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TaxBandits supports state-only filing for W-2 forms.

Illinois Form W-2 Filing Requirements

Meet your Illinois W-2 filing requirements confidently with TaxBandits!

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Simplify Your Illinois W-2 Filing with TaxBandits

  • Complete Illinois tax filing compliance
  • We support state-only filing
  • Free retransmission of rejected returns
  • No cost corrections for Illinois W-2 forms
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Illinois Filing Requirements for W-2

The State of Illinois mandates W-2 filing, even if no state tax is withheld.

Condition Filing Method Additional Forms Due Date
If Illinois Tax Was Withheld Direct State Filing Not Required February 02, 2026
If NO Illinois Tax Was Withheld Direct State Filing Not Required February 02, 2026

Ready to start filing W-2s with Illinois?

Information Required to File W-2 Forms with Illinois

Discover the key information needed to file Form W2 with the State of Illinois.

Information Required to File W-2 Forms

1. Employer’s state ID number

The employer's state identification number refers to the Illinois Withholding Tax Account Number.

Illinois State ID Format:

  • 2 digits and a hyphen followed by 7 digits and space followed 3 digits (For example: 99-999999999 999)
  • 2 digits and a hyphen followed by 7 digits
    (For example: 99-9999999)
  • 9 digits (For example: 999999999)
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The state accepts your federal EIN as state ID.

2. Illinois states/local wages

The total amount of taxable income is subject to Illinois state
income tax.

3. Illinois state tax withheld

The total amount of state income taxes withheld from the
recipient's income.

E-file W-2s to the State of Illinois in minutes with TaxBandits!

TaxBandits – Simplifying Illinois State W-2 Compliance

TaxBandits supports the e-filing of W-2 forms directly with the Illinois Department of Revenue, ensuring compliance with state regulations.

Supports State-Only Filing

Supports State-Only Filing

With TaxBandits, you can file
W-2 forms directly with your state, even if you don’t file your federal W-2 with us.

State Filing Guidance

State Filing Guidance

TaxBandits offers clear, step-by-step guidance to make completing the Illinois W-2 e-filing process simple and hassle-free.

State Filing Guidance

Free W-2 State Corrections

TaxBandits supports e-filing of W-2 corrections with the State of Illinois at no additional cost if the original form was filed with us.

Free Resubmissions

Free Resubmissions

If your W-2 forms are rejected by the Illinois Department of Revenue, you can correct errors and resubmit them for free.

Create a TaxBandits account to start filing your Illinois W-2 returns!

How to file Form W-2 with the State of Illinois?

Create your account and follow these steps to easily e-file your W-2s with the state of Illinois!

Start e-filing W-2 Forms with Illinois today—TaxBandits makes it quick and easy!

Frequently Asked Questions

Does Illinois require W-2 filing?

Yes! The Illinois Department of Revenue mandates the filing of Form W-2 if you satisfy any one of the following conditions.

  • You have paid employee compensation in Illinois.
  • You have withheld Illinois income tax.

Remember, Illinois allows only the electronic filing of W-2.

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TaxBandits enables you to file W-2 forms directly with the state of Illinois, even if you filed your federal W-2 elsewhere. E-file now


Does Illinois require any additional forms to be submitted while filing W-2?

No! Illinois does not require any additional forms to be submitted with W-2.


When is the deadline to file W-2 with Illinois?

The deadline to file Form W-2 with Illinois is January 31.

If the deadline falls on a weekend or federal holiday, the next weekday is the deadline.


Can I electronically file W-2 with Illinois?

Yes! In fact, electronic filing is the only way to submit W-2s with the State of Illinois. The state will not accept W-2s if you submit them by paper or CD.

Looking for a trusted e-file provider to transmit your W-2 with Illinois? No worries! TaxBandits is here to help you with that. We support the filing of W-2 with both the SSA and State. Whether you want to file W-2s for 10 or 1000 employees, we have solutions for businesses of all sizes.

Create a FREE account at TaxBandits and e-file W-2s before the deadline.


What are the W-2 penalties for Illinois?

The Illinois Department of Revenue imposes penalties based on how late you file W-2, not paying the taxes on time, and incorrect type of filing.

  • Late filing of W-2
    • If you fail to file W-2 before the deadline, the penalty of $250 or 2% of your unpaid taxes will be imposed on you.
  • Late payment of taxes
    • The penalty for paying the taxes late will be calculated based on the number of days your payment is late. If you pay the taxes within 30 days from the original due date, you will be charged 2% of your unpaid tax as a penalty. For more than 30 days, you will be penalized 10% of your unpaid amount.
  • Not e-filing W-2s
    • The state accepts only the e-filing of W-2s. If you fail to e-file, you will be charged a penalty of $5/form.

Learn more about Form W-2 penalties.


Where do I mail W-2 forms when filing with the State of Illinois?

The State of Illinois does not support paper filing of W-2. So, you must only submit W-2s electronically.

Looking for an IRS-certified e-file provider? TaxBandits is the market leader in e-filing various tax forms, including W-2s. We support both Federal and State filing. Whether you want to file W-2s for 10 or 1000 employees, we have a solution for businesses of all sizes.

Get started with TaxBandits today and stay compliant with the State of Illinois! Start Filing Now.


Can I file W-2c with the State of Illinois?

Yes, you can e-file a W-2c with the State of Illinois to correct errors in a previously submitted W-2. Please note that Illinois accepts W-2c forms only via e-filing.

Create your FREE account now to start e-filing your W-2c forms.

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