Should IID Installation Come Before SR-22 Filing After a DUI?

Missouri law mandates SR-22 filing for three years after any alcohol-related driving offense, starting from your reinstatement date. If your BAC was 0.15% or higher, if you had a minor in the vehicle, or if this is a repeat offense, the court also orders an ignition interlock device for six months to four years depending on conviction class. The two requirements run on separate timelines administered by different agencies. Your SR-22 filing goes through your insurance carrier to the Missouri Department of Revenue. Your IID installation goes through a state-certified installer who reports compliance to the court and DOR independently. Neither agency coordinates these processes for you. Most carriers require disclosure of the IID requirement before issuing an SR-22 policy. Filing SR-22 without mentioning pending IID installation gives the carrier grounds to cancel your policy retroactively once they discover the device through their next MVR pull or when you contact them for installation coordination. That cancellation creates a filing gap, which resets your three-year SR-22 clock to zero in Missouri.

Schedule IID installation immediately after sentencing, before contacting insurance carriers about SR-22. Missouri-certified installers include Intoxalock, LifeSafer, Smart Start, and Guardian Interlock. Installation takes 60 to 90 minutes and costs $70 to $150 upfront, plus $60 to $80 monthly monitoring fees. Once the device is installed and you receive your installation certificate, contact non-standard carriers that write IID-equipped policies: GAINSCO, The General, Direct Auto, Bristol West, and Acceptance all operate in Missouri and accept DUI-SR-22 applicants with active IID requirements. Provide your installation certificate, court order, and DL number when requesting quotes. This sequence ensures your SR-22 policy is underwritten with full knowledge of the IID from day one. The carrier prices the risk correctly, files your SR-22 with the state, and you avoid the retroactive cancellation scenario that restarts your filing period. Your three-year SR-22 clock starts on your reinstatement date, not your installation date, so delaying SR-22 by two weeks to install IID first does not extend your total filing obligation.

If you file SR-22 first without disclosing pending IID installation, your carrier may issue the policy and submit the SR-22 certificate to Missouri DOR. When you later contact them to add IID coverage or when they pull your MVR during a routine review, they discover the undisclosed court-ordered device. Most carriers treat this as material misrepresentation and cancel the policy effective from the original issue date. Missouri DOR receives an SR-26 cancellation notice, which creates a filing gap. Any gap in SR-22 coverage—even one day—resets your three-year filing requirement to start over from the date you refile. Some drivers assume they can switch carriers after IID installation to avoid this scenario. Missouri requires continuous SR-22 coverage, meaning any lapse between cancellation and new filing still resets the clock. Switching carriers does not erase the gap created by the first carrier's retroactive cancellation.

A first-offense DUI in Missouri with BAC below 0.15% and no IID requirement typically increases your insurance rate 80% to 110% over pre-conviction premiums. Adding an IID requirement increases that to 110% to 150% because fewer carriers write the coverage and the device itself signals higher assessed risk. Monthly SR-22 premiums for DUI drivers with IID in Missouri range from $140 to $240 for state minimum liability coverage (25/50/25). Estimates based on available industry data; individual rates vary by age, county, prior insurance history, and conviction class. The IID monitoring fee is separate and billed directly by the installer, not through your insurance premium. Carriers that write IID-equipped SR-22 policies price them as non-standard or high-risk auto, not standard auto. Your previous carrier—State Farm, Allstate, Geico, or Progressive—may file SR-22 for you if you were already insured with them at the time of arrest, but most non-renew at your policy term. Plan to move to the non-standard market for the duration of your SR-22 filing period.

Missouri DUI convictions trigger a 30-day administrative suspension from the date of arrest if you failed or refused chemical testing, followed by a 90-day denial of reinstatement after conviction. Your IID installation requirement begins on your reinstatement date, and your SR-22 filing requirement also starts on that date. If your conviction class requires IID, you cannot reinstate your license without proof of installation and proof of SR-22 filing. The court order specifies your IID duration—six months for first-offense with aggravating factors, one year for second offense, and up to four years for third or subsequent offense. Your SR-22 filing runs three years regardless of IID duration. Most drivers complete IID installation during their denial period so they are ready to reinstate on day 91. File SR-22 within the final two weeks of your denial period, after IID installation is complete and documented. This ensures both compliance items are ready for your reinstatement appointment at the Missouri Department of Revenue license office.

GAINSCO, The General, Bristol West, Direct Auto, and Acceptance all write non-standard auto policies for Missouri DUI offenders with active IID requirements. Not all agents represent these carriers, so contact them directly or use a high-risk insurance broker licensed in Missouri. Dairyland and Safe Auto also operate in Missouri but acceptance varies by county and conviction class. Third-offense DUI or felony DUI convictions may require a surplus lines carrier accessed through a specialty broker. Progressive and Nationwide occasionally write IID-equipped policies for existing customers but typically non-renew at term. Request quotes from at least three carriers. Rates for identical coverage can vary $60 to $100 per month between carriers for the same driver profile. All carriers require your court order, IID installation certificate, and SR-22 filing request submitted together as a package. Provide these documents upfront to avoid delays or partial quotes that don't account for the IID surcharge.