An advance under a creditor repo or creditor quasi-repo is
treated as a money debt owed to the lender (or, if the lender is a
member of a partnership, to the partnership) by the person who
initially sold the securities. This money debt is treated as
arising from a transaction for the lending of money, so the lender
is treated as party to a creditor loan relationship in an amount
equal to the advance (s81 FA 1996).
The effect of treating the whole arrangement as a loan
relationship is that all amounts in the lender’s accounts in
respect of the advance in accordance with GAAP, including items
such as exchange gains and losses, are brought into account under
the loan relationship rules in Chapter 2 of Part 4 of FA 1996.