WhatsApp for CA Firms: Business App, Broadcasts, Channels

WhatsApp for CA firms — OneClick Scheduler guide

In this guide · 9 sections

The ICAI line: inform clients, never solicit
WhatsApp's own rules: opt-in first
Set up the WhatsApp Business app properly
Broadcast lists vs groups vs Channels
Status: the easiest daily update
What not to send on WhatsApp
Scheduling WhatsApp along with your other channels
FAQs
Sources

Key points

Run the firm's WhatsApp on the WhatsApp Business app with a number the firm owns. Fill in the business profile, then set up labels, quick replies, a greeting message and an away message.
A broadcast list reaches up to 256 contacts, and only people who have saved your number receive it. Replies come back to you privately. Groups show members to each other. Channels are one-way, and people choose to follow them.
Under the ICAI Code of Ethics (2.14.1.6(iv)K), you may not send letters, emails or circulars to people "likely to require services". On WhatsApp, that means you message existing clients who have opted in, and you never send cold messages.
WhatsApp's own Business Messaging Policy says the same: contact people only if they gave you their number and agreed to hear from you. Users can block or report you, and that can limit your messaging.
Status is the easiest daily channel. It stays up for 24 hours, your saved contacts see it, and a due-date poster on Status reaches clients without a single forwarded message.

Most clients of an Indian practice will never follow your firm on LinkedIn. They will all reply to you on WhatsApp. It is where they send the Form 16 photo at 11 pm, ask "sir, GST last date?" and forward the notice they just got. Used well, WhatsApp cuts phone calls, reminds clients before deadlines and makes the firm look organised. Used carelessly, it becomes a flood of forwards, a confidentiality risk and, for a chartered accountant, an ICAI problem.

This guide covers the WhatsApp Business app set up properly, the difference between broadcast lists, groups and Channels, Status for daily updates, and where the ICAI rules draw the line. WhatsApp facts come from WhatsApp's own Help Center and Business Messaging Policy, listed at the end.

The ICAI line: inform clients, never solicit

Start with the rule, because it decides everything else. The ICAI Code of Ethics lists forms of soliciting work that the Council has prohibited. Two matter here:

2.14.1.6(iv)K: a member may not address letters, emails or circulars specifically to persons who are likely to require the services of a chartered accountant, since that amounts to advertisement. A WhatsApp message to a list of business owners you don't work for is exactly that.
2.14.1.6(iv)A: members may not use the "less open method" of circulating letters to a small field of possible clients. A broadcast to a purchased or borrowed contact list falls here too.

The same part of the Code says you can't share the firm profile with a prospective client unless they asked for it. So the WhatsApp version of the rule is simple:

Message existing clients, and people who have contacted you first, about their own work and about general compliance information.
Never send cold messages: no lists from a trade association, a society group, a seminar attendance sheet or a data vendor.
Don't forward the firm brochure to someone who didn't ask for it.
Keep fees, discounts, "refer a friend" offers and client testimonials out of every message. The Code bars fees in write-ups (3.3.7(xiii)) and testimonials and endorsements in any write-up (3.1.3 E).

A Channel works differently. People find it and choose to follow it, much like a page. It still counts as a write-up, so the conditions on write-ups apply: no exaggerated claims, no comparisons, no testimonials. Keep a Channel strictly educational. For the full picture, read what a CA can post on social media and Google.

WhatsApp's own rules: opt-in first

WhatsApp's Business Messaging Policy applies to the Business app as well as the paid platform. Its core rule is that you may contact people only if they have given you their phone number and have agreed to receive messages from you. It also warns businesses not to spam or surprise people. Users can block or report a business, and WhatsApp says its systems may limit how many messages a business can send based on that feedback. A practice that broadcasts to people who never asked to hear from it risks the ICAI rules and its own WhatsApp number.

Getting opt-in is easy for a practice:

Add one line to your engagement letter or client onboarding form: "We will send compliance reminders and updates to this WhatsApp number. Reply STOP at any time."
Ask the client to save the firm's number. Broadcasts and Status only reach people who have saved it (see below).
When someone asks to stop, remove them from every broadcast list the same day.

Set up the WhatsApp Business app properly

Use the free WhatsApp Business app, not a partner's personal WhatsApp, and put it on a number the firm owns. When a staff member leaves, the client conversations stay with the firm.

Business profile

The business profile holds public details: business name, address, category, description, hours, email and website. WhatsApp says you can choose up to three categories from its list. You can't type your own. Use the firm's real name, as on your letterhead, set the hours you actually answer, and add the office address so clients get it in one tap. Keep the description factual, the same kind of text you use on your Google profile. If you work without an office clients visit, WhatsApp lets you mark that the business has no physical location and set a service area instead.

Catalogue: only if it helps

The catalogue is built for products. A practice can skip it. If you use it, list a few services in plain words ("ITR filing for salaried individuals", "GST return filing") and leave every price field empty, since fees can't appear in a write-up.

Labels

Labels sort chats by colour and name. WhatsApp allows up to 20 and is gradually replacing labels with "lists". Labels that work for a practice:

ITR clients, GST monthly, GST quarterly (QRMP), TDS, Companies / LLPs, Audit
Documents pending and Fees pending as working labels for staff
New enquiry for people who messaged first, so you can see who isn't a client yet

Labels also make it easy to build the right broadcast lists later.

Quick replies

Quick replies are saved messages you send with a shortcut. WhatsApp allows up to 50. They can include images and videos, but media in quick replies doesn't work on Web or Desktop. The app also creates default replies from your business profile, such as your hours and address. Useful ones for a practice:

/itrdocs: the list of documents needed for an ITR (Form 16, AIS/TIS download, bank interest certificates, capital gains statements, rent receipts).
/gstdocs: sales and purchase data needed before the GSTR-1 and GSTR-3B dates.
/received: "Received, thank you. We will review and revert by [day]."
/upload: how to send documents securely if you use a client portal.

Greeting and away messages

A greeting message goes out automatically when someone messages you for the first time, or after 14 days without a message in that chat. An away message goes out while you are away. One of its options is "outside of business hours", which works only if you have set hours in the profile. For both, you can choose who receives them: everyone, only people not in your address book, everyone except selected contacts, or only selected contacts.

Greeting: Thank you for contacting Sharma & Associates, Chartered Accountants. Please share your name and the matter. Our office hours are 10:00 to 19:00, Monday to Saturday.

Away: Our office is closed now. We will reply on the next working day. For documents, please send them here and we will confirm receipt.

Keep both purely informational. A greeting that lists services and invites new work is solicitation.

Link it from Google

WhatsApp says you can add your WhatsApp Business number to your Google Business Profile, so a click-to-chat button appears when the firm shows on Google Search and Maps. That is a pull channel: the client comes to you. If your Google profile isn't set up yet, start with setting up a Google Business Profile.

One poster, every channel, including WhatsApp Status

OneClick Scheduler posts to Instagram, Facebook, LinkedIn and Google Business Profile at the time you choose. For WhatsApp, it reminds you at that time and you share the same poster to Status with one tap.

Try OneClick Scheduler

Broadcast lists vs groups vs Channels

	Broadcast list	Group	Channel
Who receives it	Contacts on the list who have saved your number	Everyone you add or who joins	People who choose to follow
Size	Up to 256 per list; unlimited lists	Large	Any size
Replies	Private, in their own chat with you	Seen by every member	None, only emoji reactions and poll votes
Members see each other	No	Yes	No; followers don't see your number either
Best use for a practice	Reminders to a client segment	One client's own team, never several clients together	Public educational updates

Broadcast lists

WhatsApp's Help Center says broadcast lists hold up to 256 contacts each and you can create as many as you like. Each recipient gets your message as an ordinary one-to-one chat, and their reply comes only to you. The important line: only people who have added you to their phone's contacts will receive your broadcast. So the saved-number step above isn't optional. Broadcast lists aren't supported on WhatsApp Web, Windows or Mac.

WhatsApp is also gradually introducing a monthly broadcast limit in some countries. Its help page mentions up to 35 free broadcast messages a month where the limit applies. Check Settings > Broadcasts to see whether it applies to you. That alone is a good reason to broadcast only what clients need: the GST date three days before, the advance tax instalment, the ITR deadline.

Build lists from your labels: "GST monthly filers", "ITR individuals", "Company clients". A reminder about the GSTR-3B date means nothing to a salaried ITR client, and irrelevant messages are what get businesses blocked.

Paid "marketing messages"

The Business app now offers paid marketing messages (called business broadcasts in some countries). They can reach customers who have not saved your number, and you pay per delivered message. For a CA, these are best left alone. They are paid push messages, and reaching people who never saved your number moves close to the solicitation the Code prohibits.

Groups

Avoid "Clients of Sharma & Associates" groups. Every member can see who else is in the group, so the group itself tells everyone who your clients are. That is client information you are bound to keep confidential. One client's group (the owner, their accountant and your team) is fine and often practical.

Channels

A Channel is a one-way broadcast to any number of followers. Followers can't reply or message the admins. They can only react with emoji or vote in polls. They don't see your business profile name, picture or phone number. People find Channels through a link you share, through forwards, or in WhatsApp's directory, and the Channel's insights show reach and follows for the last 30 days. Since anyone can find and read it, treat a Channel like a public page: due-date calendars, explainers on new rules, and Budget highlights. Never post client matters, offers or fees.

Status: the easiest daily update

Status updates disappear after 24 hours. WhatsApp shares them with all your contacts by default. You can change that to "My contacts except…" or "Only share with…". You can see who viewed each Status, unless the viewer has turned off read receipts. Videos can be up to 90 seconds.

For a practice, Status is where a due-date poster belongs. It is pull, not push: no one gets a notification or an unread message, but clients who check Status see it. A steady rhythm:

Two or three days before each due date: the reminder poster (GSTR-1, GSTR-3B, TDS payment, advance tax, ITR).
Once a week: one educational poster, such as a new rule explained in three lines.
On festivals: the greeting, with no advertising element.

If you already schedule due-date posters in OneClick Scheduler, tick WhatsApp on the same post and you get a reminder to put it on Status at the right time (see the last section). Use "My contacts except…" to leave out family and personal contacts if the firm number doubles as anyone's personal number. For what to put on the posters, see due date reminder posts for clients.

What not to send on WhatsApp

Anything to someone who didn't opt in, including "just one introductory message".
Fees, packages, discounts or "early-bird ITR offers".
Screenshots of client praise, review links or star ratings. These are testimonials, and asking for reviews is risky. See replying to Google reviews.
One client's details in a broadcast, group or Status, even by accident. Check the attachment before you tap send.
Unverified forwards about "new tax rules from 1 April". A wrong forward from a CA's number does more damage than no message.
Bulk tools and unofficial "WhatsApp senders" that message hundreds of numbers. WhatsApp's policy allows it to limit or remove access for messaging at scale in an unauthorised way.

Scheduling WhatsApp along with your other channels

WhatsApp doesn't let apps post to Status or broadcast lists for you, so no scheduler can post to WhatsApp on its own. OneClick Scheduler works around that honestly. When you create a post, tick WhatsApp along with Instagram, Facebook, LinkedIn or Google. At the scheduled time, the other platforms publish automatically and you get a reminder. Open it on your phone, press Share on WhatsApp, and the poster and caption go straight to WhatsApp, ready for Status or a broadcast list.

That keeps one poster, one caption and one time across every channel, and WhatsApp stays a personal, opted-in channel. If you are building the weekly plan from scratch, the 15-minute-a-week social media plan shows how to batch it in one sitting.

Frequently asked questions

Can a CA send WhatsApp broadcast messages to clients?

Yes, to existing clients who have agreed to receive messages and saved your number, about their compliance and general updates. Don't broadcast to people who are not clients. The ICAI Code of Ethics (2.14.1.6(iv)K) bars letters, emails or circulars to persons likely to require your services, and WhatsApp's policy requires opt-in.

Why are some clients not receiving my WhatsApp broadcast?

WhatsApp delivers a broadcast only to people who have saved your number in their phone's contacts. Ask the client to save the firm's number. In some countries, WhatsApp is also rolling out a monthly broadcast limit; check Settings > Broadcasts.

Should a CA firm create a WhatsApp group for all its clients?

No. Group members can see each other, so the group reveals who your clients are, which is confidential. Use broadcast lists for reminders and Status or a Channel for general updates. A group for one client's own team is fine.

Is a WhatsApp Channel allowed under the ICAI rules?

A Channel is followed voluntarily, much like a page, so it is closer to pull than push. It is still a write-up, so keep it educational: no fees, no testimonials, no claims like "best CA", and no comparisons with other firms.

Can OneClick Scheduler post to WhatsApp automatically?

No. WhatsApp doesn't allow apps to post to Status or broadcast lists. OneClick Scheduler sends you a reminder at the scheduled time, and you share the poster and caption to WhatsApp with one tap from your phone. Instagram, Facebook, LinkedIn and Google posts go out automatically.

Sources

Keep clients informed without typing 200 messages

Plan the week's due-date and tax-update posters once in OneClick Scheduler. They go out on your social pages and Google on schedule, and at the same time you get a WhatsApp reminder to share them to Status in one tap.