A good bookkeeping handoff to a tax preparer is one folder: closed books for the full year, proof that every bank and card account ties to its statements, a short list of open questions, and a one-page notes sheet. The preparer should be able to read the notes in five minutes and start the return without calling you.
What belongs in a bookkeeping handoff package for the tax preparer?
The handoff package holds the year's reports, the evidence behind them, and your explanation of anything odd. Reports alone are not enough, because the preparer cannot tell from a profit and loss whether the numbers were checked. Evidence alone is not enough either, because nobody wants to rebuild your work from raw statements.
Think of the package in three layers. The top layer is what the preparer reads first. The middle layer is what they use to prepare the return. The bottom layer is what they open only if something looks wrong.
The handoff folder, file by file
The table lists a typical package. The file names are examples of a naming pattern, not a requirement.
| File | What it proves or answers | Example name |
|---|---|---|
| Notes sheet | What is unusual this year and what is still open | 00-notes-2025.pdf |
| Profit and loss, full year | Income and expenses by account | 01-pl-2025.pdf |
| Balance sheet at year end | Cash, card balances, loans, equity | 02-bs-2025-12-31.pdf |
| General ledger detail | Every posted line, for tracing | 03-gl-2025.xlsx |
| Reconciliation summary | Each account's book balance against the bank | 04-recs-2025.pdf |
| December statements | Closing balances the reconciliations rely on | 05-statements-dec/ |
| Contractor payment totals | Who was paid how much, for information returns | 06-contractors-2025.xlsx |
| Loan statements | Year-end principal and interest paid | 07-loans/ |
| Asset purchases | Equipment and vehicles bought or sold | 08-assets-2025.xlsx |
| Open questions | Items you could not resolve | 09-questions-2025.xlsx |
Number the files so they sort in reading order. A preparer who opens the folder sees the notes first and the raw statements last, which is the order they should use them.
What to leave out
Leave out drafts, earlier versions of reports and anything you no longer stand behind. Two profit and loss files with different totals will cost a phone call. If a report changed after you sent it, replace the file and say so on the notes sheet, with the date.
Contractor totals deserve their own care. The list should come from the payment lines in the books, grouped by payee, with card and processor payments marked separately. The guide to finding 1099 contractor payments in the books walks through building that list.
Balance proof for each account in the handoff
Balance proof shows the preparer that the cash and card numbers on the balance sheet match what the bank says. For each account, it needs the statement's closing balance at year end, the book balance on the same date, and any reconciling items between them. With that, the preparer can trust the books without redoing the reconciliation.
A reconciliation summary on one page does this job for most clients. One row per account is enough.
| Account (example) | Statement closing 12/31 | Book balance 12/31 | Difference | Explained by |
|---|---|---|---|---|
| Operating checking 2210 | 18,402.55 | 17,902.55 | 500.00 | Check 1184 written 12/29, cleared 1/4 |
| Payroll checking 2238 | 3,115.00 | 3,115.00 | 0.00 | Ties |
| Business card 7761 | 4,286.19 owed | 4,286.19 owed | 0.00 | Ties |
| Equipment loan | 22,640.00 owed | 22,640.00 owed | 0.00 | Ties to lender statement |
The values are illustrative. What matters is that every difference has a reason a stranger can check. An outstanding check should show its number and the date it cleared in January, if it has.
Proving the months, not only December
A year-end balance can tie by accident while two months in the middle cancel each other out. A stronger proof is that each monthly statement balanced: the opening balance plus that month's lines equals the closing balance. AutoBankConvert runs that check on every statement it converts and holds back any statement that fails, so a practice that converts statements through it can note that all twelve months passed rather than attaching twelve separate proofs.
Accounts the preparer may not know about
List every account that existed during the year, including ones the client closed. A savings account closed in May still earned interest. A card cancelled in August still carried charges. Name each one on the reconciliation summary with a zero closing balance and the date it closed.
Writing the handoff notes page a preparer reads first
The notes page is a single sheet that tells the preparer what changed this year and where to look. It should cover the client's situation, the method you used, anything unusual in the numbers, and the open questions by count. Keep it to one page. If it runs longer, the detail belongs in the files behind it.
A worked example of a notes page
Here is an example notes page for a fictional client. The names and figures are made up.
Client: Harbor Lane Design LLC, single-member LLC, calendar year 2025
Books: Cash basis. All 12 months reconciled for checking 2210, payroll checking 2238 and card 7761. Savings 2245 closed 5/14, final statement attached.
Changes this year: Hired the first employee in March, payroll through an outside provider. Bought a plotter in July for 6,850.00, see asset file. Moved office in October; deposit of 2,000.00 recorded as an asset, not rent.
Estimates: Four federal estimated payments found on checking, total 9,600.00, listed with dates in the questions file for you to match against your records.
Owner activity: Owner draws total 41,250.00. Two personal charges on the card (412.30) moved to draws.
Open questions: 3, listed in 09-questions-2025.xlsx. None above 1,500.00.
Contact: Questions to the bookkeeper by email; client prefers calls after 4 pm.
Notice what the example does. It states facts and points to files. It does not argue a tax position, such as whether the plotter should be expensed. That choice belongs to the preparer.
Estimated payments on the notes page
Estimated tax payments often sit in the books as a draw or a tax expense line, and the preparer needs the dates and amounts, not the account they were posted to. Listing them with dates saves a search. The post on tracking quarterly estimated taxes for clients covers how to record them through the year so the list is easy to pull.
Which open questions should stay in the tax preparer handoff?
Questions that only the client can answer, or only the preparer can decide, stay in the handoff. Questions you could answer yourself with another hour of work do not. Every remaining item should have an amount, a date, what you already know and who needs to answer it, so the preparer can sort them by size.
A questions file that sorts
Use one row per question with these columns:
- Date and amount of the line, taken from the statement.
- Account it appeared on.
- What you know, such as the payee text or a memo.
- Where it is posted now, often a suspense or uncategorized account.
- Who answers: client or preparer.
- Status: asked on a date, or not asked.
A deposit of 3,000.00 marked "transfer from" with no account name is a client question. Whether a vehicle bought in the owner's name belongs on the business books may be a preparer question. Marking which is which lets the preparer skip the ones waiting on the client.
Questions the client never answered
Some clients go quiet in January. When a question has been asked twice with no reply, put it in the file with both dates and move on. The preparer can decide whether to chase it or make a reasonable treatment. If silence from a client is a pattern, the guide to working with unresponsive bookkeeping clients has wording and deadlines that help before the next season.
Handoff timing against the preparer's own deadlines
The handoff should arrive early enough for the preparer to fit the return into their schedule, which means weeks before the filing date, not days. Ask the preparer each autumn when they want the package for each client. Many preparers set their own internal cutoff and file extensions for anything that arrives after it.
Information returns move the calendar forward for clients who pay contractors. The IRS instructions for Forms 1099-MISC and 1099-NEC set January 31 as the date to file Form 1099-NEC and give copies to recipients. If the preparer files those forms, they need your contractor totals in early January, well ahead of the rest of the package.
A timing plan for one client
An example plan for a calendar-year client whose preparer files their 1099s:
- First week of January: December statements in, accounts reconciled, contractor totals sent.
- Mid January: Questions sent to the client with a reply date.
- End of January: Remaining answers posted, reports run, notes page written.
- Early February: Full package delivered.
The dates are examples. The order is the point: anything with an earlier legal date goes first, and the main package follows once the books are closed.
When a tax preparer handoff should wait
A handoff should wait when the books are not closed: a missing statement, an account that does not reconcile, or a large uncategorized balance. Sending early in that state looks helpful but creates two versions of the truth. The preparer may start from numbers that will change, and every change after that is a correction they have to absorb.
Signs the package is not ready
- One or more accounts has fewer statements than months it was open.
- A reconciliation difference has no explanation.
- The uncategorized or suspense account holds more than a small, listed amount.
- Owner draws and contributions have not been separated from expenses.
- Loan payments are still posted as a single expense instead of principal and interest.
Partial handoffs that do work
Waiting does not mean silence. If the preparer needs something early, send that piece alone and label it clearly. Contractor totals in January are the common case. A note saying "final books to follow by February 10, these totals will not change" is useful. A full set of reports marked "draft" usually is not, because the preparer cannot tell which parts will move.
Keeping the evidence
IRS Publication 583 says supporting documents should show the amount paid and that it was for a business expense, and it lists account statements among the documents that qualify. Keep the statements and your reconciliation behind the handoff in the client's file after the return is filed. If the preparer or the IRS asks later, you can answer from the same folder.
A practice that handles many clients in the same few weeks benefits from converting and checking statements in batches rather than one at a time. AutoBankConvert converts each client's statements, checks every month's balance and exports files for QuickBooks or Xero, which leaves more of January for the notes and questions only a bookkeeper can write.