It sounds like you're in Europe? They require invoices for everything there. If you're in the U.S. though...you need to find a new accountant. You don't need t

It sounds like you're in Europe? They require invoices for everything there. If you're in the U.S. though...you need to find a new accountant. You don't need to invoice every transaction. It certainly is advisable, for accounting/auditing purposes (much easier to track and verify income), but it's not mandated.