Affidavit of Service: What It Must Say and How to Get It Witnessed
An affidavit of service proves a document was delivered. What it must say, who can witness it, and how to get it sworn by video call.
Published 30 June 2026
A statutory declaration is used outside court, for example by government bodies, banks and insurers. An affidavit is used in court and tribunal proceedings. Both are written statements of fact made in front of an authorised witness, which is why they are often confused.
A statutory declaration is a written statement of fact that a person signs in front of an authorised witness, usually a solicitor, and declares to be true. It is governed by the Statutory Declarations Act 1835.
Statutory declarations are used outside court, for example:
There is no standard form for most statutory declarations. The wording is written for the particular situation.
An affidavit is also a written statement of fact, sworn or affirmed in front of an authorised witness. The difference is that affidavits are used in legal proceedings.
Common uses include:
Because affidavits are court documents, they must follow the formatting rules of the court in question.
| Statutory declaration | Affidavit | |
|---|---|---|
| Used in | Non-court situations | Court and legal proceedings |
| Legal basis | Statutory Declarations Act 1835 | Court rules and common law |
| Format | Flexible | Set by the court |
| Who witnesses | Solicitor, commissioner for oaths, notary | Solicitor, commissioner for oaths |
| Wording | Written for the purpose | Follows court conventions |
If the document is going to a court or tribunal, you almost certainly need an affidavit. If it is going to a government body, a financial institution or a private organisation, and is not part of court proceedings, a statutory declaration is usually right.
If you are unsure, ask the organisation you are sending it to. It will tell you which it requires.
Yes. StatDec Hub witnesses both by video call. You sign live on the call, having not signed beforehand, then email the signed document to the solicitor, who countersigns it and emails it back, usually the same day. Nothing is posted. You will need a passport or driving licence, and the fee is £100 per document.
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