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 application for an adjustment of overpayment of estimated income tax shall be filed on Form 4466. Fill-out and send in form and supporting documentation establishing your right to receive the property. You may be owed thousands of dollars, and you don't even know it. All across the state, Texans are receiving letters that say just that. The short answer is NO. The IRS will probably not notify you when you have overpaid your taxes or withheld too much from your paycheck.