A third drunk driving offense in Wisconsin is usually a misdemeanor, not a felony. It becomes a felony only when a child under 16 was in the vehicle or when the driver injured someone. Either trigger changes the stakes from county jail time to a prison sentence and a permanent felony record.
When a Third OWI Crosses Into Felony Territory
A standalone third OWI, with no aggravating facts, is charged as a criminal misdemeanor. Two circumstances change that classification.
The first is having a passenger under 16 in the car at the time of the offense. Wisconsin law makes a third or subsequent OWI with a minor present a felony, with doubled fines and jail terms, even if no one is hurt.1Wisconsin State Legislature. Wisconsin Code 346.65 – Penalties for Violating Sections 346.62 to 346.64
The second is injuring another person while driving intoxicated. With any prior OWI on the record, causing injury makes the new charge a Class H felony. If the injuries amount to great bodily harm, the charge rises to a Class F felony under a separate statute.2Wisconsin State Legislature. Wisconsin Code 940.25 – Injury by Intoxicated Use of a Vehicle
One more boundary worth knowing: a fourth OWI is automatically a Class H felony in Wisconsin, with no aggravating factor required.3Wisconsin Department of Transportation. OWI and Related Alcohol and Drug Offense Penalties Anyone facing a third charge is one incident away from a mandatory felony regardless of circumstances.
Penalties for a Misdemeanor Third OWI
Even without felony elevation, a third OWI carries mandatory incarceration. The sentence runs from 45 days to one year in county jail, with fines between $600 and $2,000.4Wisconsin State Legislature. Wisconsin Code 346.65 – Penalties for Violating Sections 346.62 to 346.64 A $535 driver improvement surcharge and other court costs push the real total well above the stated fine.5Wisconsin State Legislature. Wisconsin Code 346.655 – Driver Improvement Surcharge
The court revokes the driver’s license for two to three years. An occupational license becomes available after the first 45 days, but only after an alcohol and drug assessment and only if the person is following the resulting driver safety plan.6Wisconsin State Legislature. Wisconsin Code 343.30 – Revocation of Licenses That occupational license is limited: typically to work, school, treatment, and medical appointments, often with route and time restrictions.
An ignition interlock device is required on every vehicle the person owns or operates for one to three years. The AODA assessment is mandatory, and the person must complete whatever treatment the safety plan calls for. Falling out of compliance triggers another revocation that lasts until the person is back in the program.7Wisconsin State Legislature. Wisconsin Code 343.30 – Revocation of Licenses – Section: Assessment and Driver Safety Plan
Penalties for a Felony Third OWI
How severe the felony penalties get depends on which aggravating factor applies.
Minor Under 16 in the Vehicle
With a child under 16 in the car, the standard third-offense penalties double. Fines run from $1,200 to $4,000, and the jail term runs from 90 days to one year.1Wisconsin State Legislature. Wisconsin Code 346.65 – Penalties for Violating Sections 346.62 to 346.64 License revocation doubles to four to six years, with the IID requirement matching that longer period.6Wisconsin State Legislature. Wisconsin Code 343.30 – Revocation of Licenses The longer-term damage is the felony record itself.
Causing Injury
A Class H felony for causing injury while intoxicated with a prior OWI carries up to six years in state prison and a fine up to $10,000.8Wisconsin State Legislature. Wisconsin Code 939.50 – Classification of Felonies
If the victim suffers great bodily harm, the charge becomes a Class F felony, with up to 12 years and 6 months in prison and fines up to $25,000.2Wisconsin State Legislature. Wisconsin Code 940.25 – Injury by Intoxicated Use of a Vehicle The $535 OWI surcharge still applies on top.5Wisconsin State Legislature. Wisconsin Code 346.655 – Driver Improvement Surcharge
What Counts as a Prior Offense
Wisconsin counts a wide range of past events when deciding whether a new charge is a third offense:
- OWI and PAC convictions under state law or local ordinance.
- License revocations for refusing a chemical test.
- Out-of-state convictions for driving while intoxicated, under the influence of drugs, with an excessive alcohol concentration, or refusing testing.
- Convictions under the laws of a federally recognized tribe or band in Wisconsin for equivalent offenses.
- Prior convictions for causing injury while intoxicated or for intoxicated-use homicide.
Multiple charges from a single incident count as one prior.9Wisconsin State Legislature. Wisconsin Code 343.307 – Prior Convictions, Suspensions, or Revocations to Be Counted as Offenses
The lookback period surprises people. Wisconsin uses a ten-year window for second offenses, but for a third or subsequent offense it looks at the person’s entire lifetime. A conviction from decades ago still counts. The lifetime rule applies to qualifying convictions on or after January 1, 1989.
Consequences That Outlast the Sentence
A felony OWI brings restrictions that keep operating long after jail or prison.
Firearms
Federal law bars anyone convicted of a crime punishable by more than one year in prison from possessing firearms or ammunition.10Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts A Wisconsin felony OWI meets that threshold. The ban applies nationwide, lasts indefinitely, and violating it is a separate federal offense carrying up to 10 years.
Commercial Driver’s License
Federal regulations require lifetime CDL disqualification after two alcohol-related offenses, whether or not the person was driving commercially at the time.11eCFR. 49 CFR 383.51 – Disqualification of Drivers By a third OWI, the lifetime bar is already in place. A state may allow a reinstatement petition after 10 years with an approved rehabilitation program, but any further violation after reinstatement is permanent.
Travel to Canada
Canada treats impaired driving as a serious crime and grounds for inadmissibility. Someone with multiple OWI convictions generally cannot rely on deemed rehabilitation and would need to apply for Criminal Rehabilitation or a Temporary Resident Permit to enter lawfully.12Government of Canada. Overcome Criminal Convictions Criminal Rehabilitation requires at least five years to have passed since the sentence was completed, probation included. The restriction reaches both felony and misdemeanor convictions.
Total Financial Cost
The court-imposed fine is only one piece. Defense attorney fees for a third-offense OWI commonly run $2,000 to $10,000. IID installation and monthly monitoring continue through the required period. The AODA assessment and any treatment carry their own costs. Insurance premiums stay elevated for years. A felony conviction also appears on background checks and can block jobs, professional licenses, and housing. Wisconsin does not automatically expunge OWI convictions.