taxugee
Tax + refugee. Someone purposefully moving from a high-tax location to a low-tax location, e.g. from Boston, Taxachusetts, to Live-Free-Then-Die New Hampshire, where there's no personal income tax nor sales tax.
That apartment building in Vancouver, Washington, is full of taxugees. Paying no income tax in Washington state, they shop across the river in Portland Oregon where there's no sales tax either.