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Business Energy Investment Tax Credit (ITC) in Chicago, IL 2026

Calculate your business energy investment tax credit (itc) tax savings in Chicago, Illinois. With Illinois's 4.95% state tax rate, your combined savings are higher.

Illinois Tax Context

State Income Tax
4.95%
Local Income Tax
None
Property Tax Rate
2.1%
Tax Burden
Very High

Very high combined sales tax (10.25%); high property taxes; flat 4.95% state income tax

$5,000
Est. Total Savings
No Limit
Max Deduction
Tax Credit
Deduction Type
26.9%
Combined Tax Rate

Business Energy Investment Tax Credit (ITC) Savings Calculator for Chicago

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$

Federal Savings

$5,000

22% bracket

Illinois State

$0

4.95% rate

Local Tax

$0

0% rate

Total Savings

$5,000

26.9% combined

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

Savings by Tax Bracket in Chicago

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

Includes 4.95% Illinois state tax on top of federal savings.

Eligibility Requirements

Businesses investing in solar, wind, geothermal, or other qualifying clean energy

  • 130% credit for solar, small wind, geothermal
  • 2Property must be placed in service during tax year
  • 3Bonus credits for domestic content and energy communities

Illinois residents should verify that this deduction is also recognized on their state tax return for additional savings of up to 4.95%.

Common Mistakes to Avoid

  • !Missing prevailing wage and apprenticeship requirements for full credit
  • !Not claiming bonus credits for energy communities
  • !Confusing ITC with production tax credit (PTC)
  • !Forgetting to claim the deduction on your Illinois state return (missing 4.95% additional savings)

Required Tax Forms

Form 3468Form 3800

File these forms with your federal tax return to claim the business energy investment tax credit (itc). Illinois may require additional state-specific forms.

Calculate Your Full Tax Savings in Chicago

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

Frequently Asked Questions

How much can I save with the Business Energy Investment Tax Credit (ITC) in Chicago, IL?

In Chicago, Illinois, the business energy investment tax credit (itc) can save you an estimated $5,000 per year. This includes $5,000 in federal tax savings and $0 in Illinois state tax savings. The national average savings is $20,000/year.

What is the Illinois state income tax rate for Chicago residents?

Illinois has a 4.95% state income tax rate. Chicago residents have no additional local income tax. Very high combined sales tax (10.25%); high property taxes; flat 4.95% state income tax

Who qualifies for the Business Energy Investment Tax Credit (ITC) in Chicago?

Businesses investing in solar, wind, geothermal, or other qualifying clean energy. The eligibility requirements are the same whether you live in Chicago or elsewhere in the U.S., as this is a federal tax credit. However, your savings amount will vary based on Illinois's 4.95% state tax rate.

What tax forms do I need to claim the Business Energy Investment Tax Credit (ITC) in Illinois?

To claim the business energy investment tax credit (itc), you need to file Form 3468 and Form 3800 with your federal return. Illinois residents should also check if the state allows this deduction on their state return, which could provide an additional 4.95% savings. Filing status affects your deduction limits and tax bracket.

Is the Business Energy Investment Tax Credit (ITC) better in Chicago than in states without income tax?

Yes, Chicago residents benefit more because Illinois's 4.95% state income tax 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 26.9% means more savings per dollar deducted.