Free Invoice Webhook Stub is a small, practical n8n JSON workflow for a simple invoice intake path. Download the workflow at no cost, import it into n8n, connect your own webhook endpoint, and map incoming invoice fields to one row in a Google Sheet. It is designed for makers, freelancers, small teams, and developers who need a clear starting point instead of a large billing platform.
The workflow expects a POST request with invoice information in JSON. Common fields can include an invoice number, customer name, customer email, issue date, due date, currency, subtotal, tax, total, payment status, notes, and a source reference. You can change the field mapping to match your own payload. The result is one organized row in a Google Sheet that you control. The file is intentionally minimal so that you can inspect every node, edit the columns, add validation, and connect additional steps only when you need them.
This is a free download. It never pays anyone and it does not contain paid advertising. There is no required subscription, no required badge, and no required backlink. You provide your own n8n instance, Google account, Sheet, credentials, and hosting. The stub does not process payments, send money, or provide accounting, tax, legal, or compliance advice. Review the workflow before using it with real customer information, and follow the privacy and retention rules that apply to your business.
Getting started is straightforward. Download the JSON, import it into n8n, create or select a Google Sheet, authorize the Google Sheets node, set the webhook path, and send a test JSON request. Verify that the values land in the intended columns before connecting a production form or application. You can then add duplicate detection, error handling, notifications, approval steps, or an archive sheet according to your own process.
The project is useful as a learning example and as a lightweight automation foundation. It is not a complete invoicing system and it does not replace an accounting package. If you want a broader workflow, you can upgrade to Invoice Inbox or request a $99 setup through the shop. Secondary downloads are available at https://gumroad.com/l/nkptvz and https://gumroad.com/l/wfauw. The primary page remains the free invoice webhook stub and explains what is included.
Free Invoice Webhook Stub keeps the first step small: receive structured invoice data, write one Google Sheets row, and give you a workflow you can understand and extend. You stay in control of the sheet, credentials, and deployment. Test with sample data first, document your field names, and add access controls before sharing the webhook with a team. The goal is a dependable free starting point for a useful invoice automation.
