Aider is an AI-powered period close automation and advisory tool built for accounting and bookkeeping firms. Acquired by Karbon in September 2025, Aider integrates directly with QuickBooks Online and Xero, giving firms a real-time, automated view of their entire client portfolio. Aider automates period close checks, flags anomalies, reconciles transactions, and surfaces actionable insights across every client from a single dashboard. AI Advisory Assistants and AI-generated Performance Reports help firms scale advisory without increasing workload. Aider is purpose-built for firms managing close across tens or hundreds of clients who need consistency, accuracy, and speed. Aider's core value is simple: automate the close so your team can focus on higher-value work. Firms that use Aider close faster, catch issues earlier, and create the capacity to deliver proactive advisory at scale, growing client value without growing headcount.