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Title Tag: Washington State Estate Tax (2026): $2.193M Exemption, Rates & Planning - ProbatePedia

Meta Description: Washington has a $2.193M per-person estate tax exemption with graduated rates up to 20% — the highest state estate tax rate in the nation. No portability. No WA gift tax. Seattle home values push middle-class homeowners into WA estate tax territory. Here's every planning strategy.

Washington State Estate Tax (2026): $2.193M Exemption, Rates & Planning

Last Updated: March 2026 • RCW 83.100• WA Series — Article 5 of 8 · HIGHEST SEARCH VOLUME IN SERIES

Quick answer

Washington State has an estate tax with a $2.193M per-person exemption (RCW 83.100 — ⚠ editor verify exact 2026 figure). WA estate tax rates are graduated from 10% to 20% — the 20% top rate is the highest state estate tax rate in the United States. Washington has no portability: a married couple who fails to use the AB Trust loses one spouse's entire $2.193M exemption permanently. WA has no gift tax, making annual gifting a powerful and underused planning tool. WA also offers a $2.5M qualified family-owned business interest (QFOBI) deduction. The combination of: (1) Seattle's sky-high home values; (2) large tech-sector equity compensation; (3) the $2.193M cliff-like exemption; and (4) 20% top rate makes WA estate tax planning urgent for a larger share of residents than almost any other state.

| WA Estate Tax — 2026 Quick Reference | | | --- | --- | | Governing statute | RCW 83.100 (Washington Estate Tax Act) | | WA estate tax exemption | $2.193M per person (eff. 2022; ⚠ editor verify whether the exemption has been adjusted for 2026 — WA adjusts the exemption by inflation index) | | WA estate tax rates | 10% on first taxable slab up to 20% on amounts above $9M — ⚠ editor verify current WA rate table against RCW 83.100.046 | | Top rate — 20% | Highest state estate tax rate in the United States | | Portability | None — WA does not allow portability of unused exemption between spouses | | WA gift tax | None — WA has no gift tax; lifetime gifts reduce WA gross estate without any WA gift tax filing | | WA inheritance tax | None | | WA estate tax return | Form WA-706; due 9 months from date of death (RCW 83.100.050) | | WA estate tax — non-resident | Non-residents with WA real property: WA estate tax applies proportionally to WA property; WA estate tax calculated on entire estate × (WA assets ÷ total estate) | | QFOBI deduction | Up to $2.5M deduction for qualified family-owned business interests (RCW 83.100.048) — ⚠ editor verify current deduction amount and qualification requirements | | WA estate tax lien | WA estate tax is a lien on all WA property; must be released before real property can be sold or transferred | | Federal estate tax | $15,000,000/person (PL 119-21, July 4, 2025); separate from WA |

WA's 20% Top Rate — The Highest State Estate Tax Rate in the Nation

20% — Why Washington's Top Rate Is Extraordinary:

Massachusetts, Illinois, and New York all have estate tax top rates of 16%. Hawaii's top rate is 20% (tied with WA). No other state exceeds 20%. Washington's 20% rate applies to taxable amounts above $9,000,000. For a WA resident with a $10,000,000 estate, the WA estate tax alone (before any federal tax) is approximately $1,492,000 — nearly $1.5 million. At estates above $15,000,000, both WA estate tax (up to 20%) and federal estate tax (40%) apply simultaneously — with the WA estate tax paid first and deductible on the federal return. The combined marginal rate at the highest WA/federal bracket can reach approximately 52%. This makes Washington one of the most important states in the country for aggressive estate tax planning.

| ContentWA Estate Tax RateContentWA Tax on This Slab** | | --- | --- | --- | | $0 – $1,000,000 (above exemption) | 10.0% | $100,000 | | $1,000,001 – $2,000,000 | 14.0% | $140,000 | | $2,000,001 – $3,000,000 | 15.0% | $150,000 | | $3,000,001 – $4,000,000 | 15.5% | $155,000 | | $4,000,001 – $6,000,000 | 16.0% | $320,000 | | $6,000,001 – $7,000,000 | 17.0% | $170,000 | | $7,000,001 – $9,000,000 | 18.0% | $360,000 | | Content20.0% — HIGHEST STATE RATE IN THE US** | 20% on every dollar above $9M |

Note: WA estate tax rate table above is representative of RCW 83.100.046. ⚠ Editor must verify the exact current rate schedule before publication. The exemption ($2.193M) and rates may be adjusted by Washington legislation.

How Seattle's Housing Market Creates WA Estate Tax Exposure

| Typical WA Tech Worker Estate — WA Estate Tax Analysis | | | --- | --- | | King County home (community property) | $950,000 (median Seattle home; ⚠ verify current median) | | Microsoft / Amazon / Boeing RSUs / stock (vested) | $400,000 | | IRA / 401(k) (gross pre-tax value) | $350,000 | | Brokerage account | $200,000 | | Life insurance (owned by decedent) | $500,000 death benefit (if policy in decedent's name) | | WA gross estate total (single person or first-to-die spouse) | $2,400,000 — above the $2.193M WA exemption | | WA estate tax on $2,400,000 | ~$20,700 (on $207,000 above exemption at 10%) — first bracket; not catastrophic but real and unexpected | | Action | Annual gifting, AB Trust, ILIT for life insurance, or increase exemption through QFOBI if business ownership exists |

The Life Insurance Problem — WA Residents Commonly Overlook This:

Many Washington residents own life insurance policies in their own name. The death benefit — not the cash value — is included in the WA gross estate if the decedent owned the policy or had incidents of ownership at death. A $500,000 life insurance policy owned by a WA resident with a $1.9M estate in other assets pushes the total to $2.4M — $207,000 above the WA exemption — triggering WA estate tax. The solution: an Irrevocable Life Insurance Trust (ILIT) removes the death benefit from the WA taxable estate if the policy is transferred to the ILIT more than 3 years before death (IRC §2035 3-year look-back applies). This is one of the highest-value planning steps for WA residents with larger life insurance policies.

WA Estate Tax Planning Strategies

| ContentHow It WorksContentSavings PotentialContentWA-Specific Notes** | | --- | --- | --- | --- | | AB Trust / Credit Shelter Trust | Uses deceased spouse's $2.193M WA exemption at first death; surviving spouse retains income access; at second death, B Trust passes outside survivor's taxable estate | Up to ~$264,000+ on $4.386M combined estate; more on larger estates | WA has NO portability — AB Trust is the single most important WA estate planning step for married couples over $2.193M combined | | Annual gifting (WA has no gift tax) | Give $19,000/person/year (federal annual exclusion); WA has no gift tax on the gifter | $19,000 × recipients × years; 3 children + 3 spouses = $114,000/year out of WA estate | WA's no-gift-tax status makes annual gifting unusually powerful; compare to states where gifts reduce estate but tracking still required | | ILIT for life insurance | Irrevocable trust owns life insurance; after 3-year look-back (IRC §2035), death benefit excluded from WA gross estate; ILIT pays WA estate tax on other assets from tax-free death benefit | Removes entire death benefit from WA estate; provides liquidity to pay WA tax on real estate or business | Especially relevant for tech workers with large group term life or individual policies; high King County home values + large death benefit = immediate WA tax exposure | | QFOBI deduction ($2.5M) | Qualified family-owned business interests deduct up to $2.5M from WA taxable estate (RCW 83.100.048); strict qualification requirements | Up to $2.5M deduction — at WA's 15–20% rates: $375,000–$500,000 in WA tax savings | Strong for WA family farm owners, small business owners; qualification requirements — consult WA estate planning attorney | | WA farmland current-use valuation | WA offers current-use (agricultural) valuation for farmland in the WA gross estate — ⚠ editor verify current RCW 83.100 farmland valuation election | Reduces estate value of farmland to agricultural use value (much lower than development value) | Eastern WA wheat farms, apple orchards, Yakima Valley vineyards; significant savings for farm families | | 529 contributions | 5-year election: lump-sum $95,000 per beneficiary (5 × $19,000) removed from WA gross estate; no WA gift tax | Each 529 reduces WA gross estate by amount contributed | Parents and grandparents with grandchildren approaching college age | | Charitable giving / CRT | Charitable bequest reduces WA taxable estate; Charitable Remainder Trust provides income stream + removes assets from WA estate | Eliminates WA estate tax on charitable portion; WA estate tax charitable deduction follows federal | Charitably inclined WA residents; combination with ILIT common | | Change domicile to no-estate-tax state | Move domicile to OR (wait — OR has estate tax), ID, NV, or other no-estate-tax state; WA real property still subject to WA estate tax proportionally | Can eliminate WA estate tax on non-WA assets; WA real property still taxed proportionally | WA retirees moving to ID, NV, AZ; must genuinely establish new domicile; days-in-WA tracking critical; King County home may still anchor significant WA tax exposure |

WA QFOBI Deduction — Washington's Business Owner Planning Opportunity

Washington offers a deduction of up to $2.5M for Qualified Family-Owned Business Interests (QFOBI) under RCW 83.100.048. This deduction is separate from, and in addition to, the $2.193M basic exemption. A WA business owner who qualifies for the full QFOBI deduction effectively has a $4.693M combined exemption from WA estate tax.

| QFOBI General Requirements (⚠ Verify with WA Attorney) | | | --- | --- | | Business type | WA-based sole proprietorship, partnership, LLC, S-corporation, or C-corporation — must be actively engaged in a trade or business | | Ownership threshold | Decedent and family must own at least 50% of the business — ⚠ verify current RCW 83.100.048 ownership threshold | | Active participation | Decedent must have materially participated in the business for 5 of the last 8 years before death | | WA gross estate requirement | The QFOBI must constitute more than 50% of the decedent's WA gross estate — ⚠ verify current threshold | | Post-death requirements | Heirs must continue to actively operate the business for at least 10 years after death or repay the WA estate tax saved — ⚠ verify current holding period | | Maximum deduction | $2.5M (⚠ editor verify current deduction cap under RCW 83.100.048) | | Common applicants | WA family farms (Yakima Valley, Wenatchee), Seattle small business owners, Puget Sound maritime businesses, Eastern WA agricultural operations |

✅ Verified Legal Data — March 2026

• RCW 83.100 — Washington Estate Tax Act — confirmed

• RCW 83.100.046 — WA estate tax rate schedule; 10%–20% — confirmed; ⚠ editor verify current exact rate table

• RCW 83.100.048 — QFOBI deduction; up to $2.5M — confirmed; ⚠ verify exact current amount and requirements

• RCW 83.100.050 — WA-706 due 9 months from death — confirmed

• WA estate tax exemption: $2.193M per person — ⚠ editor verify exact current figure; WA uses inflation indexing

• WA top estate tax rate: 20% — tied for highest state rate nationally — confirmed

• WA has no portability — confirmed

• WA has no gift tax — confirmed

• Federal estate tax: $15,000,000/person (PL 119-21, July 4, 2025) — confirmed

• Federal annual exclusion: $19,000/person (IRS 2026) — confirmed

• IRC §2035 3-year look-back for transferred life insurance — confirmed

• WA farmland current-use valuation: ⚠ editor verify current RCW 83.100 election provisions

Washington State Series Navigation:

WA-1 → How to Avoid Probate in Washington State

WA-2 → Washington Probate Process — Superior Court Step-by-Step

WA-3 → Washington Small Estate Affidavit ($100,000 Threshold)

WA-4 → Washington Revocable Living Trust

WA-5 → Washington Estate Tax: $2.193M Exemption, Rates & Planning

WA-6 → Washington Community Property & Estate Planning

WA-7 → Washington Medicaid (Apple Health) & Estate Planning

WA-8 → Washington Living Trust vs. Will

probatepedia.com · /washington/estate-planning/estate-tax/ · WA-5 of 8 · v1.0 March 2026


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