No state has ever introduced an income tax and kept the rate and threshold stable. Here's what history shows about rate creep, threshold creep, and where Washington's 9.9% tax is likely headed.
Washington, Oregon, and Nevada compared across income tax, capital gains, QSBS, estate tax, and business taxes. Nevada is cheapest; Washington protects QSBS and doesn't tax below $1M; Oregon taxes from dollar one.
Washington's 9.9% income tax adds a second layer to an already aggressive estate tax. GRATs, gifting, ILITs, and Roth conversions all need to be re-evaluated — and the pre-2028 window is the time to act.
Part-year residents face a two-part calculation: all income during the resident period, Washington-source only during the nonresident period. Timing your move around income events can save six or seven figures.
Washington's income tax takes effect Jan 1, 2028. The statute delegates estimated payment rules to DOR. Here's what we know, what to expect, and how to plan for quarterly payments starting in 2028.
Washington's new income tax allows a charitable deduction capped at $100K per individual ($100K combined for couples). Here are five strategies — DAFs, CRTs, QCDs, bunching, and appreciated stock — to maximize the benefit.
No special exemption exists for retirement income under Washington's new 9.9% tax. IRAs, 401(k)s, pensions, and Social Security all count toward the $1M threshold. The Roth conversion window before 2028 is the biggest planning opportunity.
Washington is no longer a zero-tax state, but it's still substantially cheaper than California for most founders and investors above $1 million. Here's a detailed comparison across rates, QSBS, capital gains, real estate, pass-throughs, and estate taxes.
