In Florida, a third DUI is a major legal threshold. This is the point where the state often stops treating the offense as a "mistake" and begins treating it as a felony.
The penalties depend entirely on the 10-year lookback period (the time between your current offense and at least one of your previous convictions).
1. Third DUI Within 10 Years (Third-Degree Felony)
If your third DUI occurs within 10 years of a prior conviction, it is usually charged as a Third-Degree Felony.
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Mandatory Jail: Minimum 30 days in jail (48 hours must be served consecutively).
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Maximum Prison: Up to 5 years in Florida State Prison.
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Fines: $2,000 to $5,000 (Minimum $4,000 if BAC was .15+ or a minor was present).
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License Revocation: Minimum 10-year revocation.
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Hardship Eligibility: You must serve 2 years of "hard time" (no driving at all) before you can even apply for a hardship license.
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Ignition Interlock (IID): Mandatory for at least 2 years after you get your license back.
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Vehicle Impoundment: 90 days.
2. Third DUI Outside 10 Years (First-Degree Misdemeanor)
If more than 10 years have passed since your last conviction, the charge is typically a misdemeanor, but the penalties are still much harsher than a first or second offense.
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Jail Time: No mandatory minimum, but the judge can sentence you to up to 12 months in jail.
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Fines: $2,000 to $5,000.
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License Revocation: Minimum 180 days to 1 year.
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Ignition Interlock (IID): Mandatory for at least 2 years.
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DUI School: Mandatory Level 2 (21 hours).
Comparison of 3rd DUI Penalties
|
Penalty |
Within 10 Years (Felony) |
Outside 10 Years (Misdemeanor) |
| Charge Level | 3rd Degree Felony | 1st Degree Misdemeanor |
| Mandatory Jail | 30 Days | None (but likely) |
| Max Incarceration | 5 Years Prison | 12 Months Jail |
| License Revocation | 10 Years | 180 Days – 1 Year |
| Hardship Waiting | 2 Years | Varies (often no hardship) |
| Ignition Interlock | 2 Years | 2 Years |
| Vehicle Impound | 90 Days | 10 Days |
Permanent Life Consequences
Because a third DUI within 10 years is a felony, a conviction means:
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Loss of Civil Rights: You lose the right to vote, serve on a jury, and possess a firearm.
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Employment: Many professional licenses (nursing, teaching, real estate) are automatically revoked or suspended upon a felony conviction.
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Travel: You may be barred from entering countries like Canada, which strictly forbid entry to anyone with a felony-level DUI.
The "Special Supervision" Requirement
To get a hardship license after the 2-year waiting period for a 10-year revocation, you must remain in the DUI Special Supervision Program for the entire remainder of the 10 years. This involves monthly check-ins and total abstinence from alcohol and drugs. One "slip-up" or missed meeting results in the permanent loss of your driving privilege.

