An overdue invoice email has one job: make the next step easy to understand. The recipient should be able to identify the invoice, check the amount, and either arrange payment or explain the obstacle.

The templates below are original examples for legitimate business invoices. Adapt them to the relationship and agreed terms. They are not legal demands, a fixed collection schedule, or a promise that a particular message will produce payment.

Check the record before writing

Start with the current accounting balance. A reminder based on yesterday's export can be wrong if a payment or credit was recorded this morning. Then check the due date, currency, billing contact, and most recent conversation. If the customer already raised a question, address that question instead of restarting the reminder sequence.

Keep the message calm and specific. Australia's business.gov.au recommends beginning overdue-payment follow-up with a polite phone call or email. That is useful communication guidance; local rules about debt recovery and fees require their own review. See its payment terms guidance.

Before sending, confirm:

• The customer still owes the amount you are quoting.
• The invoice number and payment instructions are correct.
• The recipient is authorized to receive the invoice details.
• There is no active dispute or payment commitment that changes the next step.
• Another teammate or accounting system is not sending a duplicate reminder.

1. A first reminder after the due date

Use this when the invoice is overdue and there is no existing conversation that needs a different response. You are checking for an administrative gap, not guessing why payment is late.

Subject: Invoice [number] - payment reminder

Hi [name],

A quick reminder that invoice [number] for [amount and currency] was due on [date]. Our records show [outstanding balance] remains open.

You can find the invoice and the agreed payment instructions at [verified link]. Could you confirm that it has reached the right person for payment?

If you have already arranged payment, please let us know the date and reference so we can check the record.

Thanks, [sender]

The useful question is whether the invoice reached the right person. Do not ask the customer to send full bank statements or card information by email.

2. A follow-up when there is no reply

Read the previous message before using this template. Keep the history in the same conversation where practical. Choose timing with your client; there is no universal number of days that suits every business relationship.

Subject: Following up on invoice [number]

Hi [name],

I am following up on the note below about invoice [number]. The outstanding balance is [amount and currency].

Could you let us know the expected payment date, or whether anything is preventing the invoice from being processed?

If someone else handles this, please point us to the right contact.

Thank you, [sender]

This asks for information you can act on. If the reply mentions a missing purchase order, a disputed line item, or an incorrect legal entity, the next task is to resolve that issue with the client.

3. Confirming a promised payment

When the customer gives a date, record the amount and date together. If they only promise part of the balance, make that distinction explicit.

Subject: Confirming the payment date for invoice [number]

Hi [name],

Thank you for the update. My understanding is that [amount and currency] toward invoice [number] is scheduled for [date].

We will check the accounting record after that date. Please let us know if the amount or timing changes.

Thanks, [sender]

Avoid writing that the invoice is paid. A promise, a scheduled transfer, and a recorded payment are different events. In Clawrk's promise workflow, your team can keep the commitment separate from the invoice's balance.

4. When the promised date has passed

First check the ledger and allow for the payment method and the client's reconciliation process. If the payment is still unconfirmed, ask for an update without implying that you know what happened.

Subject: Checking the payment update for invoice [number]

Hi [name],

We had noted [date] for the [amount and currency] payment toward invoice [number]. We have not yet confirmed it in the accounting record.

If it has been sent, could you share the payment date and reference? Otherwise, please let us know the revised timing or anything we can help clarify.

Thank you, [sender]

Coordinate the tools, then review the outcome

QuickBooks Online supports manual and automatic invoice reminders. Before adding a second follow-up workflow, review the existing reminder settings and agree which tool owns outreach. Intuit documents the controls in its invoice reminder guide.

After sending, keep the result with the invoice: delivered, bounced, replied, promised, or unresolved. A delivery event tells you about the email, not the money. A reply may change what should happen next.

For a practice handling several clients, start with one agreed routine and make the handoff visible to the team. Our weekly receivables workflow shows how to turn those individual conversations into a manageable review process.