Refund procedure: administrative-approval refunds must be issued promptly; interest computed until refund signature and monthly reporting required. Directives require that refunds needing administrative approval be issued within thirty days of determination; interest on refunds be calculated up to the date of the assessing officer's signature when granting refunds; monthly reporting of refunds issued, pending refunds and interest paid must be submitted as per the prescribed proforma; and returns with refundable amounts must be processed first to minimise interest liability.