When you need to edit one or two documents, you can opt for Word Online instead ... price, tax information, etc., without any issue. Download Invoice template from templates.office.com.

To generate an invoice, you just create a new document using the template ... AutoSum, Word will insert the function { =SUM(ABOVE) }. Should you wish to add a calculation for sales tax or VAT ...

Office features more than 100 online invoice templates that copy to a Word document. The Word command ribbon plus the Table Tools ribbon help update the style, color, alignment and other layout ...

MS Word 2007's invoice templates come in a variety of styles and formats to suit your needs. Click on the Office button, and then click on "New" to create a document that will contain your invoice.