Ignition Interlock Cost in Missouri

Consequences for Getting a DWI in Missouri

Please note that the information in the following sections is for general informational purposes only. The materials contained herein are not intended to and should not be relied upon or construed as a legal opinion or legal advice or to address all circumstances that might arise. Information may be dated and may not reflect the most current developments. You should contact your attorney to obtain advice with respect to any particular legal matter. Only your individual attorney can provide assurances that the information contained herein – and your interpretation of it – is applicable or appropriate to your particular situation. Smart Start expressly disclaims all liability regarding actions taken or not taken based on any or all content. Information as of July 1, 2025.

According to the Missouri Department of Revenue, drivers who get a DWI in Missouri can face both criminal and administrative penalties, including a license suspension of 90 days or more. Drivers with one or more previous DWIs on their record, especially within the past five years, will typically face harsher penalties. 

In most cases, a DWI in Missouri is considered a misdemeanor offense, punishable by a fine of up to $1,000 for a typical Class B misdemeanor first offense. Drivers who get more than one DWI, or whose arrest involves circumstances like a crash with injuries or deaths, may be eligible for felony DWI charges under Missouri law, with a potential fine of up to $10,000 for a class C, D, or E felony.

You’ll also usually have to pay a fine as part of the process to get your license back. Check the Missouri Department of Revenue’s reinstatement requirements guide to learn about your financial obligations for restoring your Missouri driver’s license after completing your DWI program.

Missouri Ignition Interlock Service Center Locations

Hit the road and get back to your life — Smart Start has you covered with affordable prices, fast installation, and always-available customer care. Get in touch with our Program Advisors to set up your installation appointment at a service center near you.

Understanding the Installation Process For an Ignition Interlock Device in Missouri

The road to freedom starts with a call to our Program Advisors and a free, personalized quote for an Ignition Interlock device cost near you. We’ll help you locate a service center in your area, with expert assistance every step of the way and same-day service often available. 

During your appointment, skilled technicians will:

• Install your device.
• Demonstrate how to use it.
• Provide hands-on training and answer your questions in depth.