TaxCycle comes with built-in templates for all its tax modules. You can use these templates as a basis for creating your own templates. They cannot be deleted and you can always revert to these templates.
You can find most of these these in the Prepare sidebar, under the Correspondence section (see image on right).
Each tax module has its own set of default templates that look at the data in the client tax return and to customize the message for each client. These include the templates for letters, emails, invoices and labels.
Even if you never edit a template, you can use these built-in templates. And, you can add your signature and logo to them, by pointing to them in Options. Read the Signature and logo help topic to learn how to do this.
You can also personalize any piece of correspondence to just one client. Read the Personalizing a letter help topic to learn how to do this.