# Demand Letter

**A demand letter is a formal written request from a supplier to a buyer to pay a stated overdue amount by a clear deadline.**

## What it means

A demand letter is the step between friendly reminders and lawyers. It is written by the supplier itself, on letterhead, and sent by email, WhatsApp, courier or registered post. A good demand letter lists:

- The invoices, dates and amounts unpaid.
- Any payments already received.
- The total now due, and interest if you are claiming it.
- A clear deadline to pay.
- How to pay, for example a UPI ID or bank details.
- What you may do next if the amount is not paid.

Between businesses, a demand letter is good practice, not a legal requirement before filing a claim.

## Why it matters for getting paid

A written demand shows you are serious while keeping the tone respectful. It often prompts payment from buyers who ignored WhatsApp messages, and it creates a dated record that is useful if you later send a [legal notice](/en/glossary/legal-notice), file a civil suit, or, as a Udyam-registered micro or small manufacturer or service provider, file under the [MSMED Act](/en/glossary/msmed-act) on the MSME ODR portal. If the buyer replies admitting the debt in writing, keep that reply: a written acknowledgment before the 3-year limit expires starts a fresh limitation period.

Use it when an invoice moves into the older buckets of your [overdue ageing](/en/glossary/overdue-ageing), or after a buyer has broken a [promise to pay](/en/glossary/promise-to-pay) more than once.

Keep it factual. Avoid threats you do not intend to carry out, and never contact the buyer's family or customers. Threatening injury to a person, reputation or property to force payment can amount to criminal intimidation under Section 351 of the Bharatiya Nyaya Sanhita, 2023.

**Example:** "Invoices totalling ₹3,45,000 are overdue. Please pay by 30 November."

Draft one in minutes with the free [demand letter generator](/en/tools/demand-letter-generator), and see [legal notice vs demand letter](/en/blog/legal-notice-vs-demand-letter).

Source: https://udhaar-wapas.com/en/glossary/demand-letter