Selling an Inherited Home in Seattle, WA — 2026 Guide

Washington imposes a state estate tax (RCW 83.100) on estates exceeding approximately $2.193 million — one of the lowest state estate tax thresholds in the US, and far below the federal $13.99 million threshold. Washington’s estate tax rates reach 20% — the highest state estate tax rates in the US. Washington’s 7% CGET applies to inherited rental/investment property gains above $250,000/year after the stepped-up basis. Washington’s $100,000 small estate affidavit (RCW 11.62.010) is one of the highest limits in the US and can cover real property if the total estate is under $100,000. King County Superior Court Probate Division (516 Third Ave., Room W-325, Seattle) handles estate administration.

Washington State Estate Tax: What Seattle Heirs Need to Know

Washington imposes a state estate tax (RCW 83.100) on estates exceeding an inflation-indexed threshold — approximately $2.193 million in 2024 (adjusted annually). Washington’s estate tax rates range from 10% to 20% — the highest state estate tax rates in the US. For comparison, Minnesota’s top rate is 16%; Washington’s is 20%.

Washington estate tax threshold vs. federal: The federal estate tax threshold is $13.99 million in 2026. A Seattle estate worth $3 million owes no federal estate tax — but owes Washington state estate tax on approximately $807,000 above the $2.193 million threshold at Washington’s progressive rates.

Seattle median home and estate implications: Seattle’s median home price is $700,000 to $850,000. A homeowner who also has retirement accounts, investment accounts, and life insurance proceeds can easily exceed Washington’s $2.193 million estate tax threshold. This makes Washington’s estate tax a genuine concern for many Seattle homeowners’ heirs — not just the ultra-wealthy.

No inheritance tax: Washington has no inheritance tax (tax on the recipient). Only the estate tax (tax on the estate before distribution) applies.

Contrast with other markets: Minnesota ($3 million threshold, 16% top rate), Washington ($2.193 million threshold, 20% top rate). Texas, Nevada, Florida, North Carolina, Colorado, Arizona — no state estate tax.

Washington Capital Gains Excise Tax for Inherited Property

Washington’s 7% CGET (RCW 82.87) applies to long-term capital gains above $250,000/year. For inherited Seattle property, the federal stepped-up basis rule applies:

Basis steps up to fair market value at date of death. If a Seattle home was purchased for $200,000 in 1985 and was worth $800,000 at the owner’s death, the heir’s basis is $800,000. Selling immediately at $810,000 produces only $10,000 in gain — no CGET.

For inherited rental/investment property held for years: If the heir holds the inherited property as a rental for 5 years and then sells for $900,000 against a stepped-up basis of $800,000, the gain is $100,000. $100,000 is below the $250,000 CGET threshold — no CGET.

When CGET applies to heirs: If the heir already has $200,000 in capital gains from other investments in the same year and sells the inherited Seattle property with a $100,000 gain, their total capital gains are $300,000 — exceeding the $250,000 threshold. The excess $50,000 is subject to 7% CGET ($3,500).

Practical guidance: Coordinate the sale of an inherited Seattle property with your tax advisor to manage total capital gains in the year of sale relative to the $250,000 CGET threshold.

King County Probate: How It Works for Seattle Estates

King County Superior Court Probate Division is at the Maleng Regional Justice Center (where matters are filed for King County) — primary filing location: 516 Third Avenue, Room W-325, Seattle, WA 98104.

Washington Non-Intervention Will (RCW 11.68): Washington allows testators to grant the personal representative “non-intervention powers” in the will — the right to sell, manage, and distribute estate assets without court approval at each step. If the decedent’s will grants non-intervention powers, the personal representative can sell the Seattle home without going back to court. This significantly speeds the estate sale: 3 to 6 months vs. 12 to 18 months for a court-supervised sale.

Washington Small Estate Affidavit (RCW 11.62.010): For estates with total gross value of $100,000 or less (one of the highest limits in the US), heirs can collect all estate assets — including real property if total estate is under $100,000 — using a simple affidavit 40 days after death without any court proceeding. The affidavit must be signed under oath, list the estate assets, and be presented to the party holding the assets (or used to transfer real property at the county recorder).

Washington Community Property with Right of Survivorship (CPWROS, RCW 26.16.120): A special form of title that Washington spouses can elect — all community property designated as CPWROS automatically transfers to the surviving spouse at death without probate. If the Seattle home was held as CPWROS, the surviving spouse files a simple affidavit with the King County Recorder and takes clear title — no probate. Spouses can also execute a Community Property Agreement (CPA) under RCW 26.16.120 to convert all community property to CPWROS.

Timeline for Seattle probate with non-intervention powers: 4 to 9 months (faster than most states due to non-intervention powers). Without non-intervention powers: 12 to 18 months.

Why Seattle Heirs Often Sell Quickly

Washington REET on resale. When the heir eventually sells, Washington REET (1.10%–3.0%) applies as a seller cost. On a $750,000 home, REET = $8,655 regardless of when the heir sells. This is unavoidable — the motivation to minimize REET by selling quickly (when value is near the $525,000 breakpoint) vs. holding for appreciation (when value may cross into the 1.28% or 2.75% bracket) is a real planning consideration.

Seattle’s “leaky condo” problem. Seattle has a large inventory of pre-2000 condominiums with water intrusion and envelope failures — known as “leaky condos.” An inherited condo in a leaky building faces: pending special assessments ($30,000 to $100,000+), reduced marketability, and potential HOA litigation. Selling to a cash buyer eliminates the need to address these issues before sale.

Pacific Northwest moisture and mold. Seattle receives approximately 38 inches of rain annually. A vacant inherited home without active moisture management (dehumidification, proper ventilation) can develop mold within months. Mold remediation in Seattle: $5,000 to $30,000. Unlike Minneapolis’s pipe-freezing risk, Seattle’s inherited property risk is moisture accumulation rather than extreme cold.

Get a cash offer on your inherited Seattle home →

For the comprehensive nationwide guide to selling inherited property, see: How to Sell an Inherited House: Complete 2026 Guide →

For the full overview of Seattle fast-sale options, see: Sell My House Fast Seattle WA: Every Real Option in 2026