Kentucky DUI Laws and Penalties (2026)

A complete guide to DUI and DWI laws in Kentucky, including penalties for first and repeat offenses, BAC limits, license suspension rules, and when a DUI becomes a felony.

Important: This information is for general educational purposes only and is not legal advice. DUI laws in Kentucky can change. If you are facing a DUI charge, consult a licensed Kentucky DUI attorney immediately.

Kentucky DUI At a Glance

BAC Limit0.08%
Felony at4th offense
1st Offense MinVaries

First Offense DUI in Kentucky

48 hours–30 days jail, $200–$500 fine, 30–120 day suspension

DUI school required for all offenders

Second Offense DUI in Kentucky

7 days–6 months jail, $350–$500 fine, 12–18 month suspension

When Does a DUI Become a Felony in Kentucky?

In Kentucky, a DUI typically becomes a felony charge at the 4th offense. Additional circumstances that can elevate a DUI to a felony include:

  • Causing injury or death to another person while driving impaired
  • Having a child passenger in the vehicle
  • Having an extremely high BAC (typically 0.15% or 0.16%+)
  • Driving on a suspended or revoked license due to a prior DUI

Kentucky DUI BAC Limits

Driver TypeBAC Limit
Standard (21+)0.08%
Under 210.00%–0.02% (zero tolerance)
Commercial Driver (CDL)0.04%

Refusing a Breathalyzer in Kentucky

Kentucky, like all U.S. states, has an implied consent law. By driving on Kentucky roads, you implicitly consent to chemical testing (breath, blood, or urine) if lawfully arrested for DUI. Refusing a test will typically result in automatic license suspension, separate from any DUI conviction, and the refusal can be used against you in court.

DUI vs. DWI in Kentucky

Different states use different terminology. Kentucky uses DUI (Driving Under the Influence) as its primary statute, though both alcohol and drug impairment can result in charges.

Finding a DUI Lawyer in Kentucky

If you are facing a DUI charge in Kentucky, it is strongly recommended to consult with a qualified DUI defense attorney as soon as possible. An attorney can:

  • Review the circumstances of your arrest for procedural errors
  • Challenge the accuracy of BAC testing equipment
  • Negotiate for reduced charges or alternative sentencing
  • Represent you at DMV hearings to contest license suspension

Other Kentucky Traffic Laws