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January 1, 20263 min read

How Often to Send Invoice Reminders (Simple Cadence)

Not sure how often to send invoice reminders? Use this simple cadence for Net-15 and Net-30 terms—without annoying good clients.

#invoices#invoice-reminder#accounts-receivable#collections#small-business
By InvoicifyAI TeamAI Voice + Revenue AutomationLast updated January 23, 2026

Wondering how often to send invoice reminders? The right cadence is consistent enough to prevent "forgotten invoices," but not so aggressive that it damages relationships.

For freelancers and small service businesses, the goal is to stay professional while protecting cash flow. Here's a simple default schedule you can apply today.

Table of Contents

The simplest rule

Send reminders at predictable milestones:

  • Before due date (prevention)
  • On due date (confirmation)
  • A few days overdue (clarity)
  • A week overdue (firm + unblock)
  • Two weeks overdue (final escalation)

Net‑15 default cadence

  • T‑3 days: Friendly reminder
  • T (due date): Due today
  • T+3 days: Past due + request payment date
  • T+7 days: Firm + ask for blocker
  • T+14 days: Final notice / escalation per agreement

Net‑30 default cadence

  • T‑5 days: Friendly reminder
  • T (due date): Due today
  • T+3 days: Past due + request payment date
  • T+10 days: Firm + ask for blocker
  • T+21 days: Final notice / escalation per agreement

If you need copy/paste emails, see: Invoice Reminder Email Templates.

Prefer editable versions you can personalize quickly? Use the free Overdue Invoice Reminder Templates.

When to switch from email to phone

Phone is best when you need a fast answer:

  • The invoice is 7–10+ days overdue
  • The amount is material to your cash flow
  • You suspect an approval / vendor setup blocker

Use a short script and focus on outcomes (payment date or blocker): Overdue Invoice Call Script + Voicemail Script.

How to segment reminders (so you don’t annoy good clients)

Not all customers deserve the same cadence:

  • Great payers: fewer touches; start at due date + T+7 if needed
  • New customers: standard cadence until they prove reliability
  • High‑risk customers: slightly earlier reminders + require a clear payment date
  • One-off project clients: tie reminders to a clear next step (deliverable handoff, final files, next appointment)

Keep your tone consistent: calm, professional, and specific about next steps.

Free tools to speed up follow‑ups

Want this automated?

If you want follow‑ups handled consistently (and logged automatically), the Invoice Reminder Agent can do the chasing for you—using a professionally tuned script.

FAQs

Is it okay to remind someone before the due date?

Yes. A short “just making sure you have everything you need” message prevents avoidable delays.

What if they keep promising dates and missing them?

Stop asking “when” and start asking “what’s blocking payment.” If they still can’t commit, escalate per your agreement.

Should I threaten collections?

Only when you’re ready to follow through. Use “per our agreement” language and keep it factual.

Free tools for faster collections

Start with no-signup tools for reminders, invoices, and quick follow-ups.

Author

InvoicifyAI Team

AI Voice + Revenue Automation

We build AI agents that actually act—qualifying leads, following up on proposals, chasing overdue invoices, and capturing customer feedback so lean teams can stay focused on high-leverage work.

Last updated January 23, 2026

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