Nope. The lowest is just shy of 2% effective. Technically moving from 4% to 2% halves the taxes. I am not sure if it is worth the hassle to do. On another hand moving from 10% (effective) to 2%? Worth it. The problem is: how much of these 8% is me alone? (about half of it) Logistics involved with moving is a bit more complex than just moving things. Research indexes don’t matter as much unless you are running very expensive research jobs.
Added? It was here for a very long time. They just been adjusted for a first time in a very long time. CCP introduced potent isk faucets and turned to industry for isk sink.