Yes. If you are charged with a first DUI in Ontario and your breath reading is over 80, or you refuse a demand, your licence is suspended on the spot for 90 days under the Administrative Driver's Licence Suspension (ADLS). If you are later convicted, a court-ordered driving prohibition of at least one year and a 1-year provincial suspension follow, although some eligible first offenders may be able to drive sooner with an ignition interlock.
In other words, there are two separate licence consequences: one that happens immediately, and one that happens only if the criminal case ends in a conviction. Understanding both helps you plan for work and family in the months ahead, and it shows why early advice from a DUI lawyer matters.
What Happens to Your Licence Right After a DUI Charge?
The first licence consequence comes before you ever see a courtroom. Under Ontario's Highway Traffic Act, police impose a 90-day ADLS when:
- your breath or blood shows a BAC of 80 mg or more per 100 mL of blood,
- you fail or refuse to provide a breath, blood or drug sample, or
- a drug recognition evaluation concludes you are impaired by a drug.
The suspension starts immediately. Police also impound your vehicle for 7 days, and you face an administrative monetary penalty. None of this depends on whether you are guilty of the criminal charge; it is a provincial administrative measure that runs separately. Our full guide to Ontario's administrative licence suspension walks through each step.
What if you blew in the warn range?
A BAC between 50 and 79 mg is not a criminal offence, but it still costs you your licence for a short time. A first warn-range reading brings a 3-day roadside suspension, a second within five years brings 7 days, and a third or more brings 30 days, with program requirements that increase each time.
Novice and young drivers
If you hold a G1, G2, M1 or M2 licence, are 21 or under, or drive commercially, Ontario's zero tolerance rules apply. Any alcohol at all can lead to a roadside suspension. See our post on Ontario G2 licence restrictions for more detail.
What Happens to Your Licence If You Are Convicted?
A conviction triggers more layers, and they overlap.
| Consequence | Imposed by | First offence length |
|---|---|---|
| ADLS | Police, at the roadside or station | 90 days, immediately |
| Criminal driving prohibition | The sentencing judge (s. 320.24) | 1 to 3 years |
| Provincial licence suspension | Ministry of Transportation | 1 year |
| Ignition interlock condition | Ministry of Transportation, after reinstatement | At least 1 year |
The criminal prohibition is part of your sentence. The provincial suspension follows automatically on conviction. Before the province reinstates your licence, you must also complete Ontario's Back on Track remedial program, which involves an assessment, an education or treatment component, and follow-up. Our guide to licence reinstatement in Ontario puts every stage in order.
The same framework applies whether the conviction is for impaired driving, over 80 or refusal. For the full penalty picture, including fines, see our page on a first DUI offence. A second conviction raises the provincial suspension to 3 years, and a third to a lifetime suspension that may be reduced after 10 years if conditions are met.
Can You Drive Sooner on a First DUI?
Possibly. Ontario has a reduced suspension program that can let eligible first offenders get back on the road earlier by installing an ignition interlock device in their vehicle. The program is aimed at people who resolve their case early in the court process.
The eligibility rules are strict. In general terms, the program is only open to certain first offenders, and there are time limits both for resolving the case and for enrolling. Missing a step can mean losing the chance entirely. Because the program usually depends on a guilty plea, consider it only after a lawyer has reviewed the disclosure and confirmed there is no defence worth pursuing.
For how the device works day to day, read our guide to what an ignition interlock device costs and requires.
How Does the Licence Timeline Usually Unfold?
For most first offenders, the licence consequences arrive in a predictable order, even though the exact dates depend on how the court case moves:
- Day of the charge. Police serve the 90-day ADLS notice and impound your vehicle for 7 days.
- The first weeks. You receive disclosure, and your lawyer begins reviewing the evidence. This is also when you usually need to consider early-driving options.
- End of the ADLS. Once the 90 days pass and you meet the reinstatement requirements, you can usually drive again while the criminal case continues.
- Resolution of the criminal case. If the case ends in a conviction, the criminal prohibition and provincial suspension begin. If it ends in a withdrawal or acquittal, they do not.
- Reinstatement. After a conviction, you complete Back on Track and then drive with an ignition interlock for at least a year.
Many people are surprised to learn they may be driving again at step 3, only to lose their licence for a much longer period at step 4. Planning for that gap is part of a sound defence strategy.
What If You Drive While Suspended or Prohibited?
Driving during the ADLS or a provincial suspension is an offence under the Highway Traffic Act, with its own penalties. Driving while subject to a criminal prohibition order is more serious: it is a separate criminal charge. Our article on driving while disqualified vs driving under suspension explains the difference. Whatever happens, do not get behind the wheel until you are sure you are legally allowed to.
Can a Lawyer Help You Keep Your Licence?
A lawyer usually cannot undo the ADLS, because it is imposed automatically and appeals are limited. Where a lawyer can make a difference is in the criminal case, which controls the much longer prohibition and suspension.
If the Crown withdraws the charge or the court finds you not guilty, the criminal prohibition and the conviction-based provincial suspension never happen. Defences often focus on whether police had lawful grounds for the stop and the demands, whether they respected your right to counsel, and whether the breath instrument records support the reading. If a guilty plea turns out to be the sensible route, a lawyer can help make sure it happens in time to preserve eligibility for the reduced suspension program.
Timing matters in both directions. Waiting too long can close off early-driving options, while rushing to plead can give up a defence you did not know you had.
We represent drivers charged across the GTA. Our Oakville page explains what an Oakville DUI charge means for a commuter's licence, and our Thornhill page covers what happens to your licence after a Thornhill DUI charge.
Talk to a DUI Lawyer About Your Licence Today
Losing your licence can affect your job, your family and your independence. The decisions you make in the first weeks after a charge can shape how long you are off the road. Speak with our Toronto impaired driving defence team before you decide anything.
We will explain how the ADLS, the criminal prohibition and the provincial suspension apply to you, and whether early-driving options may be available.
Jonathan Lapid — DUI & Impaired Driving Lawyer
Licensed by the Law Society of Ontario with more than 25 years defending drinking-and-driving charges in Toronto and GTA courts. Interviewed by Maclean’s and Global News on impaired-driving law.
