FAQ Q304: Can each resource and product have a different sales tax (VAT) rate?

Yes, you can configure a different tax rate for each of your products and resources.

In case of additional products, the tax rate must be always specified for each product individually. The same happens with custom reservation products where you can add custom (not pre-defined) items to a reservation.

In case of resources, there's a global tax rate which you can set in Site Settings / Company Info. If you want to set a different tax rate for a specific resource, you'll first need to add a custom resource property of type Tax rate for rentals. Once the custom resource property is added, you can to set its value (only for the resources which should have a different tax rate than the global one).