Automate Bank Statement and Invoice Reconciliation with GPT and Google Sheets β€” n8n Workflow

High complexity⚑ Trigger16 nodes🏷️ Invoice ProcessingπŸ‘ 392 viewsby Chintan Prajapati

Overview

🟒 Manual Trigger

Workflow starts manually to initiate the reconciliation process on demand.

πŸ“„ Fetch Invoices & Bank Statements

Retrieves invoice data and bank statement data from Google Sheets for comparison.

πŸ”€ Merge Data

Combines both datasets into a single structured dataset for processing.

🧩 Format Payload for AI

Function node prepares and structures the merged data into a clean JSON payload for AI analysis.

πŸ€– AI Reconciliation

AI Agent analyzes the invoice and bank statement data to

Nodes used

Google SheetsCodeAI AgentOpenAI Chat Model

Workflow Preview

model
⚑
W
When clicking β€˜Execute w…
Invoice Data
Bank Statements
OpenAI Chat Model
Process the Invoice Vs B…
M
Merge
Combine and Label Merged…
S
Switch
Matched
Possible Matches
I
If
Unmatched_Invoice
Unmatched-Bank Transaction
Summary
Clean and Format Data
Add Stream Label Filter
16 nodes16 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a trigger trigger.

  2. 2

    Process

    Data flows through 16 nodes, connecting agent, code, googlesheets.

  3. 3

    Output

    The workflow completes its automation and delivers the result to the configured destination.

Node Details (16)

GO

Google Sheets

googleSheets

#1
CO

Code

code

#2
AI

AI Agent

n8n-nodes-langchain.agent

#3
OP

OpenAI Chat Model

n8n-nodes-langchain.lmChatOpenAi

#4

How to Import This Workflow

  1. 1Click Download JSON button on the right to save the workflow file.
  2. 2Open your n8n instance. Go to Workflows β†’ New β†’ Import from file.
  3. 3Select the downloaded automate-bank-statement-and-invoice-reconciliation-with-gpt-and-google-sheets file and click Import.
  4. 4Set up credentials for each service node (API keys, OAuth, etc.).
  5. 5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n β†’ Import from JSON:

{ "name": "Automate Bank Statement and Invoice Reconciliation with GPT and Google Sheets", "nodes": [...], ...}

Integrations

agentcodegooglesheetsiflmchatopenaimanualtriggermergeswitch

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes16
Complexityhigh
Triggertrigger
Views392

Created by

Chintan Prajapati

Chintan Prajapati

@satva-technolabs

Tags

agentcodegooglesheetsiflmchatopenaimanualtriggermergeswitch
⚑

New to n8n?

n8n is a free, open-source workflow automation tool. Self-host it or use the cloud version.

Get n8n Free β†’

Related Invoice Processing Workflows

COCOEMEX+5
medium

Automate Custom QuickBooks Invoice PDFs & Email with n8n

Standard accounting templates often fail to reflect a premium brand identity. This sophisticated n8n workflow bridges the gap between financial record-keeping and professional client presentation. By moving beyond the native limitations of QuickBooks Online, this automation enables businesses to generate high-end, multi-page PDF invoices that align perfectly with their corporate styling. The process begins the moment a new invoice is generated in QuickBooks, triggering a webhook that captures real-time billing data. The workflow then utilizes advanced HTML-to-File conversion and custom Code nodes to structure data into a polished, branded layout. It handles complex logic such as line-item merging and multi-page formatting automatically. Once the document is rendered, the system bypasses generic 'no-reply' senders by routing the finalized PDF through your preferred email provider. This ensures a seamless, white-labeled experience for your clients while eliminating the manual overhead of exporting, styling, and attaching files. Ideal for agencies and service providers, this flow guarantees that your most frequent touchpointβ€”the billβ€”is as professional as your work. **Common Use Cases:** - High-end creative agencies requiring bespoke, white-labeled billing documents for premium clients. - Automated recurring subscription billing where custom tax disclosures or localized branding are required. - Service-based businesses needing to attach dynamic project reports or terms of service directly to QuickBooks invoices.

πŸ”— WebhookΒ·12 nodes