The Tax Office holds unclaimed property tax overpayments made within the last three years and outstanding (uncashed) refund checks. To apply for a tax refund, the taxpayer or representative must complete Sections 1 through 5 of this application.Download Form 00-957-Texas Claim for Refund (PDF); identify the period during which the claimed overpayment was made; and. Provide the reason for this refund. Please check one of the following and state reason: Overpaid the account (explain: ). You get an overpayment credit when your tax payments exceed what you owe. State Tax Recovery Services Could you be due a credit on your Texas sales and use taxes? Texas Tax Group can find out and help you get back overpaid taxes. The District Clerk's Office accepts the following forms of Payment: 1. Cash Bring your cash payments to the Civil Courthouse.