A second DUI conviction in California typically costs between $18,000 and $28,000 once every expense is counted, and the bill climbs higher if the case involves an injury, a trial, or a professional license. So how much does a second DUI cost in California in practice? The court fine itself is small. What runs the total up is the penalty assessment multiplier on that fine, the mandatory 18-month treatment program, the ignition interlock device, vehicle impound, years of inflated insurance premiums, attorney fees, and the income you lose while serving jail time or living without a license.
Here is where the money actually goes.
Court Fines and Penalty Assessments
The base fine under California Vehicle Code 23540 runs from $390 to $1,000.1California Legislative Information. California Code Vehicle Code 23540 That number is almost meaningless on its own. California adds a penalty assessment of $29 for every $10 of base fine, a 20% state surcharge, a $40 court operations assessment, a $30 conviction assessment, and smaller per-violation fees drawn from several state and county funds.2San Mateo County Superior Court. Why Is Your Bail or Fine So Much?
Do the math on a $390 base fine and the total comes to roughly $1,700. At the $1,000 maximum, you’re past $4,000. Courts can also order restitution to anyone injured or whose property was damaged, with no cap on that amount.
The 18-Month DUI Program
Second offenders have to complete an 18-month multiple-offender program, usually called SB-38, that combines group counseling, education sessions, and individual interviews across the full year and a half.3Department of Health Care Services. Driving-Under-the-Influence Programs You pay out of pocket. Health insurance and Medi-Cal cannot be applied.
Fees usually land between $3,000 and $3,500. CADA, one of the larger providers, charges a flat $3,500.4CADA. CADA – Court Referred Programs Payment plans are often available but don’t shrink the total. Missed sessions can extend enrollment and raise the cost, so staying on schedule matters.
Ignition Interlock Device
Every second-time offender has to install an ignition interlock device for at least 12 months under Vehicle Code 23575.3. If the DUI involved an injury, the mandatory period doubles to 24 months.5California Legislative Information. California Vehicle Code 23575.3 The installer has to recalibrate the device at least once every 60 days.6California Legislative Information. California Code Vehicle Code 23575
Installation runs $50 to $150, and monthly lease and monitoring fees come to around $3 per day, or roughly $90 a month. Over 12 months, budget $1,100 to $1,250. For the 24-month requirement after an injury DUI, roughly double that. The device goes on every vehicle you drive, so a second car multiplies the bill.
Vehicle Impound and Towing
A second DUI arrest leads to immediate impoundment, and the vehicle can be held up to 30 days. Towing typically costs $150 to $300. Daily storage runs $50 to $100. A full 30 days of storage alone can hit $1,500 to $3,000. Picking the car up earlier reduces the storage bill, but you need a valid license or a licensed driver to retrieve it, which is awkward when your own license is already suspended.
License Suspension, Reinstatement, and the Insurance Hit
The DMV imposes a two-year license suspension on a second DUI conviction without injury. If the DUI caused injury, that becomes a three-year revocation. A second offense with a prior felony DUI triggers a four- or five-year revocation depending on whether injury was involved. There is also a separate administrative per se suspension of one year that kicks in at the time of arrest when the chemical test shows a BAC of 0.08% or higher on a second or subsequent arrest.7California Department of Motor Vehicles. DUI Repeat Offenders Alcohol Involved 21 and Older
Reinstatement fees are modest in context: at least $125 for the administrative suspension under Vehicle Code 14905,8California Legislative Information. California Code Vehicle Code 14905 plus a $55 DUI reissue fee from the DMV.9California Department of Motor Vehicles. Licensing Fees
The real cost on the license side is insurance. A second DUI puts you in the high-risk category, and your insurer will either raise premiums steeply or drop you. California requires you to file an SR-22 certificate, which costs about $25 to $50 to file but tells every insurer what happened. Premiums commonly double or triple. Someone paying $1,500 a year before the conviction can expect $3,000 to $5,000 or more after. A DUI stays on your California record for 10 years, and insurers typically factor it into rates for three to five years. The cumulative increase over that stretch is usually $5,000 to $15,000.
Attorney Fees and Experts
Hiring a lawyer isn’t required, but a second DUI brings mandatory jail time and much tougher penalties than a first, so representing yourself is a real gamble. Attorney fees for a negotiated plea generally run $4,000 to $8,000. Cases involving pre-trial motions, expert witnesses, or a full trial can push legal costs past $15,000.
If the defense challenges the blood or breath test, you may also need a forensic toxicologist or similar expert. Expert witnesses average around $356 per hour for case review and $478 per hour for trial testimony, with retainers of two or more hours standard. Expert fees sit on top of attorney fees and often add $2,000 to $5,000.
Jail Time, Bail, and Lost Income
A second DUI within 10 years of a prior DUI or wet reckless carries a mandatory jail sentence of 90 days to one year.1California Legislative Information. California Code Vehicle Code 23540 Judges can sometimes substitute work release or community service for part of it, but some custody time is effectively unavoidable. Lost wages during that period, plus childcare or other obligations someone else has to cover, often run into the thousands.
Bail to get out before your court date can require several thousand dollars, and county schedules push amounts higher for a high BAC, a collision, or a chemical test refusal. If you use a bondsman, the premium is typically 10% of the bail and is nonrefundable even if you show up for every hearing.
Probation and Alcohol Monitoring
Most second DUI convictions carry five years of summary (informal) probation. There may be monthly supervision fees, and violating any condition can bring more jail time and more costs.
Some courts also order continuous alcohol monitoring. A SCRAM ankle bracelet typically costs $10 to $12 per day in base rental and monitoring, plus a $50 to $100 setup fee. At the low end, that’s over $300 a month. Not every case includes a SCRAM order, but when it does, the bill over several months is significant.
Getting Around Without a License
Two years without a license usually means rideshares, transit, or depending on other people. Across much of California, rideshare costs can run $200 to $500 a month. Over a two-year suspension, that’s $5,000 to $12,000 that doesn’t show up on anyone’s mental tally of what a DUI costs.
Job and Professional License Damage
If your job requires driving, a two-year suspension can mean demotion, reassignment, or termination. Delivery, sales, and field roles often end outright.
Licensed professionals have more to lose. Boards in healthcare, law, education, real estate, and aviation routinely investigate DUI convictions, and a second one is treated far more seriously than a first because it reads as a pattern. Outcomes range from probationary status and mandatory treatment to suspension or permanent revocation. The financial impact of losing a professional license, even temporarily, can outweigh every other item on this list.
Outside licensed professions, a repeat DUI on a background check can block promotions, security clearances, and new offers in government, healthcare, and finance for years.
If You Hold a CDL
For commercial drivers, a second DUI is career-ending. Federal law requires lifetime CDL disqualification for anyone convicted of two or more DUI offenses, whether the offenses happened in a commercial or a personal vehicle.10eCFR. 49 CFR 383.51 – Disqualification of Drivers Some states allow reinstatement petitions after 10 years, but most trucking and transportation companies hire on zero-tolerance policies that make a return to the industry very difficult even with a reinstated license. The lifetime earnings loss can easily reach six figures.
Travel to Canada
If you need to cross into Canada, a second DUI matters there too. Since December 2018, Canada has classified impaired driving as a serious crime carrying a maximum penalty of ten years, so any DUI conviction from that date forward makes you criminally inadmissible, potentially for life, with no automatic path to admissibility through the passage of time. Entry requires a Temporary Resident Permit or Criminal Rehabilitation. The TRP processing fee is roughly CAD $246 (about USD $180), and most applicants also hire a Canadian immigration attorney, which adds several hundred to several thousand dollars.
What the Total Actually Looks Like
A rough breakdown for a typical second DUI with no injury and no trial:
- Court fines and assessments: $1,700 to $4,200
- DUI education program: $3,000 to $3,500
- Vehicle impound and towing: $1,500 to $3,300
- Ignition interlock device, 12 months: $1,100 to $1,250
- License reinstatement fees: $180
- Insurance increase over 3 to 5 years: $5,000 to $15,000
- Attorney fees: $4,000 to $8,000
- Lost wages, transportation, and other costs: highly variable
At the conservative end, direct costs clear $16,000. Add the insurance hit, lost income from jail time, and transportation during suspension, and most second DUI cases land in the $18,000 to $28,000 range. Cases with an injury, a trial, a professional license problem, or alcohol monitoring run higher. The damage from a second DUI is not a single payment. It’s a drain that touches your budget for years.