Illinois and your home state of Texas are both members of the Drivers License Compact (DLC) so if you plead guilty and were convicted of the speeding violation for 20 mph over the limit then the TX Department of Public Safety (DPS) will be notified.

According to the Texas Department of Public Safety they will place out of state offenses onto your TX driving record. The Texas points system lists that it is 2 points for a moving violation conviction in Texas or that in another state. Points however are not assigned for speeding less than 10% over the posted limit or for seat belt convictions.

Texas law requires rates for insurance offered in Texas to be reasonable, adequate, not excessive to the risks for which they apply, and not unfairly discriminatory according to the Texas Department of Insurance (TDI). Auto insurance companies in Texas set their own rates and then file them with TDI for review.

Since the IL speeding infraction will be placed on your TX driving record your insurance company will see it the next time they pull your MVR. To find out if this Illinois speeding ticket will affect your rates you would need to find out about your specific insurance company's rating system. Usually you can find out about a rating system by asking your agent or the TX TDI since the insurance provider's rates are filed with this state agency.