Why the court fine is the smallest check you'll write
Headlines quote the base fine: $390 in California, $500 in Texas, $1,000 in Illinois. Those numbers are deceptive because every state layers penalty assessments on top — often turning a $390 fine into $1,800 once court costs, state penalties, county fees, and restitution fund contributions attach. Then the real expenses begin.
The two-track penalty system most people discover too late
Every DUI arrest triggers two independent proceedings:
- The administrative DMV track. In most states the officer confiscates your license on the spot and issues a temporary permit. You have a short window — often 7 to 10 days — to request a hearing; miss it and the suspension starts automatically, win or lose in court.
- The criminal court track. This is the fine, probation, classes, and jail exposure. The standard first-offense misdemeanor rarely involves real jail time, but second offenses carry mandatory minimums in nearly every state.
These tracks are independent. You can be found not guilty in court and still serve the full DMV suspension.
The BAC tiers that change everything
| BAC level | Classification | Typical penalty shift |
|---|---|---|
| 0.08 – 0.14 | Standard per-se DUI | Baseline fines, 3–9 month program, restricted license often available. |
| 0.15 – 0.19 | Enhanced / aggravated | Roughly double fine, 9–18 month program, mandatory IID, longer suspension. |
| 0.20+ | Extreme / super-DUI (some states) | Additional mandatory jail, felony exposure in several states. |
| Test refusal | Implied-consent violation | Automatic 12-month suspension in many states — often harsher than the DUI conviction itself, regardless of guilt. |
The insurance hit nobody budgets for
Most carriers require an SR-22 (or FR-44 in Florida/Virginia) certificate for three years and reclassify you into their highest-risk pool. Average premium increases run 80%–150%, or roughly $800–$4,000 extra per year. Over the three-year filing period, this surcharge alone frequently exceeds every other cost combined. In the model, it typically accounts for 40%–60% of the total financial impact.
Frequently asked questions
How much does a first-offense DUI really cost?
The base fine is $390–$1,000 in most states, but statutory assessments push cash penalties to $1,500–$2,500. With SR-22 insurance surcharges, DUI school, ignition interlock, towing, and reinstatement fees, realistic totals run $8,000–$24,000 over three years before attorney fees.
Does refusing the breathalyzer help or hurt?
Almost always hurts. Every state has implied-consent laws: refusal triggers an automatic administrative suspension — often 12 months for a first refusal — that applies even if you're acquitted of the DUI. Refusal rarely prevents prosecution, since officers can seek a warrant for a blood draw.
Can I drive at all during the suspension?
Usually yes, with conditions. Most states offer a restricted or hardship license after 30–45 days if you install an ignition interlock device and enroll in the DUI program. The IID typically costs $70–$150 to install plus $60–$90 monthly monitoring for 6–24 months.
Is a third offense a felony?
In most states, yes within the lookback window (commonly 10 years). Several states — including New York, Arizona, and Texas — make a third DUI a felony regardless of timeframe. Felony DUI carries state prison exposure, multi-year revocation, and lifetime consequences for employment and professional licensing.
Is this calculator legal advice — and is my data stored?
No to both. Outputs are educational estimates based on general cost ranges and do not account for your specific state statute, county fee schedule, or case facts. All arithmetic executes locally in this browser tab; inputs are never transmitted, logged, or stored anywhere.