What an ignition interlock costs in Oklahoma
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Oklahoma publishes its own figures rather than leaving it all to vendors: $150 to $350 to fit the device and $99.99 to $114.99 a month while it stays on the car. Removal is billed separately at the end of the term.
Three charges make up the bill, not one: fitting the device, keeping it on the car, and taking it out at the end. Over a full term the monthly fee is the bulk of it, which is why a cheap installation on a long requirement costs more than a dearer one on a short.
What Oklahoma lets a provider charge
| Charge | Amount | What it covers |
|---|---|---|
| Installation | $150–$350 | $150 for a vehicle over five years old, $200 for a newer one, $225 hybrid or electric, $350 exotic |
| Monthly | $99.99–$114.99 | $99.99 traditional plan on autopay, up to $114.99 with roadside cover |
| Removal | $89–$150 | Taking the device out at the end of your term |
Filed price schedule filed by the provider with the state · Smart Start Oklahoma State Pricing Schedule — Oklahoma Board of Tests · effective 2025-10-22 · checked 2026-08-23
The fees nobody quotes you over the phone
These are charged on top of the three above, and they are where a cheap-looking Oklahoma quote turns expensive.
| Fee | Amount |
|---|---|
| Enrollment fee | $40 |
| Final compliance download | $45 |
| Administrative closing fee | $75 |
| Service or violation lockout | $87.50 each |
| Missed appointment | $55 (waived with 24 hours notice) |
| Calibration and inspection visit | $25 |
- Prices exclude state fees and taxes.
What decides the total in Oklahoma
The monthly fee matters less than how long you pay it, and that is set by the requirement rather than the provider. In Oklahoma a first offense carries 180 active interlock days for a first revocation, 365 for a second, 730 for a third or later — and the last 90 days of each must be violation-free The programme is run by Board of Tests for Alcohol and Drug Influence, with driving privileges issued by Service Oklahoma, which is also who decides whether a recorded event extends it.
That is the part worth budgeting for: events add months, and months are what the bill is made of. What counts as a violation → · All Oklahoma rules and centers →
If you cannot pay for it in Oklahoma
Oklahoma is one of the states that wrote an answer into its own rules rather than leaving it to the provider:
- Missed appointment — $55 (waived with 24 hours notice)
None of it is automatic. You apply through Board of Tests for Alcohol and Drug Influence, with driving privileges issued by Service Oklahoma, and you apply before the device goes in rather than after.
Who operates in Oklahoma, and why it changes the price
8 approved networks run in Oklahoma: Intoxalock (77), Smart Start (43), Low Cost Interlock (29), LifeSafer (20), RoadGuard Interlock (9), Guardian Interlock (6), ADS Interlock (3), Alcolock USA (3). Inside a state that publishes a figure the brand barely moves the bill, so choose on the drive to calibration rather than the quote.
Where it is fitted in Oklahoma
142 certified points in our index. The busiest cities:
Cost questions in Oklahoma
How much does an ignition interlock cost in Oklahoma?
Oklahoma publishes its own figures rather than leaving it all to vendors: $150 to $350 to fit the device and $99.99 to $114.99 a month while it stays on the car. Removal is billed separately at the end of the term.
Does Oklahoma cap what a provider can charge?
Not as a hard ceiling. Oklahoma publishes figures, but they are the price list a provider filed with the state, so the number tells you what is normal rather than what is forbidden. Get a second quote if yours sits well above it.
What else does Oklahoma charge on top of the device?
Beyond what the provider bills, the state has its own charges: Enrollment fee $40; Final compliance download $45; Administrative closing fee $75; Service or violation lockout $87.50 each; Missed appointment $55 (waived with 24 hours notice); Calibration and inspection visit $25. These are the lines people are surprised by, because the vendor quote does not include them.
Where can I have an interlock fitted in Oklahoma?
We index 142 certified installation points across 69 Oklahoma cities. Book with a provider the state approves rather than the nearest pin on the map: time on an unapproved device does not count toward the term.