Hello John, Its working 3 of this question in BPP kit 2017 edition, calculating tax shield on BOND of 18m, he discounts it with 7 years annuity factor. Where is this 7 year annuity come from? I can’t figure it out nor I find any supporting information regarding this in the question. It does say though that no Medium or long term loan is redeemable prior to 20X6. Could you suggest please. Thanks