In ERPNext POS, some customers with Unregistered type should not have tax applied, while customers with Registered Regular type should have tax applied.
How can I set this up, since tax can also be set item-wise?
If you want to do invoice by invoice just change the Sales Taxes and Charges Template in each invoice
If you want to do customer-wise create two customer goups - registered and unregistered then apply a tax rule to each by filtering on customer group
There are probably other combinations/ways to do this
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