Supplemental Affidavit Template for England and Wales

When you've filed an affidavit with the court but later discover additional information that needs to be included, a Supplemental Affidavit allows you to formally present this new evidence or make necessary corrections. This sworn document carries the same legal weight as your original affidavit and becomes part of the official court record in your proceedings.

When do you need this document?

You'll need a Supplemental Affidavit when circumstances change after filing your original sworn statement. Common situations include discovering new evidence that supports your case, realising you omitted crucial information from your initial affidavit, or needing to correct factual errors that could affect the outcome of your proceedings. It's also required when court orders specifically request additional information or when your legal representatives advise that supplementing your original evidence would strengthen your position. Time-sensitive situations often arise where new witnesses come forward or documents are discovered that weren't available when you filed your original affidavit.

Key legal considerations

Your Supplemental Affidavit must clearly reference the original affidavit it supplements, including case details and filing dates. The document requires the same formal structure as your original affidavit, with a statement of truth confirming the accuracy of the new information. You cannot use a supplemental affidavit to contradict or withdraw statements from your original affidavit without explaining the discrepancy. The timing of filing is crucial – courts expect prompt disclosure of new information, and delays could affect how the evidence is received. Remember that making false statements in any affidavit constitutes perjury under the Perjury Act 1911, carrying serious criminal penalties including potential imprisonment.

Legal requirements in England and Wales

Under Civil Procedure Rules Part 22, your Supplemental Affidavit must include a formal statement of truth and be properly sworn before an authorised person such as a Commissioner for Oaths. The document must clearly identify the deponent with full name, address, and occupation, and reference the specific court and case number. The Civil Evidence Act 1995 governs admissibility, ensuring your supplemental evidence meets court standards. Your affidavit must be signed in the presence of the Commissioner for Oaths, who will verify your identity and administer the oath. The Commissioners for Oaths Act 1889 establishes the authority for oath administration, while the Statutory Declarations Act 1835 provides the foundational execution requirements. Proper service on all parties may be required depending on your case circumstances and court directions.