AI prompts for bookkeeping client onboarding questionnaires
Most onboarding questionnaires collect paperwork and miss the habits that cause month-end pain. These five prompts surface the mess before you quote.
Bookkeeping client onboarding usually starts with a document request: last year’s accounts, bank statements, VAT certificate, payroll details. All necessary, none of it revealing. The things that determine whether this client is profitable to serve are habits, not documents.
Whether the director pays for personal things on the business card, whether receipts arrive as photographs in a group chat, whether anyone reconciles the stock — none of that appears in a document request, and all of it appears in your write-off at year end. These five prompts fix client onboarding: a core questionnaire, a variant for a messy incoming client, a variant for a company switching from another bookkeeper, a review prompt that finds unpriced risk, and a batch prompt for a run of new clients.
Why does bookkeeping client onboarding go wrong?
Because the questionnaire is built around what you need to file rather than around what you need to know. A filing-shaped questionnaire tells you the client is VAT registered on a quarterly stagger. It does not tell you that the VAT return has been wrong for two years, which is the thing that will consume your first fortnight.
The second failure is asking questions in the client’s terms rather than in observable terms. “Do you keep good records?” gets a yes from everybody. “Show me how you recorded the last three purchases you made” gets you the truth in about ninety seconds.
Third, most client onboarding does not ask what the client actually wants. A business owner who wants to stop worrying about HMRC needs a different service from one who wants management accounts to raise investment, and quoting the same package to both loses one of them.
What should a client onboarding questionnaire find out?
Four things beyond the compliance basics. The state of the records, measured by asking for an example rather than for an opinion. The volume, in transactions per month, because that is what your time actually scales with. The mess — personal expenditure, cash, missing periods, unreconciled accounts, unfiled returns.
And the people: who raises invoices, who chases them, who approves spending, and who will actually reply to you when you have a question. A client whose only responsive person is a director who travels is a slow client regardless of how tidy the books are.
Get those four and you can price accurately. Miss them and you have quoted a monthly fee against an unknown.
The core prompt for client onboarding questionnaires
Click any highlighted blank to fill it in before you copy.
You are writing a client onboarding questionnaire for a UK
bookkeeping practice. The questionnaire must reveal how the
business actually operates, not just what it is registered for.
Practice: {{what we do, what we do not}}
Client type: {{sole trader / partnership / limited company}}
Sector: {{sector, and any sector quirks — cash, stock, CIS,
tips, foreign currency, subscriptions}}
Services being quoted: {{list}}
Software we use: {{list}}
What has caused us write-offs before: {{list your own history}}
Deal breakers: {{what would make us decline}}
Produce the questionnaire in sections.The question rules
Sections and rules:
1. THE BUSINESS — structure, year end, VAT status and stagger,
PAYE, CIS, any registrations. Factual, short.
2. VOLUME — transactions per month, bank accounts, cards,
payment platforms, invoices raised and received per month,
employees, subcontractors. Every answer must be a number.
3. HOW IT ACTUALLY WORKS — questions phrased so the answer is
an observable example rather than a self-assessment:
- "Describe how the last purchase you made got recorded,
from payment to record."
- "Where is the receipt for that purchase right now?"
- "Who raised the last sales invoice, and in what?"
Never ask whether records are good, organised or up to date.
4. THE MESS — asked without judgement, because the answers are
what you are pricing:
- personal spending on business accounts
- cash taken or paid
- periods with no records
- accounts never reconciled
- returns filed late or not filed
- anything currently in dispute with HMRC
Preface this section with one line saying you have seen all
of it before and none of it is a problem to disclose.
5. THE PEOPLE — who does each task, who approves spending,
who replies to queries, and their typical response time.
6. WHAT THEY WANT — what would make this worth paying for,
in their words. One open question, asked properly.
Rules:
- Every question in section 2 must have a numeric answer.
- No question may be answerable with an unfalsifiable yes.
- Maximum 30 questions total. Anything else can wait.
- Mark each question as either PRICING (affects the quote) or
SETUP (needed later). Never ask a SETUP question before the
client has signed.
- Flag any answer that would trigger a deal breaker.A worked example: the difference a question makes
Two versions of the same enquiry. The conventional question:
Q: How do you currently keep your records?
A: We use Xero and it’s all pretty much up to date.
And the observable version this prompt produces:
Q: Describe how the last purchase you made got recorded, from payment to record. Where is that receipt now?
A: I paid for it on my personal card at the wholesaler, sent a photo of the receipt to my wife on WhatsApp, and she puts them into Xero at the weekend. Sometimes a couple of weeks.
Same client, same software, and the second answer changes the quote. There is a personal card in the purchase ledger, a director’s loan account nobody is tracking, a two-week lag, and a second person in the workflow who has not been mentioned as a contact. None of that surfaced from “how do you keep your records”.
The prompt for a messy incoming client
Click any highlighted blank to fill it in before you copy.
You are producing a diagnostic questionnaire for a prospective
client whose records are known or suspected to be in poor
condition. The goal is to scope catch-up work accurately enough
to quote it.
What we know so far: {{what prompted the enquiry}}
Periods potentially affected: {{dates}}
Software or lack of it: {{detail}}
Filing position: {{what is filed, what is late, what is
estimated}}
Any HMRC correspondence: {{detail}}
Produce questions that establish, in this order:
1. The last date everything was definitely correct. This is the
single most important number in the quote.
2. What has been filed since then, and whether those filings
were based on real figures or estimates.
3. What records physically exist for the affected period, by
type and by month. Ask them to check rather than recall.
4. What is missing and whether it is recoverable — bank
statements can be re-requested, lost receipts often cannot.
5. Whether any disclosure to HMRC will be needed.
6. Who will be available to answer questions during the
catch-up, and how quickly.
Rules:
- Ask for a check, not a memory. "Open your bank feed and tell
me the earliest unreconciled date" beats "when did it last
balance".
- Quantify everything in months and in transaction counts.
- Do not offer reassurance about penalties or disclosure
outcomes. Note where professional advice is needed.
- End with an explicit list of what you cannot price until
seen, so the quote can be staged rather than guessed.The prompt for a client switching bookkeeper
Click any highlighted blank to fill it in before you copy.
You are onboarding a client moving from another bookkeeper or
accountant. This has specific risks that a new-business
onboarding does not.
Outgoing firm: {{name if known}}
Reason for leaving, in the client's words: {{paste}}
Services the outgoing firm provided: {{list}}
What the client thinks is up to date: {{their belief}}
Produce questions covering:
1. Handover mechanics — what the outgoing firm holds, in what
format, and whether professional clearance has been
requested.
2. Access — who owns the software subscription, who is the
registered agent with HMRC, and whether logins will
transfer or need rebuilding.
3. The gap — what will not be done by either firm during the
transition, and when.
4. Verification — what the client believes is filed and up to
date, phrased so the answers can be checked against HMRC
records rather than taken on trust.
5. The real reason for the move, asked once, neutrally.
6. Expectations the previous relationship set: response times,
what was included, what they were charged.
Rules:
- Never invite criticism of the outgoing firm. Ask factual
questions and let the answers be what they are.
- Flag every point where the client's belief about their
filing position should be verified independently before you
rely on it.
- Include the question people forget: what does the client
think they are paying for that we have not quoted for.The review prompt: finding unpriced risk
Click any highlighted blank to fill it in before you copy.
Below are completed client onboarding answers and the fee we
propose to quote. Find the risk that is not in the price.
Output:
1. VOLUME MISMATCH — where stated transaction volumes are
inconsistent with the described business, or where a volume
question was answered vaguely rather than numerically.
2. HIDDEN WORK — anything in the answers implying work not in
the quoted scope: personal expenditure to separate, cash to
reconstruct, foreign currency, stock, CIS, tips,
subscriptions billed to individuals.
3. RESPONSIVENESS RISK — where the answers suggest queries
will be slow, and what that does to a fixed fee.
4. CATCH-UP EXPOSURE — anything suggesting prior periods are
wrong and will surface as our problem.
5. SCOPE AMBIGUITY — anything the client plainly expects that
the quote does not say is included.
6. DECLINE SIGNALS — anything matching a stated deal breaker.
For each finding: quote the answer, state the likely extra
hours per month, and say whether it should be priced, scoped
out in writing, or declined.
ANSWERS: {{paste}}
QUOTE AND SCOPE: {{paste}}Point five is where most fixed-fee bookkeeping loses money. A client who mentions in passing that their last bookkeeper “did the invoicing” has told you what they expect, and if the engagement letter does not address it, you will do it for nothing.
Client onboarding for a batch of new clients
Click any highlighted blank to fill it in before you copy.
You are onboarding {{n}} new clients acquired together
(a block purchase, a referral run, or a departing bookkeeper's
list).
Practice constants: {{software, services, deal breakers}}
Clients: {{table — name, structure, sector, VAT, payroll,
volumes, known issues}}
For each client, produce the tailored questionnaire.
Rules for the batch:
- Sector-specific questions must follow the sector in that row
only. Never carry a CIS or stock question to a client
without them.
- Output a triage table: client | estimated monthly hours |
catch-up risk high/medium/low | deal-breaker flags |
recommended action.
- Sequence the onboarding: list which clients must be dealt
with first based on filing deadlines in the next 90 days.
- Flag any client whose answers cannot support a fixed fee,
and recommend time-and-materials for the first quarter.Common mistakes with client onboarding
Asking self-assessment questions. Every business owner believes their records are reasonably tidy, because they are comparing against their own memory rather than against a trial balance. Ask for an example and you get the truth without anyone having to admit anything.
Putting the mess section at the end. By then the client is tired and answers briefly. It belongs in the middle, after the factual warm-up and before their attention goes, with the line about having seen it all before.
Quoting before the questionnaire is complete. A fixed fee against unknown volumes is a bet, and it is one you lose asymmetrically: tidy clients do not become more profitable than expected, but messy ones become much less.
Skipping the responsiveness questions. A perfectly organised client who takes three weeks to answer a query costs more than a chaotic one who replies the same day, and nothing in a document request reveals it.
What to check before client onboarding closes
Verify the client’s stated filing position against HMRC records rather than against their belief. People are sincere and wrong about this constantly, and the discrepancy becomes yours the moment you are appointed.
Confirm every volume figure is a number, not an adjective. “Not many invoices” is not a quantity, and it is the field that most often turns out to mean two hundred.
Check the engagement letter names everything the answers revealed the client expects, including anything they mentioned casually. The ICAEW practice guidance is clear that scope disputes almost always trace to something said in onboarding and never written down.
Finally, complete anti-money-laundering identification and verification before doing any work, not after. It is the one part of client onboarding with a statutory deadline attached, and doing it late is a supervisory problem rather than an administrative one.
Frequently asked
Questions this article answers
Why does bookkeeping client onboarding go wrong?
Because the questionnaire is built around what you need to file rather than around what you need to know. A filing-shaped questionnaire tells you the client is VAT registered on a quarterly stagger. It does not tell you that the VAT return has been wrong for two years, which is the thing that will consume your first fortnight. The second failure is asking questions in the client's terms rather than…
What should a client onboarding questionnaire find out?
Four things beyond the compliance basics. The state of the records, measured by asking for an example rather than for an opinion. The volume, in transactions per month, because that is what your time actually scales with. The mess — personal expenditure, cash, missing periods, unreconciled accounts, unfiled returns. And the people: who raises invoices, who chases them, who approves spending, and who will actually reply to you when you…
What to check before client onboarding closes?
Verify the client's stated filing position against HMRC records rather than against their belief. People are sincere and wrong about this constantly, and the discrepancy becomes yours the moment you are appointed. Confirm every volume figure is a number, not an adjective. "Not many invoices" is not a quantity, and it is the field that most often turns out to mean two hundred. Check the engagement letter names everything the…