WhatsApp keyword triggers let accounting firms answer common client questions instantly — HMRC deadlines, VAT queries, document requests — without
Accounting firms receive a predictable set of client queries that repeat throughout the year: what are the HMRC deadlines for self-assessment, when is my VAT return due, how do I send you my bank statements, where do I find my payslips, what's the current capital gains tax threshold. These questions have standard answers — the same response works for every client asking.
A keyword trigger automates the immediate response: when a client messages a specific word or phrase, they receive an instant reply with the relevant information. No accountant needs to type the same HMRC deadline explanation for the fifteenth time this January. The trigger handles it; the accountant's time is freed for the complex and the billable.
The value compounds during peak deadline periods. In January, a busy self-assessment practice may receive 50–100 client queries in a single week — many of them asking the same question about the 31 January deadline or what to do if they haven't gathered all their documents. A keyword trigger system handles all identical queries simultaneously, regardless of when they arrive. A client who messages at 11pm gets an instant response; the accountant sees the message in the morning.
Keyword triggers don't replace accountant judgement. They handle the factual, predictable, and recurring. Complex queries, unusual situations, and anything requiring professional advice route to a human via the fallback message.
DEADLINE / DEADLINES / DUE DATE.
Most queried in October–January. Auto-reply: 'UK tax deadlines summary: Self-assessment online filing — 31 January. Paper return — 31 October. Capital gains report — 60 days after sale (residential) / 31 January (other). VAT — 1 month + 7 days after period end. Payroll RTI — on or before payday. For your specific deadlines, please reply MYDEADLINES and we'll send your personalised schedule.'
VAT / VAT RETURN.
For limited company and VAT-registered clients. Auto-reply: 'Your VAT is due 1 month and 7 days after the end of your VAT period. If you're on monthly returns, your due dates are the 7th of each month. Please reply with your VAT period end date and we'll confirm your exact submission deadline. To send us your VAT figures, reply DOCUMENTS.'
DOCUMENTS / SEND DOCUMENTS / UPLOAD.
For clients asking how to submit bank statements, receipts, or payroll data. Auto-reply: 'You can send us your documents via: [practice portal link], by email to [email], or directly in this WhatsApp chat (PDFs and images work fine). Please label files clearly with the tax year or period. Reply DEADLINE if you need to check your submission cut-off.'
PAYSLIP / PAYSLIPS / P60 / P45.
For payroll clients. Auto-reply: 'Payslips are available via [payroll portal link]. Your P60 for [year] is [available/will be available by 31 May]. For P45 requests (leaving employment), please reply P45 with your employee's name and leaving date and we'll process this for you.'
INVOICE / BILL / PAYMENT.
For clients asking about their practice invoice or payment. Auto-reply: 'Our invoices are sent monthly by email. If you haven't received your latest invoice, please reply with your company name and we'll resend it. Payment: bank transfer to [sort code/account] or via [link]. Any queries about your account, reply ACCOUNT and a team member will follow up.'
SA / SELF ASSESSMENT.
For clients asking specifically about their self-assessment. Auto-reply: 'Self-assessment deadline: 31 January for online filing (previous 5 April tax year). To get started, we need: P60(s), dividend vouchers (if applicable), rental income details, and any other income sources. Please reply DOCUMENTS with your details and we'll confirm what we need from you specifically.'
Platform selection. Keyword triggers require WhatsApp Business API access — available through WATI ($29/month), Freshchat ($19/agent/month), or Respond.io ($79/month). WATI is the most commonly used platform for small accounting practices because of its simplicity and flat pricing regardless of team size up to the base agent limit.
Mapping your most common queries. Before setting up triggers, review the last three months of client WhatsApp messages (or emails, if WhatsApp isn't used yet) and identify the five to eight questions that recur most frequently. These become your trigger keywords. For most accounting practices: deadline queries, document submission, payroll, VAT returns, and invoicing cover the majority of recurring questions.
Writing the auto-reply. Each trigger reply should: answer the question fully with the standard information, end with a next-step instruction ('reply X for more details' or 'call [number] for anything complex'), and sound like a practice team member rather than a robot. Avoid 'KEYWORD TRIGGERED RESPONSE' energy — use 'For your VAT return dates:' rather than 'VAT QUERY DETECTED.'
The fallback message. Any message that doesn't match a keyword receives a fallback: 'Hi, thanks for your message! One of our team will get back to you shortly. If your query is about deadlines, reply DEADLINE. For document submission, reply DOCUMENTS. For VAT queries, reply VAT. For urgent matters, call [number].' The fallback ensures no message goes completely unacknowledged.
Peak season preparation. In the weeks approaching 31 January, update your DEADLINE trigger to be more specific and add urgency-aware responses: 'The self-assessment deadline is [X days] away. If you haven't yet sent us your documents, reply DOCUMENTS immediately so we can prioritise your return.' Adjust the trigger content to reflect the current date context.
Keyword triggers handle factual, standardised questions. They cannot handle professional advice, client-specific circumstances, or anything requiring accountant judgement.
A client who messages 'do I need to declare income from my Airbnb?' is not asking for a deadline — they're asking a tax planning question that has a specific answer depending on their income level, whether they use the rent-a-room scheme, their other income sources, and their self-assessment status. A keyword trigger cannot answer this. It can acknowledge it: 'This is a great question that depends on your specific circumstances — one of our accountants will follow up with you today to discuss. For reference, Airbnb income is generally taxable in the UK as either rental income or trading income depending on [brief factual note]. For your specific position, reply CALLBACK and we'll call you back.'
The trigger's role is to buy time, provide immediate acknowledgement, and route to the right person. An accounting practice that uses keyword triggers to handle everything risks giving standardised advice to clients with non-standard situations — a risk that no accountant wants.
The discipline: triggers handle factual standard information; professional advice always comes from an accountant.
Data + numbers referenced in this article are sourced from these public documents:
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