Wisconsin OWI/DUI defense

4th-Offense OWI/DUI (Felony) in Wisconsin: Penalties, Defenses, and What to Expect

Since 2015 Wisconsin Act 371 took effect on January 1, 2017, a fourth or subsequent OWI in Wisconsin is charged as a Class H felony when the prior-counting rules are met. The maximum penalty is 6 years in prison and a $10,000 fine. For 4th-offense counting, Wisconsin reaches back to January 1, 1989. A 1990 qualifying prior can matter as much as one from last year.

Cafferty & Scheidegger OWI/DUI defense attorneys serving southeast Wisconsin
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Southeast Wisconsin

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Racine · Kenosha · Walworth

What makes a 4th-offense OWI a felony?

Wisconsin Statute §346.65(2)(am)(4) classifies a 4th or subsequent OWI violation as a Class H felony. Before 2015 Wisconsin Act 371 took effect on January 1, 2017, the felony threshold was the 5th offense. The legislature moved it down by one. The change was not retroactive. It applies to offenses committed on or after January 1, 2017.

The prior-offense count includes all qualifying Wisconsin OWI convictions (including civil forfeitures), refusal revocations, and qualifying out-of-state convictions. For 4th-offense counting, there is no 10-year window. Priors are counted back to January 1, 1989 under §343.307(1).

Bail and bond: Felony OWI defendants are typically held on a cash bail with conditions that include absolute sobriety, no driving without a valid license, and installation of an IID if bond is posted. Violating conditions can lead to bail revocation. Call us before your initial appearance if possible.

Penalties at a glance

Consequence 4th-offense OWI
Classification Class H felony
Jail/prison 60-day statutory minimum; up to 6 years (3 initial confinement + 3 extended supervision)
Fine $600 minimum, up to $10,000 (BAC enhancements under §346.65(2)(g): doubled at .17-.199, tripled at .20-.249, quadrupled at .25+)
License revocation 2-3 years
Ignition interlock (IID) Required, 1-3 years after license reinstatement
Alcohol assessment Required; inpatient treatment often ordered
OWI surcharge $535 (§346.655)
Felony record Permanent (affects voting, firearms, employment, housing)
Cafferty & Scheidegger credentials. Over 30 years defending felony OWI/DUI cases in Wisconsin
When the stakes are highest, experience and credibility matter.

The real-world consequences of a felony record

A felony conviction in Wisconsin does far more than impose a sentence. It triggers a cascade of collateral consequences that persist long after the sentence is served:

Defense strategies for felony OWI

Prior-offense challenge

The state must prove each prior offense that elevates the charge. We examine every prior conviction for constitutional defects: Was the defendant represented by counsel? Was the plea voluntary and informed? Was jurisdiction proper? An uncounseled prior conviction that resulted in jail time cannot be used for enhancement under Nichols v. United States. Striking even one prior can reduce the charge from a felony to a 3rd-offense misdemeanor.

Suppression of the stop and arrest

The Fourth Amendment doesn’t bend because the charge is a felony. Every challenge available in a 1st-offense case (illegal stop, improper field sobriety testing, defective breath or blood testing) applies with even higher stakes here. A successful suppression motion can collapse the entire case.

Blood and breath test challenges

At this offense level, the BAC result drives both the severity of the sentence and the length of the IID requirement. We retain independent toxicologists to review lab procedures, calibration records, and chain of custody. Common issues include:

Sentencing alternatives

Even when a conviction is unavoidable, the sentence is not predetermined. Wisconsin law allows courts to consider:

The timeline of a felony OWI case

  1. Arrest & booking: You are booked into county jail. Bond is set at the initial appearance, typically within 48 hours.
  2. Preliminary hearing: Within 10 days if in custody, 20 if released on bond. The state must show probable cause.
  3. Arraignment: Formal reading of charges. Plea entered.
  4. Pretrial motions: Suppression motions, prior-offense challenges, expert discovery. This is where most cases are won or lost.
  5. Trial or negotiation: Jury trial is a constitutional right at the felony level. Plea negotiations run in parallel.
  6. Sentencing: If convicted, sentencing considers the PSI report, treatment evaluations, victim impact, and defense mitigation.

Do not wait. Felony OWI cases move fast once charges are filed. Early attorney involvement, ideally before the initial appearance, gives us the widest range of options. Call (262) 632-5000 now. We serve Racine, Kenosha, and Walworth counties.

Representative outcomes

OWI results start with the issue we can challenge

The goal is not to explain the penalty after it happens. The goal is to find the fact, statute, prior record, or testing issue that can reduce or prevent the consequence before the case resolves.

See representative OWI results

Where 4th-offense OWI (felony) cases are heard across our 3-county service area

These cases are filed at the county circuit court level. Below are the currently elected District Attorneys and the size of each county's circuit court bench. Full roster on each county hub.

Racine County

District Attorney: Tricia Hanson verify →

9 currently sitting circuit court judges - see the Racine County hub for the full roster, branch assignments, and county-specific OWI stats.

Bench data verified 2026-05-03

Kenosha County

District Attorney: Xavier Solis verify →

8 currently sitting circuit court judges - see the Kenosha County hub for the full roster, branch assignments, and county-specific OWI stats.

Bench data verified 2026-05-03

Walworth County

District Attorney: Zeke Wiedenfeld verify →

4 currently sitting circuit court judges - see the Walworth County hub for the full roster, branch assignments, and county-specific OWI stats.

Bench data verified 2026-05-03

Frequently asked questions

When did a 4th OWI become a felony in Wisconsin?
2015 Wisconsin Act 371 moved the felony threshold from the 5th offense to the 4th offense, effective January 1, 2017. Before that, a 4th OWI was a misdemeanor unless the prior offenses fell within a 5-year window. The change was not retroactive. It applies to offenses committed on or after January 1, 2017. For 4th-offense counting, priors back to January 1, 1989 are counted regardless of when they occurred.
Will I go to prison for a 4th-offense OWI in Wisconsin?
A Class H felony carries up to 6 years in prison (3 years initial confinement plus 3 years extended supervision) and up to $10,000 in fines. Prison is a realistic outcome, but alternatives exist: treatment courts, electronic monitoring, Huber privileges, and carefully negotiated extended supervision conditions. Early attorney involvement maximizes the chance of avoiding state prison.
Can a felony OWI be reduced to a misdemeanor by challenging a prior conviction?
Yes. The state must prove each prior offense used to elevate the charge. If any prior conviction has constitutional defects (uncounseled pleas, defective colloquies, jurisdictional errors) it cannot be used for enhancement. Striking even one prior drops a 4th-offense felony to a 3rd-offense misdemeanor, eliminating the possibility of state prison.
What are the firearm consequences of a felony OWI conviction?
A Wisconsin felony conviction, including a Class H felony 4th-offense OWI, creates a federal firearm prohibition under 18 U.S.C. §922(g)(1) and a parallel state prohibition under Wis. Stat. §941.29. Possession of a firearm after conviction can become a new felony. Restoration requires a separate legal analysis, often involving a Wisconsin pardon and federal-law review. This is frequently the most durable collateral consequence of a felony OWI.
Does the BAC enhancement apply to a 4th-offense felony OWI?
Yes. Wis. Stat. §346.65(2)(g) stacks on top of the felony penalty. At a BAC of .17-.199 the mandatory minimum doubles; .20-.249 triples it; .25 and above quadruples it. Combined with the Class H felony baseline under §346.65(2)(am)4, a 4th offense with a BAC near .25 can carry a mandatory minimum that exceeds a year in confinement before any sentence-credit or probation calculation. This is why breath/blood suppression motions are often the highest-leverage play in a felony OWI case.
Is a 4th-offense OWI a felony in Wisconsin?
Yes, if the State proves the qualifying prior count. Under Wis. Stat. § 346.65(2)(am)4, a 4th or subsequent OWI committed on or after January 1, 2017 is a Class H felony. The change came from 2015 Wisconsin Act 371, which moved the felony threshold from the 5th offense down to the 4th. Class H carries up to 6 years in prison (3 initial confinement + 3 extended supervision) and up to a $10,000 fine. The 60-day statutory minimum confinement under § 346.65(2)(am)4 cannot be suspended or stayed.
How much is the fine for a 4th-offense OWI?
Under Wis. Stat. § 346.65(2)(am)4 (Class H felony framework via § 939.50(3)(h)), the fine ceiling is $10,000, with a $600 statutory minimum. The $535 OWI surcharge under § 346.655, court costs, IID monitoring, reinstatement fees, insurance impact, and BAC enhancements under § 346.65(2)(g) can all add to the financial hit.
Should I plead guilty to a 4th-offense OWI?
Do not plead before a thorough prior-conviction audit. The Class H felony designation under Wis. Stat. § 346.65(2)(am)4 can trigger federal firearm prohibition under 18 U.S.C. § 922(g)(1), state firearm prohibition under § 941.29, voting suspension during the sentence, immigration review for non-citizens, and felony-record consequences for work and licensing. Striking even one prior conviction can drop the charge to a 3rd-offense misdemeanor under § 346.65(2)(am)3, changing prison exposure and many collateral consequences.
Can a 4th-offense felony OWI be reduced?
Yes, by attacking a prior. The state must prove each prior used to elevate to felony status. We audit every prior for constitutional defects: uncounseled pleas resulting in jail (Nichols v. United States bar under federal law), defective plea colloquies, jurisdictional defects, identity-mismatch issues with old paper records, or out-of-state convictions that do not actually meet the "substantially similar" test under Wis. Stat. § 343.307(1). Striking even one prior drops the charge from Class H felony to 3rd-offense misdemeanor, eliminating prison exposure and the felony record entirely.
Does a 4th-offense felony OWI affect voting and firearm rights?
Yes, both. Wisconsin felons lose the right to vote until off paper (sentence + probation/parole/extended supervision complete) under Wis. Stat. § 6.03(1)(b); voting rights restore automatically once the sentence is fully discharged. Firearm rights are different: a felony OWI conviction triggers a lifetime ban under both federal law (18 U.S.C. § 922(g)(1)) and state law (Wis. Stat. § 941.29). Possession after conviction is itself a Class G felony carrying up to 10 years in prison. Restoration requires either a Wisconsin gubernatorial pardon or federal § 925(c) relief (currently unfunded and practically unavailable).
Will I lose my CDL with a 4th OWI?
A CDL holder needs a separate federal review immediately. Under 49 CFR § 383.51 and Wis. Stat. § 343.315, a first OWI or test refusal can disqualify commercial driving for 1 year, and a second major offense can create lifetime disqualification, with limited reinstatement paths in some circumstances. If a 4th OWI is charged, the prior commercial-driver history usually matters as much as the new state-court penalty.
How does the 4th-offense lookback period work?
There is no lookback window at the 4th-offense tier. Under Wis. Stat. § 343.307(1), all qualifying priors are counted back to January 1, 1989, regardless of how long ago they occurred or which state. Unlike the 10-year window that applies at the 2nd-offense tier under § 346.65(2)(am)2, every Wisconsin OWI conviction (including civil-forfeiture 1st offenses), every refusal revocation, and every "substantially similar" out-of-state conviction back to 1989 counts equally. A 1990 Illinois DUI counts the same as one from last year for the purpose of triggering the felony 4th.
What are the federal collateral consequences of a felony OWI?
Federal consequences can outlast the state sentence. The federal firearm prohibition under 18 U.S.C. § 922(g)(1) is often the most durable. Non-citizens, CDL holders, people with federal employment or security-clearance concerns, and people in subsidized housing should get a separate collateral-consequences review before plea discussions. A felony OWI is not just a jail-and-license case.

Your defense team

Every case is worked directly by a named attorney from first call through final disposition. You will never be handed off to a paralegal or rotated through associates. Your attorney knows your case because they built it.

Patrick K. Cafferty, founding partner and OWI/DUI defense attorney in Racine, Wisconsin

Patrick K. Cafferty

Founding Partner

Marquette Law graduate defending OWI and criminal cases across southeast Wisconsin for over 32 years. Named a Wisconsin Super Lawyer® 18 consecutive years and rated AV Preeminent® by Martindale-Hubbell.

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Jillian J. Scheidegger, partner handling OWI/DUI and criminal defense across southeast Wisconsin

Jillian J. Scheidegger

Partner

Partner since 2013 handling criminal defense and OWI matters for adults and juveniles. Marquette Law graduate, Wisconsin Super Lawyer®, and President-Elect of the Racine County Bar Association.

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Carl Johnson, OWI/DUI trial attorney practicing in Racine, Kenosha, and Walworth counties

Carl Johnson

Attorney

Marquette Law 2006, UW-Madison undergrad. Extensive trial experience including first-degree homicide and sexual assault defense. Racine native practicing in Racine, Kenosha, and Walworth counties.

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Juan S. Ramirez, bilingual OWI/DUI defense attorney and former public defender

Juan S. Ramirez

Attorney

Michigan State Law graduate and former Racine County Public Defender. Bilingual English/Spanish. Won the WACDL Hanson Memorial Advocate Prize for a homicide acquittal. Advises on how criminal charges affect immigration status.

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Cafferty & Scheidegger is a full-service criminal defense firm. This microsite covers OWI specifically; for the larger practice, case results, attorney bios, and all other practice areas, visit the main site.