Illinois sales tax form st 1 2026

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The document is the Illinois Department of Revenue's ST-1-X form, which is used for filing an amended Sales and Use Tax and E911 Surcharge Return. It provides instructions for businesses to identify their account, report the period they are amending, indicate reasons for filing an amended return, and correct financial information related to sales tax and surcharges. The form includes sections for detailing overpayments or underpayments, as well as a declaration of accuracy by the taxpayer.

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Click ‘Get Form’ to open the Illinois Sales Tax Form ST-1 in our editor.
Begin by identifying your business. Fill in your Account ID and Business Name, and specify the Reporting Period you are amending.
Next, mark the reason for filing an amended return. Choose from options such as Overpaid, Underpaid, or Corrections to line items.
If you selected Overpaid, complete Step 3 by indicating why you believe you have overpaid your return. Provide details as necessary.
Proceed to Step 4 where you will correct your financial information. Enter figures in Column A (most recent) and Column B (as they should have been filed).
Finally, sign the form in Step 5 under penalties of perjury, ensuring all information is accurate before submission.

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2024	4.7 Satisfied (40 Votes)
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il st 1 instructions

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