Past due invoice email templates

Subject: Friendly reminder: Invoice [Invoice #] past due

Hi [Client name],

I hope you're doing well! Just a quick note that invoice [Invoice #] for [Amount] was due on [Due date] and we haven't received payment yet.

If it's already on its way, please disregard this — and thank you! Otherwise, you can pay directly here: [Payment link]

Happy to answer any questions.

Best regards,
[Your name]

Subject: Resending invoice [Invoice #] — due [Due date]

Hi [Client name],

I wanted to make sure invoice [Invoice #] for [Amount] reached you — I've attached another copy just in case it got lost in the shuffle.

It was due on [Due date]. If you could take a look when you get a moment, I'd really appreciate it.

Thanks so much,
[Your name]

Subject: Following up: Invoice [Invoice #] — [Amount] outstanding

Hi [Client name],

I'm following up on invoice [Invoice #] for [Amount], now [X] days past due. I sent a reminder last week but haven't heard back.

If there's an issue with the invoice or you need to discuss timing, just reply — I'm happy to work something out. Otherwise, payment can be made here: [Payment link]

Thank you,
[Your name]

Subject: Checking in on invoice [Invoice #]

Hi [Client name],

This isn't like you — invoice [Invoice #] ([Amount]) is now [X] days past due, and I know you're usually right on time.

Is everything alright on your end? If something's changed or you need to split the payment, let's talk. If it just slipped through, here's the link: [Payment link]

Best,
[Your name]

Subject: Third notice: Invoice [Invoice #] requires payment

Hi [Client name],

This is my third notice regarding invoice [Invoice #] for [Amount], now [X] days overdue. I haven't received payment or a response to my previous messages.

I'd like to get this resolved this week. Please make payment by [Specific date], or contact me directly if there's a problem I should know about.

[Payment link]

Regards,
[Your name]

Subject: Invoice [Invoice #]: late fee applies after [Date]

Hi [Client name],

Invoice [Invoice #] for [Amount] is now [X] days past due. Per the payment terms we agreed to, a late fee of [Rate]% per month applies to balances outstanding beyond [Grace period] days.

To avoid the fee, please settle the invoice by [Specific date]: [Payment link]

If payment has already been sent, let me know and I'll disregard this.

Regards,
[Your name]

Subject: Final notice: Invoice [Invoice #] — response required

Dear [Client name],

Despite several reminders, invoice [Invoice #] for [Amount] remains unpaid after [X] days.

This is a final notice. If I don't receive payment or hear from you by [Specific date], I'll have no choice but to pursue further action to recover the debt, which may include engaging a collections service.

I'd much rather resolve this directly — please pay here [Payment link] or call me at [Phone].

Sincerely,
[Your name]

Subject: Demand for payment: Invoice [Invoice #] — [Amount]

Dear [Client name],

This letter is a formal demand for payment of invoice [Invoice #] in the amount of [Amount], now [X] days past due, plus accrued late fees of [Fee amount] per our agreed terms.

If full payment is not received by [Specific date — 7-10 business days out], the account will be referred to a collections agency, and I may pursue all remedies available, including reporting the debt and recovering collection costs where permitted.

Payment can be made immediately here: [Payment link]

Sincerely,
[Your name]
[Business name]

Subject: Following up on your payment for invoice [Invoice #]

Hi [Client name],

When we spoke on [Date of promise], you mentioned payment for invoice [Invoice #] ([Amount]) would be sent by [Promised date]. I haven't seen it come through yet.

Could you let me know where things stand? If the timing has changed, I'd rather know than guess.

[Payment link]

Thanks,
[Your name]

Subject: Re: Invoice [Invoice #] — let's resolve this

Hi [Client name],

Thanks for flagging your concern about invoice [Invoice #]. I want to get this sorted quickly and fairly.

Could you share the specifics of what you believe is incorrect? I've attached the invoice and [supporting records/timesheets/deliverables] for reference.

If part of the invoice is undisputed, I'd ask that the undisputed portion ([Amount]) be paid now while we resolve the remainder.

Best regards,
[Your name]

Subject: Quick admin item: invoice [Invoice #]

Hi [Client name],

I love working with you, which makes this the least fun email I'll send all week: invoice [Invoice #] ([Amount]) is [X] days past due, and my bookkeeping insists I chase it.

Could you nudge it through on your end? Here's the link to make it painless: [Payment link]

Now, back to the fun stuff — looking forward to [current project/next milestone].

Cheers,
[Your name]