Texas Family Code - FAM § 154.131. Retroactive Child Support

(a) The child support guidelines are intended to guide the court in determining the amount of retroactive child support, if any, to be ordered.

(b) In ordering retroactive child support, the court shall consider the net resources of the obligor during the relevant time period and whether:

(c) It is presumed that a court order limiting the amount of retroactive child support to an amount that does not exceed the total amount of support that would have been due for the four years preceding the date the petition seeking support was filed is reasonable and in the best interest of the child.

(d) The presumption created under this section may be rebutted by evidence that the obligor:

(e) An order under this section limiting the amount of retroactive support does not constitute a variance from the guidelines requiring the court to make specific findings under Section 154.130.

(f) Notwithstanding any other provision of this subtitle, the court retains jurisdiction to render an order for retroactive child support in a suit if a petition requesting retroactive child support is filed not later than the fourth anniversary of the date of the child's 18th birthday.