Total IID program cost: install, monthly lease, calibrations, and removal
| Provider | Install | Monthly Lease | Notes |
|---|---|---|---|
| Intoxalock | $70 – $150 | $78 – $120 | Advertises "as low as $1.96/day"; real invoices cluster at $2.60–$4.00/day |
| Smart Start | from $150 | $60 – $85 | Warranty included; transfer fee ~$200 reported |
| LifeSafer | $50 – $150 | $50 – $120 | Wide state-by-state spread |
| Draeger | $0 – $100 | ~$80 | Install often bundled into lease; removal ~$55 |
| Guardian | $70 – $170 | $50 – $90 | Strong in states with certified-provider lists |
Advertised ranges collected from provider pricing pages in 2025. Nearly every provider is franchised or state-certified, so your local service center's quote is the only one that counts — and states set some fees directly.
| Term | Low (60/mo lease) | Mid (85/mo lease) | High (120/mo lease) |
|---|---|---|---|
| 6 months | $610 | $760 | $1,010 |
| 12 months | $1,045 | $1,345 | $1,820 |
| 24 months | $1,915 | $2,515 | $3,440 |
Low/mid include $100 install + calibrations at $25 every 60 days + $75 removal; high includes $120/mo lease, $30 calibrations, and $100 removal. Your state's term — not the device — is the biggest cost driver.
| State | First-offense term (commonly reported) |
|---|---|
| California | 6 months |
| Florida | 6 months minimum (12+ at 0.15% BAC) |
| New York | 6 months minimum (12+ for aggravated DWI) |
| Texas | 180 days |
| Colorado | 8 months |
| Arizona | 12 months |
| Pennsylvania | 12 months |
| Washington | 12 months |
Terms shift with legislation, apply to different offense tiers, and judges can extend them. Treat this table as orientation and verify your term with your DMV, court, or monitoring authority — that's the number the whole budget hangs on.
An IID program is a lease with fixed bookends. You pay to install, you pay every month for the device and its monitoring, you pay for periodic calibration visits where the device gets downloaded and verified, and you pay to remove it when the term ends. Providers advertise the monthly number; the honest budget is all four pieces.
Total = install + months × monthly lease + ceil(months × 30 ÷ calibration interval) × calibration fee + removal + misc. Effective monthly = total ÷ months. The state quick-fill just preloads the months field — change it freely if your court paperwork says something different.
Pick your provider preset to load typical install and lease figures, then replace them with your actual quote — local service centers vary. Set the term from your court order, and check the calibration interval: some states require 30-day service visits, which quietly adds $10-$15 a month versus the 60-day default. If you've had a lockout or need the device moved between vehicles, add it under misc.
A first offense in California, 6-month term, mid-range provider: $100 install + 6 × $85 lease ($510) + 3 calibration visits at $25 ($75) + $75 removal = $760. Effective cost: $126.67 a month, or $4.17 a day — notice how far that sits above the "$2.75 a day" headline rate, because the bookends and service visits amortize into a short term.
Same provider over Arizona's 12-month term: $100 + $1,020 + 6 × $25 + $75 = $1,345, an effective $112.08 a month. Longer terms amortize the fixed fees, which is the one financial upside of a longer requirement — and a reason a violation that extends your term hurts twice.
Expect $60-$120 per month for the lease, with most drivers landing near $80-$90. Advertised teaser rates as low as $1.96/day exist, but real-world invoices cluster at $2.60-$4.00 per day once state-mandated monitoring and service fees are included. Add a $70-$150 installation, $20-$30 calibration visits every 30-60 days, and a $50-$100 removal at the end.
Roughly $610-$1,010, with a mid-range scenario around $760: $100 install + 6 months at $85 + three calibrations at $25 + $75 removal. That works out to an effective $126.67 per month — noticeably more than the advertised lease rate, which is why you should budget on the program total, not the monthly teaser.
Almost always you, the driver. The device, installation, monitoring, and removal are offender-paid costs in every state that mandates IIDs. Some states offer fee reductions or waivers for verified low-income participants — ask the court or monitoring authority, because the discount programs are rarely advertised by the providers themselves.
Usually yes, but it costs you: a $50-$100 removal from the old provider, a fresh installation fee at the new one, and in some states advance approval from your monitoring authority. Switching only makes sense if your current provider's service is genuinely broken or it stops supporting your area — the price differences between major providers rarely cover two fees.
Your device goes into a lockout or service-instrument countdown that can disable the car, and you'll pay a service visit fee on top of the missed calibration. Missed or skipped service appointments can also be reported to your monitoring authority as a violation, which in some states extends the requirement. If you can't make a scheduled visit, call the service center and reschedule before the deadline.