434R8.6. A registrant who has elected to determine the net tax of the registrant in accordance with sections 434R8.1 to 434R8.14 ceases to be a registrant who may so determine that net tax at the earliest of(1) if the threshold amount for the second or third fiscal quarter in a fiscal year of the registrant exceeds $1,000,000, the end of the first fiscal quarter in that fiscal year for which the threshold amount exceeds $1,000,000;
(2) if the threshold amount for a fiscal year of the registrant exceeds $1,000,000, the end of the first fiscal quarter in that fiscal year;
(3) if the registrant is not a public service body and the purchase threshold of the registrant for a particular day exceeds $4,000,000, the end of the preceding day;
(4) if the registrant is a public service body and the purchase threshold for a fiscal year of the registrant exceeds $4,000,000, the end of the first fiscal quarter in that fiscal year; and
(5) if the registrant becomes a person referred to in the definition of “listed financial institution” in section 1 of the Act during a fiscal quarter of the registrant, the end of that fiscal quarter.