Texas Ignition Interlock Cost Calculator 2026

Texas does not require an ignition interlock after a first DWI conviction, so there is no first-offense device cost to add up. Change the offense level below to price a second or third offense.

Data verified May 2026

Texas DWI Cost Calculator

Enter your case details for a state-specific cost estimate.

Some states require a device on every vehicle you drive, which can mean more than one. The rule varies by state, so choose how many vehicles to price.

Your Texas DWI estimate will appear here

Answer the questions and press the button. You will get a low, typical and high figure, with each cost listed on its own line.

  • Uses this state's own fines, suspension and interlock rules
  • Market costs such as attorney fees are labelled as estimates
  • Free, and nothing to sign up for

Texas DWI FAQ

How much does a DWI cost in Texas?

Attorney fees for a first-offense DWI in Texas typically run $1,500 to $7,500 on our estimates, and the fine is $0 to $2,000 before court costs. Adding insurance, interlock, education, reinstatement and lost time from work, our calculator puts a typical first offense at about $23,698 (range $11,586 to $39,085) with its default answers; the median of our 50 state estimates is $17,615.

How long is your license suspended for a first DWI in Texas?

A first-offense DWI conviction in Texas carries a license suspension of 1 year (365 days). A hardship or restricted license may be available during this period.

Is an ignition interlock device required in Texas for a first DWI?

Our Texas data shows no interlock requirement for a first-offense DWI.

How long is SR-22 insurance required after a DWI in Texas?

Texas requires SR-22 high-risk insurance filing for 2 years following a DWI conviction.

Can a DWI be expunged in Texas?

Texas does not allow DWI convictions to be expunged. Some states have other ways to limit who can see a record, such as sealing, which this site does not cover yet.

Texas DWI figures this calculator uses

Ignition interlock, first offense
None
Ignition interlock, second offense
12 months
Ignition interlock, third offense
12 months
Required for every offense
No
Typical monthly lease and monitoring (estimate)
$80

Statutory figures were checked against Texas law (primary source) and last verified May 2026. Typical ranges are market estimates, not law; see our methodology.

Worked example

With the calculator's default answers (offense number: First offense; number of vehicles you own: 1 vehicle):

Texas does not require an ignition interlock device after a first DWI conviction, so there is no device cost to estimate. A second DWI conviction carries a 12-month interlock requirement.

Change the answers in the calculator above to see your own estimate.

On our estimates, a typical first-offense DWI in Texas comes to about $23,698, the 8th highest of the 50 states. The median of our 50 state estimates is $17,615. These come from the total-cost calculator with its default answers, not from a national survey.

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