The West Valley city of about 85,000 is attracting some of the biggest corporate names on the planet – names like Amazon, Microsoft and Nike.

Famous for treating its own citizens to crippling tax burdens, California has taken on a new hobby: trying to impose its high state taxes on individuals in other states as well. The state of Arizona is asking the U.S. Supreme ...

The good news is it appears all parties want to see this happen because everyone has something to gain: revenue for government; fairness and simplification for taxpayers. That said, massive reform should be done methodically to avoid litigation and avoidable mistakes.