2023 IL-1120-ST-VIllinois Department of Revenue-2026

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The document is the 2023 Form IL-1120, a Corporation Income and Replacement Tax Return for the Illinois Department of Revenue. It provides instructions for corporations to report their income, calculate taxes owed, and submit payments for tax years ending between December 31, 2023, and December 31, 2024. The form includes sections for identifying the corporation, detailing income or loss, calculating net income and replacement tax after credits, and determining any refunds or balances due.

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Click ‘Get Form’ to open the 2023 IL-1120-ST-V in our editor.
Begin by entering your corporation's complete legal name and mailing address in the designated fields. If applicable, check the box for a name change.
Indicate your tax year by filling in the beginning and ending dates. Ensure you enter your federal employer identification number (FEIN) accurately.
Proceed to Step 2 where you will calculate your income or loss. Enter figures from your federal return as instructed, ensuring all amounts are whole dollars only.
In Step 3, determine your base income or loss by following the prompts and attaching any necessary schedules as indicated.
Continue through Steps 4 to 9, carefully filling out each section related to income tax calculations, ensuring all required attachments are included.

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Versions	Form popularity	Fillable & printable
2023	4.2 Satisfied (29 Votes)
2022	4.8 Satisfied (31 Votes)
2021	4.8 Satisfied (52 Votes)
2020	4.4 Satisfied (249 Votes)
2019	4.3 Satisfied (157 Votes)
2018	4.3 Satisfied (201 Votes)
2017	4.4 Satisfied (189 Votes)
2016	4.4 Satisfied (113 Votes)
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2014	4.3 Satisfied (64 Votes)
2013	4 Satisfied (35 Votes)
2012	4.3 Satisfied (56 Votes)
2011	4.3 Satisfied (65 Votes)
1998	4 Satisfied (59 Votes)

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form 1120 corporation tax

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