Wisconsin DUI laws use the term OWI and set the blood alcohol limit at 0.08%. A first offense OWI is a civil forfeiture rather than a crime, but fines still range from $150 to $300 plus a $435 surcharge. Fourth and higher offenses carry a stricter 0.02% limit and felony charges. This guide covers penalty tiers, license revocation, ignition interlock rules, and implied consent under Wisconsin Statute Section 346.63.
What OWI Means In Wisconsin
Wisconsin law does not use the term DUI in its statutes. The official term is OWI, meaning operating while intoxicated. A driver violates Wisconsin Statute Section 346.63, operating under the influence by being under the influence of an intoxicant or drug to a degree that makes safe driving impossible, or by driving with a prohibited alcohol concentration.
A person does not need to be driving to be charged with OWI in Wisconsin. The statute defines operating as the physical manipulation or activation of any control needed to put a vehicle into motion. This means a driver found asleep behind the wheel with the engine running can still face an OWI charge, even if the vehicle never moved from where it was parked.
Blood Alcohol Concentration Limits
The standard prohibited alcohol concentration in Wisconsin is 0.08% for first, second, and third offense drivers. Commercial drivers operating a commercial motor vehicle face a lower limit of 0.04%. Drivers younger than 21 are subject to a zero tolerance rule and cannot drive with any detectable alcohol concentration above 0.0%.
Drivers with three or more prior OWI related offenses face a stricter 0.02% limit that applies for the rest of their driving life in Wisconsin. This same 0.02% limit also applies to any driver operating under a court ordered ignition interlock device. Fourth and higher offenders are held to this same reduced threshold under Wisconsin Statute Section 340.01.
Penalties For A First Offense
A first offense OWI in Wisconsin is treated as a civil forfeiture, not a criminal charge, which makes Wisconsin unusual among the states. The fine ranges from $150 to $300, with an additional $435 OWI surcharge added under Wisconsin Statute Section 346.655. No jail time applies unless a minor under 16 was a passenger or the offense caused injury.
License revocation for a first offense runs 6 to 9 months. If the driver’s alcohol concentration was 0.15% or higher, the court must order an ignition interlock device or a 24 seven sobriety program for at least one year. A first time offender may apply immediately for an occupational license, which permits limited driving such as to work or school.
If a minor under 16 was in the vehicle at the time of a first offense, penalties increase substantially. The fine rises to $350 to $1,100 and jail time of 5 days to 6 months becomes possible. Revocation and ignition interlock periods extend to 12 to 18 months, plus any additional time tied to a jail sentence, under Wisconsin Statute Section 343.30.
Penalties For A Second Offense
A second OWI offense is treated differently depending on when the first offense occurred. If the first offense happened more than 10 years earlier, the second offense is penalized the same as a first offense civil forfeiture, with the same $150 to $300 fine range. This 10 year measurement runs from violation date to violation date under Wisconsin Statute Section 346.65.
If the second offense occurs within 10 years of the first, or if the driver has a prior offense involving great bodily harm or homicide by intoxicated use, the case becomes a criminal misdemeanor. The fine range increases to $350 to $1,100 plus the $435 surcharge, with a jail term of 5 days to 6 months. Courts may allow the Safe Streets probation option, which reduces confinement to 5 to 7 days if the offender completes required treatment.
License revocation for this tier of second offense runs 12 to 18 months, extended by any jail time served. An ignition interlock device or 24 seven sobriety program becomes mandatory for 1 year to 18 months, also extended by confinement length. An occupational license is not immediately available and requires a 45 day waiting period before application under Wisconsin Statute Section 343.30.
Penalties For A Third Offense
A third OWI offense in Wisconsin is a criminal misdemeanor regardless of how much time has passed since the prior offense. The fine ranges from $600 to $2,000 plus the $435 surcharge, and this base fine can be doubled, tripled, or quadrupled under the Excessive BAC Escalator rule if the alcohol concentration was significantly above the legal limit. Jail time ranges from 45 days to 1 year.
License revocation for a third offense runs 2 to 3 years, extended by any confinement served. An ignition interlock device or 24 seven sobriety program is required for 1 to 3 years, also extended by jail time. As with a second offense within the criminal tier, an occupational license cannot be requested until 45 days have passed, and absolute sobriety becomes a required condition of that restricted license.
Fourth Offense And Felony Tiers
A fourth OWI offense in Wisconsin becomes a Class H felony, carrying a fine of $600 to $10,000 plus the surcharge and a prison term of 60 days to 6 years. A fifth or sixth offense is classified as a Class G felony, with fines from $600 up to $25,000 and a mandatory bifurcated sentence that includes at least an 18 month minimum term of initial confinement under Wisconsin Statute Section 346.65.
Seventh through ninth offenses are charged as a Class F felony, carrying fines up to $25,000 and imprisonment of 3 to 12.5 years. A tenth or greater offense is a Class E felony, with fines up to $50,000 and a prison term of 4 to 15 years. For all felony tiers, license revocation runs at least 2 to 3 years and can extend further based on jail or prison time served.
A person convicted four or more times in their lifetime, or twice within a 25 year period combined with certain other serious vehicle offenses, can face a lifetime license revocation in Wisconsin. This lifetime revocation permits no occupational license under any circumstance. Reinstatement after a lifetime revocation tied to four countable offenses becomes possible only after 10 years have passed.
Implied Consent And Chemical Testing
Wisconsin operates under an implied consent law found in Wisconsin Statute Section 343.305, implied consent law. By driving on Wisconsin public highways, a driver is considered to have already agreed to a breath, blood, or urine test if a law enforcement officer has probable cause to request one following a lawful OWI arrest. This consent applies regardless of whether the driver later agrees to be tested.
Refusing a chemical test under this law triggers its own separate penalty, independent of whether an OWI conviction ever follows. A first refusal results in a 1 year license revocation and a mandatory ignition interlock device or 24 seven sobriety program requirement for at least 1 year. A driver may apply for an occupational license after a 30 day waiting period following a first refusal.
A second refusal carries a 1 year revocation if there was no prior OWI within the past 10 years, or a 2 year revocation if a qualifying prior offense exists. A third or greater refusal results in a 3 year revocation. In all refusal cases the maximum revocation length can double the base period, and absolute sobriety typically becomes a condition of any occupational license granted afterward.
Causing Injury Or Death While OWI
Wisconsin treats OWI offenses that cause harm to another person with substantially higher penalties than standard OWI charges. Causing injury while OWI with no prior offense or refusal carries a fine of $300 to $4,000 and a jail term of 30 days to 2 years under Wisconsin Statute Section 346.65. If the driver has a prior OWI or refusal, this becomes a Class H felony with a fine up to $10,000 and up to 6 years imprisonment.
Causing great bodily harm while OWI is a Class F felony under Wisconsin Statute Section 940.25, carrying a fine up to $25,000 and up to 12.5 years imprisonment. Homicide while OWI under Wisconsin Statute Section 940.09 is a Class D felony with a fine up to $100,000 and up to 25 years imprisonment for a first such offense. If the driver has a prior OWI related offense, homicide while OWI becomes a Class C felony with a maximum sentence of 40 years.
Ignition Interlock Devices And The 2026 Law Change
An ignition interlock device is a breath testing unit installed in a vehicle that prevents the engine from starting if it detects alcohol on the driver’s breath. Wisconsin courts order these devices for any repeat OWI offender, for first offenders whose alcohol concentration was 0.15% or higher, and for any driver who refused a chemical test, under Wisconsin Statute Section 343.301. The device must be installed on every vehicle titled or registered in the driver’s name unless financial hardship applies.
Historically, drivers with a repeat OWI offense had to wait 45 days after conviction before applying for an occupational license, even after agreeing to install an ignition interlock device. This changed under 2025 Wisconsin Act 210, signed into law and effective in April 2026, which created a compliance based system for interlock device removal and eligibility. Under this law, a driver may now apply for an occupational license immediately upon installing an ignition interlock device rather than waiting out the prior fixed period.
2025 Wisconsin Act 210 also created stricter penalties for a person who attempts to drive while intoxicated with an ignition interlock device installed, or who tampers with or bypasses the device entirely. This shift toward a compliance based removal system reflects practices already used in more than 30 other states and is intended to reduce repeat OWI offenses by keeping offenders on a monitored path back to normal driving privileges rather than a rigid waiting period.
Common Misconceptions About Wisconsin OWI Law
Many people assume a first OWI in Wisconsin is treated lightly because it is not a criminal offense. While a first offense civil forfeiture does not create a criminal record, it remains on the driver’s record permanently and counts as a prior offense if that person is ever charged again. A conviction still triggers license revocation, mandatory surcharges, and possible ignition interlock requirements.
Another common misunderstanding involves how long a prior OWI counts against a driver. Wisconsin does not use a simple reset period for every offense tier. For a second offense the 10 year lookback can matter, but for third and higher offenses, and for felony classification purposes, every prior OWI conviction counts for the person’s lifetime under Wisconsin Statute Section 346.65, regardless of how long ago it occurred or how the driving record has looked since.
Some drivers also assume that refusing a chemical test avoids all penalty exposure. Wisconsin’s implied consent law imposes its own separate license revocation for a refusal, independent of any later OWI conviction or acquittal. A driver facing a refusal related revocation can still be prosecuted for OWI itself based on the officer’s observations, meaning refusal does not prevent an OWI charge and often increases the total consequences a driver ultimately faces, and further details are available on the Disclaimer page.
Disclaimer
This article is for general informational purposes only. It is not legal advice. Lawwalls publishes informational content only and does not provide legal services or legal advice.
For legal advice about your specific situation contact a licensed attorney in your state. Laws change and vary by jurisdiction. Verify current rules with official government sources or a qualified lawyer.