[header] How to make an invoice [title] Include your business name. [step] This basic information about your company should appear in professional lettering at the top of the page. If you're using word processing software, create a new document and select " header " from the drop down menu to create a header; otherwise, simply type your company's name and center it at the top of the page. 
[substeps] If you don't have a business name, type your first and last name. You may also include your middle initial if desired.