Wisconsin · OWI · Checked October 2026

Refusing a Breath or Blood Test in Wisconsin

Refusing a Breath or Blood Test in Wisconsin: What Are the Rules?

What happens if you refuse a breath or blood test in Wisconsin.

Refusal penalty
Revocation by court order: 1 year for a first improper refusal (occupational license after 30 days), 2 years with one prior counted within 10 years, 3 years with two or more priors; periods doubled with a minor passenger under 16; ignition interlock order; assessment and driver safety plan. You have 10 days from the Notice of Intent to Revoke to request a court hearing; without a request, revocation starts 30 days after the notice
License suspension for refusing
1 year (first improper refusal); 2 years with one prior within 10 years; 3 years with two or more priors (court-ordered revocation)
Deadline to challenge
10 business days

Refusal Penalties in Wisconsin

revocation by court order: 1 year for a first improper refusal (occupational license after 30 days), 2 years with one prior counted within 10 years, 3 years with two or more priors; periods doubled with a minor passenger under 16; ignition interlock order; assessment and driver safety plan. You have 10 days from the Notice of Intent to Revoke to request a court hearing; without a request, revocation starts 30 days after the notice.Wis. Stat. § 343.305(9)(a), (10)(a)-(c), (10m); Wis. Stat. § 343.301(1g)(a)1.

Official source: refusal penalties (Wisconsin)

License Suspension for Refusing in Wisconsin

1 year (first improper refusal); 2 years with one prior within 10 years; 3 years with two or more priors (court-ordered revocation)Wis. Stat. § 343.305(7)(a), (8)(a)-(b), (9)(a)4., (10)(b)

Official source: license suspension for refusing (Wisconsin)

More on OWI Law in Wisconsin

See the full overview of OWI laws in Wisconsin and read about implied consent laws in every state.

This page summarizes Wisconsin law from official sources, checked October 2026. It isn't legal advice; a lawyer licensed in Wisconsin can advise on your case.

Frequently Asked Questions

What Happens if You Refuse a Breath Test in Wisconsin?

revocation by court order: 1 year for a first improper refusal (occupational license after 30 days), 2 years with one prior counted within 10 years, 3 years with two or more priors; periods doubled with a minor passenger under 16; ignition interlock order; assessment and driver safety plan. You have 10 days from the Notice of Intent to Revoke to request a court hearing; without a request, revocation starts 30 days after the notice.

How Long Is the Suspension for Refusing?

1 year (first improper refusal); 2 years with one prior within 10 years; 3 years with two or more priors (court-ordered revocation)

Sources

  1. Implied consent: Wis. Stat. § 343.305(9)(a), (10)(a)-(c), (10m); Wis. Stat. § 343.301(1g)(a)1.
  2. License suspension and hearing: Wis. Stat. § 343.305(7)(a), (8)(a)-(b), (9)(a)4., (10)(b)

dui.help is an independent guide, not a law firm or a government agency, and doesn't give legal advice. For advice on your case, talk to a lawyer licensed in your state; your state bar can refer you, and if you can't afford a lawyer, ask the court about a public defender.