Before adding taxes to the prices make sure 'All taxes are included in my prices' option is enabled in merchant settings.
To add a tax to an item:
- Sign in to your account on the web as an administrator,
- enable 'All taxes are included in my prices' option,
- in the main menu, select Products,
- in the products list, select a product you wish to edit or create a new product,
- click on the EDIT button in the product details page on the right,
- scroll down to the TAXES section,
- move slider to the right to add tax:
- click SAVE to save changes,
- Re-enter the application on your mobile devices to synchronize your app data with the server.
Note: VAT changes will now be applied for all future invoices (invoices issued prior to change won't be affected).