Payment Reminder Letter
Polite first, second or final reminder for an unpaid invoice.
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Dear Sir / Madam,
This may well have been overlooked, so this is a gentle reminder. Invoice [reference] for $ [amount] fell due on [date] and is still showing as unpaid on our records.
If payment has already been sent, please ignore this and let us know the date and reference so we can trace it. If not, we would be grateful for payment within [number] days.
If there is a problem with the invoice or a difficulty paying it, please tell us — we would rather work something out than chase.
What is a Payment Reminder Letter?
A payment reminder is a dated request for an invoice that has passed its due date, sent as a first, second or final notice. It matters for two reasons: most late invoices are late because of an internal blockage at the buyer rather than a refusal to pay, and if the account does eventually go to a claim, the trail of reminders is what shows you gave fair notice before escalating.
Freelancers, tradespeople, agencies, consultancies, small manufacturers and landlords all send these, as do credit control teams working a ledger. The pattern is usually three stages: a short note a few days after the due date, a firmer one a fortnight later naming the consequences, and a final notice with a deadline and a stated next step. Each has a different job. The first assumes an oversight, the last removes the assumption.
What you can add on top of the invoice differs by country and by customer type. Business-to-business sellers in the United Kingdom can claim statutory interest and a fixed sum under late payment legislation. EU member states apply their own implementation of the late payment directive. Registered micro and small enterprises in India have a specific payment window and interest entitlement under the MSMED Act. Many United States states have prompt payment statutes for construction and public contracts. Consumer debts are treated differently again. Confirm the rate and eligibility before you put a figure in the letter.
A reminder is not a formal demand. It does not by itself create a right to interest — the contract or the statute does that — and it is not a letter before action, a statutory demand or a court filing, each of which has its own requirements and consequences. It does not pause any limitation period. And it will not fix an invoice that is wrong: if the purchase order number is missing or the invoice went to the wrong legal entity, no amount of chasing will get it approved, and reissuing it correctly is faster.
What to put in a Payment Reminder Letter
These are the details this template asks for. Anything left blank is marked in red on the preview so you can see what is still missing.
| Field | What goes in it |
|---|---|
| Business name | For example: Barton Supply Co. |
| Your address | For example: Unit 7, Barton Road, Columbus, OH 43212 |
| Customer name | For example: Halliwell Interiors Inc. |
| Customer address | For example: 44 High Street, Columbus, OH 43215 |
| Invoice / matter reference | For example: INV-4471 |
| Amount owed | For example: 2,400.00 |
| Due since | Free text |
| Which reminder is this | Free text |
| Days to pay | For example: 14 |
| Issued to (full name) | For example: James Whitfield |
| Their address | For example: 588 Kinnear Road, Columbus, OH 43212 |
How to write a Payment Reminder Letter
Check the invoice before you chase it
Confirm it was sent to the right legal entity at the right address, that any purchase order or job number is on it, that the bank details are current, and that nobody has raised a query you missed. A reminder for an invoice the buyer never received, or one they rejected three weeks ago, wastes the first stage of your escalation.
Lead with the facts, not the feeling
Invoice number, invoice date, amount, due date and how many days it is overdue, in the first two lines. If more than one invoice is outstanding, list them with a total rather than writing about the account in general. The person reading it in accounts payable did not order the work and needs to identify the item quickly.
Make it possible to pay immediately
Attach the invoice again and put the payment details in the body: bank name, account number, sort code or IFSC or routing number, and the reference the payer should quote. If you accept card or a payment link, include it. Every extra step between reading the reminder and making the payment is another week.
Match the tone to the stage
A first reminder treats non-payment as an oversight and asks for a payment date. A second states what happens next: work paused, further supply on hold, interest applied under the contract. A final notice gives a specific date and names the step you will take after it — a formal demand, a collection agency, a claim. Do not name a step you will not take.
Set a date and record what you sent
Replace shortly and as soon as possible with a calendar date, and diarise your own follow-up for the day after. Keep copies of each reminder with the date and the address it went to. If you later need to justify interest, a claim or a stop on supply, the sequence of dated reminders is the evidence.
Common mistakes
- Sending every reminder to the person who ordered the work rather than to accounts payable, so it never reaches the queue that pays anything.
- Threatening court in the first reminder, which reads as empty when you carry on trading for another two months and damages a relationship worth keeping.
- Chasing without attaching the invoice, so the buyer replies asking for a copy and the clock starts again.
- Adding interest or a fee with no contractual or statutory basis, which gives the customer a reason to dispute the whole balance.
- Keeping no record of when each reminder went out, leaving you unable to show a court or adjudicator that notice was given.
Frequently asked questions
How soon after the due date should I send a payment reminder?
Common practice is a short note within a few days of the due date, while the invoice is still recent enough that the buyer can find it. Waiting a month signals that your terms are flexible. If your contract sets a specific process for late payment, follow that instead, because departing from an agreed process weakens you if the matter escalates.
Can I charge interest on a late invoice?
Only if your contract provides for it or local law gives you the right. Business-to-business sellers in several jurisdictions have a statutory entitlement, at a rate tied to a published reference rate, and sometimes a fixed recovery sum as well. The rate and the eligibility rules change, so check the current position for your country and customer type before you state a figure.
What is the difference between a reminder and a letter before action?
A reminder asks for payment. A letter before action is the formal step that precedes a claim: it states the amount, the basis of the debt, a deadline and the intention to issue proceedings, and in some jurisdictions its content and notice period are prescribed by a pre-action protocol. Sending one changes the posture, so send it deliberately.
Should I stop work on an unpaid account?
That depends entirely on your contract. Some agreements give an express right to suspend for non-payment after notice; without one, stopping work can itself be a breach that lets the customer claim against you. Check the suspension clause and any notice period it requires before you down tools, and take advice where the contract is substantial.
What if the customer keeps promising to pay and does not?
Move to fixed dates and written confirmations. Ask for a specific payment date in writing, and when it passes without payment, treat that as the trigger for the next stage rather than accepting another promise. Repeated promises without payment often signal a cash problem at their end, which is a reason to act sooner rather than later.
This page explains general practice and is not legal advice. Requirements differ between countries and, in some cases, between states — check what applies where the document will be used.