AI-powered bank statement analysis & transaction categorization

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

How it works This workflow automatically processes bank statements from various formats and extracts structured transaction data with intelligent categorization using AI. Key Steps 1. File Upload A...

Best for

Document Extraction automation workflows
AI Summarization automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-base.code, n8n-nodes-base.if, n8n-nodes-base.extractfromfile, n8n-nodes-base.spreadsheetfile, n8n-nodes-base.openai, n8n-nodes-base.postgres, n8n-nodes-base.respondtowebhook

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by vinci-king-01.

Original n8n.io source

1.1 Workflow description

Title: AI-powered bank statement analysis & transaction categorization
Workflow name: AI-powered bank statement analysis & transaction categorization

How it works

This workflow automatically processes bank statements from various formats and extracts structured transaction data with intelligent categorization using AI.

Key Steps

File Upload - Accepts bank statements via webhook upload (PDF, Excel, CSV formats).
Smart Format Detection - Automatically routes files to appropriate processors (PDF text extraction or spreadsheet parsing).
AI-Powered Extraction - Uses GPT-4 to extract account details, transactions, and balances from statement data.
Data Processing & Categorization - Cleans, validates, and automatically categorizes transactions into expense categories.
Database Storage - Saves processed data to PostgreSQL database for analysis and reporting.
API Response - Returns structured summary with transaction counts, expense totals, and category breakdowns.

Set up steps

Setup time: 8-12 minutes

Configure OpenAI credentials - Add your OpenAI API key for AI-powered data extraction.
Set up PostgreSQL database - Connect your PostgreSQL database and create the required table structure.
Configure webhook endpoint - The workflow provides a /upload-statement endpoint for file uploads.
Customize transaction categories - Modify the AI prompt to include your preferred expense categories.
Test the workflow - Upload a sample bank statement to verify the extraction and categorization process.
Set up database table - Ensure your PostgreSQL database has a bank_statements table with appropriate columns.

Features

Multi-format support: PDF, Excel, CSV bank statements
AI-powered extraction: GPT-4 extracts account details and transactions
Automatic categorization: Expenses categorized as groceries, dining, gas, shopping, utilities, healthcare, entertainment, income, fees, or other
Data validation: Cleans and validates transaction data with error handling
Database storage: PostgreSQL integration for data persistence
API responses: Clean JSON responses with transaction summaries and category breakdowns
Smart routing: Automatic format detection and appropriate processing paths

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Upload Statement

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2

Block 2 - File Handler

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 3 - Check File Type

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2

Block 4 - Extract PDF Text

Type / Role: n8n-nodes-base.extractFromFile - extractFromFile
Config choices: Version 1

Block 5 - Parse Excel/CSV

Type / Role: n8n-nodes-base.spreadsheetFile - spreadsheetFile
Config choices: Version 2

Block 6 - AI Data Extractor

Type / Role: n8n-nodes-base.openAi - openAi
Config choices: Version 1

Block 7 - Process & Summarize

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 8 - Save to Database

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.4

Block 9 - Send Response

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1

3. Summary Table

Workflow	AI-powered bank statement analysis & transaction categorization
Complexity	intermediate
Nodes	9
Categories	Document Extraction, AI Summarization
Author	vinci-king-01
Published	29 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/6629/6629.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Document Extraction workflows AI Summarization workflows

Frequently asked questions

What does AI-powered bank statement analysis & transaction categorization do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Document Extraction, AI Summarization use case.

vinci-king-01

67 workflows

Nodes

n8n-nodes-base.webhook n8n-nodes-base.code n8n-nodes-base.if n8n-nodes-base.extractfromfile n8n-nodes-base.spreadsheetfile n8n-nodes-base.openai n8n-nodes-base.postgres n8n-nodes-base.respondtowebhook

Complexity

intermediate

Published 29 Jul 2025

Likes 0

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Install path: /data/workflows/6629/6629.json

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AI-powered bank statement analysis & transaction categorization

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Key Steps

Set up steps

Features

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Upload Statement

Block 2 - File Handler

Block 3 - Check File Type

Block 4 - Extract PDF Text

Block 5 - Parse Excel/CSV

Block 6 - AI Data Extractor

Block 7 - Process & Summarize

Block 8 - Save to Database

Block 9 - Send Response

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions