Seattle 1031: navigating Washington's 7% capital-gains tax

Market overview

Seattle and the Puget Sound region represent a rapidly maturing Section 1031 exchange market shaped by the technology industry's extraordinary impact on commercial real estate values. Amazon, Microsoft, and the broader tech ecosystem have driven demand for mixed-use, office, and logistics assets that appreciated substantially between 2015 and 2022. Long-tenured Seattle property owners now face capital-gains exposure amplified by Washington State's 7% capital-gains tax on gains above the annual threshold, which was upheld by the Washington Supreme Court in 2023 and applies to gains on sales of financial assets, with evolving case law around real property sales. The 1031 exchange has taken on heightened importance for Seattle commercial sellers who seek to defer both the federal capital-gains tax and this state-level levy.

Typical investor profile

Seattle 1031 investors often include tech-sector employees aged 45 to 65 who purchased rental properties or commercial assets during the 2010 to 2018 period using liquidity from stock compensation. A second segment consists of longer-tenured Pacific Northwest commercial property owners in their late 50s to 70s who have held multifamily, NNN, or industrial assets since the pre-Amazon era and now carry enormous unrealized gains. Deal sizes range from $1.5 million to $20 million. Many Seattle investors are exploring out-of-state replacement markets, including Phoenix, Dallas, and the Front Range, to access wider cap rates and reduce geographic concentration.

Cap rate context

Seattle multifamily in core submarkets (Capitol Hill, South Lake Union, Fremont) trades at 4.5% to 5.5% as of Q1 2026. Industrial in the SeaTac and Kent Valley logistics corridors runs 5.5% to 6.5%, having expanded from the 2022 lows. NNN retail with national credit tenants trades at 5.2% to 6.2% in strong-traffic areas. DST replacement offerings targeting Pacific Northwest assets are available through most major sponsors, though the market is smaller than California or Texas in aggregate DST allocation volume. Many Seattle investors look to out-of-state NNN or industrial replacement assets to diversify beyond the concentration risk of the Pacific Northwest.

State tax considerations

Washington's 7% capital-gains tax on individual gains above $262,000 (indexed for inflation, tax year 2024 threshold; confirm current threshold with counsel) is the defining state-tax fact for Seattle property sellers. Washington does not have a general state income tax, which means wages and ordinary income are not subject to state taxation. However, net capital gains above the annual threshold are subject to the 7% Washington capital-gains tax. Real property sales were initially excluded from the tax's scope under the 2021 legislation, but the definition and application of the tax to real property interests held through entities has been subject to ongoing legal and regulatory interpretation; investors should confirm with Washington tax counsel whether their specific transaction triggers the levy. A 1031 exchange that defers the gain entirely avoids triggering the Washington capital-gains tax in the year of sale, which is a meaningful deferral benefit on top of the federal capital-gains deferral.

Local 1031 process notes

King County property records with the King County Department of Assessments and the King County Recorder's Office in Seattle. Snohomish and Pierce county transactions use their respective county recording offices. Recording timelines average two to four business days. The Seattle market is served by national Qualified Intermediaries with Pacific Northwest offices and several Seattle-based independent QI firms. The 45-day identification period and 180-day exchange period run from the close of the relinquished property. Seattle investors targeting out-of-state replacement assets should confirm replacement availability and timing with their QI and broker well before the relinquished property closing.

Figures are approximate, based on market data as of Q1 2026. Consult your tax advisor regarding your specific situation.