Under the Civil Procedure Rules Practice Direction 32, you can make this type of amendment to an affidavit.
Section 8.1 states:
"Any alteration to an affidavit must be initialled by both the deponent and the person before whom the affidavit was sworn."
For further information, see Execution of Documents (3rd edition) which is available to purchase from our online bookshop.
Disclaimer: While every effort has been made to ensure the accuracy of the information in this article, it does not constitute legal advice and cannot be relied upon as such. The Law Society does not accept any responsibility for liabilities arising as a result of reliance upon the information given.
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