How Much Can You Go Over the Speed Limit in Texas?

In Texas, there is no legal cushion over a posted speed limit. Every mile per hour above the sign is technically a violation, so the popular idea that you can safely go 5 mph over, or that officers won’t write a ticket under a 10% margin, has no basis in state law. How much you can go over the speed limit in Texas is, legally speaking, zero. What changes with speed is not whether you’ve broken the law but how expensive, and how serious, the consequences get.

Why There Is No Legal Buffer

Texas uses a “prima facie” speed limit system. The posted number is presumed to be the fastest reasonable speed under normal conditions, and anything above it is treated as evidence you were driving unreasonably fast.¹ State enforcement rules reinforce this, defining posted limits as the “maximum permissible speeds under normal conditions.”²

There is one narrow opening. A driver can argue in court that a speed over the posted limit was still “reasonable and prudent” given the specific conditions at the time: wide visibility, dry roads, no traffic, a well-maintained highway. The burden is entirely on you, and judges are rarely persuaded, because the posted limit already accounts for favorable conditions. In practice this defense is more useful for fighting 3 mph over on an empty highway than 15 over on a suburban street.

When no sign is posted, Texas sets default limits by road type: 30 mph on urban streets, 15 mph in alleys and on beaches, 70 mph on numbered highways outside urban areas, and 60 mph on unnumbered rural highways.¹ Not seeing a sign is not a defense.

What a Speeding Ticket Costs in Texas

The number on the ticket includes the base fine plus mandatory state court costs and local fees. The statutory maximum base fine for a basic traffic offense is $200,³ but the total varies significantly by county.

In Harris County, total fines for going 1 to 10 mph over start at $135 and climb to $280 for 39 mph or more over.⁴ In Bexar County, 1 to 10 mph over costs $190, and 31 or more mph over runs $336.⁵ The same speed can cost $50 more or less depending on where you were pulled over.

No More Points, But the Ticket Still Follows You

Texas repealed its Driver Responsibility Program, and the Department of Public Safety no longer assesses points for moving violations. Convictions still appear on your driving record, and if you skip a ticket or miss a court date, DPS can block your license renewal until you clear it.⁶

Insurance Increases

The fine is the visible cost. The insurance hike is the one that quietly drains money for years. National data shows premiums rise roughly 24% on average after a single speeding ticket, and that increase typically sticks for about three years before easing. The exact percentage depends on your insurer, your prior record, and how far over the limit you were going. Even a modest 7% to 10% bump on a Texas policy running $1,500 to $2,000 a year adds up across three renewals.

Getting a Ticket Dismissed With Defensive Driving

Texas lets eligible drivers have a speeding ticket dismissed by completing a state-approved driving safety course. A dismissed ticket does not show up as a conviction, which is why this option is worth pursuing whenever you qualify.

To be eligible, you must meet all of the following:⁷

Plead no contest or guilty on or before the appearance date on your citation, and request the course at that time.
Hold a valid Texas driver’s license or permit (with an exception for active-duty military and their families).
Not have completed another driving safety course within the 12 months before the offense date.
Show proof of financial responsibility (auto liability insurance).

Some offenses disqualify you outright. You cannot use the defensive driving option if you were:⁷

Going 25 mph or more over the limit.
Going 95 mph or faster.
Speeding in a construction zone with workers present.
Holding a commercial driver’s license, or holding one at the time of the offense.

State-approved online courses typically run $25 to $60, plus certificate processing fees. That’s a small price compared to a conviction sitting on your record and pushing your premiums up for three years.

When Speeding Becomes Reckless Driving

Past a certain point, speeding stops being a traffic infraction and becomes a criminal charge. Texas defines reckless driving as operating a vehicle with deliberate or reckless disregard for the safety of people or property.⁸ No specific speed automatically triggers it; the charge depends on the whole picture, including road conditions, traffic, weather, and driving pattern.

Officers and prosecutors are far more likely to reach for reckless driving when speeds get extreme. Twenty-plus over on a busy road, or topping 90 mph in most conditions, puts you in that territory. A conviction is a misdemeanor carrying a fine of up to $200, up to 30 days in county jail, or both.⁸ The fine looks small; the criminal record is the real cost, appearing on background checks that employers and landlords run.

Construction and School Zones

Two zone types carry penalties severe enough to stand apart, and the “reasonable and prudent” defense offers no protection in either one.

Construction Zones

When workers are present, fines for any speeding violation double by law.⁵ In Houston’s fee schedule, a ticket for 20 to 29 mph over jumps from $265 to $430 when workers are on site.⁹ On top of the doubled fine, this violation makes you ineligible for defensive driving dismissal, so the conviction stays on your record.⁷

School Zones

School zones carry elevated fines whenever the reduced limit is active, usually indicated by flashing lights. In Harris County, school zone speeding fines run $25 higher per mph bracket than on a regular road.⁴ In Bexar County, any speeding violation in a school zone costs a flat $359 regardless of speed.⁵ Every Texas court treats school zone violations more seriously than the same speed elsewhere.

Rules for CDL Holders

If you hold a commercial driver’s license, the stakes climb sharply. Federal regulations classify speeding 15 mph or more over the posted limit as a “serious traffic violation” for commercial drivers.¹⁰ Multiple serious violations trigger mandatory disqualification:

A second serious violation within three years brings a 60-day disqualification from operating any commercial motor vehicle.¹⁰
A third serious violation within three years brings a 120-day disqualification.¹⁰

A 60- or 120-day loss of your CDL can end a career. And CDL holders are entirely barred from using the defensive driving course to dismiss a Texas speeding ticket,⁷ so every ticket counts.

Out-of-State Drivers

Driving through Texas on an out-of-state license does not shield you from consequences. Texas belongs to the Driver License Compact, an agreement among most U.S. states to share traffic conviction data. Under the compact’s “one driver, one license, one record” framework, Texas reports your conviction to your home state, and your home state applies its own rules to the offense. That can mean points, higher insurance rates, and even license suspension back home, all triggered by a Texas ticket.

1
State of Texas. Texas Transportation Code 545.352 – Prima Facie Speed Limits
2
Cornell Law School. 37 Texas Admin Code 3.24 – Speed Law Enforcement
3
Texas Public Law. Texas Transportation Code 542.401 – General Penalty
4
Harris County Justice Courts. Fines for Speeding Tickets
5
Bexar County, TX. Ticket Fine Schedule
6
Texas DPS. Driver Responsibility Program Surcharge Repeal FAQs
7
State of Texas. Texas Code of Criminal Procedure Art 45.0511 – Driving Safety Course Dismissal
8
State of Texas. Texas Transportation Code 545.401 – Reckless Driving
9
Houston Municipal Courts. Schedule of Fines
10
eCFR. 49 CFR 383.51 – Disqualification of Drivers