Illinois Department of Revenue returns, schedules, and registration and related forms and instructions. These documents are in Adobe Acrobat Portable Document Format (PDF).

Individual Income Tax Forms Current Year Prior Years Use Tax Note: Illinois estate/inheritance taxes are not administered by the Illinois Department of Revenue. The Illinois estate tax is …

Informational Bulletin FY 2026-15, What’s New for Illinois Income Taxes News - Tuesday, December 23, 2025 Changes for 2025 Illinois Income Tax forms and schedules for individuals …

MyTax Illinois MyDec Business Incentives Reporting Lien Registry Tax Rate Database Related Sites State of Illinois Illinois Business Portal Illinois Liquor Control Commission Illinois …

Form Instructions Description ; IL-1040: Instructions (html) English (pdf) Español (pdf) Individual Income Tax Return. 02/2025 - IL-1040 Instructions Addendum regarding Line 39 B

2024 IL-1040 Form Instructions Mailing your income tax return: If no payment is enclosed, mail your return to: ILLINOIS DEPARTMENT OF REVENUE PO BOX 19041 SPRINGFIELD IL …

Use MyTax Illinois to electronically file your original Individual Income Tax Return. It’s easy, free, and you will get your refund faster.

File your 2024 IL-1040 without having a MyTax Illinois account (non-login option) Under the Individuals tab, select “File a 2024 IL-1040.” Follow the instructions to complete your return.

Name Description IL-1040 Instructions Individual Income Tax Return - General Instructions for the Unemployment Exclusion IL-1040-X Instructions Amended Individual Income Tax Return IL …

Forms IL-1040 and IL-1040-X Per Public Act 103-0592, the Volunteer Emergency Worker Credit was expanded to include IEMA volunteers, and the Child Tax Credit was added on Line 30. …