Discover free printable invoice templates in Excel and Word to efficiently create and manage your business billing. Click for other types of formats.Download a free and fully customizable GST bill format to invoice your customers - create and send a GST tax invoice in moments in Word, Excel and PDF. A small business needs to generate different types of invoices owing to various factors. Let's check different types of invoices with example and format. Send your customized invoices via email or print them out. Save your templates so that you can edit each one and change it as necessary. Free Printable Invoice. To create a free invoice, just fill out the template below. Customize free invoice templates from Canva and impress clients with a beautiful, on-brand invoice.