Why the 2nd offense is a turning point
Wisconsin Statute §346.65(2)(am)2. makes a second OWI offense a misdemeanor. This is the inflection point in Wisconsin OWI law: you go from a civil forfeiture with no jail and no criminal record to a criminal charge that appears on background checks, triggers mandatory incarceration, and imposes significantly longer driving restrictions.
The 2nd-offense tier uses a 10-year look-back. Under §346.65(2)(am)2, the new offense is only treated as a 2nd offense if the qualifying prior OWI conviction, refusal revocation, or equivalent out-of-state offense falls within the 10 years preceding the new violation. Priors older than 10 years generally don’t count at this tier, though they do re-enter the count at the 3rd-offense and 4th-offense tiers, where §346.65(2)(am)3 and 4 set no time period at all.
The 10-year rule matters: If your only prior OWI is more than 10 years old, the new charge is typically prosecuted as a 1st-offense civil forfeiture, not a criminal misdemeanor. Getting the prior-offense count right is often the difference between a ticket and a jail sentence, which is why we audit the DOT driving record and certified conviction documents before any plea discussion.
Penalties at a glance
| Consequence | 2nd-offense OWI |
|---|---|
| Classification | Misdemeanor |
| Jail | 5 days - 6 months (treatment-court disposition under §346.65(2)(bm) can reduce the minimum to 5-7 days) |
| Fine | $350-$1,100 + $535 OWI surcharge (§346.655) + court costs |
| License revocation | 12-18 months |
| Ignition interlock (IID) | Required, 12-18 months |
| Alcohol assessment | Required; treatment ordered if indicated |
| Criminal record | Yes (misdemeanor, appears on background checks) |
Common defenses in 2nd-offense cases
Challenging the prior conviction
The state must prove the existence of a valid prior OWI to elevate the charge. We examine the prior conviction record for defects: Was the defendant properly advised of rights? Was the plea voluntary? Was it even the same person? (Name matches alone are insufficient.) If the prior can’t be proved, the charge drops to a 1st-offense civil forfeiture.
Suppression of the stop
The Fourth Amendment applies with full force at every offense level. Officers need reasonable suspicion to stop your vehicle and probable cause to arrest. Common suppression targets include:
- Stops based solely on anonymous tips without independent corroboration
- Equipment violations that didn’t actually exist
- Officer dashcam or bodycam footage that contradicts the police report
- OWI checkpoints that don’t comply with constitutional requirements
Breath and blood test challenges
At the 2nd-offense level, the BAC number drives both the IID duration and the court’s sentencing posture. Challenges to the test itself (calibration failures, observation-period violations, improper blood draws) can reduce or eliminate the BAC evidence entirely. See our discussion of breath test reliability for the technical details; they apply identically here.
Plea negotiation: the reckless driving alternative
In some counties, particularly where the BAC is near .08 or the stop is legally questionable, a reduction to reckless driving may be negotiable. This avoids the OWI count entirely, which is critical because it means the next OWI would be counted as a 2nd, not a 3rd (with mandatory 45 days jail).
The IID requirement
Starting with a 2nd offense, Wisconsin mandates an ignition interlock device on every vehicle registered in your name for the duration of the IID order (typically 12-18 months). Key details:
- Read §343.301(2m)(a) carefully on timing: the operating-privilege restriction "shall begin on the date the order under sub. (1g) (am) 1. is issued," while the minimum one-year duration is measured "after the date the department issues any license granted under this chapter." The restriction attaches at the order; the clock that has to run for at least a year starts when you are licensed again
- You must pay for installation and monthly monitoring (typically $75-$100/month)
- Violations (failed blows, missed rolling retests, tampering) extend the IID period and can trigger additional penalties
- An occupational license during the revocation period also requires IID installation
Collateral consequences
- Employment: A criminal misdemeanor on your record affects job applications, professional licensing, and security clearances.
- Insurance: SR-22 filing required. Expect 100-300% rate increases for 3-5 years.
- Future counting: This conviction counts toward the 3rd-offense and eventual felony 4th-offense thresholds. There is no expungement for OWI in Wisconsin.
- CDL holders: A 2nd OWI means lifetime CDL disqualification unless you qualify for reinstatement after 10 years.
Don’t delay. The stakes at the 2nd-offense level are qualitatively different from a 1st offense. Call (262) 632-5000 for a free consultation. We defend OWI cases in Racine, Kenosha, and Walworth counties.
