TL;DR

  • Three rebate programs stack on qualifying 2026 heat pump installs in SD County: SDG&E Home Energy Savings (up to $3,100), federal 25C tax credit (30%, up to $2,000), and IRA-funded Inflation Reduction Act rebates (income-qualified, up to $8,000).
  • Typical out-of-pocket for a 3-ton heat pump install after all three stacks: $5,500–$11,000 on a $12,000–$18,000 install.
  • Income-qualified households (80%–150% AMI) can see the IRA rebate push net cost below $5,000.
  • Non-income-qualified households still get $3,000–$5,100 in stacked savings — usually pays back operating-cost savings in 5-7 years.
  • Paperwork is real but not impossible. We handle the rebate paperwork in-house on every install.

Heat pump rebates are the most confusing corner of California HVAC in 2026. Three different agencies, three different forms, three different eligibility tiers, and a lot of contractor marketing that adds numbers without explaining which households actually qualify for which. Let’s walk through the actual math.

What the three rebate programs are

1. SDG&E Home Energy Savings Program (utility rebate)

San Diego Gas & Electric runs the local-utility rebate program. In 2026 the program covers:

  • Heat pump HVAC (ducted, whole-home): up to $3,100
  • Mini-split heat pump (ductless): up to $700 per head, 2-head minimum for whole-home conversion
  • Heat pump water heater: up to $1,500
  • Smart thermostat with heat pump install: up to $150

Rebate is paid as an SDG&E bill credit, typically 6-10 weeks after submission. Eligibility requires an approved contractor (SDG&E maintains a list — we’re on it), an AHRI certificate showing the equipment meets minimum SEER2/HSPF2 thresholds, and a licensed C-20 installer’s signature on the paperwork.

Source: SDG&E Home Energy Savings Program

2. Federal 25C tax credit (Inflation Reduction Act)

The Residential Clean Energy Credit under IRS Section 25C covers 30% of heat pump install cost, capped at $2,000 per year per household. Claimed on IRS Form 5695 when filing annual taxes. Key details:

  • Not refundable — you need enough tax liability to use it. Most SD households have plenty of federal tax to offset, but retirees and low-income filers should check.
  • Can stack with utility rebates — IRS clarified in Notice 2022-61 that utility rebates don’t reduce the basis for the 25C credit (until state definitions change; currently both stack).
  • Equipment must meet CEE Tier 2 or higher — which basically all modern heat pumps do.

Source: IRS Form 5695 + Instructions and Energy Star residential tax credit guidance

3. IRA-funded rebate programs (income-qualified)

The federal Inflation Reduction Act authorized two rebate programs administered by state energy offices:

  • HEEHRA (High-Efficiency Electric Home Rebate) — $8,000 max for heat pump HVAC; $1,750 for heat pump water heater. Income-qualified (80%-150% of Area Median Income).
  • HOMES (Home Owner Managing Energy Savings) — performance-based rebate up to $4,000 for verified energy-use reduction. Income-qualified (above 150% AMI eligible at reduced levels).

California’s HEEHRA rollout went live in 2025 via the California Energy Commission, administered by regional IOUs including SDG&E. San Diego County’s implementation status as of Q1 2026 covers single-family owner-occupied with 80-150% AMI tier enrollment open.

Source: California Energy Commission HEEHRA page and SDG&E HEEHRA enrollment portal.

The real math: five household scenarios

Every SD County household’s rebate situation is different. Here’s the stack math for five common profiles, on a typical $14,000 installed 3-ton heat pump system:

Scenario 1: Median-income Carmel Valley household ($180k/year)

  • SDG&E Home Energy Savings: $2,500 (standard tier)
  • Federal 25C credit: $2,000 (capped, 30% of $14k = $4,200 hits the cap)
  • IRA HEEHRA: $0 (household is above 150% AMI)
  • IRA HOMES: eligible for up to $2,000 based on measured energy savings, but requires post-install metering

Net out of pocket: $9,500 (or $7,500 if HOMES measured-savings rebate comes through)

Scenario 2: Moderate-income El Cajon household ($95k/year, 140% AMI)

  • SDG&E Home Energy Savings: $3,100 (enhanced tier, 80-150% AMI)
  • Federal 25C credit: $2,000
  • IRA HEEHRA: $3,500 (moderate-income tier covers 50% of install up to $8k cap, or $3,500 in this case)

Net out of pocket: $5,400

Scenario 3: Low-income Spring Valley household ($45k/year, 70% AMI)

  • SDG&E Home Energy Savings: $3,100 (maximum tier)
  • Federal 25C credit: $0 (insufficient tax liability to use; household should check filing status)
  • IRA HEEHRA: $8,000 (low-income tier covers 100% up to $8k cap)

Net out of pocket: $2,900 (effectively half the install is covered)

Scenario 4: Coronado older retiree ($65k/year, fixed income, owns outright)

  • SDG&E Home Energy Savings: $3,100
  • Federal 25C credit: $0–$2,000 depending on tax liability (retirees with small Social Security + minimal investment income may not have enough federal tax)
  • IRA HEEHRA: $8,000 (income-qualified based on AMI)

Net out of pocket: $900–$2,900

Scenario 5: Julian backcountry cabin (seasonal residence, $220k/year household)

  • SDG&E Home Energy Savings: $2,500
  • Federal 25C credit: $2,000 (primary residence status required — seasonal cabins may not qualify; check with tax preparer)
  • IRA HEEHRA: $0 (above AMI + often doesn’t qualify for seasonal residence)

Net out of pocket: $9,500–$11,500 depending on 25C eligibility determination

What gets denied

The common rebate disqualifications we see:

  • Wrong SEER2/HSPF2 equipment. SDG&E requires 15 SEER2 minimum; HEEHRA requires ENERGY STAR certification at install. Below these = no rebate. We only quote qualifying equipment.
  • Paperwork within 60 days. SDG&E rebate submissions over 60 days post-install are frequently rejected. We file immediately after commissioning.
  • DIY installs. Both SDG&E and HEEHRA require licensed C-20 installer signature. Self-installed equipment is never eligible.
  • Wrong tax year claim. Federal 25C must be claimed in the tax year of install. Missing the year = forfeit.
  • AMI miscalculation. Households borderline on the AMI tier (80% AMI in SD is ~$75k for a family of 4 in 2026) sometimes assume they qualify when they don’t, or vice versa. HUD’s AMI lookup is the authoritative source.

The operating-cost math after rebates

The rebate conversation is incomplete without operating cost. A typical 3-ton heat pump vs AC + gas furnace combo in SD metro:

  • AC + gas furnace annual operating cost: $850–$1,300 (cooling electric + heating gas)
  • Heat pump annual operating cost: $450–$750 (all-electric, often paired with EV-TOU-5 rate plan)

Annual savings: $300–$550. On a net $5,500 install (Scenario 2 or 3), payback is 10-18 years — well within the 15-20 year equipment lifespan.

For solar homes, the payback shortens dramatically. Heat pump electric demand shifts from “home uses gas” to “home uses solar-offset electric” — which on NEM 3.0 rates can push incremental operating cost to near-zero for the cooling months.

How to actually claim the stack

On an install with us, the sequence is:

  1. We quote the system with AHRI certificate + SEER2/HSPF2 rating visible.
  2. You verify your AMI tier via HUD lookup (we help with this).
  3. We install. Commissioning includes refrigerant charge verification + duct-leakage test.
  4. We submit SDG&E + HEEHRA paperwork within 2 weeks of commissioning.
  5. You claim 25C on your next tax return (Form 5695, attached to 1040).
  6. Rebate checks/credits arrive 6-10 weeks post-submission (SDG&E), 8-16 weeks (HEEHRA).

Don’t try to file yourself unless you’re comfortable with three agencies’ forms. We don’t charge extra for rebate admin — it’s included in the install.

FAQ

Can I stack all three rebates?

Yes for income-qualified households. The 25C tax credit specifically allows stacking with utility and IRA rebates per IRS Notice 2022-61. SDG&E and HEEHRA have different eligibility tiers so they don’t conflict with each other.

What if my household is above 150% AMI?

You still get SDG&E ($2,500) + federal 25C (up to $2,000) = $4,500 in stacked savings. Plus access to the performance-based HOMES rebate if your installed system delivers measured savings. Total stack commonly $5,000-6,500 for median-income SD households.

Is the IRA HEEHRA rebate still available?

As of April 2026, yes — California’s implementation is active and enrolling. Federal budget conversations around IRA continue, so we can’t promise permanence; enrollment sooner is better than later.

Do I need to verify my income tier?

Yes — both SDG&E enhanced tier and HEEHRA require AMI verification. Typical documentation is recent W-2 or 1099 or tax return. HUD’s lookup tool gives the exact AMI threshold for your household size.

Can I use the rebate for a mini-split instead of ducted heat pump?

Yes — mini-splits qualify for all three programs with adjusted rebate caps. SDG&E covers $700 per head on ductless mini-splits with 2-head minimum. Check specific equipment certification before committing.

What this means for you

If you’re a mid-income SD household thinking about heat pump HVAC, the 2026 rebate stack is the most favorable it’s been since the IRA passed. A $14,000 install with a $5,000-6,000 net out-of-pocket math, covered by a $400-500 annual operating-cost reduction, penciles out to a 10-15 year payback on a system warrantied to last 15-20. Above 150% AMI the math is less favorable but still positive.

The wrong move is waiting another year assuming rebates will grow. HEEHRA budgets are annual and SDG&E program budgets are quarterly — both can run out mid-year. If you’re in the 2026 rebate cycle, budget for Q3-Q4 install timing at the latest to avoid missing the window.

If you want the rebate stack run on your specific household, we do free AMI verification + equipment selection as part of any heat pump quote. Call (858) 808-6055 or request a quote online — our heat pump service page has more detail, and our BTU calculator gives a ballpark system size before you book.

Sources and further reading: SDG&E Home Energy Savings Program · IRS Form 5695 + Instructions · California Energy Commission HEEHRA · Energy Star residential tax credit guide · HUD Area Median Income lookup

This post is grounded in publicly-available rebate program documentation as of April 2026. Specific rebate amounts and tiers can change during the year; verify current program terms directly with SDG&E, IRS, or the California Energy Commission before making a purchase decision. Not tax advice.