In Canada, we have taxes that are defined based on the type of product we are selling, and our business does very little business outside of our province.

We are required to collect federal taxes on some products, provincial on others, and both on many. Items can be either PST or GST exempt, and are much more rarely exempt from both.

I don't see any way to associate a tax category with a product/item rather than with a customer. We only provide services local to us, so defining taxes based on the customer's location is of no use, and regardless, for any customer, the taxes will change based on the product we sell, even if there are exemptions from some taxes based on who or where the customer is.

Am I completely missing something, or does Zoho Books (and subscriptions, inventory, etc) completely lack a way to charge (and price out on our costs from vendors) taxes based on product categories?

This help document for Zoho Invoice describes a drop-down to select a specific tax for an item in Canada, but I see nothing like that in my Zoho Books instance. Is this help document describing a deprecated feature?

Has anyone found a solution using any custom fields, automation or integration or anything to be able to define a tax for an item or product and then have that tax automatically apply to that product when it is added to an invoice?

What about fort invoices generated by Zoho Subscriptions, where the "plan" and an "add on" to that plan might require different taxes, meaning the default of customer tax will never produce the correct result?