Overdue Invoice Daily Text Nag

What it does

Sends daily text reminders to your phone about invoices 60+ days overdue until they’re marked paid, ensuring aging receivables stay top of mind without manual tracking.

Why I recommend it

Overdue invoices get forgotten in the daily chaos. Daily SMS reminders create accountability and urgency, dramatically improving collection rates through consistent follow-up.

Expected benefits

  • 30-40% improvement in collection speed
  • Reduced DSO (days sales outstanding)
  • Zero forgotten overdue invoices
  • Clear daily AR visibility

How it works

Daily scheduled check -> query accounting system for invoices 60+ days overdue -> format list with customer names and amounts -> send SMS summary to owner/finance lead -> continue daily until invoice marked paid.

Quick start

Export overdue invoices weekly and manually review. Set phone reminders for follow-up. After a month, automate the daily check and SMS alert to eliminate manual tracking.

Level-up version

Escalate by age (60 days = daily text, 90 days = text + email, 120 days = text + call reminder). Include suggested collection actions. Stop reminders on weekends. Track collection success rates by reminder frequency.

Tools you can use

Accounting: Xero, QuickBooks, FreshBooks

SMS: Twilio, GoHighLevel SMS

Automation: Zapier, Make, n8n

Tracking: Google Sheets for collection logs

Also works with

Invoicing: Invoice Ninja, Zoho Invoice, Wave

Payment: Stripe for payment links in reminders

Collections: Fundbox, BlueVine for AR financing

Technical implementation solution

  • No-code: Zapier daily schedule -> Xero/QuickBooks API fetch unpaid invoices >60 days -> format summary message -> Twilio SMS send to owner phone.
  • API-based: Cron daily 9am -> accounting API query overdue invoices -> calculate days overdue -> generate prioritized list -> Twilio API send formatted SMS -> log reminder sent for tracking.

Where it gets tricky

Handling disputed invoices (don’t nag if legitimately contested), weekend/holiday scheduling, managing reminder fatigue, and ensuring you actually follow through on collections vs just getting reminded.