{"product_id":"openai-gpt-4o-bank-statement-expense-reports-n8n","title":"OpenAI GPT-4o Bank Statement Expense Reports (n8n)","description":"\u003ch3\u003eUpload a bank statement and instantly generate an interactive expense report with OpenAI—inside n8n\u003c\/h3\u003e\n\u003cp\u003eThis n8n workflow takes your bank statement upload (CSV or text-based PDF), parses the transactions, uses \u003cstrong\u003eOpenAI\u003c\/strong\u003e (gpt-4o-mini) to categorize merchants, and returns a polished \u003cstrong\u003eHTML expense report\u003c\/strong\u003e with category totals, monthly summaries, recurring-charge detection, and a downloadable CSV.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReceives a file upload via an n8n Form trigger\u003c\/strong\u003e (production form URL from the “Upload Statement” trigger).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetects file type (PDF or CSV\/text)\u003c\/strong\u003e and extracts the text accordingly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParses and normalizes transactions\u003c\/strong\u003e—cleaning up dates, amounts, and descriptions into a structured transaction list.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeduplicates merchants\u003c\/strong\u003e and sends the unique merchant list to OpenAI to:\n    \u003cul\u003e\n      \u003cli\u003eassign a spending category,\u003c\/li\u003e\n      \u003cli\u003estandardize the payee\/merchant name.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComputes financial insights\u003c\/strong\u003e including spend\/income totals, category breakdowns, month-by-month summaries, largest transactions, and repeating charges with annualized cost.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenerates narrative commentary via OpenAI\u003c\/strong\u003e, including short observations and questions to validate.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilds an interactive HTML report\u003c\/strong\u003e (charts\/tables, recurring charges, full transaction table) and provides a \u003cstrong\u003eCSV download\u003c\/strong\u003e in the form response.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTurn quarterly bank-export statements into categorized expense reports for SaaS operations.\u003c\/li\u003e\n  \u003cli\u003eAudit spending trends by month and spot recurring charges you may want to renegotiate.\u003c\/li\u003e\n  \u003cli\u003eProvide finance-ready summaries to stakeholders without manual spreadsheet cleanup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpenAI\u003c\/strong\u003e: Uses an OpenAI Chat Model node (gpt-4o-mini) connected to the workflow’s AI processing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8n nodes \/ logic\u003c\/strong\u003e: if, code, form, merge, sticky note.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorkflow output\u003c\/strong\u003e: interactive HTML expense report + downloadable CSV, returned as the form response.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":45756674900147,"sku":"N8N-17753","price":31.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/VpQnfbP5LNb1bSARWyrd7_FVG2Qa3K.png?v=1785747782","url":"https:\/\/buyflowscripts.com\/products\/openai-gpt-4o-bank-statement-expense-reports-n8n","provider":"N8N Commerce","version":"1.0","type":"link"}