26 U.S.C. § 858: Dividends paid by real estate investment trust after close of taxable year

declares a dividend before the time prescribed by law for the filing of its return for a taxable year (including the period of any extension of time granted for filing such return), and distributes the amount of such dividend to shareholders or holders of beneficial interests in the 12-month period following the close of such taxable year and not later than the date of the first regular dividend payment made after such declaration, Except as provided in section 857(b)(9), amounts to which subsection (a) applies shall be treated as received by the shareholder or holder of a beneficial interest in the taxable year in which the distribution is made. In the case of amounts to which subsection (a) applies, any notice to shareholders or holders of beneficial interests required under this part with respect to such amounts shall be made not later than 30 days after the close of the taxable year in which the distribution is made (or mailed to its shareholders or holders of beneficial interests with its annual report for the taxable year).