Lent Money and Not Getting Paid Back? [SEE VIDEO FOR DETAILS] You don’t always need a signed contract to sue for an unpaid loan. Courts can enforce oral loans if there’s convincing evidence — bank transfers, texts, emails, or witnesses. Preserve records and contact Wade Litigation for a confidential case review. Keywords: unpaid loan no written agreement, oral loan enforceable California, sue for unpaid loan, recover loan without contract, collect unpaid loan California