Friendly Payment Reminder Email After the Due Date

An invoice that is a day or a few days late is usually not a problem client. It is a busy inbox, an approval stuck with someone, or a payment run that has not happened yet. The first reminder should be short, warm, and easy to act on. Here are two you can copy.

The goal of the first reminder

The first reminder has one job: get the invoice back in front of the person who can pay it, with everything they need to act. It is not the moment to mention late fees or to restate your terms in detail. Assume good intent and ask one simple question.

Subject lines that are easy to act on

• Friendly reminder: invoice [Invoice #] ([Amount])
• Invoice [Invoice #] for [Project Name], due [Due Date]
• Payment details for invoice [Invoice #]

Include the invoice number in the subject. It makes the email searchable for the client and for you, and it is what accounts payable teams usually look for.

Free template 1: one to three days late

Replace every [bracket] before sending.

Hi [Client Name],

Just a friendly reminder that invoice [Invoice #] for [Amount] was due on [Due Date]. I've attached it again in case it got buried.

You can pay at [Payment Link]. If it's already on its way, thank you, and feel free to ignore this note.

Best,
[Your Name]

The "already on its way" line gives the client a graceful out and keeps the tone light. It also avoids a back-and-forth if payment is already scheduled.

Free template 2: about a week late, still friendly

Hi [Client Name],

I wanted to check in on invoice [Invoice #] for [Amount] for [Project Name], which was due on [Due Date].

Could you let me know when payment is scheduled? If it's waiting on something from my side, such as a PO number, a vendor form, or a corrected invoice, tell me and I'll take care of it today.

Thanks so much,
[Your Name]

The second reminder adds one concrete question (when is it scheduled?) and offers to remove a blocker. Each reminder should ask for something slightly more specific than the last.

Keep it friendly by avoiding these

• Passive-aggressive phrasing such as "per my last email" or "as I'm sure you're aware."
• Copying the client's boss on an early reminder. Escalate only after polite asks go unanswered.
• Sending reminders daily. Give a few business days between messages.
• Mentioning fees you did not agree on. If your contract includes a late fee, it belongs in a later reminder, stated plainly.

Send a reminder before the due date, too

For clients who often pay late, a short heads-up two or three days before the due date can prevent the problem: "Just a heads-up that invoice [Invoice #] is due on [Due Date]. Here's the payment link again." It reads as helpful, not pushy, and it lands before the payment run.

When friendly is not working

If two friendly reminders get no reply, shift to a more structured approach: restate the work delivered, name a specific date you need payment by, and keep records of each message. The past-due invoice guide lays out a timing plan, and the final notice guide covers the last step.

Related guides

• Invoice follow-up email templates: the full soft-nudge-to-final-notice sequence
• How to ask a client for payment politely: wording for the first ask, before anything is late
• Past-due invoice payment reminder: a timing plan for 1, 7, 14, and 30+ days late
• Final notice before collections email: a calm, documented last notice for long-overdue invoices
• Proposal follow-up emails: for proposals that go quiet before any work starts
• Follow-up email after sending a quote or estimate: for smaller quotes and estimates awaiting a yes
• Client not responding to invoice: what to email when you get radio silence

More free guides

• Invoice 30 days overdue email
• Second payment reminder email
• Payment reminder subject lines
• Free 3-template mini-pack (PDF)
• All free guides

Practical communication guidance only, not legal advice. Payment terms, late fees, and collection options depend on your contract and jurisdiction.