A method, program product and system for interim allocation of excess funds in a control operating account in an intermediary bank prior to actual distribution to aggregated accounts, the method comprising: (a) monitoring the control operating account during an interim period prior to the distribution to determine for each of a plurality of the clients whether the funds held in the control operating account by that client exceeds a predetermined amount; (b) reallocating, for at least one of the clients that has been determined to have an amount of funds that exceed the predetermined amount in the control operating account, the amount of the funds listed in an electronic database for the one client in the control operating account by at least a second amount to reduce the funds held in the control operating account by the one client to at or below the predetermined amount; (c) allocating at least funds equal to or in excess of the second amount from the one or more destination aggregated accounts of the respective different deposit institutions to or among one or more eligible clients in the control operating account; and (d) distributing or having distributed to the one or more destination aggregated accounts in the different deposit institutions the funds in the control operating account.