Automated Invoice Processing & Filing with IMAP, AI, Google Drive & DateV — n8n Workflow

High complexity▶️ Manual16 nodes🏷️ Invoice Processingby Jan Zaiser

Overview

This n8n template demonstrates how to automatically process incoming invoice emails using AI to extract structured data, organize files in Google Drive, log everything in Google Sheets, and forward to your accounting system, completely hands-free. Use cases are many: Perfect for freelancers managing client invoices, small businesses handling supplier bills, accounting departments processing high invoice volumes, or anyone who wants to eliminate manual data entry and maintain a perfectly organize

Nodes used

Send EmailGoogle SheetsGoogle DriveCodeOpenAI

Workflow Preview

Extract & Log Invoice Data
Steps:
1. Extract From PDF – Reads the uploaded invoice PDF a
2. Extract & Format Data (AI) – Uses an AI model to id
Send to DateV
Step:
Sends the processed invoice as an email to your DateV i
Move Email to Archive/Folder
Step:
Moves the processed email to a specific folder after a
Upload to Temporary Storage
Steps:
1. Download File – Retrieves the processed invoice PDF
2. Upload to Incoming Folder – Temporarily uploads the
Receive IMAP-Mail & Extract Attachments from
Steps:
1. Email Trigger (IMAP) – Detects new incoming emails
2. Split Attachments (JavaScript) – Pr
Workflow Overview — Automated Invoice Process
Goal:
This workflow automatically processes incoming invoice
Upload to final destination
Steps:
Downloads the prepared file from the temporary storage
E
Extract From PDF
Extract & Format Data
Get Additional Date Data
Search Month Folder
L
Loop Over Items
Google Sheets
E
Email Trigger (IMAP)
Send to DateV
M
MoveEmail email
Upload file
Code in JavaScript
Download file
Download file1
Download file2
Download file3
Upload file1
16 nodes16 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a manual trigger.

  2. 2

    Process

    Data flows through 16 nodes, connecting code, emailreadimap, emailsend.

  3. 3

    Output

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

Node Details (16)

SE

Send Email

emailSend

#1
GO

Google Sheets

googleSheets

#2
GO

Google Drive

googleDrive

#3
CO

Code

code

#4
OP

OpenAI

n8n-nodes-langchain.openAi

#5

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 → New → Import from file.
  3. 3Select the downloaded automated-invoice-processing-filing-with-imap-ai-google-drive-datev 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 → Import from JSON:

{ "name": "Automated Invoice Processing & Filing with IMAP, AI, Google Drive & DateV", "nodes": [...], ...}

Integrations

codeemailreadimapemailsendextractfromfilegoogledrivegooglesheetsn8n-nodes-imap.imapopenaisplitinbatches

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes16
Complexityhigh
Triggermanual
CategoryInvoice Processing

Created by

Jan Zaiser

Jan Zaiser

@janzaiser

Tags

codeemailreadimapemailsendextractfromfilegoogledrivegooglesheetsn8n-nodes-imap.imapopenaisplitinbatches
⚡

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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 touchpoint—the bill—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.

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