Sales accounting for a small business accounting purposes can be either a manual list of the sales invoices or by using a spreadsheet package a list can be made on a bookkeeping spreadsheet. Using a spreadsheet for the bookkeeping has advantages as simple formula can be used to add up the column totals. The essential information to enter for a sales invoice would be the date of the sale, name of the customer, sales invoice number if applicable and optional a brief description of the item sold. In the next column would be the total sales invoice amount. If items like value added tax are required to be accounted for then an additional column would be required to accommodate the vat or sales tax accounting.