Invoice Payment Reminder Email Templates (Copy and Paste)
Most freelancers know they should follow up on unpaid invoices. Most don't do it consistently. Usually because they dread writing the email.
Here are three templates you can copy and use today. One for each stage: polite check-in, firm follow-up, final notice. After the templates, I'll show you how to skip writing these entirely.
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Template 1: Day 3 After Due Date (Polite Check-In)
Subject: Following up on Invoice #[number]
Hi [Client name],
Just following up on invoice #[number] from [date]. It was due on [due date] — wanted to make sure it didn't get lost.
You can pay via the link below: [payment link]
Let me know if you have any questions.
[Your name]
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Why it works: Short, no blame, assumes good intent. Most clients who see this will pay immediately. They forgot. This reminds them.
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Template 2: Day 7 After Due Date (Firm Follow-Up)
Subject: Invoice #[number] — 7 days past due
Hi [Client name],
Invoice #[number] for $[amount] is now 7 days past due. Please process this at your earliest convenience.
Payment link: [link]
If there's an issue, let me know and we can work through it.
[Your name]
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Why it works: States the facts clearly. Includes the amount so there's no ambiguity. Opens the door if there's a real problem, but doesn't assume one. The tone is direct but not hostile.
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Template 3: Day 14 After Due Date (Final Notice)
Subject: Invoice #[number] — Payment Required
Hi [Client name],
I'm following up again on invoice #[number] for $[amount], which is now 14 days overdue.
Please reply with a payment date, or let me know if there's an issue that's preventing payment. If I don't hear back by [specific date], I'll need to pause any active work until this is resolved.
Payment link: [link]
[Your name]
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Why it works: Introduces a concrete consequence (pausing work) without burning the relationship. Gives the client an out if there's a real cash flow issue. Sets a deadline so it doesn't drift to day 21, 30, or longer.
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A Note on Tone
All three templates are short. That's intentional. Long emails with apologies and explanations signal that you're uncomfortable asking. You shouldn't be. You did the work. You get paid for the work.
Write like the payment is expected, because it is.
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How to Skip Writing These Entirely
If manually tracking due dates and sending follow-ups sounds like something you'll do inconsistently (most people do), there's a better approach.
Nudge sends these reminders automatically. Day 3, day 7, day 14 after the due date — the emails go out on their own. You don't have to track anything, draft anything, or remember anything.
You send the invoice. Nudge handles the follow-up. If the client pays, the reminders stop. If they don't, the sequence runs until the invoice is closed.
It's not about automation for its own sake. It's about building a system where late invoices get followed up every single time, without depending on you to remember to do it when you're busy.
The templates above work. Use them. But if you're sending more than a few invoices a month, automate the sequence and spend that time on something else.