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Illinois Department of Revenue Amended Small Business Corporation Replacement Tax Return 2015 IL1120STX For tax years ending on or after December 31, 2015, Indicate what tax year you are amending:
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How to fill out for tax years ending

01
First, gather all necessary financial documents such as W-2 forms, 1099 forms, and receipts for deductible expenses.
02
Next, determine your filing status (single, married filing jointly, etc.) and choose the appropriate tax form.
03
Follow the instructions on the tax form to fill out your personal information, including your name, address, and social security number.
04
Enter all income information, including wages, self-employment income, and any other taxable income you received.
05
Calculate and claim any eligible tax deductions and credits, such as those for mortgage interest, education expenses, or child care.
06
Report any taxes already withheld from your income, such as those from your employer or retirement accounts.
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Complete the tax form's final calculations, which will determine your tax liability or refund amount.
08
Review your completed tax return for accuracy and make sure all required sections are filled out.
09
Sign and date the tax form, and include any necessary supporting documents.
10
Submit your completed tax return to the appropriate tax authority by the filing deadline.

Who needs for tax years ending?

01
Individuals who earn income, including wages, salaries, self-employment income, or investment income, may need to file tax returns for tax years ending.
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Business owners, both self-employed and those with employees, need to file tax returns for tax years ending.
03
Certain types of organizations, such as corporations, partnerships, and non-profit organizations, are also required to file tax returns for tax years ending.
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For tax years ending refers to the period for which tax returns are being filed, typically the calendar year or fiscal year in which income was earned.
Any individual or business entity that earned income during the designated tax year is required to file a tax return for tax years ending.
Taxpayers can fill out their tax returns for tax years ending by gathering all relevant financial documents, completing the necessary forms, and submitting them to the appropriate tax authorities.
The purpose of filing tax returns for tax years ending is to report income, deductions, and credits accurately to determine the amount of taxes owed or refunded by the taxpayer.
Taxpayers must report their total income, deductions, credits, and any other financial information relevant to the tax year on their tax returns for tax years ending.
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