All sums of mon­ey received under this Sec­tion shall be deposit­ed in a spe­cial fund with the prin­ci­pal and inter­est invest­ed as autho­rized by 55 ILCS 5/3–10009 and 5/3–10002.  No pay­ment shall be made from the fund except by order of the court declar­ing a sale in error under 35 ILCS 200/21–310.  Any monies accu­mu­lat­ed in the fund in excess of Five Hun­dred Thou­sand Dol­lars ($500,000.00) by the­Coun­tyTrea­sur­er shall be paid to the Gen­er­al Fund ofU­nion­Coun­ty pri­or to the com­mence­ment of the annu­al tax sale.