The present invention is a method and system of automatically tracking and balancing account receivable data transmitted to a processing entity by a service provider. A service provider submits to a processing entity a billing data file. The billing data file includes the service provider's customer account records which represent the service provider's accounts receivable. The processing entity tracks the accounts receivable data transmitted by the service provider and processed by the processing entity by separating individual customer account records into tracking data sets based on pre-defined criteria. To ensure that the processing entity has properly tracked all the accounts receivable submitted to and processed by the processing entity, the processing entity computes the total amount of accounts receivable located in each tracking data set related to a given service provider. The invention further comprises comparing the total amount of pre-processed accounts receivable related to a given service provider, to the total amount of processed accounts receivable related to the service provider. When the comparison reveals a discrepancy between total pre-processed and processed accounts receivable, the processing entity creates a discrepancy report. The discrepancy report is routed to the processing entity's personnel alerting them that an error has occurred. If there is not discrepancy, a settlement report is created which list the total about of accounts receivable located in the tracking data sets of the processing entity.