5. Agreement as to payment of stamp duty on instruments.

(1) Where in the opinion of the Commissioners it is inexpedient or impractical for any person carrying on a business and who -

(a) in the course of that business, is a party to instruments liable to stamp duty under Schedule 1, or

(b) acts as agent for any such party,

to pay stamp duty in respect of each such instrument, then the Commissioners may enter into an agreement with that person for the delivery to them of accounts for specified periods giving such particulars as may be required of such instruments.

(2) The agreement shall be in such form and shall contain such terms and conditions as the Commissioners consider proper.

(3) Where an agreement has been entered into under this section between the Commissioners and any person, and any instrument to which the agreement relates -

(a)

(i) is issued during the period the agreement is in force, where the agreement is one that relates to the issue of such instrument, or

(ii) is processed during the period the agreement is in force, wher

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