Viveka I am not a CPA or a financial professional. This is one business owner’s account of what she did with her own books, not tax or financial advice. Run anything you try through your own CPA before you act on it.
What happened when I ran my books through Claude before my CPA did?
Short version: I’m pretty sure QuickBooks wouldn’t have looked for those deductions for me, and instead of writing a bigger check in a few weeks, I might be getting money back. That’s what happened when I sat down with my own real numbers, my own real mess of half-labeled transactions, and asked Claude Cowork to go through it with me before my CPA ever saw the return.
I want to say the caveats out loud before anything else, because they matter more than the story: I am not an accountant, I am not telling you to do this, and I am not promising it’s even safe. What follows is what I did, not a recommendation for what you should do without your own CPA in the loop.
What did I actually give Claude access to?
First I gave Claude access to the folder on my computer that houses all my tax prep documents. Then I gave it access to my accounting software through a connector. Then — and this is the part I’d tell any of you to copy — I asked it what else it needed instead of guessing myself.
It said Stripe, which it accessed through a connector (doh, obviously, in hindsight). And then it walked me through downloading and sharing, in a dedicated subfolder, everything else it needed to see the whole picture: my Amazon orders, my bank account statements, PayPal, Venmo, the Trello board where my VA tracks her invoices and hours, credit card statements, and a few other odds and ends. My accounting software already had access to a lot of that data on its own. What it didn’t have was the context to know I’d mislabeled more than one thing.
What did Claude find that my accounting software didn’t?
It found some rather important payments I had missed entirely. It found a few deposits that I’d been counting as income that, once we looked closer, weren’t income at all. It found uncompensated hours sitting in my VA’s Trello tracking that I hadn’t paid out. And it found a long list of smaller things — the kind of thing that’s easy to miss one at a time and easy to underestimate in total — that all added up to about $6,000 in deductions, which was just enough to move me into a different tax bracket.
My accounting software reports what I tell it, and I’d told it the wrong thing more than once, so what Claude did for me here was notice where the numbers and the reality didn’t match.
Is it safe to hand an AI tool your bank accounts and tax documents?
I don’t know, honestly, is the real answer, and I’m not going to pretend otherwise just because it worked out well for me this time. What I did was give it access to a dedicated subfolder rather than a blanket run of everything I own, and I treated everything it told me as a lead to hand my CPA, not as a finished answer. That’s a personal choice, not a security endorsement, and it’s worth a real conversation with your own CPA or a qualified professional before you decide whether it’s right for your accounts.
How else could you use AI for your books, taxes, and budgeting?
Same disclaimer, said again because it matters here more than anywhere else in this piece: I am not a CPA or a financial professional, and none of what follows is tax or accounting advice. Run every one of these through your own CPA before you act on anything an AI tool tells you about your money.
With that said, here’s where I’d point a curious business owner to start. Categorizing transactions that have been sitting in your books as “uncategorized” for months, so nothing slips through at year end. Reconciling your connected accounts against your actual books to catch anything double-counted or missing. Spotting deposits that look like income but aren’t — a loan, a reimbursement, a transfer between your own accounts — before they inflate what you think you made. Tracking down unpaid invoices or uncompensated hours sitting in a project tool like Trello or Asana instead of an actual invoice. Building a rolling picture of cash flow from your bank and payment-processor data instead of a spreadsheet you meant to update and didn’t. Organizing receipts and statements into the folder structure your CPA actually wants at tax time, instead of a shoebox (digital or otherwise). And flagging spending categories that crept up over the year — software subscriptions are the usual suspect — before they show up as a surprise in December.
Every one of those is a starting point for a conversation with your CPA, not a substitute for one. Bring them what the tool flags. Let them tell you what’s real.
Should you skip your CPA and use Claude instead?
No. I used it as a second set of eyes before my CPA ever saw the return, not as a replacement for the person whose job it is to sign off on it. Everything Claude flagged, I still had to verify was real, was categorized correctly, and was something I could actually claim — and that verification is exactly what I pay my CPA for. If you try any version of this, the goal is walking into that appointment with fewer surprises, not skipping the appointment.
When is the best time to try this?
Before year-end. I did all of this on extension, months after the year had closed, and it still paid off, but the stretch before December 31 is a better time to try it, because anything Claude turns up can still be sorted out with your CPA while the year is open. Gather this year’s bank statements, credit card statements, payment-processor records, and whatever your accounting software already has into one folder, give Claude Cowork access to that folder, ask it what else it needs, and see what it flags. Then take that list (the whole list, not just the parts that feel good) to your CPA. I know a lot of you are already using Claude for content and LinkedIn (here’s the piece on which mode to use for which job); this is the same tool pointed at a very different pile.
If you want more of what this actually looks like in practice — using Claude for the operational side of your business, not just the content side — that’s a lot of what we work through together in the systems I build with clients, and it’s a regular topic inside my free WTIC community.