The state constitution does not forbid an income tax. We both know it is more nuanced than that. Don't accuse me of bad faith in the same comment that you present an inaccuracy in the form of simplification that suits your argument
Neither the state nor any county, city, or other local jurisdiction in the state of Washington may tax any individual person on any form of personal income. For the purposes of this chapter, "income" has the same meaning as "gross income" in 26 U.S.C. Sec. 61.
Gross income defined
(a) General definition
Except as otherwise provided in this subtitle, gross income means all income from whatever source derived, including (but not limited to) the following items:
(1) Compensation for services, including fees, commissions, fringe benefits, and similar items;
(2) Gross income derived from business;
(3) Gains derived from dealings in property;
(4) Interest;
(5) Rents;
(6) Royalties;
(7) Dividends;
(8) Annuities;
(9) Income from life insurance and endowment contracts;
(10) Pensions;
(11) Income from discharge of indebtedness;
(12) Distributive share of partnership gross income;
(13) Income in respect of a decedent; and
(14) Income from an interest in an estate or trust.
