You can clearly explain the purpose for which you are billing your client. A self-employed invoice adds clarity to the billing process.Some of the uses of this invoice include: What Is a Self-Employed Invoice Used for?Ī self-employed invoice is useful for your client as well as yourself. A self-employed invoice is a perfect solution to the issue as it provides details on what the client owes you. You need a proper billing method through which your client can know how much you are billing them and for what service/project. If the invoice is unfair to you, it can lead to financial losses that you won’t find out about till it is too late (or never). If the invoice is unfair to your client, it can lead to a drift with your client and make you lose business. However, improper billing methods can be a nuisance to handle. Therefore, you have to handle the finances as well, including billing your clients. As a self-employed person, you probably manage and run your own business.