Billing clerks keep records, calculate charges, and maintain files of payments made for goods and services.

Billing clerks prepare bills and invoices. They calculate what a customer owes using calculators or computers.

Billing clerks work for many organizations, including:

• Hospitals
• Law firms
• Department stores

Billing clerks review purchase orders, bills of lading, sales tickets, hospital records, or charge slips to determine the amount owed. They prepare the statements, bills, or invoices that are used for billing and recordkeeping.

As payments are received, billing clerks credit customers' accounts. They use machines to sort transaction documents such as checks. Clerks also contact customers about their accounts. 

When customers have complaints about their bills, their calls or letters are forwarded to billing clerks. Clerks investigate customers' complaints and resolve the problems. They may also write reports about the status of some or all accounts for managers.