The interlock fee for a restricted license in Texas is only $10 at the state counter, but that’s the smallest piece of the bill. Between the $10 Department of Public Safety license fee, a $125 reinstatement fee in most DWI cases, private vendor charges of roughly $70 to $100 per month, and mandatory SR-22 insurance, drivers typically spend $1,100 to $1,600 in hard costs over a 12-month interlock period. Add the insurance premium increase and the real total usually lands above $2,000.
What You Pay the State
The restricted interlock license itself costs $10 from DPS, the same price as an occupational driver license. If your suspension runs longer than a year, you renew annually at the same rate.1State of Texas. Texas Transportation Code 521.248 – License Fees
The bigger state charge is the reinstatement fee. For an Administrative License Revocation, where your license was suspended after you refused or failed a breath or blood test, DPS charges $125. You have to pay all outstanding reinstatement fees in full before DPS will issue any restricted license.2Department of Public Safety. Section 7: Reinstatement Fees and Special Licenses
You can pay the $10 license fee online through the DPS License Eligibility page or by mailing a check or money order. DPS won’t mail the physical license, though, until your suspension clears. If your underlying license is expired, DPS sends a letter directing you to a local driver license office to renew before the restricted license can be issued.3Department of Public Safety. Section 18: Interlock
If the magistrate ordered interlock as a condition of bond, the county can also charge a monthly monitoring reimbursement fee of up to $10, set locally.4State of Texas. Texas Code of Criminal Procedure Art. 17.441 – Conditions Requiring Motor Vehicle Ignition Interlock
What You Pay the Device Vendor
Every court-ordered installation has to be done by a DPS-certified service center, but the device itself is a private-market product with no state price cap.5Department of Public Safety. Ignition Interlock Devices Typical ranges look like this:
- Installation: $75 to $150. Push-to-start vehicles tend to land at the higher end because of the extra wiring.
- Monthly monitoring and lease: $70 to $100. This covers the hardware rental, data downloads at each calibration visit, and transmission of your breath-test logs to the monitoring authority.
- Optional device insurance: $5 to $10 per month to cover theft or accidental damage.
- Removal: $50 to $100 when the court order expires.
Because these are private charges, comparing quotes across certified providers is one of the few real ways to cut your bill. Watch the full-term price, not just the monthly rate. Some vendors advertise a lower monthly fee and recover the difference at installation.
SR-22 Insurance Is the Hidden Cost
Most drivers with a DWI-related license action also have to file an SR-22 certificate of financial responsibility with DPS. The SR-22 isn’t a separate policy. It’s a form your insurer files with the state proving you carry at least the Texas minimum liability coverage: $30,000 for injury or death of one person, $60,000 for two or more people, and $25,000 for property damage.6Department of Public Safety. Financial Responsibility Insurance Certificate (SR-22)
You must maintain the SR-22 for two years from the date of your conviction. If the coverage lapses for any reason, your insurer is required to notify DPS, and both your driving privileges and your vehicle registration can be suspended. Reinstating after an SR-22 lapse carries its own $100 reinstatement fee on top of whatever else you owe.6Department of Public Safety. Financial Responsibility Insurance Certificate (SR-22)
The premium increase varies widely by driver, history, and insurer, but expect auto insurance costs to rise substantially for the full two-year filing period. For many drivers this is the single largest expense tied to the interlock requirement, and it outlasts the device itself.
Adding It Up for One Year
For a 12-month interlock period, the hard costs come out roughly like this:
- Restricted interlock license: $10
- DPS reinstatement fee (ALR): $125
- Device installation: $75 to $150
- Monthly monitoring for 12 months: $840 to $1,200
- Device removal: $50 to $100
Baseline total: $1,100 to $1,585 before insurance. Factor in the SR-22 premium increase and most drivers end up spending $1,500 to $2,500 or more over the year.
A second year of interlock doubles the monitoring and insurance line items. Drivers convicted of a second or subsequent DWI within five years face a mandatory interlock period that extends through the first anniversary after their suspension ends, which commonly means two or more years of these costs.7State of Texas. Texas Penal Code 49.09 – Enhanced Offenses and Penalties
If You Cannot Afford the Device
Texas law gives the court authority to spread payments out. If the judge finds you’re unable to pay for the device, the court can set up a payment schedule covering up to twice the length of the interlock order. A one-year order can be paid out over two years.8State of Texas. Texas Transportation Code 521.246 – Ignition Interlock Device Requirement
For repeat DWI offenders required to install interlock under Penal Code Section 49.09, the court has similar authority to impose a reasonable payment schedule.7State of Texas. Texas Penal Code 49.09 – Enhanced Offenses and Penalties Neither provision reduces the total bill. They just stretch it. Raise the issue with your attorney before the hearing, because the judge has to make the inability-to-pay finding on the record for the schedule to apply.
You Do Not Have to Install One on Every Vehicle
The requirement attaches to every vehicle you own or operate, with one practical exception. If your job requires you to drive a vehicle owned by your employer, you can operate that vehicle without an interlock as long as the employer isn’t a business you own or control, the employer has been notified of your driving restriction, and proof of that notification stays in the vehicle at all times.8State of Texas. Texas Transportation Code 521.246 – Ignition Interlock Device Requirement The exception only works if the paperwork is actually in the vehicle while you’re driving it.