From transactions to CPA review: four ways to keep the books
KiwiBooks keeps books tax-ready from the first entry, shows its work in a review queue, and lets Pro owners bring their own AI through MCP.
Bookkeeping software shouldn't pretend to be your accountant. It should hand your accountant books worth reviewing.
Most bookkeeping trouble doesn't start at tax time. It starts months earlier, when a transaction gets a vague category, a receipt never gets attached, or nobody can say why a number changed. By the time the books reach a CPA, the review turns into reconstruction.
So the useful question isn't how much software can do on its own. It's how the books stay reviewable from the first entry to the last. Our answer: organize for tax and for the accountant from the start, let automation show its work, and keep the judgment calls with people. KiwiBooks prepares your numbers; it doesn't file returns.
Two tiers, your choice of help
KiwiBooks comes in two tiers, Free and Pro. You can keep the books on your own, with experts (a CPA, Enrolled Agent or bookkeeper) working in your books on the platform, with your own AI assistant through MCP, or with an expert and your assistant together. Connect Claude Code, Codex or Grok as your assistant. Read/write MCP access is part of Pro, including the 7-day Pro trial.
Experts work with clients on Free and Pro, and you can invite as many advisors as you want. Firms use the Expert console free, with unlimited clients and no seat fees. A client on Free costs neither of you. For each client on Pro, the firm chooses who pays: the client, or the firm.
One path, four ways to walk it
Every set of books follows the same route: transactions in, categorized against tax lines, matched to documents, reviewed, exported. What changes is who does each step, and that choice matters more than any single feature.
1. Free: you do the work, the books stay tax-ready
Enter transactions by hand or import a statement as CSV, XLSX or PDF. Duplicates are detected on import. You choose categories, and KiwiBooks maps expenses to Schedule C lines. You match receipts and invoices yourself. Free includes 10 receipt and document scans a month, which KiwiBooks reads for you; after 10, you enter the details by hand or upgrade to Pro. Typed transactions and CSV imports don't count toward that limit.
The Tax Center tracks quarterly estimated taxes. At year end, export a workbook plus a ZIP of receipts for your accountant. Free covers 1 personal + 1 business.
The judgment is all yours, but every entry already points at a tax line. That's the habit that saves a review later: categorize for the return, not just for the bank statement.
2. Pro: from typing to checking
Pro adds automatic bank and credit card sync via Plaid and automatic categorization that learns from your edits, plus automatic receipt and invoice matching, with uncertain matches shown as suggestions. A setting decides whether categories from merchant history and keywords post automatically, or just your own rules do. Everything posted automatically lands in a review queue. Pro covers 1 personal + up to 9 businesses.
The work shifts from typing entries to checking them. Checking is where your attention belongs.
3. Expert mode: the professional works the books
A bookkeeper, CPA or EA works directly in a client's books. They clear the review queue, fix categories and matches, and run the same year-end export. For firms: you choose who pays for each client's Pro, the client or your firm.
For accountants, this means working in the books themselves instead of in a pile of exports and emailed questions.
4. Bring your own AI: your assistant, your key
The AI that acts on your books is yours, not ours. Bring your own AI: connect Claude Code, Codex or Grok to KiwiBooks through MCP. Read/write MCP access is part of Pro, including the 7-day Pro trial.
That matters because your assistant often isn't limited to KiwiBooks. KiwiBooks doesn't connect to your email or cloud storage itself. But if you've connected your AI client to those tools, it can pull receipts and documents from them into KiwiBooks, and save exports and backups to your own Drive as a copy for your records. What it can reach depends entirely on how you've set up your AI client and its connections, and data you move to other services is governed by their terms.
Inside KiwiBooks, the assistant can attach receipts and files, add transactions one at a time or in bulk, create the invoices you send to customers, categorize transactions, log trips, and export your data.
Generate an access key in Settings, add it to your client, and work in plain language: "recategorize last month's software charges," "find receipts missing for Q3." Depending on the client's permission settings, the assistant can ask before it acts. KiwiBooks has no separate approval step: MCP changes save to the books immediately. You control the access key and can revoke it anytime; you're responsible for changes your AI client makes.
Show the work: Suggest, Flag, Correct, Review
Whoever does the work, the same four steps keep it honest:
- Suggest. KiwiBooks suggests a category or a match from rules, merchant history and past edits.
- Flag. KiwiBooks flags items for your review.
- Correct. The owner, bookkeeper or assistant fixes or approves it. Corrections teach future suggestions.
- Review. An accountant should review the books before anything goes on a return.
The software prepares. The accountant decides.
KiwiBooks can finish the mechanical work: capturing transactions, suggesting categories and matches, organizing everything by tax line and packaging it for year end.
It doesn't make the calls that need a license or a professional opinion. Is this expense deductible, and how much? How is a mixed-use item treated? How do owner shares and entity questions flow to the return? Are the books ready to sign off? Those belong to the accountant, by design.
Contractors and assets
KiwiBooks also keeps track of the paperwork around the people you pay and the things you buy.
W-9 storage. On Free and Pro, you can upload a W-9 for a vendor or contractor and see every saved W-9 in one place. The 1099 tracker shows who still needs one. KiwiBooks doesn't send vendors a W-9 request, and each upload counts toward the monthly scan allowance.
1099 tracking. On Free and Pro, the 1099 Tracker flags vendors who may need a 1099-NEC, based on what you paid them in a calendar year for eligible services: contract labor, commissions, and legal or professional fees, on the tax lines KiwiBooks treats as 1099-NEC. Credit card payments are left out, because the card processor reports those on a 1099-K. KiwiBooks doesn't generate or file 1099s; you can export the tracker as a CSV for you or your accountant. Thresholds change; confirm with your accountant which vendors need a 1099.
Fixed assets. On Free and Pro, Fixed Assets is a register of your business assets with depreciation and expensing options: the de minimis safe harbor, Section 179, bonus, MACRS and Section 195 amortization. KiwiBooks can post depreciation to the books and record a disposal. Which treatment fits is your accountant's call.
Where this goes
Automation earns trust when it knows its limits. That is why Pro auto-links a receipt only when amount, date and payee agree, and shows the rest as suggestions for you to check. People still make the calls.
KiwiBooks does the mechanical work, flags items for review, learns from corrections, and hands the professional a documented set of books. The books are built for the return, reviewed by a person and worked on by the assistant you chose.
Plaid is a trademark of Plaid Inc. Claude and Claude Code are trademarks of Anthropic, PBC; Codex is a trademark of OpenAI; Grok is a trademark of xAI; not affiliated. Excel is a trademark of Microsoft.