What is the cost of WhatsApp API per message in India?
Since 1 July 2025, WhatsApp bills the Business API per delivered message, priced by message category — marketing, utility, or authentication — not per 24-hour conversation. For an Indian business, the number you actually care about is your blended per-message cost in ₹, which depends on your category mix, how many of your sends land inside a free service window, and your delivery rate. This page breaks down exactly how the per-message model works, what each category costs relative to the others, and how to bring your effective cost down without gaming the system.
Quick answer
WhatsApp charges per delivered message by category. Marketing is the most expensive, utility sits in the middle, and authentication is cheapest; replies inside the 24-hour service window are free. Your ₹ per message is really a blended average across all three categories.Per delivered message, priced by category
WhatsApp moved off the old per-conversation model on 1 July 2025. Today, Meta charges you for each template message that is successfully delivered, and the rate is set by the message's category. India has its own rate card, and the three template categories are priced very differently, which is why there is no single "per message price" — your real cost is a weighted average across the categories you actually send.
- Marketing: promotions, offers, product launches, re-engagement — the highest-priced category
- Utility: order updates, shipping, payment confirmations, appointment reminders — mid-priced
- Authentication: OTPs and login verification codes — the lowest-priced category
- You are billed only on delivered messages; failed or undelivered messages are not charged
The 24-hour window is free, not a billing unit
When a customer messages you first, or when you send a template they respond to, a 24-hour service window opens. Inside that window you can send free-form (session) messages at no per-message charge to keep the conversation going. This is a support and service allowance, not a billing bucket — it does not "contain" a fixed number of paid messages. The practical implication is that responsive, conversation-led messaging is cheaper than one-way blasting, because your human or automated replies inside an open window cost nothing. Template messages sent outside any open window are the ones that carry a per-message charge based on category.
What actually drives your ₹ cost
Because the headline rate varies by category, two businesses sending the same message volume can have very different bills. An e-commerce brand that is heavy on marketing broadcasts will have a higher blended rate than a logistics company sending mostly utility shipment updates, or a fintech app sending mostly authentication OTPs. Beyond category mix, your effective cost is shaped by how clean your opt-in lists are (better targeting means fewer wasted sends), your delivery success rate, and how much of your engagement happens inside free service windows.
- Category mix — the single biggest lever on your blended rate
- Delivery rate — undelivered messages cost nothing but signal list quality problems
- Opt-in quality — relevant, opted-in audiences convert and reduce wasted spend
- Window usage — service replies inside an open 24-hour window are free
How to lower your effective per-message cost
The honest way to reduce cost is to send fewer, better messages rather than trying to reclassify marketing as utility (Meta reviews categories and will re-rate messages that are mis-categorised). Keep your audiences tightly opted-in and segmented so every send has a reason to exist. Design flows that invite a customer reply, which opens a free service window for follow-ups. And use authentication and utility templates where they genuinely apply, since those categories are structurally cheaper than marketing.
- Segment ruthlessly so marketing sends go only to people likely to act
- Lead with utility and authentication use cases where they fit the message intent
- Build conversational flows that open free service windows for follow-up
- Maintain list hygiene to protect your delivery rate and quality rating
How InfiQ prices it
InfiQ is an official Meta Business Partner for the WhatsApp Business API in India, and applies its own transparent ₹ pricing (ex-GST) across the marketing, utility, and authentication categories. You get full ownership of your WhatsApp Business account and its BSUID, so your number, templates, and quality rating stay yours. Because the platform surfaces category-level costs and delivery data, you can see exactly which parts of your messaging drive spend and optimise from there rather than guessing at a single blended figure.