Cost of an Ignition Interlock Device After a DUI: Install, Monthly, Removal

Installation fees range from $70 to $150 in most states, paid directly to the IID service provider at the time of installation. The provider mounts the device to your vehicle's dashboard, wires it into the ignition system, and calibrates the breath alcohol detection threshold to your state's legal limit—typically 0.02% BAC for restricted driving privileges. Your court order or DMV reinstatement letter will include a list of state-certified IID providers. You schedule the installation appointment directly with the provider. Most installations take 60 to 90 minutes. Bring your court order, driver's license, vehicle registration, and proof of insurance to the appointment. Some providers waive or reduce installation fees if you qualify for indigent status under your state's hardship assistance program. Florida, California, Texas, and Illinois have formal indigent applications processed through the court system. Approval typically requires proof of income below 150% of the federal poverty line. Contact the provider before your installation appointment to confirm whether your state offers fee reduction and what documentation you need to bring.

Monthly IID fees run $60 to $90 per month in most states. This fee covers device calibration, breath test data downloads, and compliance reporting to your state DMV or court monitoring program. The provider uploads breath test results and any violations—failed tests, tampering attempts, missed rolling retests—directly to the state. Calibration appointments are required every 30 to 60 days depending on your state's monitoring rules. You return to the provider's service center for a physical inspection and software update. Miss a calibration appointment and the device enters lockout mode. Your vehicle won't start until you complete the appointment and pay a lockout reset fee, typically $30 to $50. Over a one-year IID mandate, monthly fees alone total $720 to $1,080. Over a two-year mandate—common for second-offense DUI convictions in states like California, Illinois, and Ohio—monthly fees reach $1,440 to $2,160. This is the largest component of total IID cost and the one most drivers underestimate when they receive their court order.

IID removal costs $50 to $100 when your mandate period ends. The provider uninstalls the device, removes the wiring harness, and submits a final compliance certificate to your state DMV. You cannot legally remove the device yourself—unauthorized removal triggers a violation report and can extend your mandate period or revoke your restricted driving privilege. Schedule your removal appointment only after you receive written confirmation from your DMV or court that your IID mandate has ended. Some states require a clean compliance period—typically 90 to 180 consecutive days with zero failed tests, zero missed calibrations, and zero lockout events—before they will authorize removal. If your compliance record shows recent violations, your removal date may be pushed back even if your original mandate period has ended. The provider's final compliance certificate is required documentation for full license reinstatement in most states. Keep a copy of this certificate with your reinstatement paperwork. Lost certificates can take 30 to 60 days to replace and delay your reinstatement timeline.

DUI convictions trigger SR-22 filing requirements in nearly every state. SR-22 is a certificate your insurance carrier files with the state DMV proving you carry at least the state's minimum liability coverage. The SR-22 filing period typically runs three years from your conviction date—not from your IID installation date. SR-22 filing fees range from $15 to $50 depending on your carrier and state. The larger cost is the premium increase. DUI convictions move you into high-risk insurance pricing. Post-DUI premiums typically run $140 to $240 per month for minimum liability coverage with SR-22 filing, compared to $80 to $120 per month for a clean-record driver in the same state. Florida and Virginia require FR-44 filing instead of SR-22 for DUI convictions. FR-44 mandates higher liability limits—$100,000/$300,000 bodily injury in Florida, double the state's standard minimum. FR-44 premiums run 20% to 40% higher than SR-22 premiums because of the increased coverage requirement. Budget $180 to $300 per month for FR-44 coverage in these states.

Add installation, monthly fees, removal, and SR-22 filing together. For a one-year IID mandate, total out-of-pocket cost typically ranges from $1,200 to $2,400 paid to the IID provider. This does not include your insurance premium increase. Insurance premiums with SR-22 filing add $1,680 to $2,880 per year compared to clean-record rates. Over a three-year SR-22 filing period, the insurance cost delta alone runs $5,040 to $8,640. Most drivers budget for the IID device but don't account for the multi-year insurance impact. If your DUI conviction resulted in license suspension and you don't currently own a vehicle, you still need SR-22 or FR-44 coverage to reinstate your license or qualify for a restricted driving privilege. Non-owner SR-22 insurance provides the required filing without insuring a specific vehicle. Non-owner SR-22 premiums typically run $30 to $60 per month—substantially lower than standard SR-22 because the policy excludes collision and comprehensive coverage.

The IID locks your ignition if you fail a breath test—typically set at 0.02% BAC or higher. One failed test doesn't automatically extend your mandate, but it does trigger a violation report to your state monitoring agency. Some states impose a 30-day extension for each failed test. Others require a clean 90-day compliance window after any violation before they will authorize device removal. Missed calibration appointments trigger lockout mode after a grace period, typically three to seven days. You pay a lockout reset fee to restore device function. Repeated missed appointments signal non-compliance and can result in mandate extension or revocation of your restricted driving privilege. Tampering attempts—disconnecting the device, bypassing the ignition interlock, or having another person provide a breath sample—are Class A misdemeanors in most states. Tampering triggers immediate lockout, a violation report, and potential criminal charges. Insurance carriers may cancel your SR-22 policy if tampering appears in your compliance record, which terminates your restricted driving privilege and restarts your SR-22 filing clock.

Contact a high-risk insurance carrier that handles SR-22 and FR-44 filings in your state. Not all carriers write policies for drivers with active IID mandates. Carriers that specialize in post-DUI coverage include Progressive, The General, Direct Auto, Acceptance Insurance, and Bristol West. You need liability coverage that meets or exceeds your state's SR-22 minimum limits. Most states require 25/50/25 coverage—$25,000 per person for bodily injury, $50,000 per accident, and $25,000 for property damage. Florida FR-44 filers need 100/300/50 coverage. Confirm your policy meets the filing requirement before the carrier submits the SR-22 or FR-44 certificate to your DMV. If you don't own a vehicle, request a non-owner SR-22 policy when you call for quotes. Non-owner policies provide liability coverage when you drive a vehicle you don't own—rental cars, borrowed vehicles, employer vehicles. The policy includes the SR-22 filing your state requires but excludes collision and comprehensive coverage, which lowers the premium substantially compared to standard SR-22 policies.