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Get the free Attach to your Form IL-1120, IL-1041, IL-990-T

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Attach a copy of the IRC 965 Transition Tax Statement to your return. If you are ... You must file Form IL-1041 if you are a fiduciary of a trust or an estate and the trust or the ... Form IL-990-T,
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Attach to your form is additional documentation or supporting materials that are required to be submitted along with your main form.
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