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Ignition Interlock Cost & Pricing

When an ignition interlock device is mandated, the offender is responsible for the cost of leasing the device. The cost of an interlock device can vary depending on a number of factors, including your state, type of device needed, and your interlock provider. 

Typically, a court mandate will specify the type of device that must be installed. For example, some states require devices with cameras to photograph the user during tests. On average, the installation will cost between $70 and $150. After that, the lease will typically cost between $40-100 per month.  Additional fees for lockouts or calibration may also apply. 


How much does an ignition interlock device cost?

As mentioned, the costs can vary. However, there are some things you can look into when asking “how much does an ignition interlock device cost?”

  • Financial assistance: Some states offer financial assistance to offenders who cannot afford an interlock. The eligibility requirements vary by state, and in some cases eligibility is determined by the judge.  
  • Additional features: There are different types of interlock devices. Each provider offers different features on their devices, and some may have multiple models that are “customizable” to fit any requirements imposed by the authorities. Some extra features might include: GPS capability, a camera, and real-time reporting for results. The cost of an ignition interlock device lease may increase when these features are added. The requirements for interlock types vary by state, the type of offense, and the chosen provider.  The more of these features that are included, the more expensive the device may cost. These features will vary by state law, severity/repetition of offense and chosen provider.
  • Ignition interlock device term: This refers to the length of time you are required to have an ignition interlock device installed, which is usually determined by the court. If your device is compliance-based, the length of your interlock term can increase with violations or failed tests so be sure to remain compliant. Obviously, the cost will be greater overall if your term is longer.
  • Type of vehicle: the cost can vary depending on the year, make and model of the vehicle that is having the ignition interlock installed. Some vehicles result in higher fees because of the time and difficulty involved in installing a device in their system.

While the price can vary especially when these factors are in play, the cost per day for an ignition interlock device is generally between $2.50 and $3.50 per day. Also, check your chosen provider for upcoming discounts. There are often promotions like free installation, first month free, or discounts offered during promotional periods. 

Most importantly, an ignition interlock device is cheaper than a second offense would ever be. It’s also cheaper than rideshare or public transit.  If you really want to prevent drinking and driving, and reoffending, an IID is the best and most cost-effective way to do so.