Cook Illinois IRS 1040-X Form 2019-2025

Cook Illinois IRS 1040-X 2025 Form: What You Should Know

To use the IRS e-file option, taxpayers will need to select the “e-File” option when they enter Form 1040-X information. Note: Taxpayers who file electronically may use Form 1040X as an alternative or alternative route to file Form W-2G, Wage and Tax Statement. To use Form 1040X with Form W-2G, the taxpayer must send Form 1040-X (Form 1040X-EZ) and Schedule H (Form 1040), along with a copy of the Forms W-2G, Payroll Expense Statement and Form 1020. The taxpayer must also attach all supporting documentation needed to verify information on the Form 1020. For more information on the e-file option, see IRS Frequently Asked Questions. Oct 11, 2025 — Form 1040-X will become effective for all taxpayers on that day, if the taxpayer is filing electronically and has filed Form 1040-IRS in the prior year. For details on 2025 amendments, including new information and new deadlines, see IRS Publication 17, Tax Guide for U.S. Individuals With Certain Dependents. For information on changes to Forms 1040X related to the replacement of Form 1041 with Form 1040 and Form 1040A with Form 1040EZ, see U.S. General Announcement 99-5. Oct 5, 2025 — On January 6, 2019, all taxpayers must file Form 1040X, amended tax return. For more details, see IRS publication 1, Use of Electronic Payment Services, Pub. 15, Electronic Fund Transfer. Oct 5, 2025 — On February 12, 2021, all taxpayers must file Form 1040X, amended tax return. The Form 1040 line of the tax form will become the Line 6a on Form 1040. A Form 1040 line is not used on an amended return on or after April 13, 2021. Oct 24, 2025 — Taxpayers who file electronically on or after October 24, 2021, must use Form 1040-X electronically to file information returns and amended returns, and information statement/information statement for individuals with nonresident alien dependents. To avoid a penalty, the return(s) and statement(s) must be timely filed and supporting documentation, evidence of income, and U.S. citizenship or other nonresident alien filing status must be submitted.

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