Missouri DWI Laws & Penalties (2026)
Missouri uses the term DWI and has a 5-year lookback. Expungement is available for first offenses after 10 years.
Missouri DWI Penalties
1st Offense
2nd Offense
BAC Limits in Missouri
📜 Expungement
DWI expungement is available in Missouri. Waiting period: 10 years after completion.
Expungement Guide →💰 Estimated Total Cost
A first DWI in Missouri typically costs $10,000-$25,000+ including fines, attorney, classes, IID, and insurance increases.
Calculate Your Cost →DWI Lawyers by City in Missouri
Find a DWI Attorney in Missouri
Connect with experienced DWI lawyers in Kansas City, St. Louis, Springfield, and across Missouri.
Missouri DWI Deep Dives
🚨 First Offense Penalties
Complete guide to what happens on your first DWI in Missouri.
🍺 BAC Limit
Legal BAC limits for standard, commercial, and under-21 drivers.
💰 DWI Cost
Full cost breakdown: fines, attorney, classes, insurance, and more.
🔧 Ignition Interlock Cost
IID installation, monthly fees, and provider comparison.
🚫 License Suspension
Suspension length, restricted license options, and reinstatement steps.
🧮 Cost Calculator
Estimate your total DWI cost with our interactive tool.
Official Sources & References
- 📋 Mo. Rev. Stat. § 577.010 — Missouri DWI statute
- 🚗 Missouri DMV — License suspension, reinstatement, IID requirements
- 📊 NHTSA Impaired Driving Data
- 🛡️ MADD — Mothers Against Drunk Driving
DUIFinders.com is not a law firm and does not provide legal advice. Information is for general purposes only. Consult a licensed attorney in Missouri for advice specific to your situation.
Missouri DWI FAQ
What is the BAC limit in Missouri?
The legal BAC limit in Missouri is 0.08% for regular drivers, 0.04% for commercial drivers, and 0.02% for drivers under 21.
What are the penalties for a first DWI in Missouri?
A first DWI in Missouri is a Misdemeanor. Penalties include Up to 6 months jail, Up to $1,000 in fines, and 30-day suspension + 60 days restricted license suspension.
Is an ignition interlock device required in Missouri?
Required for repeat offenders
Can a DWI be expunged in Missouri?
Yes, DWI expungement is available in Missouri. Waiting period: 10 years after completion.
What is the lookback period for DWI in Missouri?
Missouri uses a 5-year lookback period to determine if an offense counts as a repeat offense.