(1) An assessable mutual shall file a financial statement within 90 days of the end of its accounting year. The requirements of s. 624.470 shall apply, except an entry for future investment income, reported on or after January 1, 1998, may only be reflected as an aggregate write-in asset on the balance sheet of the annual and quarterly financial statements. Future investment income shall be calculated as the sum of the admitted asset value of Line 1 (Bonds) plus the admitted asset value of Line 6 (Cash and Short-Term Investments) as reported on page 2 in the annual or quarterly financial statement, times the 3-year treasury note yield as of the date of the financial statement, times 3. (2) For financial statements filed on or after January 1, 1998, future investment income may only be reported as an admitted asset by an assessable mutual which reported future investment income in financial statements filed with the former Department of Insurance prior to December 31, 1996.
