In the event the expenditure incurred by any district is less than the amount of State aid received, the district shall refund the unexpended State aid after the completion of the school year. These refunds shall be paid no later than by December 1. In any year, a district may submit a request for additional aid pursuant to P.L. 1977, c. 192 (C.18A:46A-1 et seq.). If the request is approved and funds are available from refunds received from school districts from the prior year, payments for the additional aid shall be made immediately from those funds.
N.J.S. § 18A:46A-14