First, you need to ensure the Product/Service you’ve selected from the Catalog is set up to charge a sales tax. Navigate to the My Company section of the Sitemap -> Catalog -> View Catalog. Each Catalog Item has a field titled ‘Charge Sales Tax?’. Simply set this field to ‘Yes’ for the appropriate Product/Service(s).
Note: Yardbook still needs to know what the local tax rate is for these items. Be sure that you have set up your Company’s local tax rates (Sitemap -> Company Profile -> Settings -> Set Up Sales Tax Rate) and that the Customer has been assigned the appropriate rate. You can assign a Customer a tax rate by navigating to their Customer Details Page, clicking the blue ‘Edit’ button, and scrolling down to the ‘Tax Rate’ field. (Note: You must have enabled ‘Show More’ Mode).
If you have not created any local tax rates, you can also edit the default tax value for any given Product/Service. Simply go to the Product/Service and edit the ‘Tax%’ field if/as needed. Note: if the Customer has already been assigned a tax rate, it will override the default tax rate in the Catalog.