Is Washington E3SHB 1960 in force?

Not yet. Signed into law Apr 1, 2026. Takes effect Jan 1, 2028.

Which products does Washington E3SHB 1960 affect?

Washington E3SHB 1960 affects Commercial and utility energy storage systems and Solar PV.

When does Washington E3SHB 1960 take effect?

The effective date on file is January 1, 2028.

E3SHB 1960

PartialRead in the state’s own source. It stays partial until the passage is on file word for word.

What does Washington E3SHB 1960 do? Replaces property tax on solar, wind, and battery storage facilities of 10 MW or more with state and local excise taxes from 2028. Funds local investment distributions and requires a model siting ordinance; counties seeking those funds may not adopt stricter siting standards.

Facts

Kind: Bill
Status: Signed into law
Stage: Not yet in force
Signed or decided: April 1, 2026
Effective: January 1, 2028
Topics: Fire protection and siting, Incentives and programs
Products: Commercial and utility energy storage systems Solar PV
Source: Washington State Legislature (opens in a new tab)
Citation: E3SHB 1960 (2025-26 biennium, passed in the 2026 regular session), Chapter 260, Laws of 2026

The state’s codes

The codes that reach each product this law names, with the edition Washington is on. Each links to the record.

For information only. Your local building or fire official decides which code applies. We check state records often but can miss a recent change, so confirm with your official before you design, permit, or install. Terms of use