A second DWI conviction in Missouri is a Class A misdemeanor. The penalties for a 2nd DWI in Missouri include up to one year in county jail with a mandatory ten days served before probation is even possible, a license revocation of at least one year (or a flat five-year denial if both convictions fall inside a five-year window), mandatory completion of the Substance Abuse Traffic Offender Program, an ignition interlock device, SR-22 insurance, and several thousand dollars in combined fees once the fine, programs, and insurance increases are added together.
When a Second DWI Triggers “Prior Offender” Status
Missouri labels you a prior offender if you have one previous guilty plea or finding of guilt for an intoxication-related traffic offense and the new offense occurs within five years of that earlier conviction.1Missouri Revisor of Statutes. Missouri Code 577.023 – Aggravated, Chronic, Persistent and Prior Offenders The five-year clock runs from the date of the prior guilty plea or finding of guilt to the date you commit the new offense.
What qualifies as a prior is broader than most people assume. It includes standard DWI charges, driving with excessive blood alcohol content, involuntary manslaughter arising from intoxicated driving, second-degree assault committed while driving intoxicated, and any DUI conviction under a county or municipal ordinance.1Missouri Revisor of Statutes. Missouri Code 577.023 – Aggravated, Chronic, Persistent and Prior Offenders A municipal DWI guilty plea with a suspended imposition of sentence still counts.
Jail Time and the Ten-Day Minimum
DWI as a prior offender is a Class A misdemeanor,2Missouri Revisor of Statutes. Missouri Revised Statutes 577.010 – Driving While Intoxicated which carries a maximum sentence of one year in county jail.3Missouri Revisor of Statutes. Missouri Code 558.011 – Imprisonment Terms
The statute puts a hard floor under that sentence. You cannot receive probation or parole until you have served at least ten days in jail. Two narrow alternatives exist: you can avoid the ten-day minimum if you complete at least thirty days of court-supervised community service, or if you successfully finish a DWI court treatment program under Section 478.007 that also includes thirty days of community service.4Missouri Revisor of Statutes. Missouri Code 577.010 – Driving While Intoxicated
If probation is granted, conditions can include continuous alcohol monitoring through an ankle bracelet or verified breath alcohol testing at least four times per day.4Missouri Revisor of Statutes. Missouri Code 577.010 – Driving While Intoxicated The cost of monitoring equipment typically falls on you.
Fines and What the Court Cannot Do
A Class A misdemeanor fine can reach $1,000 under Missouri’s general fine schedule.5Missouri Revisor of Statutes. Missouri Revised Statutes 560.016 – Fines for Misdemeanors and Infractions Two things the court is not allowed to do matter here. It cannot sentence you to pay a fine instead of serving jail time, and it cannot grant a suspended imposition of sentence.2Missouri Revisor of Statutes. Missouri Revised Statutes 577.010 – Driving While Intoxicated That second rule has lasting consequences: a suspended imposition can eventually be removed from your record, but it is off the table for prior offenders, so the conviction stays on your record permanently.
License Revocation
Your driving privileges run on a separate track from the criminal case. A second or subsequent DWI conviction adds 12 points to your driving record.6Missouri Revisor of Statutes. Missouri Code 302.302 – Point System Accumulating 12 points within 12 months triggers a one-year revocation.7Missouri Revisor of Statutes. Missouri Code 302.304 – Suspension or Revocation of License
The Five-Year Denial
If both DWI convictions fall within a five-year window, the Department of Revenue will deny you any license for five years from the date of the second conviction. This is a flat denial, not a revocation. After the five years pass, you can petition the circuit court in the county where you were last convicted, and the court will review your habits and conduct before deciding whether to restore your driving privileges.8Missouri Revisor of Statutes. Missouri Code 302.060 – Grounds for Denial of License Approval is not guaranteed.
If the two convictions are more than five years apart, you face the one-year point-based revocation but avoid the five-year denial.
Refusing a Chemical Test
Missouri’s implied consent law adds a separate penalty layer. If you refused a breath, blood, or urine test during the arrest, the Department of Revenue will revoke your license for one year regardless of whether the criminal charge results in a conviction. The refusal itself is admissible as evidence at trial. Before reinstatement after a refusal-based revocation, you must complete SATOP and pay a supplemental fee of $60 on top of the program cost.9Missouri Revisor of Statutes. Missouri Code 577.041 – Refusal to Submit to Chemical Test
Getting Back on the Road
Restricted Driving Privilege
If your license was denied for five years, you can apply to a circuit court for a limited driving privilege for purposes like work or medical appointments. You must present evidence that your habits and conduct show you no longer pose a threat to public safety, and you must have had no alcohol-related enforcement contacts since the one that caused the denial. The court will require proof that an ignition interlock device with photo identification technology is installed on any vehicle you drive.10Missouri Revisor of Statutes. Missouri Code 302.309 – Limited Driving Privilege
Ignition Interlock Device
The device is a breath tester wired into your vehicle’s ignition. You blow into it before starting the car, and the vehicle won’t start if alcohol is detected. Missouri requires IID installation for at least six months following reinstatement if you have more than one alcohol-related enforcement contact,7Missouri Revisor of Statutes. Missouri Code 302.304 – Suspension or Revocation of License and a court can extend that period at its discretion.11Missouri Department of Revenue. Ignition Interlock Device
You must bring the vehicle to a certified installer every month for calibration and data download. Skipping an appointment or tampering with the device triggers an additional one-year revocation. A second noncompliance brings a five-year revocation.11Missouri Department of Revenue. Ignition Interlock Device
SR-22 Insurance
Before reinstatement, you must file proof of financial responsibility (an SR-22) with the Department of Revenue.10Missouri Revisor of Statutes. Missouri Code 302.309 – Limited Driving Privilege This is a certificate your insurance company sends directly to the state confirming you carry at least the minimum required liability coverage. You typically need to maintain the filing for two years from the date of your suspension, and your premiums will increase sharply once the SR-22 is attached to your policy.
Mandatory SATOP Enrollment
Every person convicted of a second DWI must complete the Substance Abuse Traffic Offender Program before license reinstatement.12Missouri Department of Mental Health. Substance Awareness Traffic Offender Program – SATOP It begins with a screening at a contracted provider, where a clinician evaluates your substance use history and other risk factors to assign a treatment level.
Second offenders are typically assigned to the Level II Weekend Intervention Program, a 20-hour course delivered over a single weekend. If the screening reveals higher-risk factors — a very high blood alcohol concentration at arrest, prior substance abuse treatment, or similar flags — you can be bumped to a more intensive level.13Legal Information Institute. Missouri Code 9 CSR 30-3.206 – SATOP Structure If you disagree with your assignment, you can seek a second opinion from another contracted provider or file for judicial review in the county where you were screened. The Weekend Intervention Program fee is currently $474.46 plus $6.70 for materials.12Missouri Department of Mental Health. Substance Awareness Traffic Offender Program – SATOP Higher-level programs cost more.
What It All Costs
The court fine is the smallest piece of what a second DWI actually costs. A realistic budget looks like this:
- Court fine: up to $1,000.5Missouri Revisor of Statutes. Missouri Revised Statutes 560.016 – Fines for Misdemeanors and Infractions
- SATOP Weekend Intervention Program: approximately $481.12Missouri Department of Mental Health. Substance Awareness Traffic Offender Program – SATOP
- Ignition interlock device: monthly rental and monitoring typically run $70 to $115, adding up to $420 to $690 or more over a six-month minimum.
- SR-22 insurance: premium increases vary by insurer and driving history, and you carry them for at least two years.
- License reinstatement fee: a nominal fee paid to the Department of Revenue.
- Defense attorney: private counsel for a second-offense DWI commonly charges $2,000 to $5,000 or more.
Total out-of-pocket costs can reach several thousand dollars beyond the fine, and the insurance premium increase alone may exceed the fine many times over.
Travel to Canada
Two DWI convictions can bar you from entering Canada. Canadian immigration law treats DWI as a serious offense, and a person with two or more such convictions is generally considered criminally inadmissible. With a single conviction, you may eventually become “deemed rehabilitated” by the passage of ten years, but multiple convictions can block that pathway. Entry would require either a Temporary Resident Permit or formal Criminal Rehabilitation approval, both of which require extensive documentation and advance planning. If you travel to Canada for work or family, address this well before you need to cross the border.