IRA Tax Credit Programs (25C, 25D, 45L)
Why this matters
The Inflation Reduction Act (IRA) 2022 expanded and extended federal tax credits for energy-efficient home improvements and renewable energy. Customers ask contractors about these credits; contractors who can accurately explain them close more sales. Knowing the credits also lets the contractor structure quotes to maximize customer benefit.
The three main credits
Section 25C: Energy Efficient Home Improvement Credit
For homeowners making efficiency improvements:
- 30 percent of qualifying costs
- Per-year caps by category
- Effective 2023-2032
Section 25D: Residential Clean Energy Credit
For homeowners installing renewable energy:
- 30 percent of qualifying costs
- No annual cap
- Effective 2022-2032 (steps down 2033, 2034)
Section 45L: New Energy Efficient Home Credit
For builders / developers of new energy-efficient homes:
- Per-home tax credit
- Various amounts based on certification
- Effective 2023-2032
Section 25C in detail
Eligible improvements
| Category | Annual cap |
|---|---|
| Insulation, air sealing | $1,200 total category |
| Windows (qualified) | $600 |
| Doors (qualified) | $250 each, $500 total |
| Heat pumps (HVAC) | $2,000 |
| Heat pump water heaters | $2,000 (combined with HVAC) |
| Biomass stoves | $2,000 (combined) |
| Central AC (high SEER2) | $600 |
| Furnace / boiler (high efficiency) | $600 |
| Electrical panel upgrade (for above) | $600 |
| Home energy audit | $150 (one per year) |
Total annual cap typically $3,200 ($1,200 + $2,000 separately).
Qualifying products
For each category, specific efficiency requirements:
- Windows: ENERGY STAR Most Efficient typically
- Heat pumps: specific HSPF2 / SEER2 requirements (CEE Highest Tier typical)
- Insulation: specific R-values for the climate
- Doors: ENERGY STAR or higher
Manufacturer documentation typically indicates qualifying status.
Customer claims
- Customer keeps documentation
- Claims on IRS Form 5695
- Credit reduces tax owed (non-refundable)
- Carries forward if not fully used
Eligibility
- Primary residence (typically; some categories include second home)
- Existing home (not new construction)
- Customer is taxpayer
- Improvements made in the tax year claimed
Section 25D in detail
Eligible installations
| System | Coverage |
|---|---|
| Solar photovoltaic (PV) | 30 percent of cost |
| Solar water heating | 30 percent of cost |
| Geothermal heat pump | 30 percent of cost |
| Battery energy storage (3+ kWh) | 30 percent of cost |
| Fuel cell | 30 percent of cost |
| Small wind energy | 30 percent of cost |
No annual cap
- 30 percent of qualifying costs
- No dollar limit
- Customer can claim large installations
Phase-down
- 2022-2032: 30 percent
- 2033: 26 percent
- 2034: 22 percent
- 2035 and later: expired
Customer claims
- IRS Form 5695
- Documentation includes:
- Cost of system
- Date placed in service
- Manufacturer certifications
Eligibility
- Primary or second residence
- Must be installed in the home
- Customer owns the system (not leasing typically)
- New (not used) systems
- Located in the United States
Section 45L in detail
Eligible
For builders / developers:
- Single-family or multi-family new construction
- Specific efficiency certifications
Amounts
| Certification level | Credit per home |
|---|---|
| Single-family ENERGY STAR | $2,500 |
| Single-family DOE Zero Energy Ready Home (ZERH) | $5,000 |
| Multi-family ENERGY STAR | $500 per unit |
| Multi-family ZERH | $1,000 per unit |
For prevailing wage compliance (multi-family):
Eligibility
- Manufactured home, single-family, multi-family
- Built / developed in the tax year claimed
- Certified per the standard
- Customer sells or leases
Claims
- IRS Form 8908
- Builder / developer claims
- Customer (homeowner) doesn't claim
Examples
Customer installing solar PV
- 25D credit: 30 percent of the installed system cost, no annual cap
- Customer claims on Form 5695
Customer installing heat pump + air sealing + windows
- Heat pump: credit caps at $2,000
- Air sealing: counts toward the $1,200 building-envelope sub-cap
- Windows: credit caps at $600
- Total annual credit: caps at $3,200 (combining the $2,000 heat-pump line and the $1,200 envelope line)
- Future years can claim more (the caps are annual, not lifetime)
Customer installing geothermal
- 25D credit: 30 percent of the installed system cost, no annual cap
- Larger benefit than air-source heat pump (25C cap)
Contractor's role
Educate, don't advise on taxes
- Provide information about available credits
- Don't promise specific tax outcomes
- Customer should consult tax professional
Provide documentation
- Manufacturer specifications
- Cost details
- Installation date
- Product certifications
Suggest credit-maximizing approach
- Bundle work for the year's cap
- Stage major work across years (multiple year caps)
- Recommend specific products that qualify
Don't overpromise
- Each taxpayer's situation varies
- Tax credit may not fully apply
- Future tax law changes possible
Documentation customer needs
For each tax credit claim:
For Section 25C
- Manufacturer's certification statement
- Invoice with cost breakdown
- Installation date
- Specific product specifications
For Section 25D
- Same as above plus:
- System sizing documentation
- Battery capacity (if applicable)
- Net metering documentation (PV)
For Section 45L
- Builder's documentation
- Specific efficiency certification
- Customer (homeowner) doesn't have to file
State and local credits
In addition to federal:
State tax credits
- Vary by state
- Some states have additional energy credits
- Some have sales tax exemption
Utility rebates
- Specific to utility
- Vary widely
- Customer applies through utility
Local incentives
- Some cities / counties offer
- Specific to area
The contractor should know what's available locally.
Income limitations
Section 25C
- No income limit
- Available to all taxpayers
Section 25D
- No income limit
Some state programs
- May have income limits
- Specific to each program
Refundability
Non-refundable
- Most federal credits (including 25C and 25D)
- Can reduce tax to zero; can't generate refund
- Excess carried forward (25C and 25D) for some
Refundable
- Specific programs (some EV credits)
- Customer's refund
The customer's tax situation matters.
Documentation customer keeps
For each year claimed:
Records
- All invoices and receipts
- Manufacturer certifications
- Photos of installation
- Energy assessment (if applicable)
Retention period
References
- Internal Revenue Code Sections 25C, 25D, 45L.
- IRS Form 5695 (Residential Energy Credits).
- IRS Form 8908 (Builder's Energy Efficient New Home Credit).
- IRA 2022 amendments to these sections.
- ENERGY STAR certification database.
- CEE (Consortium for Energy Efficiency) qualifying products.
- Manuall internal: Universal Year-End Tax Planning, Universal Setup QuickBooks Service Business.