We're going to walk you through how to calculate accounts receivable in this guide. We'll demystify a myriad of different formulas and ratios you need to know.Receivable (AR) icon next to the contract. The accounts receivable turnover ratio reveals how well a company collects receivables from customers. All Accounts Receivable represent valid obligations arising from bona fide business transactions in the Ordinary Course of Business. It's the amount that customers owe you for goods or services that they purchase on credit.