The amount of the discounted unpaid losses as of the end of any taxable year shall be the sum of the discounted unpaid losses (as of such time) separately computed under this section with respect to unpaid losses in each line of business attributable to each accident year.
In no event shall the amount of the discounted unpaid losses with respect to any line of business attributable to any accident year exceed the aggregate amount of unpaid losses with respect to such line of business for such accident year included on the annual statement filed by the taxpayer for the year ending with or within the taxable year.
Except as otherwise provided in this subsection, the term “undiscounted unpaid losses” means the unpaid losses shown in the annual statement filed by the taxpayer for the year ending with or within the taxable year of the taxpayer.
For purposes of this section, the rate of interest determined under this subsection shall be the annual rate determined by the Secretary under paragraph (2).
The annual rate determined by the Secretary under this paragraph for any calendar year shall be a rate determined on the basis of the corporate bond yield curve (as defined in section 430(h)(2)(D)(i), determined by substituting “60-month period” for “24-month period” therein).
For each determination year, the Secretary shall determine a loss payment pattern for each line of business by reference to the historical loss payment pattern applicable to such line of business. Any loss payment pattern determined by the Secretary shall apply to the accident year ending with the determination year and to each of the 4 succeeding accident years.
In the case of any line of business not described in subparagraph (A)(ii), losses paid after the 1st year following the accident year shall be treated as paid equally in the 2nd and 3rd year following the accident year.
The period taken into account under subparagraph (A)(ii) shall be extended to the extent required under subclause (II).
The amount of losses which would have been treated as paid in the 10th year after the accident year shall be treated as paid in such 10th year and each subsequent year in an amount equal to the amount of the average of the losses treated as paid in the 7th, 8th, and 9th years after the accident year (or, if lesser, the portion of the unpaid losses not theretofore taken into account). To the extent such unpaid losses have not been treated as paid before the 24th year after the accident year, they shall be treated as paid in such 24th year.
For purposes of this section, the term “determination year” means calendar year 1987 and each 5th calendar year thereafter.
The term “accident year” means the calendar year in which the incident occurs which gives rise to the related unpaid loss.
The term “unpaid losses” includes any unpaid loss adjustment expenses shown on the annual statement.
The term “annual statement” means the annual statement approved by the National Association of Insurance Commissioners which the taxpayer is required to file with insurance regulatory authorities of a State.
The term “line of business” means a category for the reporting of loss payment patterns determined on the basis of the annual statement for fire and casualty insurance companies for the calendar year ending with or within the taxable year, except that the multiple peril lines shall be treated as a single line of business.
The term “multiple peril lines” means the lines of business relating to farmowners multiple peril, homeowners multiple peril, commercial multiple peril, ocean marine, aircraft (all perils) and boiler and machinery.