(1) The amount of a deposit maintained by a holder of a licence in the Bank pursuant to section 7 of this Act (in this section referred to as the deposit) shall be five per cent of the total deposits (including deposits on current accounts) at offices in the State of the holder but shall not be less than £20,000 nor more than £500,000.

(2) The amount of the deposit shall be calculated by the Bank as soon as may be after the commencement of this section or at the time of the application for the licence as may be appropriate and shall be re-calculated twice yearly (at intervals which, in so far as is practicable, are of equal length) by reference to returns made by the holder of the licence to the Bank under section 18 of this Act.

(3) The amount of the deposit shall, where necessary, be increased to the appropriate amount re-calculated under subsection (2) of this section by the holder of the licence concerned not later than seven days after the date of the receipt by him of notification from the Bank of the amount required to effect the increase.

(4) The Bank may settle the amount of the deposit at the nearest round figure in hundreds of pounds.