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Illinois Department of Revenue. IL-1120-X Instructions. 2017. What's new for 2017? Public Act 100-0022 increased the income tax rate during the 2017 tax year ...
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How to fill out il-1120-x

How to fill out il-1120-x
01
Step 1: Download the IL-1120-X form from the official website of the Illinois Department of Revenue.
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Step 2: Read the instructions carefully to understand the eligibility criteria and requirements for filling out the IL-1120-X form.
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Step 3: Gather all the necessary supporting documents, such as amended federal tax returns and documentation for the changes being made.
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Step 4: Fill out the general information section of the form, including the name of the corporation, Employer Identification Number (EIN), and tax year being amended.
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Step 5: Provide detailed information about the changes being made in Part I of the form. This may include adjustments to income, deductions, credits, or changes in the federal taxable income.
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Step 6: Complete Part II of the form to calculate the Adjusted Net Income (Loss). This section requires the taxpayer to perform specific calculations.
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Step 7: Fill out Part III of the form to reconcile the Illinois net income with the adjusted net income. This section also requires careful calculations.
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Step 8: If applicable, complete Part IV of the form to claim any overpayment or request a refund.
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Step 9: Review the completed form and ensure that all information is accurate and properly entered.
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Step 10: Sign and date the IL-1120-X form. If filing it electronically, follow the provided instructions for submission.
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Step 11: Keep a copy of the completed IL-1120-X form and all supporting documents for your records.
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Step 12: Submit the IL-1120-X form to the Illinois Department of Revenue by mail or through the designated online portal.
Who needs il-1120-x?
01
Corporations or partnerships that need to amend their previously filed IL-1120 tax returns.
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Taxpayers who have identified errors, omissions, or changes in their Illinois tax filings that require correction.
03
Business entities that need to adjust their Illinois net income due to changes in federal taxable income or changes in applicable deductions, credits, or adjustments.
04
Entities seeking to claim a refund or make payment adjustments based on accurate reporting of their tax liabilities in Illinois.
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What is il-1120-x?
IL-1120-X is a form used for filing an amended Illinois Corporation Income and Replacement Tax Return.
Who is required to file il-1120-x?
Any corporation or entity that needs to amend their Illinois Corporation Income and Replacement Tax Return is required to file IL-1120-X.
How to fill out il-1120-x?
IL-1120-X can be filled out by providing the required information on the form, including the reason for the amendment and the correct figures for income, deductions, and credits.
What is the purpose of il-1120-x?
The purpose of IL-1120-X is to allow corporations or entities to correct errors or make changes to their previously filed Illinois Corporation Income and Replacement Tax Return.
What information must be reported on il-1120-x?
On IL-1120-X, the taxpayer must report the corrected figures for income, deductions, and credits, as well as the reason for the amendment.
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