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Energy Efficient Home Credit (45L) in Wisconsin 2026

Calculate your energy efficient home credit (45l) tax savings in Wisconsin. With Wisconsin's 7.65% top state tax rate, your combined savings are higher.

Wisconsin Tax Overview

State Income Tax
7.65%
progressive
Sales Tax
5%
avg combined: 5.43%
Property Tax Rate
1.61%
Median Income
$67,125

Four brackets 3.5%-7.65%. High property taxes (1.61%). Standard deduction phases out. Farm capital gains exclusion. Social Security exempt.

Wisconsin Income Tax Brackets (Single)

3.5%
$0 - $14,320
4.4%
$14,320 - $28,640
5.3%
$28,640 - $315,310
Your bracket
7.65%
$315,310 +
$5,000
Est. Total Savings
$5,000
Max Deduction
Tax Credit
Deduction Type
27.3%
Combined Tax Rate

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

$
$

Federal Savings

$5,000

22% bracket

Wisconsin State

$0

5.3% rate

Total Savings

$5,000

27.3% combined

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

Savings by Tax Bracket in Wisconsin

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

Includes 5.3% Wisconsin 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

Wisconsin residents should verify that this deduction is also recognized on their state tax return for additional savings of up to 7.65%.

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 Wisconsin state return (missing up to 7.65% additional savings)

Wisconsin Filing Tips

Standard deduction phases out at higher incomes. Use capital gains exclusions on WI farm and business assets. Social Security exempt. Homestead credit helps offset property taxes.

Required Tax Forms

Form 8908Form 3800

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

Other Tax Deductions in Wisconsin

Mortgage Interest Deduction

Housing

~$4,343
est. savings

Property Tax Deduction

Housing

~$2,730
est. savings

Home Office Deduction

Housing

~$1,489
est. savings

Home Energy Tax Credit

Housing

~$1,800
est. savings

Residential Solar Tax Credit

Housing

~$7,500
est. savings

Military Moving Expenses

Housing

~$4,964
est. savings

PMI Premium Deduction

Housing

~$1,365
est. savings

Mortgage Points Deduction

Housing

~$2,482
est. savings

Energy Efficient Home Credit (45L) in Neighboring States

Michigan

4.25% top rate (flat)

~$2,500
-2,500 vs Wisconsin

Minnesota

9.85% top rate (progressive)

~$2,500
-2,500 vs Wisconsin

Iowa

3.8% top rate (flat)

~$2,500
-2,500 vs Wisconsin

Illinois

4.95% top rate (flat)

~$2,500
-2,500 vs Wisconsin

Tax Calculators for Wisconsin Cities

MilwaukeeMadisonGreen BayKenoshaRacineAppletonWaukeshaEau ClaireOshkoshJanesville

Calculate Your Full Tax Savings in Wisconsin

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

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

Frequently Asked Questions

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

In Wisconsin, 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 Wisconsin state tax savings at the 5.3% marginal rate. The national average savings is $2,500/year.

What is the Wisconsin state income tax rate?

Wisconsin has a progressive income tax system with a top rate of 7.65%. Four brackets 3.5%-7.65%. High property taxes (1.61%). Standard deduction phases out. Farm capital gains exclusion. Social Security exempt.

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

Builders or developers of new energy-efficient homes. The eligibility requirements are the same whether you live in Wisconsin or another state, as this is a federal tax credit. However, your total savings will vary based on Wisconsin's 7.65% top state tax rate.

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

To claim the energy efficient home credit (45l), you need to file Form 8908 and Form 3800 with your federal return. Wisconsin residents should also check if the state allows this deduction on their state return for additional savings of up to 7.65%. Filing status affects your deduction limits and tax bracket.

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

Yes, Wisconsin residents benefit more because the state's 7.65% 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 27.3% means more savings per dollar deducted.

What is the standard deduction in Wisconsin for 2026?

Wisconsin's standard deduction is $12,760 for single filers and $23,620 for married filing jointly. Standard deduction phases out at higher incomes. Use capital gains exclusions on WI farm and business assets. Social Security exempt. Homestead credit helps offset property taxes.

Related Calculators

Mortgage Interest Deduction in Wisconsin

Avg savings: $3,500/year

Property Tax Deduction in Wisconsin

Avg savings: $2,200/year

Home Office Deduction in Wisconsin

Avg savings: $1,200/year

Home Energy Tax Credit in Wisconsin

Avg savings: $1,800/year

Residential Solar Tax Credit in Wisconsin

Avg savings: $7,500/year

Military Moving Expenses in Wisconsin

Avg savings: $4,000/year