# Bills and invoices > Understand the distinction between bills and invoices in Payabli. Invoices bring money in from customers, while bills represent vendor payables that send money out Bills are used for money out, and invoices are used for money in. Invoices are documents that you send to your customers, that you expect the customer to pay. Paid invoices bring money in. [Learn more about invoices](/guides/pay-in-developer-invoices-manage) Bills represent invoices from your vendors, that the vendors expect you to pay. Use managed payables with Payabli to turn those payouts to vendors into an income stream. Paid bills send money out. [Learn more about bills](/guides/pay-out-developer-bills-manage)