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Energy Efficient Home Credit (45L) in Hawaii 2026

Calculate your energy efficient home credit (45l) tax savings in Hawaii. With Hawaii's 11% top state tax rate, your combined savings are higher.

Hawaii Tax Overview

State Income Tax
11%
progressive
Sales Tax
4%
avg combined: 4.44%
Property Tax Rate
0.27%
Median Income
$84,857

12 brackets (most of any state). Second-highest top rate (11%). Lowest property tax (0.27%). General Excise Tax.

Hawaii Income Tax Brackets (Single)

1.4%
$0 - $2,400
3.2%
$2,400 - $4,800
5.5%
$4,800 - $9,600
6.4%
$9,600 - $14,400
6.8%
$14,400 - $19,200
7.2%
$19,200 - $24,000
7.6%
$24,000 - $36,000
7.9%
$36,000 - $48,000
8.25%
$48,000 - $150,000
Your bracket
9%
$150,000 - $175,000
10%
$175,000 - $200,000
11%
$200,000 +
$5,000
Est. Total Savings
$5,000
Max Deduction
Tax Credit
Deduction Type
30.3%
Combined Tax Rate

Energy Efficient Home Credit (45L) Savings Calculator for Hawaii

$
$

Federal Savings

$5,000

22% bracket

Hawaii State

$0

8.25% rate

Total Savings

$5,000

30.3% combined

Tax credits reduce your tax bill dollar-for-dollar, regardless of your tax bracket.

Savings by Tax Bracket in Hawaii

10%
$5,000
12%
$5,000
22%
$5,000
24%
$5,000
32%
$5,000
35%
$5,000
37%
$5,000

Includes 8.25% Hawaii state tax on top of federal savings.

Eligibility Requirements

Builders or developers of new energy-efficient homes

  • 1$2,500 for ENERGY STAR certified homes
  • 2$5,000 for DOE Zero Energy Ready homes
  • 3Must meet prevailing wage requirements for full credit

Hawaii residents should verify that this deduction is also recognized on their state tax return for additional savings of up to 11%.

Common Mistakes to Avoid

  • !Not obtaining required certifications before claiming
  • !Missing prevailing wage requirements
  • !Failing to meet the 50% energy savings threshold
  • !Forgetting to claim the deduction on your Hawaii state return (missing up to 11% additional savings)

Hawaii Filing Tips

The low standard deduction ($2,200) makes itemizing attractive. The GET applies more broadly than most sales taxes. Hawaii offers a refundable food/excise tax credit. Take advantage of the very low property taxes.

Required Tax Forms

Form 8908Form 3800

File these forms with your federal tax return to claim the energy efficient home credit (45l). Hawaii may require additional state-specific forms.

Other Tax Deductions in Hawaii

Mortgage Interest Deduction

Housing

~$4,813
est. savings

Property Tax Deduction

Housing

~$3,025
est. savings

Home Office Deduction

Housing

~$1,650
est. savings

Home Energy Tax Credit

Housing

~$1,800
est. savings

Residential Solar Tax Credit

Housing

~$7,500
est. savings

Military Moving Expenses

Housing

~$5,500
est. savings

PMI Premium Deduction

Housing

~$1,513
est. savings

Mortgage Points Deduction

Housing

~$2,750
est. savings

Energy Efficient Home Credit (45L) in Neighboring States

California

13.3% top rate (progressive)

~$2,500
-2,500 vs Hawaii

Tax Calculators for Hawaii Cities

Honolulu

Calculate Your Full Tax Savings in Hawaii

Use our free tax calculators to optimize your entire tax return for Hawaii.

Income Tax CalculatorHawaii Income TaxFull Energy Efficient Home Credit (45L) Guide

Frequently Asked Questions

How much can I save with the Energy Efficient Home Credit (45L) in Hawaii?

In Hawaii, the energy efficient home credit (45l) can save you an estimated $5,000 per year on a $5,000 deduction. This includes $5,000 in federal tax savings and $0 in Hawaii state tax savings at the 8.25% marginal rate. The national average savings is $2,500/year.

What is the Hawaii state income tax rate?

Hawaii has a progressive income tax system with a top rate of 11%. 12 brackets (most of any state). Second-highest top rate (11%). Lowest property tax (0.27%). General Excise Tax.

Who qualifies for the Energy Efficient Home Credit (45L) in Hawaii?

Builders or developers of new energy-efficient homes. The eligibility requirements are the same whether you live in Hawaii or another state, as this is a federal tax credit. However, your total savings will vary based on Hawaii's 11% top state tax rate.

What tax forms do I need to claim the Energy Efficient Home Credit (45L) in Hawaii?

To claim the energy efficient home credit (45l), you need to file Form 8908 and Form 3800 with your federal return. Hawaii residents should also check if the state allows this deduction on their state return for additional savings of up to 11%. Filing status affects your deduction limits and tax bracket.

Is the Energy Efficient Home Credit (45L) better in Hawaii than in states without income tax?

Yes, Hawaii residents benefit more because the state's 11% top income tax rate means the deduction reduces both your federal AND state tax liability. In states with no income tax (like Texas, Florida, or Nevada), this deduction only reduces federal taxes. Your combined rate of 30.3% means more savings per dollar deducted.

What is the standard deduction in Hawaii for 2026?

Hawaii's standard deduction is $2,200 for single filers and $4,400 for married filing jointly. The low standard deduction ($2,200) makes itemizing attractive. The GET applies more broadly than most sales taxes. Hawaii offers a refundable food/excise tax credit. Take advantage of the very low property taxes.

Related Calculators

Mortgage Interest Deduction in Hawaii

Avg savings: $3,500/year

Property Tax Deduction in Hawaii

Avg savings: $2,200/year

Home Office Deduction in Hawaii

Avg savings: $1,200/year

Home Energy Tax Credit in Hawaii

Avg savings: $1,800/year

Residential Solar Tax Credit in Hawaii

Avg savings: $7,500/year

Military Moving Expenses in Hawaii

Avg savings: $4,000/year