SR-22 Cost With Ignition Interlock: Monthly Out-of-Pocket Total

SR-22 insurance and ignition interlock devices are two separate court-ordered expenses that run at the same time. The SR-22 is a continuous insurance filing your carrier submits to the DMV proving you maintain liability coverage. The interlock device is a breath-test mechanism wired into your vehicle's ignition. You cannot start the car without passing the test. Most DUI convictions trigger both requirements simultaneously. Your court order will specify the duration for each — typically 3 years for SR-22 filing and 6 months to 3 years for the interlock device depending on offense severity and state law. The device requirement usually ends first, but not always. Budget for both from day one. SR-22 insurance costs $100–$300 per month depending on your violation history and state. Ignition interlock costs $150–$250 per month including installation, lease, monitoring, and calibration. Total monthly out-of-pocket: $250–$550 until the interlock requirement ends.

Installation fees run $50–$150 as a one-time charge when the device is first wired into your vehicle. Some providers waive installation if you commit to a 12-month lease. Installation takes 1–2 hours at the provider's service center. Monthly lease fees range from $70–$150 depending on provider, state, and device model. This is the base cost to rent the unit. You do not own the device. When your court-ordered period ends, the provider removes it and you stop paying the lease. Monitoring fees add $20–$50 per month. The device transmits every test result to the monitoring company, which reports compliance to the court and DMV. This fee covers data transmission and reporting. Calibration is required every 30–60 days depending on state regulation and costs $50–$100 per visit. You drive back to the provider, they recalibrate the unit to ensure accuracy, and you're back on the road in 20–30 minutes. Miss a calibration appointment and the device enters lockout mode — the car will not start until you complete calibration.

SR-22 insurance for a DUI with an interlock requirement typically costs $100–$300 per month, or $1,200–$3,600 annually. The SR-22 filing fee itself is only $25–$50, charged once per filing period by your carrier. The premium increase comes from the DUI conviction on your record, not the interlock device. Not all carriers write SR-22 policies for drivers with ignition interlock requirements. National carriers like GEICO and Progressive route high-risk business to specialty subsidiaries or decline to write the policy at all in certain states. State Farm and Allstate write some SR-22 business directly but raise premiums sharply for DUI filers. You need a high-risk carrier that writes both SR-22 and accepts drivers with active ignition interlock requirements. Bristol West, The General, Acceptance Insurance, and National General actively write this profile in most states. Expect quotes 70–150% higher than pre-DUI rates. If you had a $100/month policy before the DUI, expect $170–$250/month after filing.

Most first-offense DUI convictions require 6–12 months of ignition interlock and 3 years of SR-22 filing. You pay for both during the overlapping period, then SR-22 insurance alone after the interlock is removed. Second or aggravated DUI offenses often extend the interlock requirement to 2–3 years, matching the SR-22 filing period. In that case, you're paying full combined costs for the entire duration. Some states allow restricted licenses with shorter interlock periods for first offenders who complete alcohol education programs early. Your court order will specify exact durations for both requirements. The interlock provider and your SR-22 carrier do not coordinate — you manage both timelines separately. Missing a single month of SR-22 coverage resets your filing period to zero in most states. Missing calibration or failing a rolling retest can extend your interlock requirement by court order.

Most states mandate interlock provider indigent programs for drivers below 200% of the federal poverty line. Qualifying drivers pay 25–50% of standard monthly lease and monitoring fees. Installation fees are often waived entirely. You must apply directly with the interlock provider and submit income documentation — court clerks do not handle this. SR-22 insurance has no state-subsidized assistance program, but some carriers offer payment plans that split the six-month premium into monthly installments with no interest. This prevents the need for a $600–$1,800 upfront payment. Ask your agent about installment eligibility when you get your SR-22 quote. Some states allow hardship exemptions that reduce the interlock requirement to employment-driving only, meaning the device is only required in your work vehicle. This does not reduce the cost per vehicle but limits the requirement to one car. You cannot drive any vehicle without an interlock unless the court grants this exemption in writing.

Miss an SR-22 insurance premium and your carrier cancels the policy immediately. The state DMV receives an SR-26 notice of cancellation within 24–48 hours. Your license is suspended automatically. Reinstatement requires paying the lapsed premium, filing a new SR-22, paying a reinstatement fee ($50–$250 depending on state), and restarting your filing period from day one. Miss an ignition interlock lease payment and the provider locks the device after a 5–10 day grace period. The car will not start. You must pay the overdue balance plus a reconnection fee ($50–$100) to restore functionality. The provider also reports the delinquency to the court, which can extend your requirement or issue a bench warrant depending on jurisdiction. Both requirements must remain active and current for the full court-ordered period. Letting either lapse — even by one day — triggers enforcement consequences that cost more to fix than maintaining payment in the first place.