Illinois Income Taxes and State Tax Forms

Illinois
"The Prairie State"

Start Federal and Illinois State Tax Returns

Start Illinois State Tax Return Only

Where is my Illinois State Tax Refund?

Where is my Federal Tax Refund?

How to file an Illinois Tax Extension

How to file an Illinois Tax Amendment

Prepare and efile Your Illinois State Tax Return

With the efile.com online tax software, it is easy for you to prepare and efile your Illinois state tax return and federal tax return together or separately (view the federal tax return filing requirements). The efile software helps you choose all the right state and federal forms, and you can prepare and efile as many state returns (resident, nonresident, or part-year resident) as you need for one price.

Illinois Income Tax Filing Deadlines

The regular deadline to file an Illinois state income tax return is April 15.

Tax Deadline Date	Type of Income Tax Return	Filing Deadline / Due Date Description
April 15, 2013	2012 Illinois State Tax Return	Due date for Illinois State Income Tax Returns - income tax filing deadline
April 15, 2013	2012 Illinois State Tax Extension	Due date for Illinois automatic extensions (and payment due date if tax is owed)
October 15, 2013	2012 Illinois State Tax Return	Last day to efile a 2012 Illinois State Income Tax Return for tax extension filers and late efilers

View all state tax return filing deadlines here.

Find federal income tax return filing deadlines here.

Illinois State Tax Forms

All of the following Illinois state tax forms are supported by the efile.com software:

Form/Schedule	Description	Can I efile this form?
Form 1040	Individual Income Tax Return	efile It efile It efile It
Schedule CR	Credit for Tax Paid to Other States
Schedule ED	Credit for Qualified Education Expenses
Schedule G	Voluntary Charitable Donations
Schedule ICR Section B	Education Expense Credit
Schedule M	Other Additions and Subtractions
Schedule MR	Military Spouse Relief
Schedule NR	Nonresident & Part-Year Resident Computation
Form 1040ES	Estimated Income Tax Payments for Individuals
Form 1040PC	Online e-Filing
Form 1040-V	Payment Voucher for Individual Income Tax
Form 1040-X	Amended Return
Form 1310	Statement of Person Claiming Refund Due a Deceased Taxpayer
Form 2210	Computation of Penalties for Individuals
Form 4562	Special Depreciation
Form 4852	Substitute for Unobtainable Form W2

Illinois State Tax Forms that Cannot be efiled

Form	Description
Form W-4	Illinois State Employees Withholding Allowance Certificate

IL Tax Extension

Extension Form	Illinois Extension Instructions	How to File
No form	Illinois grants an automatic six-month extension of time to file your state tax return. You do not have to file any form with Illinois to take advantage of the extension. The extended filing deadline is October 15. If you received an extension of more than six months to file your federal tax return, you are automatically allowed to receive the same extension of time to file your IL state return. The IL state tax extension is an extension of time to file, not to pay. If you owe state tax, you must also make a payment using Form IL-505-I, Automatic Extension Payment for Individuals, by April 15. You can also pay online with the Illinois Department of Revenue's agency website. After April 15, you will begin to owe penalties and interest on any unpaid taxes.	Work with a TaxPro goPRO Form IL-505-I

Extension Form

Illinois Extension Instructions

How to File

No form

Illinois grants an automatic six-month extension of time to file your state tax return. You do not have to file any form with Illinois to take advantage of the extension. The extended filing deadline is October 15.

If you received an extension of more than six months to file your federal tax return, you are automatically allowed to receive the same extension of time to file your IL state return.

The IL state tax extension is an extension of time to file, not to pay. If you owe state tax, you must also make a payment using Form IL-505-I, Automatic Extension Payment for Individuals, by April 15.

You can also pay online with the Illinois Department of Revenue's agency website. After April 15, you will begin to owe penalties and interest on any unpaid taxes.

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Form IL-505-I

Important Reminder! If you are efiling an Illinois tax extension, you may need to efile a federal tax extension as well.

IL Tax Amendment

Amendment Form	Illinois Amendment Instructions	How to File
Form IL-1040-X	If you have already filed or efiled your Illinois state return and you need to make corrections, you can file an amended return. To prepare an amended Illinois tax return, you must file Form IL-1040-X, Amended Individual Income Tax Return, by mail. You cannot efile an IL tax amendment.	Work with a TaxPro goPRO

Amendment Form

Illinois Amendment Instructions

How to File

Form IL-1040-X

If you have already filed or efiled your Illinois state return and you need to make corrections, you can file an amended return.

To prepare an amended Illinois tax return, you must file Form IL-1040-X, Amended Individual Income Tax Return, by mail. You cannot efile an IL tax amendment.

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Important Reminder! If you are filing an Illinois tax amendment, you may need to file a federal tax amendment as well.

Past Year Forms: Tax Year 2011 Illinois Tax Forms (Print, Fill Out, and Mail)
Form 1040	Individual Income Tax Return	Work with a TaxPro goPRO
Schedule CR	Credit for Tax Paid to Other States
Schedule ED	Credit for Qualified Education Expenses
Schedule G	Voluntary Charitable Donations
Schedule ICR Section B	Education Expense Credit
Schedule M	Other Additions and Subtractions
Schedule MR	Military Spouse Relief
Schedule NR	Nonresident & Part-Year Resident Computation
Form 1040ES	Estimated Income Tax Payments for Individuals
Form 1040PC	Online e-Filing
Form 1040-V	Payment Voucher for Individual Income Tax
Form 1040-X	Amended Return
Form 1310	Statement of Person Claiming Refund Due a Deceased Taxpayer
Form 2210	Computation of Penalties for Individuals
Form 4562	Special Depreciation
Form 4852	Substitute for Unobtainable Form W2

Where's My Refund? - Check Your IL State Tax Refund Status

Using efile and direct deposit is the fastest way to get your Illinois state tax refund. If you efile an Illinois state tax return, your refund will generally be processed within 1 week. If you file a paper return, it could take as long as 15 weeks to receive your state refund.

Check your Illinois tax refund status.

IL efile Error Codes

View a list of all Illinois State efile Income Tax Return Error Reject Codes.

Illinois Tax Facts

IL Income Tax:

Illinois taxes individual income at a single flat rate. For Tax Year 2010, this rate was 3%. For Tax Year 2011 and beyond, the state income tax rate is 5%.

IL Sales Tax:

The state of Illinois levies a 6.5% sales tax on most goods. The rate is 1% for certain food items, medicines, and medical items. Local governments levy additional sales taxes at various rates. Some things, like newspapers, and some large items (such as machinery used for farming or for the graphic arts) are exempt from sales tax.

More information on Illinois sales tax

IL Personal Property Tax:

In Illinois, real estate is taxed locally at different rates by several taxing districts, including municipalities, counties, townships, school districts, and special districts.

Odd Tax Fact:

To cash in on tourists, the city of Chicago taxes transportation, including taxis and trolleys.

State Tax Agency:

For more information, you can visit the website of the Illinois Department of Revenue.