Exhibit A
Add 18% to a month's bill, then see what comes back
The formula
Message charges, ex-GST₹18,000plusPlatform fee and seats, ex-GST₹4,500timesGST multiplier (1 + 18%)1.18equalsInvoice total, GST included₹26,550
Invoice total, GST included
₹26,550
Updates as you move any slider.
Worked left to right
- 18,000plus4,500equals22,500
- 22,500times1.18equals26,550→ ₹26,550
18% GST is CGST 9% + SGST 9% within a state, or IGST 18% between states.
Invoice total, GST included = ₹26,550.
What is GST on WhatsApp billing?
In India, WhatsApp Business messaging is a taxable service. Goods and Services Tax (GST) at 18% applies on top of the message charges and on top of a provider's platform fee, agent seats and add-ons. Rate cards are normally quoted ex-GST, so every quoted per-message rate becomes that rate plus 18% on the invoice, and a month's bill grows by the same proportion. GST on WhatsApp billing is about that tax line; the WhatsApp invoice as a document, and the billing cycle behind it, is a wider topic.
How the 18% appears depends on who bills you and from where. An Indian provider billing a customer in the same state charges CGST at 9% plus SGST at 9%; billing a customer in another state, it charges IGST at 18%. When a business pays a foreign entity directly for a service, GST is usually not on that invoice, and a GST-registered business generally pays it itself under the reverse-charge mechanism. Eligible Indian accounts billed directly by Meta must move their billing currency to rupees by 31 December 2026, so check how tax is shown on the INR invoices you receive.
For a registered business the tax is usually recoverable. If the invoice carries the business's GSTIN, the service is used for business, and the supplier reports the invoice so that it appears in the buyer's GSTR-2B, the GST paid can be claimed as input tax credit (ITC) against the business's own output tax. That is why finance teams analyse WhatsApp costs — and their effective cost per message — ex-GST, while an unregistered business has to budget the full 18% as cost.
Key takeaways
- In India, WhatsApp message charges and provider fees attract 18% GST on top of the ex-GST rates on a rate card.
- Within a state the 18% is split into CGST 9% and SGST 9%; between states it is charged as IGST 18%.
- A GST-registered business can usually claim it back as input tax credit if the invoice carries its GSTIN and appears in GSTR-2B.
- Paying a foreign entity directly for a service usually means paying the GST yourself under the reverse-charge mechanism.
- Credit for a financial year must be claimed by 30 November of the following year, or by the annual return if that is earlier.
How does GST on WhatsApp billing work?
Price ex-GST, budget with GST
Rate cards and calculators quote ex-GST rates. Add 18% for cash-flow planning, and leave it out of cost-per-message analysis if you claim input tax credit.
Give the provider your GSTIN and billing state
The GSTIN and registered state on your account decide whether invoices show CGST plus SGST or IGST, and whether you can claim the credit at all.
Check each tax invoice
It should show the supplier's name, address and GSTIN, a unique invoice number and date, your name, address and GSTIN, the service accounting code (SAC), the taxable value, the GST rate and amount by tax type, and the place of supply.
Match it in GSTR-2B
Credit is available only when the supplier has reported the invoice and it appears in your GSTR-2B. Make this part of monthly billing reconciliation and chase missing invoices before you file.
Claim within the deadline
Input tax credit for a financial year must be claimed by 30 November of the following year, or by the date you file the annual return if that is earlier.
Example: A Pune clinic chain claims its credit
A clinic chain registered in Maharashtra buys WhatsApp messaging from a provider registered in Karnataka. Each monthly invoice lists message charges and the platform fee as taxable value with IGST at 18%, because supplier and customer are in different states. The accounts team checks that every invoice carries the chain's GSTIN and appears in GSTR-2B, then claims the IGST as input tax credit. In the internal cost report WhatsApp appears ex-GST: the tax was paid, but it was recovered.
Common mistakes with GST on WhatsApp billing
Leaving the GSTIN off the account
Without it the provider issues a consumer invoice and the credit is lost. Add your GSTIN and registered address before the first top-up or invoice.
Comparing ex-GST and GST-inclusive quotes
Some quotes include tax; most rate cards do not. Put every quote on the same basis before comparing providers or channels.
Never checking GSTR-2B
An invoice the supplier did not report cannot be claimed. Reconcile every month and raise gaps with the provider while they are easy to fix.
Forgetting reverse charge on foreign bills
Paying a foreign entity directly for a service usually means you pay the GST yourself under reverse charge. Confirm the treatment with your tax adviser instead of assuming no tax is due.
GST FAQs
What GST rate applies to WhatsApp Business API charges?+
Can I claim input tax credit on WhatsApp messaging?+
Is GST charged when I top up a prepaid wallet?+
Are per-message rates quoted with or without GST?+
Why does GST on WhatsApp billing matter?
GST is the line many teams forget when they compare a rate card with a bank statement: every rupee of WhatsApp spend carries another 18 paise of tax. Getting the invoice right decides whether that 18% comes back — an invoice without your GSTIN, with the wrong place of supply, or never reported by the supplier can make the credit unavailable and turn a pass-through tax into a real cost.
Best practices for GST on WhatsApp billing
- Keep provider invoices and wallet top-up documents in one folder per financial year.
- Ask whether GST on a prepaid wallet is charged at top-up or on usage, so you know which document carries the credit.
- If a provider bills you in arrears on a credit line, expect one tax invoice per billing cycle instead of per top-up.
- Check the place of supply on every invoice; the wrong state means the wrong tax type.
* Per-message rates for India, ex-GST: marketing, utility and authentication effective 1 July 2026; service messages ₹0.145 since 1 October 2026 (they were ₹0 until 30 September 2026). Volume commitments earn discounts — final rate is confirmed on your account; applicable GST extra. Rates for other countries differ (see the international rate table on /pricing).