A Missouri Affidavit (Less Than $500) is a sworn written statement of facts that is used to resolve minor monetary disputes. This type of affidavit is specifically for disputes involving less than $500. The affidavit must be signed in the presence of a notary public, which is a person who is certified to witness the signing of documents and attests to the authenticity of the signer's identity. A Missouri Affidavit (Less Than $500) is typically used when parties in a dispute cannot reach an agreement on their own. The two main types of Missouri Affidavit (Less Than $500) are the Promissory Note Affidavit and the Debt Affidavit. The Promissory Note Affidavit is used when one party is owed money by another and the debt is evidenced by a promissory note. The Debt Affidavit is used when one party owes another money without any written evidence. The Missouri Affidavit (Less Than $500) must include the names and addresses of the parties involved in the dispute, the amount of money in dispute, and a detailed summary of the facts of the dispute. The affidavit must be signed by both parties and notarized. After the affidavit is completed, it must be filed with the court.