Every freelancer and small business owner eventually stares at the same screen: an invoice that was due two weeks ago, a client who has gone quiet, and a blank email draft. Writing that email from scratch, every time, while trying to sound firm without sounding desperate, is exactly why so many overdue invoices just sit there.
So here are the emails, already written. Four templates, one per stage: a friendly nudge at 7 days past due, a firmer one at 14, a serious one at 30, and the final notice at 60. Copy, paste, replace the [brackets], send.
The rule that makes all four work: each email is shorter and more specific than the last. Early on you assume it was an honest oversight and make paying effortless. Later, you stop asking and start stating consequences. What you never do is send the same “just following up” email five times — a reminder only asks, and anything you ask for can be ignored.
Before you send anything: the 3 checks
- Confirm the invoice actually arrived. Check it went to the right person and address. A surprising share of “late payments” are an invoice sitting in the wrong inbox.
- Re-attach the invoice and include a payment link in every email. Most late payments are friction, not refusal. Every extra step between your email and their payment costs you days.
- Check your late fee is actually enforceable. You can only charge a late fee you agreed with the client before the work started — in the contract, proposal, or on the original invoice. If it wasn’t agreed upfront, don’t invent it in a reminder; mention it in your next contract instead. Our free invoice template guide shows where the late fee line belongs.
Template 1 — 7 days past due: the friendly nudge
When: one week after the due date. Tone: assume an oversight. Most invoices at this stage get paid within days of this email.
Subject: Quick reminder: invoice [1042] for $[amount]
Hi [Name],
Hope you’re doing well. This is a quick reminder that invoice [1042] for $[amount], sent on [date], was due on [due date].
If it’s already on its way, thank you — you can ignore this. If not, you can pay it here in under a minute: [payment link]
If anything on the invoice looks off, just reply to this email and I’ll fix it today.
Thanks, [Your name]
Template 2 — 14 days past due: polite, but specific
When: two weeks past due, or a week after the first nudge went unanswered. Tone: still warm, but now you name dates and ask for a date back.
Subject: Invoice [1042] — now 14 days overdue
Hi [Name],
Following up on invoice [1042] for $[amount], which was due on [due date] and is now 14 days overdue. I’ve re-attached it here, and you can pay it directly at [payment link].
If there’s a problem with the invoice or with the work, tell me what it is and we’ll sort it out. If it’s just timing, that’s fine too — but I do need a date from you for when this will be paid.
Thanks, [Your name]
Why this works: asking “when will this be paid?” instead of “please pay” forces a concrete answer. A client who replies with a date usually pays on it — they’ve made a commitment instead of receiving a request.
Template 3 — 30 days past due: the serious one
When: a month past due. Tone: short, formal, consequences stated factually. This is the email where the relationship stops being the priority and the record starts mattering.
Subject: Invoice [1042] is 30 days overdue — action needed
Hi [Name],
Invoice [1042] for $[amount] was due on [due date] and remains unpaid after two reminders.
As agreed in our [contract/proposal], a late fee of [1.5% per month] applies to overdue balances, and ongoing work is paused until this invoice is settled.
Please pay by [specific date] using this link: [payment link]. If payment is already scheduled, reply with the date so I can note it.
If I don’t hear from you by [specific date], I’ll need to escalate this, which I’d rather not do.
[Your name]
Note: only include the late fee line if it was genuinely agreed before the work. If it wasn’t, delete that sentence — an invented fee gives the client a legitimate dispute and weakens everything else in the email.
Template 4 — 60 days past due: the final notice
When: two months past due, or when the client has stopped replying at any stage. Tone: this email doesn’t ask. It sets a deadline, a consequence, and one easy way back — which is exactly why it gets answered more often than any reminder before it.
Subject: Closing invoice [1042]
[Name], I’ve sent invoice [1042] for $[amount] several times without a reply, so if I don’t hear from you by [Friday], I’ll close the file and pass it on for collection.
If something’s wrong, tell me today and we’ll sort it out.
[Your name]
Send it once. Then actually do what it says. A final notice that gets followed by three more reminders teaches the client that your deadlines are decorative.
What to do if the final notice gets ignored too
- Collection agency: typically takes 25–50% of what they recover. Worth it on larger invoices you’d otherwise write off entirely; agencies that work on contingency cost nothing if they recover nothing.
- Small claims court: filing fees are usually modest (often $30–$75 depending on the state and amount), and many freelancers recover the full invoice plus the fee. Limits vary by state, commonly $5,000–$10,000.
- Write it off properly: if you decide the money is gone, record it correctly in your books rather than leaving a phantom receivable open forever — and tighten your process for the next client: deposit upfront, shorter terms, late fee agreed in writing from day one.
Our full guide on how to get clients to pay invoices on time covers the prevention side: the terms, deposits, and invoice habits that keep you out of this sequence in the first place.
How to stop writing these emails by hand
The honest problem with templates is that you still have to remember to send them, on the right day, for every invoice. That’s why most follow-up systems fall apart by the third busy week.
ABsort sends this exact sequence automatically: the invoice goes out with a payment link, reminders follow a schedule you set, and the invoice marks itself paid the moment the client pays — so you only ever see the accounts that reach the serious stages, instead of chasing the ones a nudge would have fixed. See how to send invoices to clients for the full flow.
Frequently asked questions
When should you send the first past due invoice email?
About 7 days after the due date for most clients — soon enough that the invoice is still fresh, late enough that a payment already in transit has time to land. For a first late payment from a good client, friendly always beats instant.
How many reminder emails should you send before a final notice?
Three is the standard working sequence: a friendly nudge around 7 days past due, a firmer one at 14, and a serious one at 30. The final notice follows at around 60 days, or sooner if the client stops responding entirely.
Can you charge a late fee if it wasn’t on the original invoice?
Generally no. A late fee is only enforceable if the client agreed to it before the work started — in the signed contract, the accepted proposal, or the terms on the first invoice. That’s why the fee belongs on every invoice you send, from the very first one.
Should you keep working for a client with an overdue invoice?
Pausing work at around 30 days past due is standard practice and is itself one of the strongest signals you can send. State it neutrally and in advance, as the 30-day template does, rather than announcing it mid-argument.
Get started with ABsort and let the reminder sequence send itself — invoicing, payment links, and automatic follow-ups from $12/month billed annually.