Are Real Estate Gains Subject to Washington's New 9.9% Income Tax?

Key Takeaways

• Real property sales excluded from WA 9.9% income tax.
• Exclusion applies to primary, investment, commercial real estate.
• LLC interest sales get proportional exclusion for directly owned property.
• REIT gains remain taxable under Washington income tax.
• Dealer or short‑term gains may not qualify for exclusion.

Pulse Analysis

Washington’s 9.9% income tax, triggered once household earnings exceed $1 million, marks the state’s first broad personal‑income levy. Lawmakers paired the tax with a targeted exemption for real‑estate gains, recognizing that many Washington residents have amassed wealth through soaring home values. By stripping long‑term capital gains from the federal AGI and then re‑adding only those subject to the separate capital‑gains tax, ESSB 6346 effectively removes direct property sales from the state’s tax base, leaving only federal obligations.

For investors, the exemption is a double‑edged sword. Direct sales of homes, rental units, or commercial buildings enjoy a clean break from Washington’s new tax, but the benefit hinges on ownership structure. A proportional exclusion applies when an LLC or partnership interest is sold, provided the entity directly holds the real property; any gain tied to ancillary assets or layered subsidiaries re‑enters taxable income. Meanwhile, REIT shareholders and fund investors receive no such shelter, as the statute limits the exemption to timber‑related REIT gains. Dealers who flip properties as ordinary income also fall outside the long‑term capital‑gain carve‑out, potentially facing the full 9.9% rate.

Practically, the rule compels high‑earning Washingtonians to revisit transaction timing and entity design. Tax planners must model scenarios where a modest increase in W‑2 wages combined with a real‑estate sale could push taxable income past the threshold, triggering the new levy. Conversely, restructuring ownership through single‑tier LLCs can preserve the exclusion for sizable commercial deals. As the market adjusts, the exemption may influence real‑estate pricing, investment flows, and the state’s broader fiscal outlook, underscoring the need for proactive, expert advice before closing any deal.