GIM6250 - Technical provisions: periods of account beginning on or after 1 January 2000: General Insurance Reserves (Tax) Regulations: discounting

Regulation 3: Rule 5: discounting

The “liabilities” defined in Rule 3 (the costs of settling the original provisions as at the recalculation date) are to be discounted between the balance sheet date and their date of payment. This period is the “discount period” and extends for no more than ten years after the original provisions arose. Liabilities that are settled (including provisions for claims still outstanding) after the ten-year point will therefore reflect the cost of settling those liabilities, discounted for ten years only. For the purposes of the calculation the new provision made at the recalculation date in respect of any remaining liabilities is treated as if it was a claim paid on that date. Other costs of settling liabilities are discounted from the actual date of payment.

The discount rate to be used is prescribed in the regulations by reference to the earlier period of account. This means that the same discount rate will always be used for the recalculation of a given earlier period. So given that the discount rate for the 2000 period of account was 2.79%, any liabilities of the 2000 period of account settled on 31 December 2005 would be discounted at 2.79% for five years. As the discount rate for the 2001 period of account was 2.742%, any liabilities for that period settled on 31 December 2005 would be discounted at 2.742% for four years.

Rule 5.4 sets out the formulae used in calculating the discount rates to be applied in the calculations. The sterling discount rate is set annually and is calculated from 5 year UK Gilts rates (averaged over five days around the end of the period of account) less a 2.3% risk margin. Where the calculations are made in one of six other currencies, a specific discount rate is used for that currency, based on the LIBOR rate on 12 month deposits (shown on the BBA website), again less the 2.3% margin. The rates so far have been

Accounting period

Currency31/12/0031/12/0131/12/0231/12/03
Sterling2.79%2.742%1.944%2.4%
Euro1.68609%1.58679%0.68950%0.26625%
US dollar2.94109%0.67091%0%0%
Canadian dollar2.49692%0.55258%0.90358%0.68792%
Australian dollar2.75109%2.61779%2.65775%3.68125%
Swiss franc0.34692%0.27258%0%0%
Japanese yen0%0%0%0%

Accounting period

Currency31/12/0431/12/0531/12/06
Sterling2.186%1.86%2.734%
Euro0%0.13688%1.19088%
US dollar0.35475%2.12875%2.520275%
Canadian dollar0.07808%1.32042%1.40775%
Australian dollar2.72725%2.99375%3.79775%
Swiss franc0%0%0%
Japanese yen0%0%0%


A rate that is less than zero is set to zero – Rule 5.4(b).

The discount for each liability should in principle be computed separately but statistical methods can be used where these give approximately the same result. For example, it may be appropriate to assume that all claims are paid exactly half way through the period, providing this gives approximately the same result as individual calculations. It would not be appropriate to assume (unless of course the facts of the case support it) that liabilities are settled on the first day of the period, as this would understate the effect of discounting.

The aggregate of the discounted liabilities is known as “the recalculated provisions” for the earlier period of account.