/state-conformity / WA
Federal energy / EV credit conformity · WA
Washington · WA
Federal conformity
How Washington treats each federal credit
Washington has no state personal income tax. Federal §25C / §25D / §30D / §25E flow through only on the federal return; no WA state-tax conformity question.
Energy Efficient Home Improvement
Read the §25C pillar →
Residential Clean Energy
Read the §25D pillar →
New Clean Vehicle
Read the §30D pillar →
Previously-Owned Clean Vehicle
Read the §25E pillar →
Independent WA programs
State-level energy and EV credits
These programs survive federal termination — they apply independently of §25C / §25D / §30D / §25E.
Energy / residential
No state-level residential-energy income-tax credit identified at primary source.
WA's previous state solar production-incentive program (RCW 82.16.130) sunset; new programs may exist — verify current at WA DOR.
EV / vehicle
- WA Sales/Use Tax Exemption — Alternative-Fuel Vehicles (RCW 82.08.809)
exemption applies to up to $20,000 of new EV sales price / $16,000 used (verify current statute and effective dates)
sales/use tax exemption · expires see RCW 82.08.809 — verify current effective dates · verified 2026-05-07
Amend-window decoder
Decode your WA situation
Open the decoder pre-filled to Washington to see how the federal §25C / §25D / §30D / §25E rules and the §6511(a) amend window apply to your install or vehicle.
last verified2026-05-07·source:law.cornell.edu
Last verified · 2026-05-07 · 2026-05-07 sweep