Disclosure: this article was written with AI assistance and reviewed before publishing.
Chasing an unpaid invoice is the most awkward part of freelancing. The trick is to escalate slowly and factually, so the client always has an easy way to pay and you never sound angry. Here is the timeline I recommend, with copy-paste emails.
The timeline
| When | Goal | Tone |
|---|---|---|
| 3 days before due | Reminder | Friendly |
| Due day | Nudge | Neutral |
| +3–5 days | Confirm it's in the queue | Polite |
| +10 days | Find the blocker | Helpful |
| +20 days | Pause work | Firm |
| +30 days | Late fee (if in contract) | Formal |
| +45 days | Final notice | Formal |
Email 1 — 3 days before the due date
Subject: Invoice #[NUM] due on [DATE]
Hi [Name], quick heads-up that invoice #[NUM] for project is due on [date]. Invoice and payment link attached: [link]. Thanks again — it was great working on this.
Why it works: most late payments are just forgotten. A pre-due reminder fixes a surprising share of them.
Email 3 — a few days overdue
Subject: Following up: invoice #[NUM]
Hi [Name], I haven't seen payment for invoice #NUM yet. Could you confirm it's in your payment queue? Happy to resend anything your accounts team needs (W-9, PO number, bank details).
Asking "what does your accounts team need?" removes the most common hidden blocker: a missing PO or vendor form.
Email 4 — 10 days overdue: find the blocker
Subject: Anything blocking invoice #[NUM]?
Hi [Name], invoice #[NUM] is now 10 days past due. Is there something on your side holding it up — an approval, a missing PO, a question about the work? If so, tell me and I'll sort it today. Otherwise, could you share an expected payment date?
Getting a date in writing is the goal of this email.
5 habits that prevent late payments
- Take a 30–50% deposit from new clients.
- Write payment terms (and any late fee) into the agreement.
- Invoice the day you deliver, with a one-click payment link.
- At kickoff, ask who processes invoices and what they need.
- When you send an invoice, put reminders for each follow-up step in your calendar.
(Not legal advice — check what applies in your jurisdiction before mentioning late fees or collections.)
Want the full sequence?
The remaining emails (due-day nudge, pause-work, late-fee notice, final notice), plus a 60-second phone script and a payment-plan offer email, are in the Late Payment Follow-up Kit — $5. AI-assisted templates, edited for tone.
Also useful: my 25 freelancer email templates pack ($9) for proposals, scope creep, rate increases and more.
What's the latest an invoice has been paid for you? Share your best follow-up line in the comments.
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