Embodiments of the invention provide for systems to determine potential fraudulent activity associated with online financial transaction identity-based transaction decisioning, to electronically determine decisions for transactions such as account opening, and the like. The embodiments herein described accurately provide a system tool to prevent fraudulent transactions from occurring, such as preventing accounts from being opened by individuals who present an identity risk and efficiently identify such risky applicants early in an automated decisioning process. Specific embodiments provide for electronically determining a transaction decision based on applying business rules to potential fraud indicators. In other embodiments of the invention, a decisioning score is determined that takes into account the application of predetermined business rules to potential fraud indicators.