What is the “Look-Back” Period for Prior DUIs in Washington?
Is your past history really in the past? In Washington, the calendar matters just as much as the conviction. Here is how the state calculates your “prior” offenses.
If you are facing a DUI charge in Washington, the first thing the prosecutor will do is look at your history. They aren’t just looking for convictions; they are counting days on a calendar.
Washington State uses a strict “Look-Back” period to determine if you should be charged as a first-time offender or a repeat offender. The difference is massive: a first offense might mean one day in jail, while a second offense within the look-back period requires a mandatory minimum of 30 to 45 days in jail and a years-long license revocation.
Here is the deep dive on how Washington calculates this window, what crimes count as “priors,” and the critical difference between the 7-year and 10-year rules.
The Standard: The 7-Year Rule (Gross Misdemeanor)
For most DUI cases, the look-back period is seven years.
Under RCW 46.61.5055, if you are arrested for a DUI and you have a “prior offense” within the last seven years, you face mandatory enhanced penalties.
- 1st Offense: No priors in 7 years.
- 2nd Offense: One prior in 7 years.
- 3rd Offense: Two priors in 7 years.
The “Arrest-to-Arrest” Calculation
This is the most common misconception clients have. The seven-year window is not calculated from conviction date to conviction date.
It is calculated from arrest date to arrest date.
If you were arrested for a DUI on January 1, 2018, and arrested again on December 31, 2024, that counts as a prior offense within seven years—even if you weren’t actually convicted of the first one until late 2019. The clock starts ticking the moment the handcuffs go on, not when the judge bangs the gavel.
The Serious: The 10-Year Rule (Felony DUI)
While seven years is the standard for misdemeanors, Washington law extends the window to ten years for Felony DUIs.
Under RCW 46.61.502(6), a DUI becomes a Class B or Class C Felony if you have three or more prior offenses within ten years.
- Felony Consequence: Unlike a misdemeanor where you serve time in a county jail, a Felony DUI sends you to state prison under the custody of the Department of Corrections (DOC).
- Permanent Look-Back: If you have ever been convicted of a Felony DUI, Vehicular Assault, or Vehicular Homicide involving alcohol, the 10-year limit disappears. Any future DUI is automatically charged as a felony, forever.
What Counts as a “Prior Offense”?
It is not just a DUI conviction that counts against you. Washington’s definition of a “prior” is extremely broad.
Under RCW 46.61.5055(14), all of the following count as a “strike” on your record if they occurred within the look-back period:
- DUI or Physical Control: Convictions for driving or being in physical control of a vehicle while under the influence.
- Amended Charges: If you were originally charged with a DUI but it was reduced to Reckless Driving or Negligent Driving in the 1st Degree, that reduced charge still counts as a prior DUI for sentencing purposes.
- Deferred Prosecution: Even if your case was dismissed after you successfully completed a 5-year Deferred Prosecution program, it still counts as a prior offense for life (one per lifetime).
- Operating Other Vehicles: Convictions for boating under the influence (BUI) or operating an aircraft/snowmobile under the influence.
Do Out-of-State DUIs Count?
Yes. If you have a DUI conviction from Oregon, California, or any other state, Washington courts will count it as a prior offense if the other state’s law is “comparable” to Washington’s.
Why You Need an Attorney Immediately
The math of the “Look-Back” period can be the difference between a slap on the wrist and a prison sentence.
Prosecutors will aggressively search your history to find any reason to enhance your penalties. At The Law Offices of Barbara A. Bowden, we meticulously review your record. We verify if your priors actually fall within the statutory window and challenge the “comparability” of out-of-state convictions to protect you from unfair enhancements.
Don’t let the calendar dictate your future. Contact us today for a consultation.