Wisconsin Ignition Interlock Cost Calculator 2026
State-specific OWI cost estimates for Wisconsin, including fines, attorney fees, SR-22 insurance, ignition interlock, and more.
Your Wisconsin OWI estimate will appear here
Answer the questions and press the button. You will get a low, typical and high figure, with each cost listed on its own line.
- Uses this state's own fines, suspension and interlock rules
- Market costs such as attorney fees are labelled as estimates
- Free, and nothing to sign up for
Wisconsin OWI FAQ
How much does an OWI cost in Wisconsin?
Attorney fees for a first-offense OWI in Wisconsin typically run $1,500 to $6,000 on our estimates, and the fine is $150 to $300 before court costs. Adding insurance, interlock, education, reinstatement and lost time from work, our calculator puts a typical first offense at about $17,681 (range $8,646 to $28,250) with its default answers; the median of our 50 state estimates is $17,615.
How long is your license suspended for a first OWI in Wisconsin?
A first-offense OWI conviction in Wisconsin carries a license suspension of 270 days. A hardship or restricted license may be available during this period.
Is an ignition interlock device required in Wisconsin for a first OWI?
In some cases. Wisconsin requires an interlock for a first offense only at a BAC of 0.15% or higher, or if you refused the test. When it applies, it lasts 12 months.
How long is SR-22 insurance required after an OWI in Wisconsin?
Wisconsin requires SR-22 high-risk insurance filing for 3 years following an OWI conviction.
Can an OWI be expunged in Wisconsin?
Wisconsin does not allow OWI convictions to be expunged. Some states have other ways to limit who can see a record, such as sealing, which this site does not cover yet.
Wisconsin OWI figures this calculator uses
- Ignition interlock, first offense
- 12 months (at BAC 0.15%+)
- Ignition interlock, second offense
- 18 months
- Ignition interlock, third offense
- 36 months
- Required for every offense
- No
- Typical monthly lease and monitoring (estimate)
- $80
Statutory figures were checked against Wisconsin law (primary source) and last verified May 2026. Typical ranges are market estimates, not law; see our methodology.
Worked example
With the calculator's default answers (offense number: First offense; number of vehicles you own: 1 vehicle):
| Cost | Typical |
|---|---|
| Installation Fee | $100 |
| Monthly Lease and Monitoring (12 months) | $960 |
| Calibration and Service Visits | $144 |
| Removal Fee | $75 |
| Estimated total (range $1,042 to $1,604) | $1,279 |
Change the answers in the calculator above to see your own estimate.
On our estimates, a typical first-offense OWI in Wisconsin comes to about $17,681, the 25th highest of the 50 states. The median of our 50 state estimates is $17,615. These come from the total-cost calculator with its default answers, not from a national survey.
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Wisconsin OWI Total Cost Calculator →Wisconsin OWI Overview
All Wisconsin OWI Calculators & Laws →Related Calculators
Wisconsin Attorney Cost →Wisconsin Total Cost →Wisconsin SR-22 Insurance →Wisconsin Suspension Timeline →Related Guide
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