Second and Third DUI in Idaho: What Repeat Offenders Face

Idaho treats repeat DUIs much more harshly than a first offense. If you are facing a second or third DUI, the penalties climb fast, and a third within ten years can cross into felony territory. Here is what repeat offenders are up against.

Second DUI in Idaho

A second DUI within ten years is still usually a misdemeanor under Idaho Code § 18-8005(5), but the penalties increase compared to a first offense. You can be looking at:

• More mandatory jail time
• A longer license suspension
• Higher fines
• A required ignition interlock device

The ten-year window matters. Prior DUIs within that period count toward making the current charge a repeat offense.

Third DUI in Idaho

A third DUI within ten years is where things get much more serious. Under Idaho Code § 18-8005(6), it can be charged as a felony, which means:

• The possibility of prison time
• A much longer license suspension
• The lasting consequences of a felony record

A felony DUI conviction affects far more than your driving. It can impact your rights, your job prospects, and your future in ways a misdemeanor does not. For more on that line, see our post on is a DUI a felony in Idaho.

Why prior offenses change the strategy

With a repeat DUI, the defense often looks closely at the prior convictions, the timeline, and whether each step in the current case was handled properly. The stakes are high enough that small details can matter a great deal. The earlier a lawyer reviews the case, the better.

Other felony repeat-DUI paths

A second excessive DUI (BAC 0.20 or higher) within five years can also be charged as a felony under Idaho Code § 18-8004C, separate from the third-offense rule.

Do not face a repeat DUI alone

Because repeat DUIs carry mandatory penalties and the risk of a felony, this is not the kind of charge to handle without help. Browning Law defends repeat DUI charges in Idaho Falls and across Bonneville County.

Learn more on our DUI lawyer in Idaho Falls page, or call (208) 542-2700 for a free consultation.

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This article provides general information about Idaho law as of 2026. It is not legal advice for any specific situation. Idaho Code §§ 18-8002, 18-8004, 18-8004C, 18-8005, and 18-8006 are referenced where applicable. Consult an attorney about your individual circumstances.