Energy Efficient New Homes Credit (45L)
A credit for builders of new energy-efficient homes that meet Energy Star or DOE Zero Energy Ready Home program requirements.
Estimate Your Savings
This is a simplified estimate. Actual savings depend on your complete tax situation.
Eligibility
Builders of energy-efficient new homes
Requirements
- 1Must be eligible contractor
- 2Home must meet Energy Star or Zero Energy Ready standards
- 3Home must be acquired for use as a residence
Required Tax Forms
Linked forms open the IRS form or schedule page when a stable IRS reference page exists. Always verify the current-year instructions before filing.
Claiming Workflow for Energy Efficient New Homes Credit (45L)
Confirm Eligibility
Must be eligible contractor; Home must meet Energy Star or Zero Energy Ready standards; Home must be acquired for use as a residence
Model the Tax Impact
Estimate whether up to $5,000 changes your refund or balance due before filing.
Attach the Right Forms
Prepare Form 8908, Form 3800 and keep receipts, statements, or proof of qualifying activity with your records.
The fastest way to avoid overclaiming is to run this credit next to your full income, withholding, and deduction picture. Start with the income tax calculator, then compare the refund effect with the tax refund estimator.
Energy Credit Comparison
A 30% tax credit for installing solar panels, wind turbines, geothermal heat pumps, and battery storage systems on your home.
Up to $7,500 credit for purchasing a new qualifying plug-in electric or fuel cell vehicle assembled in North America.
Up to $4,000 or 30% of the sale price (whichever is less) for purchasing a qualifying used electric vehicle from a dealer.
Comparing related credits matters because some credits stack cleanly while others depend on the same expense, dependent, property, or income threshold.
IRS Source Check & Claim File
Primary source: IRS Form 8908: Energy Efficient Home Credit. Energy Efficient New Homes Credit claims depend on eligible contractor status, qualified new energy-efficient home acquisition, ENERGY STAR or Zero Energy Ready certification, and general business credit reporting.
Current-year caution: Source-reviewed June 13, 2026: IRS Form 8908 guidance says eligible contractors use the December 2025 revision for tax years beginning in 2025 or later. Confirm the current form instructions before filing.
Keep the source document and supporting records with the return for the year claimed. Complex business, energy, payroll, or carryforward credits should be reviewed by a CPA, Enrolled Agent, or tax attorney before filing.
Understanding the Energy Efficient New Homes Credit (45L)
A credit for builders of new energy-efficient homes that meet Energy Star or DOE Zero Energy Ready Home program requirements.
Tax credits directly reduce the amount of tax you owe, making them more valuable than deductions which only reduce taxable income. The Energy Efficient New Homes Credit (45L) can reduce your tax liability by up to $5,000.
To claim this credit, you will need to file Form 8908 and Form 3800 with your annual tax return. Make sure you meet all eligibility requirements and keep documentation of qualifying expenses or activities.
Methodology & Official Sources for Energy Efficient New Homes Credit (45L)
LevyIO models Energy Efficient New Homes Credit (45L) from the credit amount, average savings, eligibility notes, requirements, and tax forms shown on this page. The estimator is intentionally conservative: it approximates federal tax before and after a possible credit so you can see directional impact before completing a full return.
What the Estimate Uses
- Credit value: up to $5,000
- Eligibility screen: Builders of energy-efficient new homes
- Required forms: Form 8908, Form 3800
- Filing status and income entered in the calculator above
What Still Needs Review
- Exact income phaseouts and current-year limits
- Whether the credit is refundable, nonrefundable, or transferable
- State-level treatment and documentation rules
- Interactions with other credits claimed on the same return
Official source checks:
- IRS Credits & Deductions for Individuals
- IRS Forms & Instructions
- IRS Publications
- IRS Interactive Tax Assistant
- IRS Refund Status Tools
Tax Disclaimer: Tax credit eligibility and amounts can change. This page is for educational planning, not tax advice. Verify the current form instructions before filing and consult a CPA, Enrolled Agent, or tax attorney for complex returns.
Reviewed by Brazora Monk · Last updated 2026-05-21
Calculate Your Full Tax Picture
Use our free tax calculators to estimate your total tax liability and savings.
Browse Credits by Category
1. Enter the tax scenario
Use the filing status, income type, state, payroll, deduction, credit, or transaction details that match the real case.
2. Review assumptions
Check the visible formula context, source notes, related calculators, and federal or state limits before relying on the estimate.
3. Verify before filing
Confirm final tax positions with IRS guidance, state revenue agencies, payroll records, brokerage forms, or a qualified tax professional.
Planning estimate, not tax advice
LevyIO calculators are educational planning tools. Actual federal, state, payroll, property, sales, and local tax results can change with filing status, credits, deductions, residency, employer withholding, address-level rates, and current forms. Verify final filing positions with IRS or state guidance, payroll records, tax software, or a qualified tax professional.
Frequently Asked Questions
What is the Energy Efficient New Homes Credit (45L)?
A credit for builders of new energy-efficient homes that meet Energy Star or DOE Zero Energy Ready Home program requirements.
How much is the Energy Efficient New Homes Credit (45L) worth?
The Energy Efficient New Homes Credit (45L) is worth up to $5,000 per year. The average taxpayer saves approximately $3,500.
Who is eligible for the Energy Efficient New Homes Credit (45L)?
Builders of energy-efficient new homes. Key requirements include: Must be eligible contractor; Home must meet Energy Star or Zero Energy Ready standards; Home must be acquired for use as a residence.
What forms do I need to claim the Energy Efficient New Homes Credit (45L)?
You will need to file Form 8908, Form 3800 with your tax return to claim this credit.
Is the Energy Efficient New Homes Credit (45L) refundable?
Check the IRS form instructions for this specific credit. Most non-family, non-education tax credits are nonrefundable but may be carried forward.
Can I claim the Energy Efficient New Homes Credit (45L) with other tax credits?
Yes, in most cases you can claim the Energy Efficient New Homes Credit (45L) along with other eligible tax credits. However, some credits have interactions that may reduce the benefit. Consult a tax professional for your specific situation.
Related Calculators
Residential Clean Energy Credit
Avg $7,500 savings
Clean Vehicle Credit (EV)
Up to $7,500
Used Clean Vehicle Credit
Up to $4,000
Alternative Fuel Vehicle Refueling Credit
Up to $1,000
Tax Refund Estimator
See if you'll get a refund
Income Tax Calculator
Full federal tax estimate
Tax Bracket Calculator
Find your marginal bracket