THE FREELANCER'S FOLLOW-UP GUIDE

What to write when an invoice is late

A short, calm reminder is usually a good next step. Keep it factual, friendly, and easy to answer. Here are three starting points you can adapt to your client and your agreed payment terms.

First, check the due date and make sure your payment instructions and invoice details are correct. If a payment may already be on its way, a light check-in is enough. Don't add a fee or threaten action unless it is part of your agreement and you have checked that it applies.

Quick checklist

Use the same invoice number and amount as your original invoice.
Say when it was due, without blame or assumptions.
Ask for a payment date or whether they need another copy.
Keep a copy of your note and any reply in your own records.

1. A friendly check-in

Try this for an invoice due today, or when you want to assume good intent.

Subject: A quick note about invoice [invoice number]

Hi [client name],

I hope you're well. Just a quick note that invoice [invoice number] for [amount] was due [due date]. When you get a moment, could you let me know when I can expect payment? Happy to resend the invoice if that's helpful.

Thanks,
[your name]

2. A clear overdue follow-up

Use a little more direct language after the due date has passed. Keep the request specific and easy to answer.

Subject: Following up: invoice [invoice number]

Hi [client name],

I'm checking in on invoice [invoice number] for [amount], due [due date]. Could you please confirm the expected payment date? Let me know if you'd like another copy of the invoice.

Best,
[your name]

3. Firm but fair

If earlier messages haven't resolved it, clearly state the outstanding details and ask for a response. Adapt this to your contract and local rules; this is not legal or collections advice.

Subject: Action requested: invoice [invoice number]

Hi [client name],

I'm following up on invoice [invoice number] for [amount], which was due [due date]. Please let me know when payment is scheduled, or reply if there is an issue I can help resolve. I can resend the invoice and payment instructions if needed.

Thank you,
[your name]

Make it fit your relationship

A first reminder can stay warm; later reminders can be more direct without becoming hostile. Use your real due date and the terms you agreed with the client. If you need to discuss a payment plan or take formal action, consider qualified advice for your situation.

If you follow up across several invoicing tools, keep a separate list of the client, invoice number, amount, and due date—without copying sensitive details you don't need.

Want the awkward part written for you?

Use DueCue's free editable reminder generator. Choose your tone, copy your draft, and send it yourself.

Write an invoice reminder ↗