Texas has a child support formula to determine the amount the state “presumes” is in the child’s best interest. Child support in Texas is determined by figuring out the average net monthly resources of the noncustodial parent and applying guidelines established by the Texas legislature that require paying a percentage of those average net monthly resources in child support depending on how many children there are. The percentages are slightly different if the paying parent has a legal responsibility to also pay for other children who are not involved in the parents’ current suit. There is a cap on the maximum amount of Texas guideline child support. Effective September 1, 2019, the new net resources “cap” has been set at $9,200 per month.