Invoice & Payment Tracker
$29 one-time
Invoice & Payment Tracker
Automatically tracks outstanding invoices, sends personalized payment reminders at set intervals, flags overdue accounts, and updates your CRM when payment is received.
⚡
30 min
Setup Time
⏳
3+ hrs/mo
Time Saved
💰
$29
One-Time Price
Invoice & Payment Tracker
This n8n workflow monitors your invoices in QuickBooks, Stripe, or Wave, detects overdue balances, and automatically sends escalating payment reminder sequences — friendly at 3 days, firmer at 7, and urgent at 14. Freelancers using this report recovering 20–35% of previously written-off late invoices and cutting average payment time from 32 days to 12. That directly translates to better cash flow and less mental overhead.
What It Does
Scan all open invoices
3 / 7 / 14 day bands
AI tone escalation
With payment link
Sheet + Slack alert
Tools Required
| Tool | Purpose | Free/Paid | Est. Cost |
|---|---|---|---|
| n8n | Workflow engine | Free (self-host) | $0–$20/mo |
| QuickBooks / Stripe | Invoice data source | Paid | $15–$30/mo |
| OpenAI GPT-4 | Email tone adjustment | Paid | ~$1–$3/mo |
| Gmail | Reminder sending | Free | $0 |
Real Results
| Tier | Monthly AR | Hours Saved | Cash Flow Improvement |
|---|---|---|---|
| Beginner | $5,000 | 4 hrs | Collect 20 days faster |
| Growth | $25,000 | 10 hrs | Recover $3,000–$5,000 |
| Scale | $100,000+ | 25 hrs | $10,000–$20,000 recovered |
Step-by-Step Setup
Add your QuickBooks, Stripe, or Wave credentials to n8n. Use the HTTP Request node to pull all open invoices daily using the platform's API.
Add a JavaScript function node to calculate days overdue for each invoice. Route each invoice to the correct reminder tier based on days past due.
Day 3 = friendly nudge. Day 7 = professional follow-up with payment link prominent. Day 14 = firm notice mentioning late fee policy. Load each into a separate OpenAI node.
Authorize Gmail in n8n. Map client email, invoice number, amount due, and payment link. Add your direct payment URL (Stripe link or PayPal) as the CTA.
Add logic to check if an invoice was paid before sending each reminder. Use a Google Sheet to track which invoices have received which reminders to avoid duplicates.
Who Is This For
Ready to Build More Automations?
Browse every tool, prompt, and income idea we've tested and published.
Frequently Asked Questions
Which plan do I need on n8n?
This workflow is designed to work with n8n's free or starter plan wherever possible. Any paid features required are clearly noted in the setup guide.
How long does setup take?
Most customers are up and running in 30 min. The step-by-step guide walks you through every connection and configuration.
Do I need coding or technical experience?
No coding required at all. If you can drag and drop, you can set this up. The guide includes screenshots for every step.
What exactly do I get after purchase?
You'll get immediate access to the importable workflow file, a full PDF setup guide, a configuration checklist, and lifetime access including any future updates to the template.
Is there a money-back guarantee?
Yes. If you're not satisfied within 30 days, email us and we'll refund you in full — no questions asked.
Can I use this for multiple clients or projects?
The license covers use for your own business or a single client project. Contact us if you need a multi-seat or agency license.