The bill creates a temporary work group, convened and facilitated by the Department of Revenue, to study and provide recommendations to the Legislature on taxation of investment income under RCW 82.04.4281. The Department must follow RCW 43.18A.020 when making appointments and provide the report required by RCW 43.18A.030. The work group must hold its first meeting within 45 days of appointment, meet at least monthly, and deliver recommendations by November 30, 2025. The work group section expires November 30, 2026. Representative entities named for membership include the Office of Financial Management, an international investment management services company, a statewide nonprofit arts and cultural organization, a union pension fund, a general business association, and a certified public accountant association. The bill also imposes a temporary prohibition on the Department of Revenue assessing business and occupation (B&O) tax on investment income of persons that are not “banking, lending, or security businesses” on the ground that the income is ineligible for the deduction described in RCW 82.42.4281(1)(a) because the amounts or investment activities are “more than incidental.” That assessment prohibition expires July 1, 2026. The act is declared an emergency and takes effect immediately. These are procedural and administrative changes: creation of a study work group and a temporary limitation on the Department of Revenue’s assessment authority. No new crimes or penalties are created. Important information is missing or unclear in the provided text. The bill repeatedly references RCW 82.04.4281 but also cites RCW 82.42.4281(1)(a), and it is not clear whether that is a typographical error or a distinct provision. The definitions and the actual deduction language in RCW 82.04.4281 (including the definition of “banking, lending, or security businesses”) are not included, and the summary provides no details about the referenced court decision (Antio, LLC v. Department of Revenue). Other procedural details for the work group and any enforcement processes beyond the temporary assessment prohibition are not provided.

If enacted, the bill immediately stops the Department of Revenue from treating investment income of non‑banking, non‑lending, non‑securities businesses as ineligible for the investment income deduction on the specific ground that the income or activities are “more than incidental,” with that protection ending July 1, 2026. That means affected businesses, nonprofits, pension funds and similar entities face a reduced near‑term risk of new B&O tax assessments on that theory, while the Department must convene and run a work group and deliver recommendations to the Legislature by November 30, 2025. Practically, the Department of Revenue will need staff time and resources to assemble and facilitate the work group (including representatives from OFM, investment managers, arts and cultural nonprofits, union pension funds, business groups, and CPAs) and cannot pursue certain assessments for the covered period, shifting timing and enforcement risk away from taxpayers until the temporary ban expires. Important details about which entities are covered and how the rules apply are unclear in the bill text (there are inconsistent citations and no definitions included here), so the exact scope of the relief and the long‑term effects depend on clarifying those points.