Illinois Department of Revenue

07/02/2025 | Press release | Archived content

IDOR Urges Late Tax Filers to Take Prompt Action

The Illinois Department of Revenue (IDOR) is reminding taxpayers who missed the April 15, 2025, income tax filing deadline that it is not too late to file and that prompt action can help minimize penalties and interest if a balance is owed.

For the full Press Release, see Illinois Department of Revenue Urges Late Tax Filers to Take Prompt Action.

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