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File Form IL-1040-X, Amended Individual Income Tax Return ...

File Form IL-1040-X, Amended Individual Income Tax Return, on MyTax Illinois

Use MyTax Illinois to electronically file your Amended Individual Income Tax Return. It's fast, easy, and free.


You are eligible to file your IL-1040-X via MyTax Illinois if you

filed Form IL-1040 electronically for...

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Corporate income tax

Corporate Income Tax Return is federal taxable income, which is income minus deductions. Next, the federal taxable income is changed by adding back certain items (e.g., state, municipal, and other interest income excluded from federal taxable income) and subtracting others (e.g., interest income from U.S. Treasury obligations). The result is “base income.”

Filing Requirements

You must file...

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Due Date/Extension to File Income Tax Return (2017 IL-1040)

Your Illinois filing period is the same as your federal filing period. We will assume that you are filing your Form IL-1040 for calendar year 2017 unless you indicate a different filing period in the space provided at the top of the return. The due date for calendar year filers is April 17, 2018.


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Related topics : file a federal income tax return extension / extension of income tax return due date / federal tax return extension due date / automatic extension income tax return / individual income tax return due date 2018

Withholding (Payroll) - Illinois Department of Revenue

FSET (For Large Employers/Payroll Companies)


Generally, you must withhold Illinois Income Tax if you are required to withhold (or have a voluntary agreement to withhold) federal income tax from payments you make for

employee compensation (i.e., wages and salaries) paid in Illinois;

gambling or lottery winnings in Illinois paid to an Illinois resident;

unemployment paid to an Illinois...

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Related topics : income tax return form 2017 / federal tax filing income requirements / federal tax return income requirements / income tax return form / file federal income tax return electronically

Where's My Refund? - Illinois Department of Revenue

Where's My Refund?

Where is my refund?

Use Where's My Refund? to find out if the Illinois Department of Revenue has initiated the refund process. For more specific information about the status of your refund after the Illinois Department of Revenue has finished processing it, you can check the Illinois Comptroller's Find Your Illinois Tax Refund System .

What do I do if my refund is different than what was shown on my return?

If your refund amount is different than what is shown on your return, you will receive a notice within 7 to 10 business...

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Related topics : check on tax return refund / tax refund return / tax return electronic filing / prior year tax return direct deposit / direct deposit tax return how long