{ "name": "Smart Tax Accountant: Auto-Categorize Receipts for Tax Return", "nodes": [ { "parameters": { "content": "## \ud83e\uddfe Smart Tax Accountant\n\nAutomate your tax return prep. Upload a receipt image, and **Gemini** will extract the details and categorize the expense (e.g., \"Supplies\", \"Travel\") automatically.\n\n## How it works\n1. **Input:** Upload receipt via **n8n Form** (or use Test Mode).\n - *Includes a **Test Mode** to simulate a \"Coffee at Starbucks\" receipt.*\n2. **Analyze:** Gemini (Vision) reads the image to extract Date, Amount, and Vendor.\n3. **Categorize:** Gemini determines the tax category (Account Title) based on the content.\n4. **Log:** Saves clean data to **Google Sheets** for your tax filing.\n\n## Setup steps\n1. **Connect:** Google Gemini, Google Sheets.\n2. **Config:** Open **\"Config\"** to set Sheet ID.\n3. **Test:** Set `TEST_MODE` to `true` to verify the logic instantly.", "height": 380, "width": 500, "color": 3 }, "id": "01030e59-6d53-4067-acfb-1d93710c06a6", "name": "Sticky Note - Main", "type": "n8n-nodes-base.stickyNote", "typeVersion": 1, "position": [ -1248, 48 ] }, { "parameters": { "content": "## \u2699\ufe0f Configuration\nSet Sheet ID & Mode.", "height": 140, "color": 6 }, "id": "1c7f9e94-137c-4875-bd73-281b5d0b595b", "name": "Sticky Note - Config", "type": "n8n-nodes-base.stickyNote", "typeVersion": 1, "position": [ -496, 32 ] }, { "parameters": { "content": "## \ud83d\udcf8 Receipt Input\nForm Upload or Mock.", "height": 340, "width": 760, "color": 6 }, "id": "04d5607d-fdd3-4187-a5c6-72420f527de2", "name": "Sticky Note - Input", "type": "n8n-nodes-base.stickyNote", "typeVersion": 1, "position": [ -208, 32 ] }, { "parameters": { "content": "## \ud83e\udde0 AI Accountant\nExtracts & Categorizes.", "height": 140, "width": 440, "color": 6 }, "id": "645d25ae-13bd-420e-8b23-b230027b6756", "name": "Sticky Note - AI", "type": "n8n-nodes-base.stickyNote", "typeVersion": 1, "position": [ 624, 32 ] }, { "parameters": { "content": "## \ud83d\udcca Tax Database\nLogs to Sheets.", "height": 140, "width": 380, "color": 6 }, "id": "ebea3a83-e55b-4d3e-a6f5-e6ce73ac879f", "name": "Sticky Note - DB", "type": "n8n-nodes-base.stickyNote", "typeVersion": 1, "position": [ 1104, 32 ] }, { "parameters": { "assignments": { "assignments": [ { "id": "id-1", "name": "SHEET_ID", "value": "", "type": "string" }, { "id": "id-2", "name": "TEST_MODE", "value": "true", "type": "string" } ] }, "includeOtherFields": true, "options": {} }, "id": "cac924da-5a46-4c80-9430-0bc7372f5bdc", "name": "Config", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ -384, 96 ] }, { "parameters": { "formTitle": "\ud83e\uddfe Receipt Uploader", "formDescription": "Upload a receipt image for tax categorization.", "formFields": { "values": [ { "fieldLabel": "Receipt Image", "fieldType": "file", "requiredField": true } ] }, "options": {} }, "id": "b4c86477-8a23-47d5-8034-e1bead974bc8", "name": "Form Trigger", "type": "n8n-nodes-base.formTrigger", "typeVersion": 2.3, "position": [ -624, 96 ] }, { "parameters": {}, "id": "f1b4e134-8341-4cac-b3d6-e4eb010e64f8", "name": "Manual Trigger", "type": "n8n-nodes-base.manualTrigger", "typeVersion": 1, "position": [ -624, 240 ] }, { "parameters": { "rules": { "values": [ { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict" }, "conditions": [ { "leftValue": "", "rightValue": "", "operator": { "type": "string", "operation": "equals" } } ], "combinator": "and" } } ] }, "options": {} }, "id": "cd48412a-b1c7-41ad-9d5c-8f62fc34dcbf", "name": "Test Mode?", "type": "n8n-nodes-base.switch", "typeVersion": 3.2, "position": [ -48, 80 ] }, { "parameters": { "jsCode": "// Simulate Receipt Data (Gemini Output)\nreturn [{\n json: {\n vendor: \"Starbucks Coffee\",\n date: \"2026-02-12\",\n amount: 850,\n currency: \"JPY\",\n category: \"Meeting Expenses (\u4f1a\u8b70\u8cbb)\",\n summary: \"Coffee meeting with client\"\n }\n}];" }, "id": "394dd1a0-06a8-4193-ba96-887a833ff478", "name": "Mock Receipt Data", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 224, 80 ] }, { "parameters": { "modelId": { "__rl": true, "value": "models/gemini-1.5-flash", "mode": "list", "cachedResultName": "models/gemini-1.5-flash" }, "messages": { "values": [ { "content": "=Act as a Japanese Tax Accountant.\nAnalyze the attached receipt image and extract details.\n\n[Tasks]\n1. Extract Vendor, Date, Amount.\n2. Categorize the expense into Japanese Tax Account Titles (\u52d8\u5b9a\u79d1\u76ee).\n - e.g., \u6d88\u8017\u54c1\u8cbb, \u65c5\u8cbb\u4ea4\u901a\u8cbb, \u4f1a\u8b70\u8cbb, \u65b0\u805e\u56f3\u66f8\u8cbb, \u901a\u4fe1\u8cbb.\n\n[Output JSON ONLY]\n{\n \"vendor\": \"...\",\n \"date\": \"YYYY-MM-DD\",\n \"amount\": 1000,\n \"currency\": \"JPY\",\n \"category\": \"Account Title (e.g. \u6d88\u8017\u54c1\u8cbb)\",\n \"summary\": \"Brief description\"\n}" } ] }, "options": {} }, "type": "@n8n/n8n-nodes-langchain.googleGemini", "typeVersion": 1, "position": [ 32, 256 ], "id": "ae707371-9313-4b88-bd11-55b00caf5b42", "name": "Gemini (Vision)", "credentials": { "googlePalmApi": { "name": "" } } }, { "parameters": { "jsCode": "// Merge Mock and Real Data\nconst mode = $('Config').first().json.TEST_MODE;\nlet data = {};\n\nif (mode === 'true') {\n data = $('Mock Receipt Data').first().json;\n} else {\n // Parse Gemini JSON\n const text = $('Gemini (Vision)').first().json.content.parts[0].text;\n try {\n const cleanText = text.replace(/```json/g, '').replace(/```/g, '').trim();\n data = JSON.parse(cleanText);\n } catch (e) {\n data = { vendor: \"Error\", amount: 0, category: \"Unknown\" };\n }\n}\n\nreturn { json: data };" }, "id": "5b63055d-3633-4f27-bd0b-05036343aec0", "name": "Normalize Data", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 688, 112 ] }, { "parameters": { "operation": "appendOrUpdate", "documentId": { "__rl": true, "mode": "id", "value": "={{ $('Config').first().json.SHEET_ID }}" }, "sheetName": { "__rl": true, "mode": "name", "value": "Expenses" }, "columns": { "mappingMode": "defineBelow", "value": { "Date": "={{ $json.date }}", "Vendor": "={{ $json.vendor }}", "Amount": "={{ $json.amount }}", "Category": "={{ $json.category }}", "Memo": "={{ $json.summary }}", "Logged At": "={{ $now.format('yyyy-MM-dd HH:mm') }}" } }, "options": {} }, "id": "4a916642-1256-412a-b455-63a64a445cfa", "name": "Save to Sheets", "type": "n8n-nodes-base.googleSheets", "typeVersion": 4.7, "position": [ 1152, 112 ], "credentials": { "googleSheetsOAuth2Api": { "name": "" } } } ], "connections": { "Config": { "main": [ [ { "node": "Test Mode?", "type": "main", "index": 0 }, { "node": "Gemini (Vision)", "type": "main", "index": 0 } ] ] }, "Form Trigger": { "main": [ [ { "node": "Config", "type": "main", "index": 0 } ] ] }, "Manual Trigger": { "main": [ [ { "node": "Config", "type": "main", "index": 0 } ] ] }, "Test Mode?": { "main": [ [ { "node": "Mock Receipt Data", "type": "main", "index": 0 } ] ] }, "Mock Receipt Data": { "main": [ [ { "node": "Normalize Data", "type": "main", "index": 0 } ] ] }, "Gemini (Vision)": { "main": [ [ { "node": "Normalize Data", "type": "main", "index": 0 } ] ] }, "Normalize Data": { "main": [ [ { "node": "Save to Sheets", "type": "main", "index": 0 } ] ] }, "Save to Sheets": { "main": [ [] ] } }, "active": false, "settings": { "executionOrder": "v1", "availableInMCP": false }, "versionId": "d6024029-5044-432b-acd5-71b07eda9ae5", "meta": { "templateCredsSetupCompleted": true }, "id": "iubi4c2RciB37pvJ", "tags": [] }