The Compiere product import seems to do just about everything, except importing the tax category. I'm sure this has come up before. Any workarounds?
Just a sugguestion you will have to test...
Make your default tax category the one you wish to use, the import should use that.
Otherwise if you have multiple tax categories, use Product category or other common field and query to update your products based on category, once imported using query tool. eg. squirrel