A first drunk driving conviction in Wisconsin realistically costs between about $6,500 and $13,000 once every expense is counted, and repeat offenses climb quickly from there. So how much is a DUI in Wisconsin in practice? The court itself collects around $850 to $1,100 on a first offense, but attorney fees, insurance increases, a mandatory assessment, towing, and possible ignition interlock costs are what push the real total into five figures. Your blood alcohol concentration, whether you have prior offenses, and whether the court orders an interlock device all shift the number.
What You Owe the Court
Wisconsin calls the offense OWI, operating while intoxicated, and a first offense is a civil forfeiture rather than a criminal charge. The base forfeiture is $150 to $300.1Wisconsin State Legislature. Wisconsin Code 346.65 – Operating Under the Influence Penalties Every OWI conviction also carries a mandatory $535 driver improvement surcharge, plus additional court costs and fees.2Wisconsin State Legislature. Wisconsin Code 346.655 – Driver Improvement Surcharge Added together, a first-time offender typically owes the court $850 to $1,100.
A high BAC pushes those fines up sharply on third and later offenses. Fines double at a BAC of 0.17 to 0.199, triple at 0.20 to 0.249, and quadruple at 0.25 or higher.1Wisconsin State Legislature. Wisconsin Code 346.65 – Operating Under the Influence Penalties Penalties also double if a child under 16 was in the vehicle.3Wisconsin Department of Transportation. OWI and Related Alcohol and Drug Offense Penalties
Attorney Fees
Legal representation is often the single largest expense. A private attorney handling a first-offense OWI in Wisconsin typically charges between $2,000 and $5,000. Contested BAC evidence, expert witnesses, or a trial push the fee higher. You are not required to hire an attorney for a first offense because it is civil rather than criminal, but second and subsequent offenses are criminal charges where legal representation becomes far more important, and defense costs on repeat offenses and felony charges run considerably higher.
Towing, Assessment, and Reinstatement
The bill starts running the night of the stop. Your vehicle will be towed and impounded, and Wisconsin law lets the municipality hold it until every towing, transportation, and storage fee is paid.4Wisconsin State Legislature. Wisconsin Code 349.115 – Authority to Impound Vehicles A few days of storage plus the tow typically runs $200 to $500.
Everyone convicted of OWI must complete an Intoxicated Driver Program assessment. It costs about $275, and the law does not allow that fee to be waived or reduced. The assessment produces a Driver Safety Plan. Some people are ordered into a short education program; others land in outpatient or inpatient treatment that can run $1,000 or more out of pocket. Insurance sometimes covers portions of treatment but rarely the assessment. Skip the plan and the DOT cancels or denies your license, including any occupational license.5Wisconsin Department of Transportation. OWI Assessment and Driver Safety Plan People trip on this: they pay the fines, assume they are done, and then find their license is still suspended.
Once your revocation period ends, a $200 reinstatement fee is owed to the Wisconsin DMV before you can drive legally again.6Wisconsin Department of Transportation. DMV Fees If you apply for an occupational license during the revocation, add about $50 for the application, plus the SR-22 filing needed to get it.
Lost wages sit in the background of all of this. Court appearances, the assessment, and treatment sessions all happen during working hours. Thirty missed hours at $25 an hour is $750 gone before you count anything else.
When an Ignition Interlock Device Is Required
An ignition interlock device is a breathalyzer wired into the ignition; the engine will not start without a clean sample. Wisconsin courts are required to order one in three situations: a first offense with a BAC of 0.15 or higher, any repeat OWI, or any refusal to submit to a chemical test.7Wisconsin State Legislature. Wisconsin Code 343.301 – Installation of Ignition Interlock Device
The device has to go on every vehicle titled or registered in your name. Installation runs about $50 to $100 per device, and monthly lease and calibration fees are roughly $65 to $90 depending on the vendor. Over a one-year requirement on a single vehicle, plan on $850 to $1,200. Two vehicles doubles it. Drivers whose income is below 150% of the federal poverty level may qualify for reduced IID fees through the court.8Wisconsin Department of Transportation. Ignition Interlock Device
Insurance Increases and SR-22
The multi-year insurance hit is the number most people underestimate. Wisconsin does not require an SR-22 for a first-offense OWI revocation as long as the revocation was only for the OWI itself. Second and subsequent offenses, or a revocation involving factors like a test refusal, require an SR-22 certificate of financial responsibility, maintained for three years from the date you become eligible to reinstate.9Wisconsin Department of Transportation. SR22 Certificate (Proof of Insurance/Financial Responsibility) The filing fee itself is usually about $25.
The premium change is the real cost. An OWI moves you into a high-risk category, and Wisconsin drivers with an OWI commonly see annual premiums climb to around $2,100 to $2,200 or more. For someone previously paying $1,000 a year, that is roughly $1,000 to $1,200 extra each year, and elevated rates typically stay in place for three to five years depending on the insurer. The insurance bump alone can add $3,000 to $6,000 to the total cost of a single OWI.
How Repeat Offenses Change the Total
Wisconsin counts prior offenses using lifetime convictions for certain serious charges combined with a 10-year look-back window for standard OWI offenses.1Wisconsin State Legislature. Wisconsin Code 346.65 – Operating Under the Influence Penalties A second offense with a prior within 10 years is a criminal misdemeanor with a fine of $350 to $1,100, plus the $535 surcharge and court costs, plus mandatory jail of 5 days to 6 months. A second offense with no prior within 10 years is treated the same as a first offense for penalty purposes. A third offense carries a fine of $600 to $2,000 plus surcharge, and 45 days to 1 year in county jail.
A fourth OWI is a Class H felony regardless of when the earlier offenses happened. The fine ranges from $600 to $10,000, plus the $535 surcharge, and imprisonment ranges from 60 days to 6 years.1Wisconsin State Legislature. Wisconsin Code 346.65 – Operating Under the Influence Penalties Felony convictions carry consequences well beyond the courtroom, including trouble finding employment and the loss of certain civil rights. Even the five-day minimum on a second offense translates into lost wages, and many employers treat any jail time as grounds for termination. Bail or bond adds another line item that varies widely by county.
Travel to Canada
One cost that blindsides people: an OWI conviction can make you inadmissible to Canada. Canada treats impaired driving as a serious criminal offense, and border agents can turn you away over a single misdemeanor-level conviction. Two routes exist to get back in. A Temporary Resident Permit allows short-term entry for CAD $246.25 per application. Criminal Rehabilitation eliminates the inadmissibility finding permanently, but you must wait at least five years after completing your entire sentence (probation, fines, and license revocation) before applying, and the application also costs CAD $246.25.10Immigration, Refugees and Citizenship Canada. Citizenship and Immigration Application Fees Those are just the government fees; many people hire an immigration attorney to prepare the application, adding another $1,000 or more.
Adding It All Up
For a first offense with a BAC below 0.15 and no interlock requirement, a realistic tally looks like $850 to $1,100 to the court, $275 for the assessment, $200 for reinstatement, $200 to $500 for towing and impound, $2,000 to $5,000 for an attorney, and $3,000 to $6,000 in extra insurance costs over the following years. That puts a straightforward first offense between $6,500 and $13,000 all in.
If your BAC was 0.15 or higher, add $850 to $1,200 per vehicle per year for the interlock. If the Driver Safety Plan orders treatment rather than a short education class, add $1,000 or more. A second offense within 10 years layers on higher fines, mandatory jail time, longer revocation, SR-22 requirements, and a longer interlock period. A fourth offense as a felony can easily reach $20,000 to $30,000 in direct costs alone, before counting income lost to imprisonment. The court fine is never the number that matters. It is everything that follows it.