2019 Washington Solar Tax Exemption

It's Back!

I haven't seen this reported on the usual solar websites, so I'm breaking the news: the Washington state sales tax exemption for residential solar is back!

Passed on 4/22/2019 during the 2019-2020 legislative session, the incentive applies to any solar installation under 100 kW installed after July 2019. The relevant subsection is below: (bold is mine)

(e) Beginning July 1, 2019, and through December 31, 2029, the purchaser is entitled to an exemption under this subsection (1)(e) in an amount equal to one hundred percent of the state and local sales tax due on:

• (i) Machinery and equipment that is used directly in the generation of electricity by a solar energy system that is capable of generating no more than one hundred kilowatts AC of electricity; or
• (ii) Labor and services rendered in respect to installing machinery and equipment exempt under (e)(i) of this subsection, and the seller meets the following requirements at the time of the sale for which the exemption is claimed:

5116-S2.PL§18(1)(e)

You can find the full text here.