Washington State Taxes
Washington state tax planning, domicile and residency, and capital gains tax considerations.
Cliff Planning Before Washington's 2028 Income Tax: How to Use 2026 and 2027
2026 and 2027 are the last two years you can recognize income without Washington's 9.9% income tax. Here is how to use them.
Washington vs. California: Residency Safe Harbors Compared
Washington has a statutory 30-day safe harbor for domiciled residents who leave. California's safe harbor requires 546 consecutive days outside the state under an employment contract. Here's how they compare — and why the differences matter for founders and investors.
Big Private Company Gain in Washington? Your 2028 Planning Window Is Closing
If you hold pre-IPO stock or a large illiquid position, Washington's 9.9% income tax starts in 2028. Here's why your planning window is closing and what to do.
What Counts as Washington Taxable Income Under ESSB 6346?
A plain-English breakdown of what counts as taxable income under Washington's ESSB 6346 — wages, capital gains, QSBS, pass-through income, and more.
Washington’s Capital Gains Tax Charitable Deduction Has a Hidden Catch
Washington’s capital gains tax charitable deduction has a hidden limitation. Not all charities qualify—here’s what founders and high earners need to know.
When to Exercise Stock Options at a Startup: A Decision Framework
Exercise too early and you risk cash on a company that might fail. Wait too long and you face a crushing tax bill. Here's a framework for making the decision — including why Washington residents face a closing window before 2028.
The Alternative Minimum Tax and Stock Options: A Complete Guide for Washington Startup Employees
The AMT can create a six-figure tax bill on stock you can't sell. Here's how it works, what changed in 2026, and why Washington residents have a shrinking window to exercise ISOs before state income tax arrives in 2028.
RSUs and Washington State's New Taxes: What Seattle Tech Employees Need to Know
Washington's capital gains tax and new income tax create layered obligations for RSU holders. Here's how the taxes apply, where the traps are, and what Seattle tech employees can do about it.
Washington vs. California: A Tax Comparison for Founders and Investors
Washington vs. California tax comparison for founders and investors: income tax, capital gains, QSBS treatment, and why Washington's 2028 tax changes the calculus.