Get Il Dor Il-1040-x 2023-2025

Box 19029, Springfield, Illinois 62794-9029.

If your change decreases the tax due to Illinois and you want a refund, you must file an amended return (claim for overpayment) within three years after the extended due date, three years after the date your original return was filed, or one year after the date your Illinois tax was paid, whichever is latest.

You should file Form IL-1040-X, Amended Individual Income Tax Return, if you need to change a previously filed Form IL-1040, Individual Income Tax Return, due to a change that affects items used to figure your Illinois net income or credits.

You must file a Form IL-1040, Individual Income Tax Return, if you are an Illinois resident and: You were required to file a federal income tax return. You were not required to file a federal return, but your Illinois base income is greater than your exemption allowance.

600 N. Robert St. When mailing your return, you must include a copy of your federal income tax return (including schedules) and any income tax returns you filed with other states.

Usually, you'll file an amended state tax return only if the changes to your federal return affect your state tax liability. Ex: Some states require you to report the changes within a specified time after filing the federal amended return.

Three-year time limit. You usually have three years from the date you filed your original tax return to file Form 1040X to claim a refund. You can file it within two years from the date you paid the tax, if that date is later.

Am I required to include my federal tax return with my state of Illinois return? Yes, you need to send a copy of your federal tax return with your state return.

Although the IRS appreciates when taxpayers file an amended return to correct a mistake, they can still assess a penalty or charge interest for not paying the proper amount when the taxes were originally due.