Washington Estate Tax Planning Attorney

Washington State is one of a dozen states that levies its own estate tax, separate from the federal estate tax. The threshold is dramatically lower — $2.193 million in 2026, versus $13.61 million federally. For Bellevue and the Seattle Eastside, where median home values exceed $1.4 million and tech compensation packages regularly include substantial RSU and 401(k) balances, the Washington estate tax catches families who would never owe federal estate tax. Proper planning can reduce or eliminate the state tax bill, but it must be done before death.

How Washington Estate Tax Works

Washington's estate tax is governed by RCW 83.100. The tax applies to the taxable estate of a Washington-domiciled decedent, which includes all real and personal property wherever located (with a credit for estate taxes paid to other states on out-of-state real property). The tax is calculated on the amount above the $2.193 million threshold, not on the entire estate.

The 2026 rate brackets are progressive:

Taxable Estate Above Threshold	Washington Estate Tax Rate
$0 – $1,000,000	10%
$1,000,001 – $2,000,000	11% – 13%
$2,000,001 – $3,000,000	14% – 15%
$3,000,001 – $5,000,000	16% – 17%
$5,000,001 – $7,500,000	18%
$7,500,001 – $10,000,000	19%
Above $10,000,000	20%

The threshold is indexed annually for inflation. The return (Form 501) is due nine months after death, with a six-month extension available.

Washington vs. Federal Estate Tax

The gap between the two systems is the central planning problem:

Feature	Washington Estate Tax	Federal Estate Tax
2026 exemption	$2.193 million	$13.61 million
Top rate	20%	40%
Portability between spouses	No	Yes
State gift tax	None	Gift tax applies (Form 709)
Marital deduction	Yes (citizen spouse)	Yes (citizen spouse; QDOT for non-citizen)
Charitable deduction	Yes	Yes

Because Washington has no portability, a surviving spouse cannot use the deceased spouse's unused exemption — making bypass trust planning essential for married couples, even though portability makes it less critical federally.

The Bypass (AB) Trust Strategy

The classic Washington estate tax planning tool for married couples is the credit-shelter or bypass trust (sometimes called an AB trust). At the first spouse's death, an amount equal to the Washington exemption ($2.193M in 2026) is placed in a bypass trust for the benefit of the surviving spouse. The remainder passes outright to the spouse or to a marital trust.

The bypass trust is not included in the surviving spouse's estate at their later death, even though the spouse can receive income and principal from it during life. This shelters $2.193M from Washington estate tax at the second death — saving up to roughly $438,000 in tax. For a couple with a $4.4M combined estate, the bypass trust can eliminate Washington estate tax entirely.

Key features of a Washington bypass trust:

• Surviving spouse receives income for life;
• Principal distributions permitted for health, education, maintenance, and support (HEMS standard);
• Trust assets pass to remainder beneficiaries (children) at the surviving spouse's death;
• Trust is not in the surviving spouse's taxable estate;
• Can be funded through a revocable living trust or a will.

Charitable Lead Annuity Trusts (CLATs)

A Charitable Lead Annuity Trust (CLAT) makes annual payments to a charity for a set term, then passes the remainder to non-charitable beneficiaries (typically children). For Washington estates that would otherwise owe tax, a CLAT can generate a charitable deduction that reduces the taxable estate below the $2.193M threshold, while still passing significant value to family. CLATs are particularly useful for Bellevue clients with philanthropic intent and estates in the $3M–$10M range.

The CLAT's remainder value is determined by the IRC §7520 rate at funding. When the rate is low, more value is projected to pass to charity up front, leaving less to family — but the actual outcome depends on investment performance exceeding the assumed rate.

Irrevocable Life Insurance Trusts (ILITs)

Life insurance proceeds are included in the taxable estate if the decedent owned the policy (RCW 83.100.020; mirror of IRC §2042). For a Bellevue family with a $1M life insurance policy, that alone can push an otherwise-exempt estate into tax. An irrevocable life insurance trust (ILIT) owns the policy instead, removing the death benefit from both the Washington and federal taxable estates.

The ILIT must be structured correctly: the grantor must not retain any incidents of ownership, premiums are paid through annual gift-tax-excluded contributions (Crummey powers), and the trust must be irrevocable. The ILIT is one of the most cost-effective Washington estate tax reduction tools because life insurance proceeds are large and otherwise fully taxable.

Lifetime Gifting Strategy

Washington has no state gift tax. This makes lifetime gifting a uniquely powerful strategy for Washington residents. Federal gift tax still applies (Form 709), but the federal annual exclusion ($19,000 per recipient in 2026) and the federal lifetime exemption ($13.61M) mean most Washington families can gift substantial assets without federal gift tax.

By gifting appreciating assets during life — Bellevue real estate, RSUs, index fund shares — the donor removes both the asset and all future appreciation from the taxable estate. For a family with a $3M estate, gifting $800,000 of appreciated stock over several years can pull the estate below the $2.193M threshold and eliminate Washington estate tax entirely.

Common gifting tools include:

• Annual exclusion gifts: $19,000 per recipient per year (2026), unlimited recipients;
• Tuition and medical payments: Direct payments to providers are excluded (IRC §2503(e)), no dollar limit;
• 529 plan superfunding: Five years of annual exclusions in one year ($95,000 per beneficiary);
• QPRT (Qualified Personal Residence Trust): Transfer a personal residence at a discounted gift value, retaining the right to live in it for a term of years.

Why Bellevue Families Are Especially Affected

Bellevue's real estate market is the primary driver. The median home value in Bellevue exceeds $1.4 million; in neighborhoods like Clyde Hill, Medina, and Yarrow Point, values routinely exceed $3 million. Add a $500,000 401(k), $300,000 in RSUs, a $500,000 life insurance policy, and $200,000 in savings, and a household with a comfortable but not extraordinary net worth reaches $3M — well above the $2.193M threshold.

Without planning, a $3M estate owes roughly $129,000 in Washington estate tax. A $5M estate owes roughly $469,000. With a bypass trust and an ILIT, both figures can be substantially reduced or eliminated.

When to Start Planning

Estate tax planning must be completed before death. Strategies like bypass trusts are implemented at the first spouse's death through pre-drafted trust terms, but the framework must be in place beforehand. Lifetime gifting, ILITs, and CLATs all require action while alive. Waiting until a terminal illness or after death forecloses most options.

For Bellevue and Seattle Eastside families with net worth approaching or above $2 million, a Washington estate tax planning consultation should happen as early as possible — ideally when buying a first home, receiving a first RSU grant, or updating an existing estate plan.

Frequently Asked Questions