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News – Wednesday, August 27, 2025
FY 2026-01, 2025 Illinois Tax Delinquency Amnesty Act
The Illinois Tax Delinquency Amnesty Act provides the opportunity for taxpayers to pay outstanding eligible tax liabilities and to have eligible penalties and interest forgiven on taxes paid in full during the amnesty period.
What tax liabilities and periods are eligible for the 2025 Illinois Tax Amnesty Program?
Eligible liabilities are taxes due from periods ending after June 30, 2018, and prior to July 1, 2024.
How do I participate?
If you have an existing tax liability, make full payment of your eligible tax liability October 1, 2025, through November 17, 2025.
If you failed to file a tax return or incorrectly reported the liability due on a previously filed return for these tax periods, now is the time to file returns, make corrections, and pay the tax. You must file an original return for non-filed periods or file an amended return to make corrections.
See Informational Bulletin FY 2026-01, 2025 Illinois Tax Delinquency Amnesty Act, for more information. Additionally, more information can be found at the 2025 Illinois Tax Amnesty webpage.