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Payments & collections

Payments & collections

Payment Reminder Templates for Every Stage of an Overdue Invoice

Last checked 20 October 2026 · 7 min read · Billing Software by Betterwork

A good payment reminder names the invoice number, amount, due date and a one-tap way to pay, and its tone gets firmer at each stage. Use a friendly note 3 days before the due date, a 'due today' message, a polite overdue reminder at 7 days, an escalation at 15 days and a final notice at around 30 days that states what happens next.

Chasing payments feels awkward, which is why many business owners put it off until the cash runs short. A ready set of reminder templates removes the awkwardness: you send the right message at the right stage, every time, without having to compose it under pressure.

Below are copy-ready templates for WhatsApp, email and SMS, a recommended schedule, and the details every reminder must contain. Replace the text in square brackets with your own details.

What should every payment reminder include?

Whatever the stage or channel, a reminder should let the customer pay without asking a single question.

Element Why it matters
Invoice number and date Lets their accounts team find it instantly
Amount due Avoids "how much was it?" replies
Due date Makes it clear whether they are early, on time or late
Payment link or UPI ID One tap to pay; removes friction
Bank details (for larger B2B) Many companies pay by NEFT/RTGS
Invoice PDF or link Saves them searching old messages
Your name and phone number A human contact for questions

Leave out anything that distracts: long sign-offs, promotions, or a list of unrelated invoices in an early reminder.

What is a good reminder schedule?

Use a predictable rhythm. Customers learn that your reminders are routine, not personal.

  1. Invoice day – send the invoice with due date and payment link.
  2. 3 days before due – friendly heads-up.
  3. Due date – "due today" message.
  4. 7 days overdue – polite overdue reminder asking for an expected date.
  5. 15 days overdue – firmer escalation, often to the owner or finance head, plus a phone call.
  6. 30 days overdue – final notice stating the next step.

Adjust the gaps for your credit terms. On 7-day terms, compress the schedule; on 45-day terms with large companies, add a check a week after invoicing to confirm the invoice has been received and approved. For the wider collection process, see how to get paid faster.

Templates: before the due date

WhatsApp – 3 days before due

Hi [Name], a quick reminder that invoice [INV-2026-0142] for ₹[18,880] is due on [5 Nov 2026]. You can pay here: [payment link]. Invoice copy: [link]. Thank you! – [Your name], [Business name]

Email – 3 days before due

Subject: Invoice [INV-2026-0142] due on [5 Nov 2026]

Dear [Name],

This is a friendly reminder that invoice [INV-2026-0142] dated [21 Oct 2026] for ₹[18,880] is due on [5 Nov 2026].

Pay by UPI or card: [payment link] Bank transfer: [Account name], [A/c no.], [IFSC]

The invoice is attached for your reference. If it has already been processed, please ignore this message.

Regards, [Your name] | [Phone]

SMS – 3 days before due

[Business]: Invoice [0142] of Rs [18,880] is due [05-Nov]. Pay: [short link]

Templates: on the due date

WhatsApp – due today

Hi [Name], invoice [INV-2026-0142] for ₹[18,880] is due today. Pay in one tap: [payment link]. Please share the UTR once paid so we can update our records. Thanks!

Email – due today

Subject: Payment due today – Invoice [INV-2026-0142]

Dear [Name],

Invoice [INV-2026-0142] for ₹[18,880] is due today, [5 Nov 2026]. You can pay here: [payment link], or by bank transfer to the account shown on the invoice.

Please let me know if anything on the invoice needs correction.

Regards, [Your name]

Asking for the UTR (the bank's transaction reference) helps you match the payment quickly, especially when a customer pays several invoices together.

Templates: overdue reminders

WhatsApp – 7 days overdue

Hi [Name], our records show invoice [INV-2026-0142] for ₹[18,880], due on [5 Nov], is still unpaid. Could you let me know when we can expect payment? Link: [payment link]. If there's any issue with the invoice, I'm happy to sort it out.

Email – 7 days overdue

Subject: Overdue: Invoice [INV-2026-0142] – ₹[18,880]

Dear [Name],

I hope you are well. Invoice [INV-2026-0142] for ₹[18,880] was due on [5 Nov 2026] and is now 7 days overdue.

Could you please confirm the expected payment date? If there is a query on quantity, rate or GST details, let me know and we will resolve it quickly.

Payment link: [link]

Regards, [Your name] | [Phone]

Email – 15 days overdue (escalation)

Subject: Second reminder: ₹[18,880] overdue since [5 Nov 2026]

Dear [Name / Finance Head],

Despite our earlier reminders, invoice [INV-2026-0142] for ₹[18,880] remains unpaid, 15 days after its due date.

Please arrange payment by [27 Nov 2026]. If payment has been made, kindly share the UTR. If there is a reason for the delay, I would appreciate a call so we can agree a plan.

We value working with you and would like to keep supplies running smoothly.

Regards, [Your name] | [Phone]

The last line is a gentle signal that future supplies depend on payment, without making a threat at this stage.

Templates: final notice

Email – about 30 days overdue

Subject: Final notice: outstanding balance of ₹[56,640]

Dear [Name],

The following invoices remain unpaid:

Invoice Date Due date Amount
INV-2026-0142 21 Oct 2026 5 Nov 2026 ₹18,880
INV-2026-0157 28 Oct 2026 12 Nov 2026 ₹37,760
Total ₹56,640

Please ensure payment of ₹56,640 reaches us by [10 Dec 2026]. Until the balance is cleared, we will be unable to dispatch new orders on credit.

[For Udyam-registered micro/small enterprises, optional:] As a registered micro enterprise (Udyam No. [UDYAM-XX-00-0000000]), we are entitled under the MSMED Act to interest on delayed payments and may approach the MSME Samadhaan portal if the matter remains unresolved.

Regards, [Your name], [Designation]

Check the total: ₹18,880 + ₹37,760 = ₹56,640. Always double-check arithmetic in a final notice; one wrong number gives a slow payer a reason to delay further.

The MSME paragraph is only for businesses that genuinely hold Udyam registration as micro or small enterprises. According to the MSME Samadhaan portal, such enterprises can apply against buyers who delay payment beyond 45 days of acceptance, with interest at three times the RBI bank rate compounded monthly. Details are in the MSME 45-day payment rule.

Templates for special situations

Acknowledging a part-payment

Hi [Name], thank you, we've received ₹[10,000] against invoice [INV-2026-0142]. The balance of ₹[8,880] is still open. Could you confirm when the remaining amount will be paid?

Responding to a promised date

Hi [Name], thanks for confirming payment of ₹[18,880] by [Friday, 14 Nov]. I'll check on Monday and send a receipt once it's in.

Then actually check on Monday. Following up on promised dates is where most collections succeed or fail.

Reminder for advance payment on an order

Hi [Name], to start production of your order [SO-0087], we need the agreed 30% advance of ₹[35,400]. Payment link: [link]. We'll share the receipt voucher as soon as it's received.

For how advances are treated under GST, see advance payment under GST.

How do you choose the right channel and tone?

  • Small retailers and individual owners: WhatsApp first; they see it within minutes.
  • Companies with accounts departments: Email to the payables address, quoting the PO number; follow with a call to the named contact.
  • Government or large enterprises: Formal email, often plus upload on a vendor portal. Reminders rarely speed approval queues, so focus on submitting correct paperwork early.

Tone should rise gradually: friendly, then polite but direct, then firm and factual. Never use insults, public posts or messages to the customer's family or staff; these damage your reputation and can create legal problems.

Sending at the right time

Send reminders during working hours on weekdays. Messages arriving at 10 pm or on festival days tend to be ignored or resented. A note sent a few days before a customer's known payment run is more useful than one sent the day after it.

How do you track reminders so none are missed?

A template only works if it is sent at the right time. Keep a simple reminder log for every open invoice:

Invoice Due date Stage reached Channel Customer reply Next action
INV-2026-0142 15 Oct 7 days overdue WhatsApp "Will pay Friday" Check receipt on Friday
INV-2026-0150 20 Oct Due today Email None Phone call tomorrow

Follow these steps each morning:

  1. Filter invoices due in the next three days and send the pre-due message.
  2. Send the due-today message to invoices due that day.
  3. Move each overdue invoice to the next stage only after its waiting period ends.
  4. Record every reply, promise to pay or dispute in the log.
  5. Stop reminders as soon as a payment or a genuine dispute is recorded.

If you use Billing Software by Betterwork, payment reminders can be scheduled against each invoice, so the log stays up to date automatically.

Common mistakes in payment reminders

  • No payment link – the customer has to search for bank details and postpones it.
  • Wrong amount that ignores a part-payment or credit note, which starts a dispute.
  • Same message every time, so the customer learns to ignore it.
  • Skipping the expected-date question in overdue reminders.
  • Making threats you will not carry out, which teaches customers your deadlines are soft.
  • Mentioning MSME rights without Udyam registration, which undermines your credibility.
  • Not recording replies, so promised dates are forgotten.

Billing Software by Betterwork can schedule the routine reminders with the invoice and payment link attached and track which invoices are overdue, leaving you to handle the calls and final notices personally. Pair reminders with an ageing report; see accounts receivable management.

Key takeaways

  • Every reminder needs the invoice number, amount, due date and a payment link.
  • Follow a fixed schedule: pre-due, due date, 7, 15 and about 30 days overdue.
  • Raise the tone gradually and always ask for an expected payment date.
  • Double-check totals and account for part-payments and credit notes.
  • Cite MSMED Act rights only if you genuinely hold Udyam registration as a micro or small enterprise.

This guide is general information, not tax advice. Rules last checked on 20 October 2026; confirm with your tax professional for your situation.

Official sources

Payment Reminder Templates for Every Stage of an Overdue Invoice: FAQ

How many payment reminders should I send before calling?

For small amounts, two or three written reminders before a call is usual. For large invoices, call soon after the first overdue reminder, because one conversation often reveals a missing PO number, a dispute or a cash problem that no message will uncover. Keep the written reminders going alongside the call so there is a record.

Is it acceptable to send payment reminders on WhatsApp?

Yes, many Indian businesses prefer it because the message is seen quickly. Use a business number, keep the tone professional, include the invoice PDF or link, and avoid messaging late at night. For companies with formal accounts teams, also email the reminder so it lands in their payables workflow.

Can I charge interest in a payment reminder?

You can mention interest if it was agreed in your terms. Micro and small enterprises registered on Udyam can also cite the MSMED Act, under which delayed payments carry compound interest with monthly rests at three times the RBI bank rate. Do not threaten charges you have no basis for.

What should a final notice include?

List every unpaid invoice with dates and amounts, the total due, the date by which payment must reach you, and the specific consequence, such as holding further supplies or filing on the MSME Samadhaan portal. Keep it factual and calm; a final notice may later be read by a facilitation council or a lawyer.

Should reminders go out automatically?

Automation is ideal for the routine stages: the pre-due nudge, the due-date message and the first overdue reminder. Escalations and final notices are better reviewed by a person, because you may know about a dispute, a promised payment date or a part-payment that the system has not recorded yet.

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