Energy-Efficient Commercial Building Deduction (179D) vs Energy-Efficient New Homes Credit (45L)

Energy-Efficient Commercial Building Deduction (179D) provides Up to $5.00/sq ft (up to $5.00 per square foot) (Tax Deduction), while Energy-Efficient New Homes Credit (45L) provides Up to $5,000 (up to $5,000) (Tax Credit). The actual value depends on your specific project cost, tax liability, and whether you meet each program's eligibility requirements.

These programs cover different categories (Commercial vs New Construction), so they generally apply to different improvements and do not conflict with each other.

Energy-Efficient Commercial Building Deduction (179D) is a tax deduction covering commercial (Federal level), while Energy-Efficient New Homes Credit (45L) is a tax credit covering new construction (Federal level). They differ in amount, eligibility criteria, and how they are claimed.

Energy-Efficient Commercial Building Deduction (179D) is typically claimed through the administering agency. Energy-Efficient New Homes Credit (45L) is claimed on your tax return. Tax credits are generally straightforward if you file taxes; rebates may require pre-approval or contractor participation.

Energy-Efficient Commercial Building Deduction (179D) is available nationwide, while Energy-Efficient New Homes Credit (45L) is available nationwide. There may be overlap in who can qualify for both. Check each program's specific eligibility requirements for details.