Section 208.1243 - [Repealed 12/31/2031] Insurance Company; Tax; Imposition; Tax Year As Calendar Year; Filing Annual Return; Calculation of Estimated Payment; Disclosure of Tax Return(1) An insurance company is subject to the tax imposed by this chapter or by section 476a of the insurance code of 1956, 1956 PA 218, MCL 500.476a, if applicable, whichever is greater.(2) The tax year of an insurance company is the calendar year.(3) Notwithstanding section 505, an insurance company shall file the annual return required under this act before March 2 after the end of the tax year, and an automatic extension under section 505(4) is not available.(4) For the purpose of calculating an estimated payment required by section 501, the greater of the amount of tax imposed on an insurance company under this chapter or under section 476a of the insurance code of 1956, 1956 PA 218, MCL 500.476a, shall be considered the insurance company's tax liability for the immediately preceding tax year.(5) The requirements of section 28(1)(f) of 1941 PA 122, MCL 205.28, that prohibit an employee or authorized representative of, a former employee or authorized representative of, or anyone connected with the department from divulging any facts or information obtained in connection with the administration of a tax, do not apply to disclosure of a tax return required by this section.Repealed by 2019, Act 90,s 7, eff. 12/31/2031.Repealed by 2011, Act 39,s 7, eff. on the date that the secretary of state receives a written notice from the department of treasury that the last certificated credit or any carryforward from that certificated credit has been claimed.Added by 2007, Act 36,s 18, eff. 1/1/2008.Repealed effective 12/31/2031 -- Enacting section 1 of 2019, Act 90 provides: "The Michigan business tax act, 2007 PA 36, MCL 208.1101 to 208.1601, is repealed effective for tax years that begin after December 31, 2031."Contingent repeal -- See Enacting section 1 of 2011, Act 39,s 7