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.