How VarStan Uses AI (and What We Never Let It Touch)

Every few weeks a client asks some version of the same question: “Do you use AI?” The honest answer is yes — deliberately, in specific places, under rules we wrote down. The more useful answer is where we use it and, just as important, where we refuse to. If you’re trusting a firm with your books and your tax return, you deserve to know both.

Here is how VarStan draws the line.

Where AI Earns Its Keep

AI is very good at the parts of accounting that are repetitive, pattern-based, and low-stakes when a human reviews the result. That describes a surprising amount of monthly bookkeeping.

First-pass categorization. Bank-feed rules and machine suggestions in QuickBooks and Xero propose how to code routine transactions — the same vendor, the same amount, the same account every month. A person still reviews the suggestions, but the review is faster than keying everything by hand, which is why flat-fee bookkeeping is possible at all.

Summaries and drafts. A 40-page loan agreement, a stack of vendor contracts, a long IRS notice: AI can produce a clean first summary and flag the clauses worth reading closely. It can draft the plain-English email that explains a reconciliation question to a client. A CPA edits and sends it; the draft just saves the blank-page time.

Internal automation. Pulling a timesheet report, building a recurring workbook, formatting a monthly package, generating a reminder list of missing W-9s. These are scripts and workflows, not judgment, and automating them means our people spend their hours on the work that actually requires a license.

Research orientation. When a question is unfamiliar, AI is a fast way to get oriented: which Code section, which form, which publication. That is the start of research, never the end. More on that below.

What We Never Let It Touch

Four lines we don’t cross, and the reason behind each one.

1. Your data never goes into a consumer chatbot. Federal law (Internal Revenue Code Section 7216) makes it a crime for a tax return preparer to knowingly or recklessly disclose or use your tax return information for an unauthorized purpose, with a separate civil penalty per disclosure on top. The FTC Safeguards Rule treats tax and accounting firms of any size as financial institutions and requires a written information security plan. Pasting a client’s P&L or return into a free public AI tool, whose terms may allow the provider to retain and train on what you type, is exactly the kind of disclosure those rules exist to prevent. We use tools under business agreements that keep client data out of training, and we strip identifying details before any general-purpose tool sees a question.

2. No number reaches a return or a financial statement without a CPA verifying it against a primary source. AI models produce confident, fluent, occasionally invented answers — including citations to tax cases and Code sections that do not exist. A limit, a threshold, a phase-out, a filing deadline: each one gets checked against the IRS, the statute, or the state’s own guidance before it touches your work. If we can’t trace a figure to a source we can show you, we don’t use it.

3. AI never signs, files, or represents you. A paid preparer signs your return under penalties of perjury. That signature belongs to a licensed person who is accountable to you, to the state board, and to the IRS. The same goes for an audit, an appeal, or a payment negotiation: a CPA stands in front of the IRS for you. Software doesn’t have representation rights, and it can’t take responsibility.

4. The judgment calls stay human. Whether to elect S corporation status, what reasonable compensation looks like for your situation, whether to accelerate a purchase into this year, how to structure a sale of the business. These depend on facts a model can’t know and trade-offs it can’t weigh. We’ll use AI to lay out options; a CPA who knows your business makes the recommendation and owns it.

The Rule in One Sentence

AI drafts. A CPA decides. Every piece of AI-assisted work at VarStan follows that order. The tool proposes; a licensed person reviews, verifies, and signs. If an output can’t survive that review, it doesn’t ship. Nothing about this is exotic — it is the same review standard a good firm has always applied to a junior staff member’s work. The staff member just got a lot faster.

Why This Is Good for You, Not Just for Us

The payoff shows up in two places. First, the routine layer of bookkeeping costs less to deliver, which is what makes a predictable monthly fee realistic for a small business. Second, the hours we don’t spend keying transactions go into the work that actually moves your numbers: catching the owner draws that are running ahead of profit, spotting the contractor who should have received a 1099, noticing that your estimated payments are off before the penalty arrives. Fewer keystrokes, more judgment.

There is a quieter benefit, too. A firm that has thought carefully about where AI belongs is also a firm that has thought carefully about data security, review procedures, and who is accountable for what. Those habits protect you whether or not a model is involved.

Three Questions to Ask Any Accountant About AI

Whether you work with us or someone else, these three questions will tell you most of what you need to know.

“Which tools do you use, and what happens to my data inside them?” The right answer names the tools, explains the data terms, and references a written security plan. A vague answer, or “we just use ChatGPT,” is a red flag.

“Who verifies the numbers, and against what?” You want to hear that a licensed person checks every figure against a primary source before it reaches your return.

“Who signs my return and who represents me if the IRS asks questions?” The answer should be a named CPA, enrolled agent, or attorney — the credentials the IRS grants unlimited representation rights to.

How VarStan Helps

VarStan is a CPA-led firm, and that is the whole point of the line we draw. We use AI to make the routine parts of your bookkeeping faster and your monthly fee predictable, and we keep licensed judgment on everything that carries your name. If you’d like to see how that works on your own books — or you’d simply like to ask us the three questions above in person — we’re glad to walk through it.