AI LINE Expense Tracker: GPT-4 Parses Text/Images to Google Sheets

This n8n workflow creates a no-code LINE bot that acts as an intelligent expense tracker. Users send text descriptions or photos of receipts via LINE, and the bot uses GPT-4 to parse details like amount, category, date, merchant, and notes, then appends them directly to a Google Sheet ledger.

Key benefits include hands-free expense logging—speak or snap a photo anytime—saving hours of manual entry. It's multilingual (supports English/Chinese), customizable fields, and requires minimal setup: Google Sheets OAuth, LINE webhook, and OpenAI key. Ideal for personal finance, freelancers, or small teams ditching spreadsheets for AI automation.

Use cases: Busy professionals tracking daily spends; travelers logging receipts on-the-go; families sharing a household budget sheet. The workflow handles text/image routing via Switch node, AI Agent with structured output for accuracy, ensuring reliable data extraction without coding.

Setup is straightforward: Activate Sheets API, prep your sheet template, paste webhook URL to LINE console, and configure AI prompts. Once live, it scales for high-volume use, turning casual chats into organized financial records.