If you’ve already had a conviction, you know what a DUI arrest feels like. What you’re trying to figure out is what your history actually means — for this situation, right now.

Maybe something happened. Maybe you’re just doing the math before any conversation with anyone. Either way, the question you’re really asking isn’t just how long does a DUI stay on your record in California. It’s whether your prior DUI still counts, whether it changes what you’re facing, and how much worse this gets if the answer is yes.

Most articles answer this question the easy way: ten years on your DMV record, permanent on your criminal record. That’s true, but it’s incomplete in a way that matters.

Here’s what rarely gets explained clearly: California maintains three separate records tied to a DUI conviction, and they follow three completely different timelines. The one that determines your criminal exposure — how a new arrest gets charged and what penalties you’re facing — operates on its own rules. And those rules have details that catch people off guard, including the fact that an expunged DUI can still count against you.

This article explains exactly how California’s 10-year DUI lookback window works, what it counts, how penalties escalate at each step inside it, and when that window becomes the line between a misdemeanor and a felony. No scare tactics. No vague answers. Just the clearest picture available of where you actually stand.

The Real Question Isn’t How Long — It’s Whether Your Prior Still Counts

Most people searching “how long does a DUI stay on your record in California” are not actually worried about a background check. They’re worried about something more specific and more urgent: if something happens again, does the old one make this worse?

That’s the real question. And the answer depends entirely on which record you’re asking about.

Three Records, Three Timelines — and Most People Only Know One

A DUI conviction in California doesn’t create one record. It creates three, and they work completely differently:

  • Your DMV driving record keeps the DUI for 10 years from the date of your arrest. This is the record insurance companies and the DMV use to evaluate your driving history.
  • Your criminal record keeps the DUI permanently, unless you take legal action to have it expunged. This is what shows up on most background checks for employment and housing.
  • The sentencing enhancement window — the California DUI 10-year lookback — is the one that determines how a new arrest gets charged and what mandatory penalties apply. This is the record that changes what you’re actually facing if you’re arrested again.

Most people conflate all three. They assume that if enough time has passed, or if they completed diversion, or if they got an expungement, the prior is behind them. For background check purposes, expungement helps. For criminal exposure purposes, it changes almost nothing.

The Expert Insight Most People Miss

Here is what rarely gets explained: expungement does not remove a prior DUI from the sentencing enhancement window.

If your DUI was expunged but the arrest date falls within 10 years of a new arrest, California law still counts it as a prior. The court treats it as prior conduct for sentencing purposes. The expungement affects how the conviction appears on certain background checks. It does not affect how a prosecutor counts your history.

That distinction matters enormously for anyone who went through diversion, completed probation, and assumed their record was effectively clean. It isn’t — not for purposes of a new DUI arrest.

Understanding the DUI washout period in California — the point at which a prior actually falls outside the window and stops triggering mandatory enhancements — is what this article is built around. Because that number, and where your prior falls relative to it, determines almost everything about what you’re facing right now.

How California Actually Counts Your Prior DUIs — And What Most People Get Wrong

The mechanics of California’s 10-year DUI lookback are more specific than most people realize. And the details that get glossed over are exactly the ones that catch people off guard.

The Clock Runs From Arrest Date — Not Conviction Date

This is the timing factor that consistently surprises people most. California calculates the 10-year window from the date of arrest on the prior offense to the date of arrest on the new offense. Not from when you were convicted. Not from when you finished probation. Not from when the case closed.

That distinction matters more than it sounds. If your prior DUI arrest was in March 2016 and you’re arrested again in February 2026, that prior is still inside the window — even if your conviction didn’t happen until late 2016, even if probation ended years ago. The arrest date is what the clock uses.

What California Counts Inside the Lookback Window

This is where people make assumptions that turn out to be wrong. Under California law, the following all count as prior offenses within the 10-year enhancement window:

  • Wet reckless convictions (Vehicle Code 23103) — Many people take a wet reckless plea specifically because they believe it won’t follow them the same way a DUI does. For sentencing enhancement purposes, it counts the same as a DUI conviction.
  • Out-of-state DUI convictions — If the offense in another state would have qualified as a DUI under California law, it counts. Someone who moved to California after a DUI conviction elsewhere may be surprised to learn their out-of-state record travels with them.
  • Expunged DUI convictions — As covered in the previous section, expungement changes how a conviction appears on certain background checks. It does not remove it from the sentencing enhancement window under California law.

What May Not Count

Not every out-of-state conviction is automatically included. If the prior offense occurred in a state with a substantially different legal standard — for example, a conviction based on a BAC threshold that would not have been illegal under California law — it may be challengeable. This is one area where the specifics of a prior record can actually matter to the outcome.

According to California Legislative Information, Vehicle Code 23540 specifically governs second DUI offenses within 10 years and defines what qualifies as a prior conviction for enhancement purposes — including wet reckless convictions.

The Washout: When a Prior Finally Stops Counting

Once a prior arrest date falls more than 10 years before a new arrest date, it is considered “washed out.” It no longer triggers mandatory sentencing enhancements. The court is still aware it exists, and a judge may consider it in other ways — but it cannot be used to automatically increase penalties or change the offense tier.

For someone whose prior is approaching that 10-year mark, the exact date matters. A difference of weeks can determine whether a new arrest is treated as a first offense or a second.

What the 10-Year DUI Lookback Actually Does to Your Penalties

Understanding how long a DUI stays on your record in California is one thing. Understanding what that record does to your penalties at each step inside the window is another — and this is where most people underestimate their situation.

Inside the California DUI 10-year lookback window, penalties don’t just get incrementally worse. They escalate in ways that change the entire nature of the case at each tier.

Second DUI Within 10 Years

A second DUI within 10 years is still a misdemeanor in California. But it is treated very differently from a first offense by prosecutors, judges, and the DMV.

What changes:

  • Mandatory minimum 96 hours in jail, up to 1 year
  • Fines starting at $390, but with assessments typically reaching $2,000 or more
  • 2-year license suspension
  • 18-month DUI school (SB-38 program) — compared to 3 months for a first offense
  • 3 to 5 years of probation
  • Ignition interlock device requirement

For someone working an hourly job or managing a household on a single income, the financial hit alone is significant. Add 18 months of mandatory DUI school, a 2-year license suspension, and the ignition interlock requirement, and the disruption to daily life is substantial.

For more on how second offense penalties stack up and what they mean for working adults and families, see Second DUI in California: How Penalties Multiply Fast.

Third DUI Within 10 Years

By the third offense, the court’s approach shifts noticeably. Prosecutors treat a pattern of repeat offenses with far less flexibility.

What changes:

  • Mandatory minimum 120 days in jail, up to 1 year
  • Fines and assessments that can exceed $3,000
  • 3-year license revocation
  • 30-month DUI school
  • 5 years of probation
  • Ignition interlock device

A 3-year revocation is not a suspension with restricted driving options. It is a revocation — a full loss of driving privileges for three years. For anyone whose job, childcare, or daily functioning depends on being able to drive, that consequence alone can destabilize a household.

Fourth DUI Within 10 Years — The Felony Line

This is where the California 10-year DUI rule reaches its most serious consequence. A fourth DUI within 10 years triggers an automatic felony charge under Vehicle Code 23550.

What changes:

  • State prison time: 16 months to 3 years
  • 4-year license revocation
  • Permanent felony record
  • Loss of gun rights
  • Professional license exposure — boards for nursing, contracting, teaching, and others are required to review felony convictions
  • Immigration consequences for non-citizens — repeat DUI convictions can affect status, applications, and renewals.

The gap between a third and fourth offense is not a difference in degree. It is a crossing into a fundamentally different legal category with consequences that follow a person permanently.

The Emotional and Long-Term Weight

Beyond the legal and financial consequences, there is the personal toll. The conversation with a partner or parent. The fear of losing a job before the case is even resolved. The shame of facing this again.

For someone who completed probation, finished DUI school, and tried to move forward — only to find themselves back in this situation — the emotional weight of a repeat arrest often hits harder than the first time. The stakes feel more real because experience has made them real.

And the long-term consequences compound. A felony record doesn’t just mean prison time. It means barriers to housing, employment, and professional licensing that persist for years after the sentence ends.

How to Read Your Own Situation Using the California DUI 10-Year Lookback

Before any conversation with an attorney, before any decisions about what to do next, there is one thing worth doing on your own: understanding exactly where your prior falls relative to the 10-year window and what that means for your current exposure.

This is not legal advice. It is a personal audit — a way to get clarity on the facts of your own situation so that when you do have a conversation, you are not starting from zero.

The Six Questions That Define Your Exposure with a Repeat DUI Offense

Question 1: When was your prior DUI arrest — not your conviction?

The California DUI 10-year lookback runs from arrest date to arrest date. Pull up the actual date of the prior arrest, not the court date, not the conviction date, not when probation ended. That is the number that matters.

Question 2: What was the prior charge — DUI, wet reckless, or something else?

A wet reckless plea under Vehicle Code 23103 counts as a prior for sentencing enhancement purposes. Many people take that plea specifically because it sounds less serious. For lookback purposes, it is treated the same as a DUI conviction.

Question 3: Was the prior conviction from another state?

Most out-of-state DUI convictions count if the offense would have qualified as a DUI under California law. If you moved to California after a prior conviction elsewhere, that history likely travels with you.

Question 4: Was the prior expunged?

Expungement does not remove a prior from the sentencing enhancement window. If the arrest date falls within 10 years of a new arrest, it still counts as a prior for charging and penalty purposes.

Question 5: How many priors fall within the 10-year window?

This is the number that determines your tier:

  • One prior within the window: second offense exposure
  • Two priors within the window: third offense exposure
  • Three priors within the window: fourth offense — automatic felony territory

Question 6: Are there aggravating factors in the new arrest?

A high BAC, an accident, a child passenger, or a suspended license at the time of arrest each add exposure on top of the lookback tier. These factors interact with your prior history to influence how aggressively the case is pursued.

What to Avoid

Don’t assume time has handled it. Calculate the actual arrest dates before concluding a prior is outside the window. Weeks matter.

Don’t assume expungement cleared the lookback. It didn’t. Treat an expunged prior as still counting until you have confirmed the arrest date falls outside the 10-year window.

Don’t ignore the DMV timeline. If a new arrest has occurred, the DMV clock is already running. In California, you have 10 days from the date of arrest to request a hearing to contest your license suspension — independent of whatever is happening in criminal court. Missing that deadline has consequences that cannot be undone.

If you are also currently on probation from a prior DUI, the situation is more layered than the lookback window alone. See DUI Probation Violations: Why the Second Arrest Is So Dangerous for a breakdown of how a new arrest interacts with existing probation.

The California DMV’s DUI information page provides direct guidance on how license actions work after a DUI arrest, including the hearing request process and reinstatement timelines by offense number.

What Changes When You Understand the Lookback Window Before Your First Conversation

Knowing how long a DUI stays on your record in California is the starting point. What you do with that knowledge — and when — is what separates outcomes that are manageable from outcomes that compound into something much harder to recover from.

Two people can have identical prior records and face the same new arrest. The one who understands the California DUI 10-year lookback window before their first conversation is in a meaningfully different position than the one who doesn’t.

What a Strong Outcome Looks Like for a Repeat DUI Offense

A strong outcome starts with clarity. Not optimism — clarity. Knowing exactly which tier you’re in, whether your prior counts, and what the realistic range of consequences looks like before anyone else defines it for you.

In practical terms, a strong outcome for someone with a prior DUI looks like this:

  • The DMV hearing was requested within 10 days of arrest — license consequences are being contested rather than accepted by default
  • The prior record was reviewed before the first attorney conversation — no surprises about whether a wet reckless or out-of-state conviction counts
  • The correct offense tier was identified early — second, third, or felony exposure — so the legal strategy matched the actual situation from the start
  • Mandatory minimums were understood going in — no shock at the 18-month DUI school requirement, the 2-year suspension, or the ignition interlock
  • Where treatment alternatives exist, they were explored early enough to be viable options the court would consider

Strong outcomes are not always about escaping consequences. They are about facing the right consequences — the ones that actually apply — rather than worse ones that result from missed deadlines, wrong assumptions, or decisions made without accurate information.

What a Weak Outcome Looks Like

Weak outcomes follow a predictable pattern. The prior was assumed to be outside the window — it wasn’t. The wet reckless wasn’t considered — it counted. The DMV deadline passed without a hearing request. The offense tier was misread and the legal approach didn’t match the actual exposure.

The financial cost of a weak outcome goes beyond fines. Extended license revocation means transportation costs, missed work, and disrupted income for months or years. A felony conviction that could have been avoided means barriers to employment and housing that persist long after the case ends.

Why Timing Is the Deciding Factor

The window for protecting your options is not unlimited. According to research published by the Bureau of Justice Statistics, repeat DUI offenders face significantly higher conviction rates and longer sentences than first-time offenders — a pattern that reflects how the system is designed to treat escalating offense history.

That design is exactly why early action matters. The decisions made in the first days after an arrest — the DMV hearing request, the honest audit of prior record, the understanding of which tier applies — are the decisions that shape everything that follows.

Knowing where you stand inside the California 10-year DUI rule is not just useful background information. It is the foundation of every decision that comes next.

Frequently Asked Questions About California’s DUI 10 Year Lookback Window

These are the questions people ask when they’re quietly doing the math before any conversation with an attorney — trying to understand what their history actually means right now. They come up especially when a prior DUI is involved and the stakes of a new situation are still coming into focus.

How long does a DUI stay on your record in California?

A DUI in California stays on your DMV driving record for 10 years from the date of arrest, remains on your criminal record permanently, and counts as a prior offense for sentencing purposes for 10 years from the arrest date.

These are three separate records with three different implications. The DMV record affects your insurance and driving privileges. The criminal record affects background checks. The 10-year sentencing window determines how a new arrest is charged and which mandatory penalties apply.

Does an expunged DUI still count as a prior in California?

An expunged DUI conviction still counts as a prior offense within California’s 10-year lookback window for sentencing enhancement purposes.

Expungement changes how the conviction appears on certain background checks and may help with employment applications. It does not remove the prior from the window that prosecutors use when charging a new DUI offense. This surprises many people who completed diversion or probation and assumed their record was effectively clean for all purposes.

What is the DUI washout period in California?

The DUI washout period in California is the point at which a prior DUI arrest falls more than 10 years before a new arrest date, making it ineligible to trigger mandatory sentencing enhancements.

Once a prior DUI washes out, it cannot be used to automatically elevate penalties or change the offense tier. However, the court is aware of the prior DUI conviction, and a judge may consider it in other ways. The exact dates matter — a difference of weeks can determine whether a new arrest is treated as a first offense or a second.

Does a wet reckless count as a prior DUI in California?

A wet reckless conviction under Vehicle Code 23103 counts as a prior DUI offense within California’s 10-year lookback window.

Many people accept a wet reckless plea specifically because it sounds less serious than a DUI. For sentencing enhancement purposes, it carries the same weight. If a new DUI arrest occurs within 10 years of the wet reckless arrest date, the prior will be counted, and penalties will escalate accordingly.

Does an out-of-state DUI count toward California’s 10-year lookback?

An out-of-state DUI conviction counts toward California’s 10-year lookback if the offense would have qualified as a DUI under California law.

People who moved to California after a prior conviction in another state often assume their out-of-state record doesn’t follow them. In most cases it does. The exception is when the prior state’s law differed significantly — for example, a conviction based on a BAC threshold that would not have been illegal in California — which may be challengeable.

How many DUIs before it becomes a felony in California?

A fourth DUI conviction within 10 years in California triggers an automatic felony charge under Vehicle Code 23550.

The first three offenses within the window are typically charged as misdemeanors (unless there are aggravating factors), though penalties increase significantly at each step. The fourth offense crosses into felony territory regardless of whether there was an injury or other aggravating factor. That means state prison time, a permanent felony record, and consequences that affect employment, housing, and professional licensing long after the sentence ends.

Can a prior DUI outside the 10-year window still affect my case?

A prior DUI that has washed out of the 10-year window cannot be used to trigger mandatory sentencing enhancements, but the court is still aware it exists.

Judges have discretion in sentencing, and a prior that falls just outside the window may still influence how a case is approached at the discretion level. It will not change the mandatory minimums, but it can affect how seriously the case is treated overall. Assuming a washed-out prior is completely invisible is not accurate.

What happens to my license after a second DUI in California?

A second DUI conviction in California results in a 2-year license suspension imposed by the court, along with a separate administrative action by the DMV.

These two processes run on different timelines and need to be addressed separately. Requesting a DMV hearing within 10 days of the arrest date is the only way to contest the administrative suspension. Missing that deadline results in an automatic suspension regardless of what happens in criminal court.

How does the 10-year DUI rule affect immigration status in California?

Repeat DUI convictions within California’s 10-year lookback window can increase immigration risk, particularly when convictions accumulate or aggravating factors are present.

A single misdemeanor DUI is not automatically deportable, but repeat offenses create a pattern that immigration authorities may weigh differently during applications, renewals, or discretionary reviews. The concern grows with each conviction inside the window. For households with immigration concerns, understanding how repeat DUI history interacts with immigration status is a separate and important conversation.

What is the difference between a DUI on your driving record and your criminal record in California?

Your California DMV driving record and your criminal record are separate documents maintained by different agencies, and they serve completely different purposes.

The DMV record tracks your driving history for 10 years and is used by the DMV and insurance companies to evaluate driving privileges and rates. The criminal record is maintained by law enforcement and the courts, appears on most background checks, and remains permanently unless expunged. Understanding which record is being accessed — and by whom — is essential for anyone managing the long-term consequences of a DUI conviction.

The DUI 10-Year Window Isn’t Just a Legal Detail — It’s the Number That Defines Your Exposure

The question of how long a DUI stays on your record in California doesn’t have one answer. It has three, and the one that matters most for anyone with a prior arrest is the sentencing enhancement window — the 10-year lookback that determines how a new arrest gets charged, what mandatory penalties apply, and whether the situation crosses from misdemeanor territory into felony exposure.

Most people searching this question are not looking for abstract legal information. They’re trying to understand where they actually stand before any conversation with anyone. That instinct is the right one.

What this article has laid out is straightforward: the window runs from arrest date to arrest date; expungement doesn’t remove a prior from it; wet reckless convictions count; and the difference between a second and fourth offense within that window is the difference between a misdemeanor and state prison.

Staying in uncertainty doesn’t protect you. It just delays the point at which you understand what you’re actually facing — and shortens the window for doing something about it.

If you have a prior DUI and something has happened, or you’re just trying to understand where your history puts you, getting a clear and honest answer about what your record actually means is the most useful thing you can do right now. That conversation is confidential, and it starts here.