Texas Government Code - GOV'T § 854.309. Refund at Annuity Discontinuance

(a) Except as provided by Subsection (b), if a disability retirement annuity is discontinued under Section 854.307 or the right to an annuity revoked under Section 854.306(b), the retiree is entitled to a lump-sum payment in an amount, if any, by which the amount in the retiree's individual account at the time of disability retirement exceeds the amount of current service annuity payments made before the date the annuity was discontinued or the right to an annuity revoked.

(b) The benefit provided by this section is not payable to a retiree who resumes employment with a participating subdivision or otherwise becomes gainfully employed.

(c) The benefit provided by this section is payable from the benefit accumulation fund.