Interest on delayed compounding charges accrues at ascending monthly rates for successive periods of delay. Interest on delayed deposit of compounding charges: where payment is extended beyond one month from the month of intimation, the applicant remains liable for interest on the unpaid compounding amount; interest accrues at a lower monthly rate for an initial delay period and at an increased monthly rate for delay beyond that period, applied to the unpaid amount on a per month or part of a month basis.