A third DUI in Tennessee is usually a Class A misdemeanor, but that does not mean the consequences are minor. If convicted, you face at least 120 days in jail, fines ranging from $1,100 to $10,000, and a six-year driver’s license revocation.
Additional penalties or separate felony charges may apply if a child under 18 was in the vehicle or someone suffered serious injury or death. Older DUI convictions may also count because Tennessee uses a linked look-back rule rather than one simple 10-year window.
Last updated: August 2026
Key Takeaways
- A third DUI conviction carries 120 consecutive days to 11 months and 29 days in jail.
- The required fine ranges from $1,100 to $10,000.
- A conviction results in a six-year driver’s license revocation, although an eligible driver may apply for a restricted license.
- Having a child under age 18 in the vehicle adds a mandatory 30 days of incarceration and an additional $1,000 fine.
- A third DUI charge does not guarantee a conviction. The traffic stop, chemical testing, field sobriety tests, prior convictions, and other evidence may be challenged.
Criminal Penalties for a Third DUI Offense
Tennessee generally treats a first, second, or third DUI as a misdemeanor. A fourth DUI is a Class E felony. A fifth is a Class D felony, and a sixth or subsequent DUI is a Class C felony when the statutory requirements are satisfied.
Tennessee does not count prior offenses within a single 10-year window. Under the state’s linked look-back rule:
- The most recent prior DUI violation generally must have occurred less than 10 years before the current violation.
- Once someone qualifies as a multiple offender, an older conviction may count if it occurred less than 10 years before the next violation in the sequence.
- An ordinary DUI violation more than 20 years before the current violation generally cannot be counted.
- Qualifying out-of-state DUI and boating-under-the-influence convictions may count.
- Certain intoxication-related vehicular assault and homicide convictions may count outside the ordinary 10-year limit.
For example, suppose your current DUI occurred in 2026, your most recent prior offense occurred in 2018, and an older offense occurred in 2010. The 2010 offense may still count because each violation occurred within 10 years of the previous one. The exact dates and types of convictions matter, so an attorney should review the records rather than assume an older DUI no longer counts.
Source: Tennessee Code Annotated § 55-10-405.
120 Days to 11 Months and 29 Days in Jail
Under Tennessee Code Annotated § 55-10-402, the sentence for a third DUI ranges from 120 consecutive days to 11 months and 29 days in a county jail or workhouse.
In some cases, the judge may allow part of the sentence to be completed through an approved substance-abuse treatment program. The person must first serve at least 65 days in jail, complete a clinical substance-abuse assessment, and receive court approval.
Residential treatment can provide one day of credit for each day completed. Intensive outpatient treatment can provide one day of credit for every nine hours completed. This option is discretionary, and the program must be completed successfully. Ordinary good-time credits or attendance at a standard DUI school should not be assumed to reduce the mandatory minimum.
Additional Jail Time for a Child Passenger
If a child under age 18 was in the vehicle, a DUI conviction carries an additional mandatory 30 days of incarceration and a $1,000 fine.
If the child suffers serious bodily injury or dies as a proximate result of the DUI, the defendant faces felony consequences.
Probation
Tennessee requires DUI defendants to serve the difference between the time actually served and the maximum sentence on probation. For a third DUI, the overall sentence may extend to 11 months and 29 days.
Probation conditions may include:
- Meetings with a probation officer
- Drug or alcohol testing
- Substance-abuse treatment
- Electronic, GPS, or alcohol monitoring
- Ignition-interlock requirements
- Payment of fines, fees, restitution, and monitoring costs
A person convicted of a third or subsequent DUI generally must pay for any required ignition-interlock or monitoring devices.
Fines: From $1,100 to $10,000
Tennessee sets the fine for a third DUI at $1,100 to $10,000 under T.C.A. § 55-10-403. Additional expenses may include court costs, bond fees, probation fees, treatment, vehicle towing, license reinstatement, and ignition-interlock installation and monitoring.
If a child under age 18 was in the vehicle, the defendant faces an additional $1,000 fine.
Six-Year Driver’s License Revocation
Tennessee revokes a driver’s license for six years after a third DUI conviction under T.C.A. § 55-10-404. The revocation period is six years, not “up to” six years.
Some drivers may apply for a restricted license. Eligibility depends on the driver’s record and the circumstances of the case. A court order, approval from the Tennessee Department of Safety and Homeland Security, and an ignition interlock device may be required under T.C.A. § 55-10-409.
Depending on the license issued, the person may be restricted to specified destinations or permitted to drive only an ignition-interlock-equipped vehicle. Restricted licenses are not available for Class A, B, or C commercial driver licenses.
Additional Penalties and Consequences
- Monitoring: The court may order an ignition-interlock device, transdermal alcohol monitoring, random testing, electronic monitoring, or GPS monitoring.
- Vehicle forfeiture: The vehicle used in a second or subsequent DUI may be subject to seizure and forfeiture when the current conviction occurs in Tennessee, and at least one prior conviction occurred within five years of the current conviction.
- Restitution: A defendant who is financially able to pay may be ordered to compensate someone who suffered physical injury or financial loss because of the offense.
- Collateral consequences: A third DUI may affect employment, professional licenses, insurance rates, housing, and future criminal sentencing.
READ MORE: How much does a DUI cost in Tennessee?
How to Fight a Third DUI Charge
A third DUI carries substantial mandatory penalties, but an arrest doesn't guarantee a conviction. Every DUI case is different. The strongest issue may involve the reason for the traffic stop, the officer’s observations, a breath or blood test, or whether the prior convictions legally count.
Before entering a plea, speak with an experienced DUI defense lawyer about the state’s evidence and your potential sentencing exposure.
Was the Traffic Stop, Detention, or Arrest Legal?
Police need a lawful reason to stop a vehicle, and they generally cannot extend a traffic stop without additional justification. They also need probable cause before making a DUI arrest.
A defense lawyer can review the officer’s report, dispatch records, body-camera footage, and dash-camera footage to determine why the stop began and how the investigation developed. If police unlawfully stopped, detained, searched, or arrested you, the court may suppress evidence obtained as a result.
Miranda warnings are a separate issue. Police generally must provide them before questioning someone who is in custody. If they conduct a custodial interrogation without the required warnings, certain statements may be inadmissible.
Are the Breath or Blood-Test Results Reliable?
A reported breath or blood result may look definitive, but testing errors and scientific limitations can affect its reliability.
Our team includes attorneys with advanced training in the forensic science behind breath and blood testing. Depending on the evidence, we may investigate whether:
- The test was properly administered
- The breath-testing instrument was maintained and calibrated
- A blood sample was properly collected, stored, and transported
- The laboratory followed validated procedures
- The chain of custody was documented
- A medical condition affected the result
- Operator error or outside factors influenced the test
- The reported concentration reflected the defendant’s condition while driving
Tennessee expanded its chemical-testing rules on January 1, 2026. Oral-fluid testing may now be conducted with the driver’s consent, under a search warrant, incident to a lawful arrest for specified intoxication-related offenses, or without consent when exigent circumstances create an exception to the warrant requirement. Lawfully obtained oral-fluid results may be admitted as evidence in court.
A driver who refuses a properly requested test may still face an implied-consent charge even if police later obtain a blood sample through a warrant or another lawful method. The law also permits officers to assist qualified medical personnel in using reasonable force to complete an otherwise lawfully authorized blood draw.
These procedures do not make the results automatically reliable. The defense can still examine whether police had legal authority for the test, whether the sample was properly collected and preserved, and whether the testing method produced a scientifically reliable result.
What Do the Video and Witnesses Show?
Body-camera and dash-camera recordings may show how the stop began, whether instructions were clear, how the defendant spoke and moved, and whether field sobriety tests were conducted properly.
If the video shows that you spoke clearly, followed instructions, and displayed few visible signs of impairment, it may contradict the officer’s written account.
Were the Field Sobriety Tests Reliable?
Field sobriety tests depend partly on officer observations. A medical condition, anxiety, fatigue, poor lighting, uneven pavement, or unclear instructions may explain performance that the officer interpreted as impairment.
The defense can compare the officer’s conclusions with the video and recognized testing procedures.
Can the Prior Convictions Be Used?
The prosecution must establish the qualifying prior convictions needed to sentence the current case as a third DUI.
A defense attorney can investigate:
- Whether the offenses fall within Tennessee’s linked look-back periods
- Whether an out-of-state offense is comparable to a Tennessee DUI
- Whether the records identify the correct person
- Whether the prior conviction was constitutionally valid
- Whether the state has sufficient certified records
- Whether an ordinary DUI falls outside the 20-year limit
A successful challenge to a prior conviction could affect the classification and punishment of the current charge.
Is the Evidence Sufficient?
The prosecution must prove every element beyond a reasonable doubt. A case may weaken when the stop was unlawful, the testing was unreliable, the officer’s testimony conflicts with the video, a medical condition explains the alleged signs of impairment, or the prosecution cannot establish the prior convictions.
Depending on the evidence, the defense may seek suppression, dismissal, acquittal, or a negotiated resolution. No lawyer can guarantee an outcome, but a thorough investigation may uncover problems that are not apparent from the arrest report.
More Frequently Asked Questions
Is a third DUI a felony in Tennessee?
A standard third DUI is generally a Class A misdemeanor. Separate facts, such as serious injury or death, may result in felony charges. A fourth DUI is a Class E felony when the statutory prior-conviction requirements are met.
How many DUIs does it take to become a felony in Tennessee?
A fourth DUI is generally a Class E felony. A fifth is a Class D felony, and a sixth or subsequent DUI is a Class C felony. The prosecution must establish the required qualifying convictions.
What is a Class E felony in Tennessee?
A Class E felony is Tennessee’s lowest felony classification. A fourth DUI carries at least 150 consecutive days of incarceration, a fine from $3,000 to $15,000, and the potential felony sentence authorized for the defendant’s sentencing range.
What does the mandatory minimum mean for a third DUI?
A third DUI carries at least 120 consecutive days of incarceration. In the judge’s discretion, an eligible defendant may enter qualifying substance-abuse treatment after serving at least 65 days and earn statutory sentence-reduction credits for successful completion.
Can a third DUI receive probation?
Yes, but probation does not eliminate the requirement for incarceration. After confinement, the defendant generally serves the remaining portion of the 11-month-and-29-day sentence on probation.
Can I get a restricted license after a third DUI?
Some drivers may apply for a restricted license during the six-year revocation. Eligibility depends on the driving record and case circumstances. A court order, department approval, and an ignition-interlock device may be required.
Does a .15% BAC add seven days to a third DUI sentence?
No. Tennessee’s seven-day minimum for a BAC of .15% or higher applies to a first DUI instead of the ordinary 48-hour minimum. It is not a separate seven-day enhancement for a third DUI.
What happens if a child was in the vehicle?
A DUI committed with a child under age 18 in the vehicle carries an additional mandatory 30 days of incarceration and a $1,000 fine. If the child suffers serious bodily injury or dies as a proximate result of the DUI, the defendant faces felony consequences.
Can an older DUI count toward a third offense?
Yes. Tennessee uses a linked look-back rule. An older DUI may count if each subsequent violation occurred less than 10 years after the immediately preceding violation. An ordinary DUI violation more than 20 years before the current violation generally cannot count, although exceptions apply to certain serious intoxication-related offenses.
