# Payment Reminder Email Template and Wording Source: https://nerix.ai/blog/payment-reminder-emails-that-get-paid A payment reminder email template and the wording for each stage: when to send it, what to write, what to attach and when to move to a formal demand. The nerix team Published October 21, 2026 5 min read Sales and contracts invoices In this guide ## Key takeaways - Send invoices promptly and to the right person. - Follow a steady sequence: a heads-up, a plain reminder, a clear follow-up, a firm notice, then a formal demand. - Keep each message short, specific and polite, with the invoice attached again. - Most clients pay when it is easy to pay and clear that you will follow up. Chasing money is awkward, and most people put it off. The cost of that delay is real: the longer an invoice stays unpaid, the less likely it is to be paid at all, and the more it hurts your cash flow. Good news: most late payments are not hostile. People forget, an invoice goes to the wrong person, an approval is stuck. A calm, clear reminder sent on time fixes most of them. Below is a sequence of payment reminder emails, what to say in each, with a template for each stage, and when to stop being polite and start being formal. ## Start before there is a problem The best reminder is the one you never need to send. Most of what gets invoices paid on time happens before they are late: - **Agree terms in writing.** The due date, the amount and how to pay should be stated in the quotation or contract, and repeated on the invoice. - **Invoice promptly.** An invoice sent a month after the work arrives when the client has stopped thinking about it. - **Make paying easy.** Put bank details or a payment link where they cannot be missed. State the invoice number to use as a reference. - **Send it to the right person.** Ask who approves and pays invoices, and address it to them, not only to the person you work with. - **Be consistent.** If you chase some clients and not others, they notice. Our free [invoice template](https://nerix.ai/templates/invoice) covers the essentials, and a [payment reminder template](https://nerix.ai/templates/payment-reminder) is ready for the next step. ## A sequence that works Choose a rhythm, write it down, and follow it for everyone. Here is a sensible one. Adjust the days to your terms. ### Before the due date: a friendly heads-up (optional) Three to five days before it falls due, a short note: "Just a reminder that invoice 1042 for 1,200 EUR is due on 14 November. Bank details are on the invoice. Let me know if anything is needed from our side." Not everybody does this. It helps most with new clients and large invoices. ### The day after: a plain reminder The day after the due date, send a short, neutral message. Assume an oversight. "Our records show invoice 1042 was due yesterday and has not been paid yet. It may have crossed with your payment. If it has, thank you, and please ignore this. The invoice is attached again for convenience." ### A week after: a clear follow-up If there is no answer, write again, still polite, but more direct. State the invoice, the amount, the original due date and how many days overdue it is. Ask for a specific action and date: "Please let me know by Friday when payment will be made, or if something is holding it up." ### Two to three weeks after: a firm notice Change the tone, not the manners. Be explicit that this is the second or third reminder. State what you will do next: pause further work, add the late fee your agreement allows, or send a formal demand. "If we have not received payment by 28 November, we will have to pause work on the current project." ### After that: the formal demand If a client who clearly received the invoice still does not pay, a formal demand letter is the next step. It restates the facts, the amount, the deadline and the consequences, in writing. Our [demand letter for an unpaid invoice](https://nerix.ai/templates/demand-letter-for-unpaid-invoice) is a careful starting point. Before you send one, or consider collection or legal action, check what applies where you are, and consider asking a professional. Rules about interest, fees and notices vary widely. ## What every reminder should contain Whatever the stage, include the same details, so the reader can act without looking anything up: - **The invoice number and date.** - **The amount and currency.** - **The original due date.** - **How to pay**, with the reference to use. - **The invoice attached again.** Never make them search for it. - **One clear request**, with a date. - **A way to reach you** if there is a problem. Keep it short. A reminder that needs scrolling will not be read to the end. ## Tone: firm is not rude You can be kind and clear at the same time. Some principles: - **Assume good faith at first.** Most delays have innocent reasons, and an accusing tone makes people defensive. - **Be specific, not emotional.** "The invoice is 12 days overdue" is better than "I am very disappointed". - **Do not threaten what you will not do.** If you say you will pause work, be ready to. - **Keep every message on the facts.** You may need these emails later. Write each one as though a third party will read it. - **Thank them when they pay.** It costs nothing and keeps the relationship intact. Try it on your own work. nerix writes the first draft, answers from your documents with the page each sentence came from, and keeps the team's work in one place. Start on the free plan. Start free ## Phone, too Email is a good record, but a short phone call or message can unstick a payment in minutes, especially when the problem is process rather than intention. After the second reminder, consider calling, and follow up by email with a summary: "Thanks for the call. As discussed, payment of invoice 1042 will be made on 21 November." ## When the client says they cannot pay yet Sometimes the answer is honest: cash is short. You have options, and it is better to choose one than to let the invoice age: - A short extension, in writing, with a new date. - A payment plan, with amounts and dates, confirmed in writing. - A partial payment now, the rest later. Whatever you agree, put it in an email and ask them to confirm. A vague promise helps nobody. If you offer a plan, think about what you will do if the first date is missed. ## Using AI to draft reminders nerix can write these for you. Ask in the chat to write an email, tell it the invoice number, the amount, the due date and how late it is, and say what tone you want. It writes the draft, and what it cannot know, such as a name or an amount, stays as a blank for you to fill in. You can then make it shorter, warmer or firmer with one click, and copy it or open it in your email app to send. Two honest limits. nerix is not an accounting or invoicing system, so it does not know which of your invoices are overdue unless you tell it, and it does not chase them for you on a schedule. Keep that tracking in your accounting tool or a simple list. And it is not a lawyer: before any demand letter or collection step, check what the rules are where you are. ## The short version Set clear terms. Send invoices promptly and to the right person. Follow a steady sequence: a heads-up, a plain reminder, a clear follow-up, a firm notice, then a formal demand. Keep each message short, specific and polite, with the invoice attached again. Most clients pay when it is easy to pay and clear that you will follow up. ## Questions people ask When should I send the first payment reminder? Many businesses send a friendly note a few days before the due date, then another on the day after it passes. What matters is a steady rhythm that clients can predict, and the reminder going out every time. Should I charge late fees or interest? Only if your agreement or the law allows it, and only if you told the client in advance. Rules differ by country, so check what applies where you are before adding charges to a reminder. What if the client says they never got the invoice? Resend it at once, with the due date restated, and ask them to confirm receipt. Keep the record of when and to which address you first sent it. n/ About the author The nerix team The nerix team writes these guides in plain words for small teams, with templates you can fill in and use today. 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Fill it in - ### [Payment follow-up email](https://nerix.ai/templates/payment-follow-up-email) Nudge a client about an unpaid invoice, kindly and with everything they need to pay. Fill it in - ### [Demand letter for an unpaid invoice](https://nerix.ai/templates/demand-letter-for-unpaid-invoice) Send a firm final demand for an overdue invoice before you take further steps. Fill it in ## In nerix - [Chat with sources](https://nerix.ai/product/chat) - [Documents and the Sheet](https://nerix.ai/product/sheet) ## Try it on your own work. nerix writes the first draft, answers from your documents with the page each sentence came from, and keeps the team's work in one place. Start on the free plan. Start free See the plans ## Keep reading - Sales and contracts pricing [Sales and contracts](https://nerix.ai/blog/category/sales-and-contracts) October 21, 2026 5 min read ### [A price increase notice that keeps your customers](https://nerix.ai/blog/price-increase-notice-that-keeps-customers) How to write a price increase letter to customers: decide a fair rise, tell them early, explain the reason clearly and answer pushback. Template included. Read the guide - Sales and contracts bookkeeping [Sales and contracts](https://nerix.ai/blog/category/sales-and-contracts) November 1, 2026 6 min read ### [Bookkeeping basics for small business](https://nerix.ai/blog/bookkeeping-basics-for-small-business) Bookkeeping basics for a small business: what to record, how debits and credits work, a simple monthly routine and when to bring in an accountant. Read the guide - Sales and contracts rfp [Sales and contracts](https://nerix.ai/blog/category/sales-and-contracts) October 21, 2026 5 min read ### [Ask suppliers the right way with a request for proposal](https://nerix.ai/blog/request-for-proposal-ask-suppliers-the-right-way) How to write a short request for proposal or quote that gets comparable offers: describe the need, set the rules, ask the same questions and choose fairly. Read the guide - [invoices](https://nerix.ai/blog/tag/invoices) - [payments](https://nerix.ai/blog/tag/payments) - [email](https://nerix.ai/blog/tag/email)