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Form 4466 (Rev. October 2018) - IRS
File Form 4466 after the end of the corporations tax year, and no later than the due date for filing the corporations tax return (not.
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Topic No. 308 Amended Returns | Internal Revenue Service
Sep 23, 2022 If the filing due date falls on a Saturday, Sunday, or legal holiday, your amended return is timely if filed or paid the next business day. If
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26 CFR 1.338-10 - Filing of returns. - Law.Cornell.Edu
Old targets final return is generally due on the 15th day of the third calendar month following the month in which the acquisition date occurs.
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