Overview
Tiller imports spending, income, debt, and balances into private Google Sheets and Microsoft Excel workbooks. It supplies structured transaction and balance sheets, templates, categories, rules, reports, and daily account updates, while leaving the spreadsheet under the customer’s control. AI is optional: users can analyze the workbook with ChatGPT, Claude, Gemini, or Copilot, use Tiller’s AI Suggest categorization, or connect Tiller MCP for Claude. Tiller says the MCP connector can answer questions and update authorized transaction categories and notes. The service is proprietary and subscription-based.