Dunning email templates that get you paid

A dunning email is a payment reminder for an overdue invoice. The goal isn't to win an argument — it's to get paid while keeping the relationship intact. The best dunning emails are short, factual, escalate over time, and always make it obvious how to pay.

The rules that make dunning work

1. Always include the facts: invoice number, amount, and due date.
2. Give one clear call to action: a payment link, or a simple "reply to arrange payment."
3. Escalate tone over time — but never threaten, and never invent fees or interest you didn't agree to. Threatening language and fabricated terms can violate fair-collection rules and destroy trust.
4. Make it personal and on-brand. A reminder from a real person beats a robotic notice.

Stage 1 — Friendly reminder (1–14 days overdue)

Subject: Reminder: invoice INV-1042 ($1,200.00) now due

Hi Jordan,

We hope you're doing well. This is a friendly reminder that invoice INV-1042 for $1,200.00 was due on May 1 and is now a few days past due. If you've already sent payment, thank you — please disregard this note. Otherwise, you can pay here: [payment link].

Thanks, Dana — Northwind Trading

Stage 2 — Firm follow-up (15–45 days overdue)

Subject: Overdue: invoice INV-1042 ($1,200.00)

Hello Jordan,

Our records show invoice INV-1042 for $1,200.00, due May 1, remains unpaid and is now 20 days overdue. We'd like to get this resolved promptly. Please arrange payment here: [payment link] — or reply to let us know if there's an issue we can help with.

Thank you, Dana — Northwind Trading

Stage 3 — Final notice (46+ days overdue)

Subject: Final reminder: invoice INV-1042 ($1,200.00) past due

Dear Jordan,

This is a final reminder that invoice INV-1042 for $1,200.00, due May 1, is now significantly overdue. We'd like to settle this account and would appreciate your payment, or a quick call to discuss arrangements, as soon as possible. You can pay here: [payment link].

Thank you, Dana — Northwind Trading

What not to do

• Don't threaten lawsuits, collection agencies, or credit damage in routine reminders.
• Don't add late fees or interest you never agreed to in the contract.
• Don't send a wall of text. Three short paragraphs is plenty.

Make it effortless

Writing these by hand for every invoice is where good intentions die. Collectly drafts the correct stage automatically for each overdue invoice — friendly, firm, or final — fills in the invoice facts, respects your brand voice, and runs every draft through guardrails so it's never threatening and never invents terms. You review and send.