Updated May 2026
What Is Ignition Interlock Insurance Insurance?
Ignition interlock insurance is not a separate coverage type. It's the liability insurance you're required to carry when your state mandates an ignition interlock device installation as a condition of license reinstatement or hardship license eligibility. The device itself locks your ignition until you pass a breath test. The insurance is standard auto liability, but most states require you to prove continuous coverage through an SR-22 or FR-44 certificate filed by your insurer directly with the DMV. The filing proves you meet state minimum liability limits while the device is active.
- You're approved for a hardship license in Ohio after a first-offense DUI. The court orders IID installation for one year. You lease the device for $90/month and pay $75 for installation. You also need SR-22 insurance for three years. Your liability premium jumps from $95/month to $140/month due to the DUI conviction, and the SR-22 filing adds another $25/month. Total monthly cost during the IID year: $255 for device, filing, and coverage combined.
- You complete a two-year license suspension in Florida after a second DUI. To reinstate, the state requires FR-44 insurance and a six-month IID installation. The device costs $110/month. Your FR-44 filing increases your premium by $50/month compared to standard coverage because FR-44 requires higher liability limits and you're in the high-risk tier. You pay $110 for the device, plus approximately $200/month for the FR-44 policy itself. After six months, the device comes off but the FR-44 filing continues for three years total.
- You receive a restricted license in Pennsylvania after an uninsured-driving suspension combined with a points-related offense. The state allows hardship driving but does not require IID for your specific cause. You need SR-22 insurance for one year but no device. Your monthly cost is $120 for liability coverage plus $20/month for the SR-22 filing. This scenario shows that not all hardship licenses trigger IID requirements—device mandates are typically reserved for alcohol-related offenses.
How Much Does Ignition Interlock Insurance Insurance Cost?
The SR-22 or FR-44 filing itself adds $15–$35/month ($180–$420 annually), but the underlying premium increase from the DUI violation is much larger—expect total liability premiums of $120–$250/month depending on state, violation history, and vehicle.
- Number of prior DUI offenses—second or third offenses trigger higher filing fees and longer device requirements in most states
- State-mandated filing type—FR-44 in Florida and Virginia requires double the liability limits of SR-22 and costs $30–$50/month more
- IID installation duration—court-ordered device periods range from six months to multiple years, with longer periods increasing total cost significantly
- Gap in coverage history—any lapse in SR-22 or FR-44 filing restarts the clock and may trigger re-suspension
- Vehicle type and use—if you don't own a vehicle, non-owner SR-22 policies cost $25–$60/month and satisfy the filing requirement without insuring a specific car
- Carrier availability—not all insurers write policies for drivers with IID requirements; non-standard carriers charge higher rates but accept the risk
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Who Needs Ignition Interlock Insurance Insurance?
Ignition interlock insurance is mandatory if a court or DMV orders IID installation as a condition of hardship license eligibility or full reinstatement after a DUI suspension. You cannot legally drive during the device period without both the device installed and SR-22 or FR-44 insurance active. If you're applying for a hardship license in a state that requires IID for your offense type, budget for both the device lease and the elevated insurance premium before filing your application.
Check your suspension notice or hardship license eligibility letter for IID requirements. If the device is mandatory, the insurance filing is also mandatory—there is no decision to make. If your state offers optional early reinstatement with IID versus waiting out the full suspension, calculate total cost over the suspension period: device lease plus elevated premiums versus lost wages and transportation costs without driving. The device option is typically worth it if your suspension exceeds six months and you need to drive for work.