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Tagged: Illinois Individual Income Tax

Illinois

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Illinois Individual Income Tax Forms(Tax Year 2025)

Illinois individual income taxes are administered by the Illinois Department of Revenue. This page provides official resources for Illinois individual income tax forms for tax year 2025, filed in 2026. File Illinois Income Tax...

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Illinois Individual Income Tax

Form IL-1040 Illinois Individual Income Tax Return Form IL-1040 Instructions More Forms IL-1040 Due Date The due date for fi ling your 2011 Form IL-1040 and paying any tax you owe is extended to...