Invoice reminder templates that actually get you paid
The most common invoice reminder mistake isn't sending too many messages — it's sending the same tone throughout. A friendly pre-due nudge, a firm day +14 final notice, and everything in between should feel meaningfully different. Below are five templates calibrated to each stage.
Copy them directly, replace the bracketed placeholders, and — once you have the right wording — automate the sequence so it runs without manual work for every future invoice.
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Two rules for effective reminder copy
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Download Template KitThe 5 templates
Before due date
Friendly — make payment easy, remove friction
Subject line
Quick reminder: Invoice #[INV] due [date]
Body
Hi [Client name], Just a heads-up that invoice #[INV] for [amount] is due on [date]. You can pay directly here: [payment link] Let us know if you have any questions. Best, [Your name]
Due date
Neutral — acknowledge, keep it brief
Subject line
Invoice #[INV] is due today
Body
Hi [Client name], Invoice #[INV] for [amount] is due today. Pay here: [payment link] Thanks, [Your name]
First reminder
Warm but clear — most day +3 invoices are oversights
Subject line
Invoice #[INV] — just checking in
Body
Hi [Client name], Invoice #[INV] for [amount] was due on [date] and we haven't received payment yet. If you've already sent it, please ignore this. Otherwise, you can pay here: [payment link] Happy to help if anything is unclear. Best, [Your name]
Second reminder
Structured — reference overdue status, ask for timeline
Subject line
Invoice #[INV] overdue — payment update needed
Body
Hi [Client name], I'm following up on invoice #[INV] for [amount], which is now [X] days overdue. Could you confirm when payment will be processed? If there's an issue we can help with, please let us know. Pay here: [payment link] Thanks, [Your name]
Final notice
Firm — from agency owner by name, states next steps
Subject line
Final notice: Invoice #[INV] — action required
Body
Hi [Client name], This is a final notice regarding invoice #[INV] for [amount], now [X] days overdue. Please process payment today: [payment link] If payment is not received by [date + 3 days], we will need to [pause work / apply late fees / escalate] as outlined in our agreement. If there is something we should discuss, please reply or call me at [phone]. [Agency owner name] [Agency name]
What makes these templates work
Each template follows the same structural logic: the earlier the stage, the warmer and shorter the message. As urgency increases, three things change simultaneously — the subject line becomes more direct, the body references the overdue status explicitly, and the sender shifts from accounts to the agency owner personally.
Always include a payment link
Every single message — including the pre-due reminder — needs a direct payment link. Make paying the path of least resistance at every touchpoint.
Escalate the sender, not just the tone
The day +14 final notice should come from the agency owner by name. The personal sender creates accountability on both sides of the relationship.
State consequences clearly at day +14
The final notice only works if there's a stated consequence. Reference late fees or work suspension from your contract explicitly at day +14.
Why templates alone aren't enough
Having the right templates is the first step. The second is ensuring every invoice gets the right message at the right time, consistently, without relying on you to remember. Using invoice reminder software means your templates run automatically as part of a structured escalation sequence. Write them once — the system handles the scheduling, the payment links, and the automatic cancellation when payment arrives.
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Use the reminder templates in a real collection system
Pair the copy with timing, escalation, and payment-link rules so every reminder has a clear job.
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Automate these templates in one setup
Flovanta runs your escalation sequence automatically with Stripe payment links embedded in every message. Write your templates once — the system handles the rest.
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