62Instead of applying paragraph 25, an entity shall recognise a group of reinsurance contracts held:

62 Instead of applying paragraph 25, an entity shall recognise a group of reinsurance contracts held:
(a) if the reinsurance contracts held provide proportionate coverage—at the beginning of the coverage period of the group of reinsurance contracts held or at the initial recognition of any underlying contract, whichever is the later; and
(b) in all other cases—from the beginning of the coverage period of the group of reinsurance contracts held.

Measurement

...
65 The requirements of paragraph 38 that relate to determining the contractual service margin on initial recognition are modified to reflect the fact that for a group of reinsurance contracts held there is no unearned profit but instead a net cost or net gain on purchasing the reinsurance. Hence, unless paragraph 65A applies, on initial recognition: (a) the entity shall recognise any net cost or net gain on purchasing the group of reinsurance contracts held as a contractual service margin measured at an amount equal to the sum of:
(a) the fulfilment cash flows;,
(b) the amount derecognised at that date of any asset or liability previously recognised for cash flows related to the group of reinsurance contracts held;, and
(c) any cash flows arising at that date; and
(d) any income recognised in profit or loss applying paragraph 66A.; unless
65A If (b) the net cost of purchasing reinsurance coverage relates to events that occurred before the purchase of the group of reinsurance contracts held, in which case, notwithstanding the requirements of paragraph B5, the entity shall recognise such a cost immediately in profit or loss as an expense.
66 Instead of applying paragraph 44, an entity shall measure the contractual service margin at the end of the reporting period for a group of reinsurance contracts held as the carrying amount determined at the start of the reporting period, adjusted for:
...
(ba) income recognised in profit or loss in the reporting period applying paragraph 66A;
(bb) reversals of a loss-recovery component recognised applying paragraph 66B (see paragraph B119F) to the extent those reversals are not changes in the fulfilment cash flows of the group of reinsurance contracts held;
(c) changes in the fulfilment cash flows, measured at the discount rates specified in paragraph B72(c), to the extent that the change relates to future service, unless:
(i) relates to future service; unless
(i)(ii) the change results from a change in fulfilment cash flows allocated to a group of underlying insurance contracts that does not adjust the contractual service margin for the group of underlying insurance contracts; or.
(ii) the change results from applying paragraphs 57‒58 (on onerous contracts), if the entity measures a group of underlying insurance contracts applying the premium allocation approach.
...
66A An entity shall adjust the contractual service margin of a group of reinsurance contracts held, and as a result recognise income, when the entity recognises a loss on initial recognition of an onerous group of underlying insurance contracts or on addition of onerous underlying insurance contracts to a group (see paragraphs B119C‒B119E).
66B An entity shall establish (or adjust) a loss-recovery component of the asset for remaining coverage for a group of reinsurance contracts held depicting the recovery of losses recognised applying paragraphs 66(c)(i)‒(ii) and 66A. The loss-recovery component determines the amounts that are presented in profit or loss as reversals of recoveries of losses from reinsurance contracts held and are consequently excluded from the allocation of premiums paid to the reinsurer (see paragraph B119F).
...