# How to ask a customer for overdue payment politely (with WhatsApp templates) By Udhaar Wapas Editorial Team · Published 07-Nov-2026 · Updated 07-Nov-2026 Ask early, be specific and make paying easy. Send a short WhatsApp message during business hours that names your business, the invoice number, amount and due date, and includes a UPI payment link. If the customer cannot pay now, ask for a date they can commit to, and follow up on that date. ## Key takeaways - Always include the invoice number, amount, due date and a payment link in every reminder. - Message only between 08:00 and 19:00, a window modelled on RBI's rule for lenders' recovery agents, and no more than once a day. - Ask for a specific promise-to-pay date instead of accepting a vague 'soon'. - Thank customers for part payments and confirm the balance in writing. - Keep the tone firm and respectful. Never threaten, shame or message the customer's contacts. ## The four principles behind every good reminder Most overdue invoices are not fraud. They are the result of a busy owner, a cash crunch or an invoice stuck with the wrong person. A good reminder respects that and still gets you paid. 1. **Be specific.** Business name, invoice number, amount, due date. A vague "please clear dues" is easy to ignore. 2. **Make paying effortless.** Include a [UPI payment link](/en/glossary/upi-payment-link) in every message. One tap beats "send me your bank details". 3. **Ask for a date, not a promise.** "Can you confirm a payment date?" gets a far more useful answer than "please pay soon". 4. **Stay respectful.** The customer is a relationship, not a target. Firm is fine; threatening or shaming is not. ## Timing and frequency rules - Send messages only between **08:00 and 19:00**, Monday to Saturday where possible. This window is modelled on the Reserve Bank of India's rule for lenders' recovery agents (RBI circular dated 12 August 2022). That rule binds RBI-regulated lenders, not private suppliers, but it is good practice and buyers recognise it as fair. - **One WhatsApp message per customer per day at most.** More than that feels like harassment, even if each message is polite. - Avoid festival days and the first hour of a working day when shops are opening. - If the customer asks you to stop messaging or to use email instead, **honour it** and switch channels. Replace the placeholders in square brackets before sending: [Customer name], [Your business], [Invoice no.], [Amount], [Date] and [UPI link]. ## 1. Before the due date **English** ``` Namaste [Customer name], this is [Your business]. A friendly heads-up that invoice [Invoice no.] for ₹[Amount] is due on [Date]. You can pay here: [UPI link]. Thank you for your business! ``` **Hindi** ``` नमस्ते [Customer name] जी, [Your business] की ओर से। आपका बिल [Invoice no.] ₹[Amount] की तारीख [Date] को देय है। भुगतान के लिए लिंक: [UPI link]। धन्यवाद! ``` ## 2. On the due date (Day 0) **English** ``` Hello [Customer name], [Your business] here. Invoice [Invoice no.] for ₹[Amount] is due today. Invoice attached for your reference. Pay in one tap: [UPI link]. Please ignore if already paid. ``` **Hindi** ``` नमस्ते [Customer name] जी, [Your business] से। बिल [Invoice no.] ₹[Amount] का भुगतान आज देय है। बिल साथ में भेजा है। भुगतान लिंक: [UPI link]। अगर भुगतान हो गया है तो कृपया इस संदेश को नज़रअंदाज़ करें। ``` ## 3. Day 3, asking for a promise date This is the most important message. You are not asking whether they will pay; you are asking when. **English** ``` Hi [Customer name], [Your business] here. Invoice [Invoice no.] for ₹[Amount] is now 3 days overdue. We understand things get busy. Could you share the date by which you can make the payment? Link: [UPI link] ``` **Hindi** ``` नमस्ते [Customer name] जी, [Your business] से। बिल [Invoice no.] ₹[Amount] तीन दिन से बकाया है। हम समझते हैं कि काम में व्यस्तता रहती है। कृपया बताएं कि आप किस तारीख तक भुगतान कर पाएंगे? लिंक: [UPI link] ``` Write the promised date down the moment you get it. Our glossary explains why a [promise to pay](/en/glossary/promise-to-pay) is worth tracking. ## 4. After a broken promise Stay calm and factual. Remind them of their own date, not your frustration. **English** ``` Hello [Customer name], [Your business] here. As discussed, payment of ₹[Amount] for invoice [Invoice no.] was planned for [Promised date]. We have not received it yet. Could you please pay today or let us know a new firm date? [UPI link] ``` **Hindi** ``` नमस्ते [Customer name] जी, [Your business] से। बातचीत के अनुसार बिल [Invoice no.] का ₹[Amount] भुगतान [Promised date] तक होना था, जो अभी तक नहीं मिला है। कृपया आज भुगतान करें या नई पक्की तारीख बताएं। [UPI link] ``` ## 5. After a part payment Always say thank you. A customer who feels appreciated for paying something is more likely to clear the rest. **English** ``` Thank you, [Customer name]! [Your business] has received ₹[Paid amount] against invoice [Invoice no.]. The balance is ₹[Balance]. Could you confirm when the remaining amount will be paid? [UPI link] ``` **Hindi** ``` धन्यवाद [Customer name] जी! [Your business] को बिल [Invoice no.] के लिए ₹[Paid amount] मिल गए हैं। बाकी राशि ₹[Balance] है। कृपया बताएं कि शेष भुगतान कब तक होगा? [UPI link] ``` ## 6. Final reminder before a formal letter This is the last informal message. It is firm, gives a clear deadline and explains the next step without threatening. **English** ``` Dear [Customer name], this is [Your business]. Invoice [Invoice no.] for ₹[Amount] has been overdue since [Due date] despite our reminders. We value our relationship and would like to settle this amicably. Please pay by [Deadline] using [UPI link] or call us to discuss. Otherwise, we will send a formal demand letter. ``` **Hindi** ``` आदरणीय [Customer name] जी, [Your business] की ओर से। बिल [Invoice no.] ₹[Amount] हमारे कई अनुरोधों के बावजूद [Due date] से बकाया है। हम आपके साथ अच्छे संबंध बनाए रखना चाहते हैं। कृपया [Deadline] तक [UPI link] से भुगतान करें या बात करने के लिए कॉल करें। अन्यथा हमें औपचारिक मांग पत्र भेजना पड़ेगा। ``` If you do get to that point, our guide on [legal notice vs demand letter](/en/blog/legal-notice-vs-demand-letter) explains what to send, and the [demand letter generator](/en/tools/demand-letter-generator) drafts one for you. ## What never to write > Never use abusive language, threats of physical harm, threats to "expose" the customer, or messages to their family, staff or other suppliers. Do not post about a customer's debt in WhatsApp groups or on social media. Besides damaging the relationship, threatening someone's person, reputation or property to make them pay can amount to criminal intimidation under Section 351 of the Bharatiya Nyaya Sanhita, 2023 (in force since 1 July 2024), and can invite complaints of harassment or defamation. A good rule of thumb: if you would be uncomfortable seeing your message read aloud in front of a judge or the customer's family, rewrite it. ## When to stop messaging and pick up the phone If three messages have gone unanswered, more text rarely helps. A short, polite call during business hours often uncovers the real issue: a disputed item, a missing GST detail, or a cash crunch you can solve with a part-payment plan. For distributors handling dozens of buyers, see how we approach this on the [for distributors](/en/for-distributors) page. Udhaar Wapas runs this whole sequence for each overdue invoice, with a promise-date picker in the Day 3 message and a human caller on Day 7, while respecting the same timing rules. See [how it works](/en/how-it-works). ## Frequently asked questions ### Is it okay to send payment reminders on WhatsApp? Yes, for customers who already deal with you on WhatsApp. Keep messages business-like, send them between 8 am and 7 pm and stop if the customer asks you to use another channel. The 8 am to 7 pm window is modelled on RBI's rule for lenders' recovery agents (RBI circular dated 12 August 2022); it does not legally bind private suppliers, but it is good practice. For formal steps such as a demand letter, also send it by email or post so you have a clear record. ### How many reminders should I send before calling? A common rhythm is one message before the due date, one on the due date and one about three days later asking for a payment date. If there is no reply after that, a polite phone call usually works better than more messages. ### Should I mention interest under the MSMED Act in reminders? Not in early reminders. Mention it calmly in a later message or in a formal letter if the invoice is long overdue and you are a Udyam-registered micro or small enterprise in manufacturing or services. Do not mention it if you are registered as a retail or wholesale trader: the Ministry of MSME has excluded traders from the delayed-payment provisions (Office Memorandum dated 1 September 2021). Leading with interest can make a routine delay feel like a dispute. ### What if the customer stops replying? Keep to one message a day at most, try a phone call during business hours, and then move to a formal demand letter. Do not contact their family, staff or other suppliers about the debt. ## Sources - [RBI circular dated 12 August 2022 on recovery agents (contact hours)](https://www.rbi.org.in/scripts/FS_Notification.aspx?Id=12378) - [Ministry of MSME Office Memorandum dated 1 September 2021 (delayed payments and traders)](https://www.dcmsme.gov.in/scan0052.pdf) Source: https://udhaar-wapas.com/en/blog/polite-payment-reminder-whatsapp-templates