Texas uses statutory guidelines based primarily on the paying parent’s net income and the number of children involved. Standard guideline percentages generally start at 20% of net resources for one child, increasing incrementally for additional children, though courts can deviate from guidelines based on each family’s specific circumstances.
Texas allows modification when there’s been a material and substantial change in circumstances such as a significant change in either parent’s income, a change in the child’s needs, or a change in the custody arrangement or when three years have passed and the amount owed differs significantly from current guidelines.
