Stacks is a software platform that helps accounting teams automate and manage the financial close process with AI-driven tools that handle tasks like reconciliations, journal entries, variance analysis, and reporting in a unified workspace. It provides features to track closed tasks, match transactions, flag discrepancies, and connect directly with Enterprise Resource Planning systems to give real-time insights into financial data. The platform is designed to centralize close activities, reduce manual work, and offer visibility into progress and trends across the monthly close cycle. Stacks includes security controls such as encrypted data and permissioned access to protect sensitive accounting information. The company positions its solution as a way for finance groups to reduce time spent on repetitive tasks and shift focus to analysis and oversight.