There are only two real ways to avoid jail time for a second DUI in Washington. The first is a court finding that incarceration would seriously endanger your physical or mental health, which lets a judge replace jail with electronic home monitoring or a 24/7 sobriety program. The second is deferred prosecution, and a law effective January 1, 2026, opened that door to a group of second-time defendants who were previously shut out. Outside those two paths, the 30-day minimum (45 days if your BAC was 0.15 or higher) is not suspendable.1Washington State Legislature. Washington Code 46.61.5055 – Alcohol and Drug Violators Penalty Schedule
The Jail Sentence You’re Trying to Avoid
Washington treats a DUI as a second offense when you have a prior DUI, physical control, or deferred prosecution within seven years, measured arrest date to arrest date. If your earlier offense sits outside that seven-year window, the court sentences you as a first-time offender and the analysis below does not apply.
Within the window, the mandatory minimums break down by BAC:
- BAC under 0.15 (or no test result other than refusal): 30 days in jail plus 60 days of electronic home monitoring.
- BAC of 0.15 or higher, or refusal: 45 days in jail plus 90 days of electronic home monitoring.
The monitoring is not a substitute for jail. It comes after. Both pieces are non-suspendable under normal circumstances, and the maximum sentence in either tier is 364 days.1Washington State Legislature. Washington Code 46.61.5055 – Alcohol and Drug Violators Penalty Schedule That’s the sentence the two exceptions below are built to displace.
The Health-Risk Exception
The penalty statute lets a court skip the mandatory jail sentence if it finds that time in custody would pose a substantial risk to your physical or mental health. When a judge makes that finding, the jail term and the standard electronic monitoring are both replaced by one of two alternatives:1Washington State Legislature. Washington Code 46.61.5055 – Alcohol and Drug Violators Penalty Schedule
- 180 days of electronic home monitoring, or
- 120 days in a 24/7 sobriety program.
The court has to state its reasons in writing. Judges do not grant this casually. A general preference to stay home will not carry the motion; what carries it is documentation tied to a specific condition. Medical records, a mental health treatment history, and a provider’s written statement explaining why incarceration is dangerous for you are the kinds of evidence courts credit.
What the 24/7 Sobriety Program Looks Like
If the court chooses the 24/7 sobriety option, you submit to regular testing for alcohol or drugs at a designated location, typically twice a day.2Washington State Legislature. Washington Code 36.28A.330 – 24/7 Sobriety Program Definitions You sign a written agreement covering the schedule, the testing location, fees, and your obligations. The difference from home monitoring is physical: you show up in person rather than being tracked remotely. Miss an appointment or fail a test and the court can impose the original jail sentence.
The program also has a secondary use in a second DUI case. Enrolling in six months of 24/7 sobriety monitoring (combined with a substance use disorder evaluation) is what lets you cut a two-year license revocation down to one year in the under-0.15 tier.
Deferred Prosecution and the 2026 Expansion
Deferred prosecution pauses your criminal case while you complete a structured treatment program. Finish successfully and the charges are dismissed. Fail, and the original charges return for sentencing. For a long time this was a once-in-a-lifetime option for DUI, which meant a person who used it on their first DUI could not use it again on a second.
That changed on January 1, 2026. A person who used deferred prosecution on a first DUI can now petition for a second deferred prosecution on a subsequent DUI charge, provided they have no other convictions that count as a “prior offense” under the penalty schedule. The earlier deferred prosecution no longer disqualifies you from getting a second one.3Washington State Legislature. Washington Code Chapter 10.05 – Deferred Prosecution
To qualify, you have to show the court that alcohol dependency, drug dependency, or a mental health condition contributed to the offense. The petition must be filed at least seven days before trial. The program itself runs for a minimum of two years and includes intensive outpatient or inpatient treatment, ongoing counseling, random testing, and total abstinence from alcohol and drugs. You pay for the treatment and monitoring the whole way through.
Deferred prosecution is the clearest path to avoiding jail entirely on a second offense. Read the eligibility rule carefully, though. It works when your only prior “offense” is a first-time deferred prosecution. If you already have a prior DUI conviction (rather than a prior deferral) on your record, deferred prosecution on the current charge is off the table, and you’re back to the health-risk exception as your only route around jail.
What Still Applies Even If You Avoid Jail
Avoiding jail does not clear the rest of the sentence. License revocation, ignition interlock, insurance requirements, and the financial penalties still apply.
License revocation runs two years in the under-0.15 tier (reducible to one year with the evaluation-plus-monitoring combination described above), 900 days at 0.15 or higher, and three years for a refusal.1Washington State Legislature. Washington Code 46.61.5055 – Alcohol and Drug Violators Penalty Schedule You can apply for an ignition interlock driver’s license immediately, which lets you drive interlock-equipped vehicles during the revocation.4Washington State Legislature. Washington Code 46.20.385 – Ignition Interlock Drivers License
After conviction, you have to file an SR-22 with the Department of Licensing and maintain that high-risk coverage for three consecutive years from the date you become eligible to reinstate. A lapse pauses the clock and gets your license suspended again until you reinstate.5Washington State Department of Licensing. Financial Responsibility (SR-22)
The base fine runs from $500 to $5,000 in the under-0.15 tier and higher at 0.15 or above, with mandatory assessments pushing the actual total well past the base figure.1Washington State Legislature. Washington Code 46.61.5055 – Alcohol and Drug Violators Penalty Schedule A substance use disorder evaluation is mandatory, and the court can order treatment based on the results. Deferred prosecution folds most of that treatment into its own program, but the license and interlock consequences apply either way.
One Boundary Worth Knowing
A second DUI stays classified as a gross misdemeanor. The charge only becomes a class B felony if you have three or more prior offenses within a 15-year window, or a prior conviction for vehicular homicide or vehicular assault involving impairment.6Washington State Legislature. Washington Code 46.61.502 – Driving Under the Influence That 15-year window is longer than the seven-year window used to count priors for the misdemeanor sentencing schedule, so an older prior that doesn’t raise your current mandatory minimum can still count toward the felony threshold on a future charge. That matters for anyone weighing which route to take on a second offense, because a deferred prosecution counts as a prior for both purposes.