What This Calculator Screens For in WashingtonA triage screen, not a tax return
For Washington estates, the first triage question is whether the taxable estate exceeds the state's $3,000,000 exemption. An estate above that amount can owe Washington estate tax even when it is below the federal threshold, so this tool screens for both the state and the federal exposure.
Probate questions and estate-tax questions are not the same thing. A family can have a probate problem with no tax issue, or a tax-sensitive estate that still transfers efficiently through trust planning.
What the screen looks atState estate-tax status, the federal threshold, and return context
Washington State Estate Tax Applies
Washington imposes its own state estate tax with a $3,000,000 exemption, separate from the federal estate tax. This tool screens both the state and the federal exposure.
Federal Threshold
The current screen uses a federal estate-tax exclusion amount of $15 million per person for 2026.
Return Context
Even when no tax is likely due, larger estates may still need more careful return and planning review than a rough calculator can provide.
Frequently Asked Questions
Does Washington have a state estate tax?
What federal threshold does this Washington calculator use?
Does every large estate owe federal estate tax?
Is this the same as preparing Form 706?
Official Sources and Further ReadingOfficial references used for this page
- Estate and transfer tax act definitions, including the applicable exclusion amount
- Estate tax imposed; amount of tax (the three rate tables)
- Washington estate tax returns; filing dates; extensions; the spousal residence exemption
- Washington estate tax; interest and late-filing penalty
- 2026 Washington Session Laws chapter 209, as enacted (undid part of the 2025 estate tax changes)
- 2025 Washington Session Laws chapter 421, as enacted (raised the exclusion to $3,000,000 and raised the rates)
- Washington Department of Revenue, Estate tax
- Real estate excise tax; tax on sale of property (the graduated state rate)
- IRS estate and gift tax overview
- IRS estate tax filing threshold table
- IRS About Form 706
- IRS Publication 559 for survivors, executors, and administrators
Information current as of May 31, 2026
Settled Estate is not a law firm, and this content is for informational purposes only and does not constitute legal advice. Probate laws and procedures in Washington can change. Consult with a qualified attorney for advice specific to your situation. Full disclaimer.