A DUI is a misdemeanor in most first-offense situations and becomes a felony when specific aggravating factors are present. Whether a DUI is a felony or a misdemeanor turns on a short list of triggers: prior DUI convictions within your state’s lookback window, an accident that seriously injures or kills someone, a child in the vehicle, a very high blood alcohol concentration combined with other factors, or driving while your license is already suspended for a prior DUI. Without any of those, a first DUI is almost always charged as a misdemeanor. With any of them, the charge can jump to a felony, and the consequences change from county jail time measured in months to state prison time measured in years, plus the lifetime baggage that follows any felony conviction.
When a DUI Stays a Misdemeanor
A first-offense DUI with no injuries, no child passengers, and a BAC at or just above the legal limit is a misdemeanor in nearly every state. The legal BAC threshold is 0.08% in 49 states and the District of Columbia; Utah sets its limit at 0.05%.1NHTSA. Lower BAC Limits The same laws apply to impairment from prescription medications, marijuana, opioids, methamphetamines, and other impairing substances. Impairment is impairment whether the substance is legal or illegal.2NHTSA. Drug-Impaired Driving
Misdemeanor doesn’t mean minor. Most jurisdictions cap first-offense jail time at six months, and some allow up to a year. A conviction usually brings fines, a license suspension, mandatory alcohol education, community service, an ignition interlock requirement, and probation under which any measurable BAC behind the wheel can trigger a violation. The point here is only that the charge stays within misdemeanor territory. What pushes it out is a specific set of circumstances.
What Turns a DUI Into a Felony
Several circumstances move a DUI from misdemeanor range into felony range. They aren’t mutually exclusive, and more than one can apply to the same arrest, stacking the severity of the case.
Prior DUI Convictions
The most common path to a felony DUI is accumulating prior convictions. In most states, a third or fourth DUI within a defined lookback window is automatically a felony. The lookback period varies: some states use five years, others seven or ten, and a handful count every prior DUI regardless of when it happened. In states with lifetime lookback, a DUI from 20 years ago still counts when prosecutors decide how to charge a new offense.
The practical effect is that your state’s window matters enormously. In a state with a 10-year lookback and two priors eight and nine years back, a new arrest is a felony. In a state with a five-year lookback, the same priors wouldn’t count. Don’t assume an old conviction has aged out without checking.
Serious Injury or Death
When impaired driving causes an accident that seriously injures or kills someone, the charge almost always becomes a felony. These cases are prosecuted under labels like vehicular assault, DUI causing serious bodily injury, vehicular homicide, or DUI manslaughter, depending on the state and the outcome. Prison sentences of several years are common in injury cases, and vehicular homicide charges can carry sentences comparable to other forms of manslaughter.
A Child in the Vehicle
Driving impaired with a minor in the car can elevate the charge to a felony even on a first offense. Some states treat this as a standalone felony DUI, while others add a separate child endangerment charge on top of the DUI. The age threshold varies by state. The direction is consistent: combining impaired driving with the responsibility of transporting a child draws some of the harshest treatment in DUI law.
Very High BAC
A growing number of states impose enhanced penalties or elevated charges when a driver’s BAC is well above 0.08%. Thresholds for “aggravated” or “extreme” DUI charges vary, with some states drawing the line at 0.15% and others at 0.16% or 0.20%. On a first offense, a high BAC usually triggers stiffer misdemeanor penalties rather than an automatic felony. Combined with repeat offenses, though, a high BAC can push the charge to felony level, and a few states treat a very high BAC on a subsequent offense as a felony on its own.
Driving on a Suspended License
Being arrested for DUI while your license is already suspended or revoked from a prior DUI conviction is another path to a felony charge. The combination of active impairment and demonstrated disregard for a court-ordered suspension is treated as qualitatively different from a standard DUI.
How Misdemeanor and Felony Penalties Compare
The classification determines how much of your life the conviction disrupts. The gap is wide.
Misdemeanor Penalties
A first-offense misdemeanor DUI typically carries:
- Jail time, often with a mandatory minimum of one or two days and a maximum around six months, though some states allow up to a year.
- Court-imposed fines plus surcharges, commonly totaling $1,000 to $3,000 for a first offense.
- License suspension in the range of 90 days to one year on the administrative side, with possible overlap from the criminal sentence.
- Probation of one to three years, with conditions including zero-tolerance BAC requirements, alcohol education, community service, random testing, and sometimes ankle monitoring.
- An ignition interlock device, required in a growing number of states even for first offenses, with installation costs around $70 to $150 and monthly lease fees of $60 to $90.
Each subsequent misdemeanor DUI brings longer jail time, higher fines, extended suspensions, and longer interlock requirements.
Felony Penalties
Felony DUI sentencing is in a different category:
- Prison time served in state prison rather than county jail, commonly ranging from one to several years. DUI vehicular homicide can carry five to fifteen years or more, depending on the state.
- Fines substantially higher than misdemeanor fines, often $5,000 to $10,000 or more before surcharges.
- License revocation measured in years rather than months. Some states permanently revoke driving privileges after enough felony DUI convictions.
- A permanent felony criminal record, which carries consequences long past the end of the sentence.
What a Felony Conviction Costs You Later
A felony DUI reaches far past the sentence. These collateral consequences are the real reason the misdemeanor-versus-felony line matters.
Firearms
Federal law prohibits anyone convicted of a crime punishable by more than one year of imprisonment from possessing firearms or ammunition.3Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts A felony DUI conviction crosses that threshold and triggers a federal gun ban that lasts until rights are restored through a pardon, expungement, or a state-specific process. A misdemeanor DUI doesn’t trigger this federal prohibition.
Voting Rights
The impact on voting rights depends on where you live. Two states never revoke voting rights, even during incarceration. Most states restore voting rights automatically once you complete your sentence, including probation and parole. A smaller number require a separate application or governor’s action, and a few allow permanent disenfranchisement for certain felonies. Check your state’s rules, because the process varies widely.
Commercial Driver’s License
For anyone who drives professionally, a DUI conviction is career-threatening. Federal regulations require a minimum one-year disqualification from operating a commercial motor vehicle after a first DUI conviction, regardless of whether you were driving a commercial vehicle at the time. Hauling hazardous materials bumps the disqualification to three years. A second DUI offense in a separate incident results in a lifetime CDL disqualification.4eCFR. 49 CFR 383.51 – Disqualification of Drivers Some states allow applications for reinstatement after 10 years, but approval isn’t guaranteed, and many carriers won’t hire a driver with a DUI on record regardless.
Professional Licenses
Licensing boards for healthcare workers, teachers, attorneys, pilots, and many other regulated occupations review criminal convictions during licensing and renewal. A felony DUI can trigger disciplinary proceedings including license suspension, mandatory substance abuse treatment, added scrutiny at renewal, and in serious cases revocation. Most boards require self-reporting of criminal convictions, and failure to disclose can be treated as a separate offense of dishonesty. Even a misdemeanor DUI can cause problems, but a felony makes disciplinary action far more likely.
International Travel
A DUI conviction can make you inadmissible to certain countries. Canada is the most prominent example. Under Canadian immigration law, a DUI conviction, even a misdemeanor, may make you inadmissible on grounds of serious criminality. You can apply for a temporary resident permit for a compelling reason to enter, but it isn’t guaranteed and costs money. Once at least five years have passed since the end of your sentence, including probation, you can apply for criminal rehabilitation, which is a permanent fix.5Government of Canada. Canadian Immigration and Citizenship Inadmissibility – Convicted of Driving While Impaired Border agents retain discretion to refuse entry even with a valid permit.
Immigration Status
For noncitizens, a DUI adds a layer of immigration risk. The U.S. Supreme Court held in Leocal v. Ashcroft (2004) that a standard DUI conviction is not an “aggravated felony” for immigration purposes, so it shouldn’t by itself trigger automatic deportation. A DUI combined with other factors, though, such as additional criminal history, a very high BAC, or causing injury, can still be used as evidence of bad moral character or as grounds for removal. Noncitizens facing any DUI charge should consult an immigration attorney before entering a plea.
Getting a DUI Off Your Record
Expungement and record-sealing rules for DUI convictions vary dramatically by state. Some states allow expungement of misdemeanor DUI convictions after a waiting period and a clean record. Others treat DUI as non-expungeable entirely. Felony DUI convictions are harder to clear almost everywhere, and many states prohibit expunging any felony.
Even where expungement is allowed, the process typically requires several years of clean record, payment of fees, a court petition, and sometimes a hearing. An expunged conviction is generally hidden from standard background checks, but it may still be visible to law enforcement and certain government agencies. In states that don’t allow expungement, a DUI remains on your criminal record permanently and shows up on background checks for employment, housing, and licensing indefinitely.
One distinction matters: even in states that allow the criminal conviction to be expunged, the DMV record of the offense often remains. A future DUI arrest can still count the expunged conviction as a prior offense for charging purposes, which means an old misdemeanor can still help push a future charge up to felony range.