Accounts receivable formula is a business tool that allows you to measure the total amount of money owed to your company by its customers. This formula can be used to monitor customer activity and cash flow, as well as identify potential areas for improvement. To calculate accounts receivable formula, you simply take the total amount of invoices outstanding plus any other amounts due from customers, and subtract the total payments received during a given period. Doing this will give you the total amount owed to your company by its customers, which can then be compared to other metrics in order to analyze overall performance.