I had this problem on my own several times, and I found a couple of hacking methods, but today I think I finally found the “right” solution.
If you look at layout / sales.xml, you will find several nodes that contain a block called order_totals , and inside it is a block called tax . This is what is responsible for this line appearing in your PDF file.
I would suggest the “right” way to remove it, and then add this to your layout / local.xml file:
<sales_order_printinvoice> <reference name="order_totals"> <remove name="tax"/> </reference> </sales_order_printinvoice>
(If you do not have a layout / local.xml file, just create one.)
This removes it from the printout of the invoice, which is mentioned in the question. To remove it from other places, make sure you have the correct node name - for example, to remove it from the order listing available to the client from the order history, use this:
<sales_order_print> <reference name="order_totals"> <remove name="tax"/> </reference> </sales_order_print>
... etc. for letters, etc. Just look in layout / sales.xml for each _totals occurrence to see all affected nodes.
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