A second DUI is a very different case from a first, and in Florida the timing is what drives it. If your second DUI falls within five years of a prior DUI conviction, the law imposes mandatory penalties that a judge cannot simply waive, including required jail time and a long license revocation. Understanding what the five-year window triggers is the first step to knowing what you are actually facing.
Why the Five-Year Window Is the Whole Ballgame
Florida treats a second DUI differently depending on how much time has passed since the prior conviction. The critical line is five years. If the second DUI occurs within five years of a prior DUI conviction, a set of mandatory minimum penalties kicks in. If it falls outside that window, the case is still serious, but the required minimums are different. That single fact, the date of the prior conviction relative to the new offense, shapes everything.
What a Second DUI Within Five Years Requires
When the five-year window applies, Florida law imposes mandatory consequences that the court cannot simply set aside:
- Mandatory jail. A minimum of ten days in jail, with at least 48 of those hours served consecutively.
- A long license revocation. Revocation of driving privileges for at least five years, though hardship reinstatement may be possible after the applicable period and requirements.
- Ignition interlock. Installation for at least one year when the person becomes eligible for a permanent or restricted license.
- Higher fines. Increased fines compared to a first offense, higher still if your breath-alcohol level was elevated.
- Vehicle impoundment. Immobilization or impoundment of vehicles owned by the defendant for 30 days, subject to statutory exceptions.
These are floors, not ceilings. The court can go further, but it generally cannot go below the mandatory minimums once a qualifying prior is established.
The License Consequences Can Be the Hardest Part
For many people, the jail exposure is frightening but the license revocation is what actually upends daily life. A five-year revocation affects your ability to work, care for family, and function day to day. Hardship reinstatement can help, but it has its own timeline and requirements. If the license side is your biggest concern, our article on getting a hardship license after a DUI explains how that process works.
Where There Is Still Room to Fight
Mandatory does not mean hopeless. The penalties only apply if the second DUI conviction stands and the qualifying prior is properly established. That leaves real questions to examine: Was the traffic stop lawful? Was the breath or field testing done correctly? Is the prior conviction what the state says it is, and does it truly fall within five years? Every one of those can affect whether the enhanced penalties apply at all. A second DUI is exactly the kind of case where the details deserve close attention, because the stakes are high and some of them are still in play. This article is general information about Florida law and is not advice about your specific case.
Facing a second DUI in Florida?
The five-year window changes everything about the case. The sooner it is evaluated, the more can be done about the parts that are still in play.
Last reviewed: August 2026
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