How to prepare documents for your accountant or CPA
Accountants bill for their time, and a lot of that time goes into sorting what clients send: a ZIP of phone photos, a forwarded email thread, a scan of twelve receipts in one PDF. The better your documents arrive, the faster your books close and the smaller the bill.
Here is what to send, how to organize it and how to hand it over, whether it’s your monthly bookkeeping or your annual return.
The checklist
Ask your accountant for their list, but this covers what most bookkeepers and CPAs need from a small business:
| Every month | Once a year, for the return |
|---|---|
| Bank and credit card statements for every business account | Forms 1099 you received, and the 1099s you issued |
| Sales invoices you sent | Payroll year-end reports and W-2s |
| Supplier invoices and bills | Loan statements showing interest paid |
| Receipts for card and cash purchases | Invoices for equipment, vehicles and other assets bought or sold |
| Payroll reports | Sales tax returns for the year |
| Letters from tax agencies | Last year’s return, if they didn’t prepare it |
Statements are what the books are checked against, so send every page of every account, including the months with no activity.
Organize before you send
Three habits save your accountant most of the sorting:
- One document per file. A scan of five receipts is five documents; split it.
- Folders by type and month: Receipts / 2026 / 03 March, Purchase invoices / 2026 / 03 March, Bank statements, Sales invoices.
- File names that say what is inside: 2026-03-21 Klein Auto - Invoice GK-7781 - 778.05 USD.pdf, not scan_0007.pdf.
Then add a list: one line per document with its date, company, type and amount. With it, your accountant can match documents to statement lines without opening every file, and you can see at a glance what’s missing.
| Date | From / to | Type | Reference | Amount |
|---|---|---|---|---|
| 2026-03-12 | Northside Coffee | Receipt | 4.70 | |
| 2026-03-14 | Summit Print Co. | Purchase invoice | SP-2026-0412 | 346.32 |
| 2026-03-20 | Oakridge Dental Group | Sales invoice | NS-1043 | 3,978.00 |
| 2026-03-31 | Liberty Harbor Bank | Bank statement | March 2026 |
What to leave out
- Duplicates: the same invoice from the email and the supplier portal. Send one.
- Personal receipts, unless your accountant asked for them.
- Logos, contracts and marketing files that ended up in the same folder.
- Blank and unreadable pages. Rescan them instead.
How to hand it over
Use whatever your accountant prefers: their client portal, a shared drive or a ZIP by email. What matters is that it arrives once, complete, in the same structure every month.
- Send the month as one package, not as documents trickle in.
- Say what’s missing up front (“Amazon invoices for March still to come”) so nobody has to ask.
- Add a short note for anything unusual: a refund, a personal expense on the business card, a new loan.
- Keep your own copy of exactly what you sent.
Answer the questions before they’re asked
Most back-and-forth with a bookkeeper is about the same handful of things. A one-line note for each saves an email thread:
| On the statement | What your accountant needs to know |
|---|---|
| A purchase with no receipt | What it was and why it was for the business, or that it was personal |
| A personal expense on the business card | That it was personal, so it’s booked as a draw, not an expense |
| Money moved between your accounts | Which accounts, so the transfer isn’t counted as income |
| A refund or a chargeback | Which original purchase or sale it reverses |
| A large equipment or vehicle purchase | The invoice and whether it was financed, since it may be depreciated rather than expensed |
| Cash sales or cash expenses | Receipts or a simple log with date, amount and what it was for |
If you drive for work, send the mileage log as well. Without one, the car expenses are hard to claim.
A 15-minute month-end routine
- Download every business bank and card statement for the month as PDF.
- Collect the month’s receipts and invoices from your phone, email, supplier portals and the paper tray into one folder.
- Sort and rename them into the folders above, or drop the folder into an organizer that does it.
- Tick the list of documents off against the statements and note anything missing or unusual.
- Send the package and the note, and put a reminder in your calendar for the same day next month.
Done monthly, this takes minutes. Left to the end of the year, the same work is twelve times larger, and the receipts you need first are the ones that have faded or disappeared.
Month-end versus tax season
If you send documents monthly, tax season is mostly the annual forms in the right column above. If you send everything once a year, start in January: twelve months of receipts take far longer to match than one, and the missing ones are harder to get back.
Either way, the folder structure and file names above make your accountant’s job a check rather than a dig, and that is usually reflected in the bill.
Questions
What documents does a CPA need for a small business tax return?
Your bookkeeping or profit and loss for the year, every business bank and card statement, Forms 1099 received and issued, payroll reports and W-2s, invoices for assets bought or sold, loan interest statements, sales tax returns and last year’s return.
How should I send documents to my bookkeeper?
Once a month, as one package in the format they prefer, one document per file, in folders by type and month, with a list of what’s inside and a note of anything missing.
How often should I send documents to my bookkeeper?
Monthly works best for most small businesses: the books stay current, problems surface while they can still be fixed, and tax season is short. Some businesses with few transactions send quarterly.
Should I send photos or scans of receipts?
Either, as long as the whole receipt is readable. Make sure each receipt is its own file, and that the date, seller and total are visible.