If a fiduciary determines that an allocation between principal and income required by s. 738.602, s. 738.603, s. 738.604, s. 738.605, or s. 738.608 is insubstantial, the fiduciary may allocate the entire amount to principal unless one of the circumstances described in s. 738.104(3) applies to the allocation. This power may be exercised by a cofiduciary under the circumstances described in s. 738.104(4) and may be released for the reasons and in the manner described in s. 738.104(5). An allocation is presumed to be insubstantial if:
Fla. Stat. § 738.601