First DUI in Ontario: Penalties, Licence Suspension & Defence Options (2026)

Being charged with impaired driving for the first time is disorienting. One roadside stop, and within hours you have a criminal charge, a suspended licence, an impounded vehicle, and a court date. If this has just happened to you, take a breath: a first DUI in Ontario is serious, but it is also the most heavily litigated criminal charge in Canada, and a careful review of the evidence frequently reveals a defence that is far from obvious on the night of the arrest.

This guide explains what a first impaired driving charge actually means in Ontario in 2026 — the immediate consequences, the penalties on conviction, the licence suspension, and the defence options that may keep a conviction off your record.

What happens immediately at the roadside

In Ontario, several consequences apply the moment an officer forms reasonable grounds — long before you ever see a courtroom:

• 90-day licence suspension. An Administrative Driver’s Licence Suspension (ADLS) takes effect immediately and lasts 90 days. It is separate from the criminal case and applies whether or not you are ultimately convicted.
• 7-day vehicle impoundment. Your vehicle is towed and impounded for seven days at your expense.
• Administrative penalties. Reinstatement fees and an administrative monetary penalty apply to lift the suspension.

Because the ADLS is administrative rather than criminal, it is not something the criminal court ‘fixes’ at your first appearance. Understanding this distinction early matters, because it changes what you should — and should not — do in the first weeks.

Penalties for a first DUI conviction in 2026

If a first impaired driving charge results in a conviction, the Criminal Code sets mandatory minimum penalties that a judge cannot go below. For a first offence these are tied to your breath-alcohol concentration (BAC):

• 80 to 119 mg of alcohol in 100 mL of blood: minimum $1,000 fine.
• 120 to 159 mg: minimum $1,500 fine.
• 160 mg or more: minimum $2,000 fine.
• Refusing to provide a breath sample: minimum $2,000 fine.

On top of the fine, a first conviction carries:

• A one-year federal driving prohibition across Canada (which can be shortened through the ignition-interlock stream — see below).
• A permanent criminal record, with the travel, employment, and immigration consequences that follow.
• A victim fine surcharge added to the fine.

Second and subsequent offences escalate sharply — a second conviction carries a mandatory 30 days in jail and a two-year prohibition, and a third carries a minimum 120 days and a three-year-plus prohibition — but for most first-time clients the central concern is the record and the licence.

The licence suspension, explained

There are really two separate suspensions, and people often confuse them:

• The 90-day ADLS described above, which is immediate and administrative.
• The post-conviction driving prohibition, which begins only if and when you are convicted, and lasts a minimum of one year for a first offence.

Ontario’s Reduced Suspension with Ignition Interlock Conduct Review program allows eligible first offenders to return to driving sooner — often after three months — by installing an approved ignition-interlock device that requires a clean breath sample before the car will start. Enrolment also requires completing the mandatory Back on Track remedial program.

The consequences that last longer than the penalty

For many first-time clients, the fine is not the biggest problem. The lasting consequences include:

• Insurance. An impaired conviction typically moves a driver into high-risk insurance for years, often multiplying premiums.
• Employment. A criminal record can affect jobs that involve driving, bonding, professional licensing, or travel.
• Travel and immigration. Impaired driving is treated as serious criminality for immigration purposes, and can affect entry to other countries, including the United States.

These collateral consequences are exactly why a first offence should never be conceded before the evidence is reviewed. The fastest resolution — an early guilty plea — is rarely the right one.

Defence options for a first DUI

Impaired driving is the most Charter-litigated offence in Canada precisely because so many things have to be done correctly for the Crown to prove its case. A thorough defence examines each of them:

• The disclosure. Police notes, the breath-room video, the technician’s certificate, instrument maintenance and calibration records, and dispatch logs are all reviewed for gaps and inconsistencies.
• The breath instrument and technician. The reading only carries its statutory presumptions if a qualified technician operated a properly calibrated instrument within the required time window. Defects can defeat the reading.
• The stop and the demand. Whether the officer had lawful grounds to stop you, to make a roadside screening demand, and to make the breath demand.
• Charter breaches. Section 8 (unreasonable search), section 9 (arbitrary detention), and section 10(b) (the right to counsel without delay) applications can lead a judge to exclude the breath evidence altogether.
• Resolution without a record. Where the Crown’s case has weaknesses, it may be possible to negotiate a withdrawal, a reduction to careless driving under the Highway Traffic Act, or a stay — none of which leaves a criminal record.

Do you need a lawyer for a first DUI?

You are entitled to represent yourself, but the stakes — a permanent record, a year off the road, and years of elevated insurance — are high, and the law is technical. An experienced impaired-driving lawyer reviews the disclosure for the defects that are invisible to someone who has not litigated these cases, and negotiates from a litigation-ready posture that changes how the Crown approaches the file.

Aaron M. Spektor has defended impaired driving charges across the Greater Toronto Area for 30 years. For location-specific guidance, see our pages for an impaired driving lawyer in Toronto or a DUI lawyer in Mississauga, or read more about our impaired driving defence practice.

What to do next

If you have been charged with a first DUI in Ontario, do not discuss the details of the incident with anyone but your lawyer, keep every document the police gave you, and get advice before your first court date. The earlier a defence review begins, the more options tend to remain open.

Aaron reviews every inquiry personally. For a free, confidential consultation, request an appointment online or call (416) 599-1900 — after-hours and weekend calls are answered.

Sources

• Criminal Code (R.S.C. 1985, c. C-46) — Justice Laws
• Impaired driving penalties — Government of Ontario
• Highway Traffic Act (Ontario) — e-Laws

This article is general information, not legal advice. Every case turns on its own facts; speak with a lawyer about your specific situation.