How to answer a client's categorization question

Published 6 October 2026. Updated 6 October 2026.

Why these emails are harder than they look

A client writes: "Why is the $1,240 payment to Harlan Supply in Office Expenses? That was materials for the Wexford job." It looks like a one-line fix. It rarely is. The honest answer depends on what the ledger shows, what the bank feed said at the time, what your firm's written procedures say about that kind of spend, and whether the period is still open.

Replying from memory is where the trouble starts. You remember "we put hardware store purchases in supplies", the client remembers something different, and the thread goes three emails deep. A reply built from the ledger line and your own written rule gives the client something concrete to check, and is much harder to argue with.

This guide gives a repeatable way to answer, in the order the work is best done. For a shorter version to run before you press send, see the client email reply checklist.

Step 1: Find the exact ledger line

Never answer about "that payment" until you have the transaction in front of you. Pull it up in QuickBooks Online or Xero and note:

• the date and the amount
• the payee as it appears in the ledger
• the account it was posted to
• the memo or description, and any attachment
• who or what created it: a bank feed rule, a manual entry, an import

If the client gave an amount only, search by amount and a date range. If more than one line matches, ask which one rather than choosing. A wrong line produces a confident, wrong reply.

Step 2: Work out why it sits where it does

Most transactions end up in a category for one of a few reasons:

1. A rule categorized it automatically and nobody looked again.
2. You or a colleague categorized it by hand, using the description.
3. The client coded it themselves in the app.
4. It came from an import and kept the source system's category.
5. It was a judgment call because the bank description was vague.

Your answer to the client is different for each. For the first two, say what the description showed. For the third, say it was coded in their own login. For the fifth, say plainly that you made a call on thin information and ask for the invoice.

Step 3: Check it against your written procedures

Open your procedures and find the sentence that covers this kind of spend. Typical examples are how you treat materials bought for a specific job, owner draws mixed into card spending, or items over a size you capitalize. Quote or closely paraphrase that sentence in the reply, and say which section it comes from.

If no sentence covers it, that is a finding, not a gap to paper over. Tell the client you are checking and will confirm, and add the rule to your procedures afterwards. What to put in a bookkeeping firm's written procedures covers how.

Step 4: Decide what you can say and what you cannot

Split the client's question into two parts.

Bookkeeping facts you can state. What the ledger shows, which account, which date, which rule or entry placed it there, what the procedures say, what you need to settle it.

Questions you should not answer in the reply. Whether something is deductible, how it affects the client's tax bill, what happens if a return is amended, anything about a notice from a tax authority or an audit. Those belong with the client's tax preparer, EA or CPA, or with you in a separate conversation where you are engaged to give that advice. Check your engagement letter for the line.

A good reply states the first part clearly and hands the second part off in one sentence.

Step 5: Write the reply

Keep a fixed shape so every reply is easy to check:

1. One-sentence answer to what was asked.
2. The ledger line: date, payee, amount, account.
3. The reason it sits there.
4. What you will do next, or what you need from the client, with a date if you have one.
5. A hand-off sentence if tax treatment came up.

Example:

Hi Dana, the $1,240.00 payment to Harlan Supply on 14 August is in Office Expenses. It came in through the bank feed with the description "HARLAN SUPPLY 0231", and our rule for that payee set the category. Our procedures (section 3) say materials for a specific job go to Job Materials when we have the invoice or a job name. Could you send the invoice, or tell us the job? Once we have it we will move the line and let you know the new total. For how this affects your return, please ask your tax preparer.

Notice what is missing: no promise about the tax result, no number that is not on the ledger line, no "should be fine".

Step 6: Read it back against the sources

Before sending, check every figure and date in the reply against the ledger line, and every rule against the procedures. Transposed digits and a wrong month are easy to miss in a reply written in a hurry.

How GroundedReply does this step

GroundedReply does the finding, citing and checking parts of this for one question at a time. You upload the client's email text, your written procedures and a QuickBooks or Xero ledger export. It drafts a reply that cites the ledger line and the procedure sentence behind each claim. Code checks each figure against the source it cites, and a second AI model then reviews the draft, fixes what it can and lists what is left for you to decide. Working out how a line got its category (step 2) is still yours.

If a figure cannot be traced to a source, the draft is held back and marked as needing a manual answer. Questions about amended returns, IRS or state notices, audits, penalties and legal matters, and any topic your procedures say to escalate, get a short holding reply instead of an answer. Every reply carries a notice that it is not tax advice and should be read before sending.

It does not connect to your inbox or ledger and it never sends anything. You download the text and send it yourself. A reply is 3 credits, with no subscription. You can sign up and try it on a real question.

Questions

Should I change the category if the client disagrees?

Not before you know why it was set. Find the original line and the reason first. If the client supplies a document that shows the original category was wrong, fix it and tell them what changed and from when.

What if the client's question is about a period that is already closed?

Say so in the reply and name the period. Whether a closed period can be reopened depends on your firm's procedures and on whether returns or reports were already filed, so check those before you promise a change.

How long should the reply be?

Short enough to read on a phone. Answer the question in the first two sentences, give the ledger line, say what you need from the client if anything, and stop.