Sec. 403.076.  TAX REFUNDS.  (a)  The comptroller shall pay from available funds claims for refunds of state taxes for which a refund may not be claimed under Section 111.104, Tax Code.
(b)  The comptroller shall keep records of each transaction made under this section, showing:
(1)  the amount of the claim paid; 
(2)  the identity of the claimant; 
(3)  the purpose of the claim;  and
(4)  the fund or account against which the claim is to be charged.
(c)  For a tax for which no other law provides a period within which a refund claim must be made, a refund claim may not be made after four years from the latest date on which the tax could be paid without the imposition of a penalty or interest.  If the law does not provide for the imposition of a penalty or interest for a tax not paid within a specified period, a claim for a refund of the tax may not be made after four years from the date the return relating to the tax was due or, if applicable, a notice that the tax was due.
(d)  A person who fails to make a tax refund claim within the period provided by this section or other law waives any right to a refund of the tax paid.
(e)  The refund claim must be filed in writing with the agency that collects the tax for which the refund is claimed.  The claim must state the amount of the refund claimed and be accompanied by evidence sufficient to establish the grounds for and the amount of the refund.
(f)  If the refund is required by law to be made by an agency other than the agency that collects the tax for which the refund is claimed, the agency that collects the tax shall provide the agency making the refund with a copy of the refund claim and the accompanying evidence to establish the validity and amount of the refund.  The agency responsible for making the refund may not make a refund without receiving that evidence.
(g)  Before paying a refund under this section, the comptroller shall credit the amount due to the person claiming the refund against any other amount finally determined to be due to the state from the person according to information in the custody of the comptroller and shall refund the remainder.
(h)  This section does not apply to taxes paid under protest.
(i)  This section is not a waiver of sovereign immunity for a refund suit.  A person claiming a refund may not seek or obtain judicial review of a determination by the agency with which a refund claim is filed or by the agency having the responsibility to make a refund relating to the refund claim unless the legislature by resolution grants permission for a person to seek judicial review of the determination.
Acts 1987, 70th Leg., ch. 147, Sec. 1, eff. Sept. 1, 1987.  Amended by Acts 1989, 71st Leg., ch. 232, Sec. 21, eff. Sept. 1, 1989.