction routinely turns up four-figure annual differences for coverage that is, on paper, identical.
Age cuts the math both ways
Insurance.com’s breakdown shows an 18-year-old’s premium jumping about 70% after a DUI, adding roughly $3,684 to an already-high base rate, while a 65-year-old sees a steeper 107% jump but a smaller dollar increase of about $1,870, since older drivers start from a much lower baseline. Either way, a second DUI resets the math entirely: Progressive’s average rises to $4,818 a year (an 80% jump from a clean record), and GEICO’s climbs to roughly $7,200 — a 308% increase that turns a repeat offense into a five-figure decision over a five-year window…