East Tennessee Legal Guide
Tennessee DUI Penalties: What You Actually Face for 1st, 2nd, and 3rd Offenses
A straightforward guide to jail time, fines, license revocation, and long-term consequences of a Tennessee DUI conviction — updated for current Tennessee Code Annotated § 55-10-401 and § 55-10-402.
The short answer
A first-offense DUI in Tennessee is a Class A misdemeanor, but it carries mandatory jail time, a one-year license revocation, and fines that can reach $1,500 — plus court costs, DUI school, and years of high-risk insurance. Penalties climb sharply with each additional offense, and a fourth DUI is a felony punishable by state prison.
Because Tennessee law bars plea-bargaining a DUI down to reckless driving, the real fight in most cases is either (1) whether the state can prove the charge or (2) how the sentence gets structured. Both fights start with a careful review of the traffic stop, the field sobriety tests, and the breath or blood evidence.
Tennessee DUI penalties by offense number
Minimum jail time is mandatory in Tennessee — a judge cannot suspend it. Fines and license revocation escalate quickly with each conviction within 10 years.
1st Offense DUI
- Jail time
- Minimum 48 hours (7 days if BAC ≥ 0.20) up to 11 months, 29 days
- Fine range
- $350 – $1,500
- License revocation
- 1-year revocation
- Ignition interlock
- Ignition interlock device required to obtain a restricted license
Also expect:
- Mandatory DUI school
- Community service in many counties
- Court costs and litigation taxes (often several hundred dollars)
- SR-22 high-risk auto insurance for 3+ years
2nd Offense DUI
- Jail time
- Minimum 45 days up to 11 months, 29 days
- Fine range
- $600 – $3,500
- License revocation
- 2-year revocation
- Ignition interlock
- Ignition interlock required during any restricted driving period
Also expect:
- Vehicle may be subject to seizure or forfeiture
- Mandatory alcohol and drug treatment assessment
- Longer probation and monitoring
- Restricted license only after mandatory jail is served
3rd Offense DUI
- Jail time
- Minimum 120 days up to 11 months, 29 days
- Fine range
- $1,100 – $10,000
- License revocation
- 6-year revocation with no restricted license during that period for many drivers
- Ignition interlock
- Required upon eligibility for reinstatement
Also expect:
- Vehicle forfeiture is common
- Substantial probation supervision fees
- Court-ordered treatment
- Significant employment and housing consequences
4th Offense & Beyond (Felony DUI)
- Jail time
- Class E felony — minimum 150 consecutive days, up to 6 years in state prison
- Fine range
- $3,000 – $15,000
- License revocation
- 8-year revocation
- Ignition interlock
- Required on any future reinstatement
Also expect:
- Permanent felony record
- Loss of firearm rights
- Immigration consequences for non-citizens
- Vehicle forfeiture
Factors that make a Tennessee DUI worse
Certain aggravating facts change the sentencing range or turn a misdemeanor into a felony, regardless of whether it is your first arrest.
High BAC (0.20 or above)
Mandatory minimum jail on a 1st offense jumps from 48 hours to 7 consecutive days.
Child endangerment
Driving under the influence with a passenger under 18 adds a separate charge with its own jail time and fines, and can escalate to a felony if the child is injured.
Accident causing injury
Vehicular assault (Class D felony) or vehicular homicide (Class B or C felony) carries years in state prison, not county jail.
Prior DUI within 10 years
Tennessee's 'look-back' window for counting prior offenses is 10 years, so a stale DUI can still push the current case into 2nd or 3rd offense territory.
The hidden long-term costs
The court-imposed fine is only a fraction of what a Tennessee DUI actually costs. Between SR-22 insurance surcharges, ignition interlock fees, DUI school, probation supervision, court costs, and lost income during jail time and license suspension, a first offense commonly ends up costing $5,000 – $10,000 out of pocket over three years.
Employment consequences are just as real. A DUI conviction shows up on background checks for life. It can disqualify you from commercial driving, healthcare licensure, military enlistment, and many professional licenses, and it can complicate travel to Canada.
Those downstream consequences are why the decisions made in the first weeks after an arrest — how the implied-consent hearing is handled, whether to challenge the blood test, whether to negotiate for judicial diversion of a related charge — matter far more than most people realize.
Tennessee DUI questions we hear most
Can a DUI be reduced or dismissed in Tennessee?
Tennessee generally prohibits plea-bargaining a DUI down to reckless driving, but charges can be dismissed or reduced when there are problems with the traffic stop, the field sobriety tests, the breath or blood test, or the chain of custody. An attorney's first job is to review the state's evidence for those weaknesses.
How long does a DUI stay on your record in Tennessee?
A DUI conviction stays on your Tennessee criminal record for life and cannot be expunged. It is counted as a prior offense for 10 years when calculating jail time and fines on any future DUI.
Do I have to go to jail for a first DUI in Tennessee?
Yes. Tennessee law requires a minimum of 48 hours in jail on a 1st offense, and 7 consecutive days if the BAC was 0.20 or higher. Some counties allow that time to be served on weekends or through work release.
What is the ignition interlock rule in Tennessee?
Tennessee requires an ignition interlock device for anyone convicted of DUI who wants a restricted license, and for repeat offenders on reinstatement. The driver pays for installation, monthly monitoring, and calibration.
Will I lose my commercial driver's license (CDL)?
A first DUI, even in a personal vehicle, disqualifies a CDL for one year (three years if hauling hazardous materials). A second DUI results in a lifetime CDL disqualification.
What should I do the day after a DUI arrest?
Write down everything you remember about the stop, save any paperwork the officer gave you, do not post about the arrest on social media, and call a DUI attorney. You typically have very little time to request an implied-consent hearing to protect your driver's license.
Arrested for DUI in East Tennessee?
Get straight answers about your specific charges, court, and options. Free consultation with an experienced Tennessee DUI attorney. Offices in Gatlinburg and Jefferson City.
This guide is general legal information about Tennessee law, not legal advice for your specific case. Reading it does not create an attorney-client relationship.