Heat pump rebates in Washington (2026)

The Washington Department of Commerce funds this from the Climate Commitment Act and distributes it through local administrators. Its status wording is clear: “Programs funded by 2023-2025 funding are still open, and rebates are available.” Commerce invested roughly $73.5 million across 55 rebate and incentive programmes in 2024–2025, with about $30.1 million more anticipated.

But per-household heat pump amounts are not published anywhere central, because each local administrator sets them. We are not going to quote a figure we cannot source. The practical route is to contact Commerce to find the administrator covering your county.

Eligibility is income-based: “Low-income, moderate-income (LMI), single and multifamily households, including renters, with household income that is 150% of Area Median Income (AMI) or less.”

Washington’s IRA-funded Home Energy Rebates are a separate thing from the state programme above, and they have not launched. Commerce’s own progress tracker marks the current stage as “Step 5 — Program operation preparation ... We are here”, and adds that DOE released updated guidance on 1 June 2026 which Commerce is evaluating.

One rule to note now, because it decides whether you should wait: “Rebates are not retroactive.” Installing today will not qualify you later.

Seattle — Clean Heat Program (oil to heat pump). The strongest verified offer in the state: “a $2,000 instant rebate when you switch from heating your home with oil to heating with an energy-efficient Mitsubishi Electric Heat Pump”, plus “a $4,000 bonus rebate on top of the $2,000” for moderate-income households between 81% and 150% of AMI — “Combining these incentives means you could save up to $6,000 on the project!”

Income band for the bonus runs from $81,700–$172,650 for one person up to $154,000–$325,550 for eight. The bonus has a deadline: “Bonus rebates are available for installations completed by September 30, 2026.”

Puget Sound Energy — moderate-income fuel switching. “If you’re an income-qualified customer currently heating your home with natural gas, PSE offers a $4,000 rebate on a heat pump system.” Income-qualified customers only; the exact thresholds sit behind a calculator we could not read, so we are not quoting them.

Snohomish County PUD. No income test: $1,800 for a ducted conversion heat pump (minimum 7.5 HSPF2 / 13.8 SEER2), $2,500 for a ducted inverter-driven unit (8.5 HSPF2 / 13.8 SEER2). You must use a PUD-registered contractor and electric heat must be a primary heating source.

We checked the Department of Revenue’s full retail sales and use tax exemption index and found no entry for heat pumps, HVAC or residential electrification. If a page tells you Washington exempts heat pumps from sales tax, ask it for the RCW citation. We could not verify one exists.

Seattle City Light’s own residential heat pump rebates, and PSE’s non-income-qualified heat pump rebates, are listed on their sites but we did not read the amounts on their own pages — so we are not publishing figures for them. Washington has a large number of municipal utilities and PUDs; yours may well pay something not listed here.

• WA Department of Commerce — state HEAR programme (status, AMI eligibility, funding)
• WA Department of Commerce — IRA Home Energy Rebates (launch stage, non-retroactive rule)
• City of Seattle — Clean Heat Program (oil conversion rebate, bonus, 30 September 2026 deadline)
• Puget Sound Energy — moderate-income fuel-switching heat pump rebate
• Snohomish County PUD — heat pump rebates

Programmes change without notice. If a figure here is out of date, tell us — we fix it and change the date at the top.