You don't work for free. In addition to all the other tasks that the sigerTax property tax software makes more efficient, sigerTax can help with invoicing your customers as well. Typically you would create an invoice for a client, add line-items to the invoice, and mail it out. This always leaves the questions "Has everything been invoiced? Did I forget anything?" Through sigerTax, the line items (Invoice Items) are created as individual pieces which are then used to calculate and create invoices. This allows you to view the possible billable items and then decide what to include on your invoices. We also offer an even more powerful tool to be used in the creation of Invoice Items - Invoice Terms.