Allocation of excess reported amount

Except as provided in subclause (II), the excess reported amount (if any) which is allocable to the reported exempt-interest dividend amount is that portion of the excess reported amount which bears the same ratio to the excess reported amount as the reported exempt-interest dividend amount bears to the aggregate reported amount.

In the case of any taxable year which does not begin and end in the same calendar year, if the post-December reported amount equals or exceeds the excess reported amount for such taxable year, subclause (I) shall be applied by substituting “post-December reported amount” for “aggregate reported amount” and no excess reported amount shall be allocated to any dividend paid on or before December 31 of such taxable year.