(a) If, at any time, the guardian of the estate has on hand money belonging to the ward in an amount that provides a return that is more than is necessary for the education, support, and maintenance of the ward and others the ward supports, if applicable, the guardian may lend the money for a reasonable interest rate.
(b) The guardian of the estate is considered to have obtained a reasonable interest rate for a loan for purposes of Subsection (a) if the interest rate is at least equal to 120 percent of the applicable short-term, midterm, or long-term interest rate under Section 7520, Internal Revenue Code of 1986, for the month during which the loan was made.
Official text of the Texas Estates Code as published by the Texas Legislative Council.