AI bookkeeping for LLC owners

The honest pitch

Most solo LLC owners hate bookkeeping. That's why $200/mo fractional bookkeepers exist: someone else logs in to your accounts, categorizes your charges, generates a monthly P&L, and hands you a year-end summary your CPA can file with.

That whole job, for a one-person LLC with one or two accounts, is mostly data categorization plus a couple of summary reports. It's exactly what an AI agent is good at, if the agent can see your bank data.

BankBridge gives the agent access. $5/mo per connected bank. Read-only, encrypted, no cache. The agent does the categorization, generates the reports, and you keep your $200/mo. Your CPA still files; she just gets clean data instead of a shoebox of receipts.

Who this works for

Sweet-spot users:

• Single-member LLCs. Taxed as sole proprietor, file Schedule C. The agent covers everything you need for monthly close and year-end prep.
• Freelancers and 1099 contractors. No LLC but still need to track business income and deductions.
• Side-hustlers. W-2 day job plus a side income stream you have to report.
• Indie founders pre-revenue. You're losing money but you want a clean record for the day you're not.

Not the right fit for: S-Corps with payroll, partnerships with K-1s, businesses with inventory, anything with multiple shareholders. Those need a real accountant and probably QuickBooks or Xero on top.

The monthly rhythm

First of the month, before you forget. Five-minute conversation:

“Categorize every charge on my business card and business checking from last month. Group as Schedule C lines: Advertising, Office Expense, Travel, Meals (50%), Professional Services, Software, Home Office, Other. Flag anything ambiguous.”

The agent calls list_transactions for the month, maps merchant + category to your Schedule C lines, and surfaces the ambiguous ones for you to decide. About 90% land in the right bucket automatically.

Then the P&L:

“What was my P&L for last month? Show me income, categorized expenses, and net.”

That's your monthly close. Save the chat or paste the output into a Google Doc. Five minutes total.

The quarterly rhythm

Before each quarterly estimate deadline (April 15, June 15, September 15, January 15), spend ten minutes with the agent:

“Project my full-year freelance income based on year-to-date trajectory. Apply a 28% effective rate. How much should I send for the next 1040-ES?”

The agent computes projected gross, applies the rate, subtracts what you've already remitted, and gives you a quarterly number. Send it via IRS Direct Pay before the deadline.

This single output is the highest-value thing the agent produces. Missing quarterly estimates triggers IRS underpayment penalties at filing time. Hitting them every quarter is the difference between a clean April and a stressful one.

Also useful quarterly:

• "Any large business expenses I should pre-pay tax on?"
• "Any recurring charges that look like personal hits to my business card?"
• "How does this quarter compare to the same quarter last year?"

The year-end rhythm

Late January, when 1099s are landing and your CPA is asking for "the numbers":

“Export Schedule C categories for tax year 2026 as a CSV. Columns: line item, total, source merchants. Also: my gross business income with a breakdown by payor.”

Email the CSV to your CPA. That used to be a half-day project of CSV exports, spreadsheet wrangling, and back-and-forth. Now it's the output of one conversation.

Also useful:

• "Year-over-year revenue: 2025 vs 2026."
• "Mileage estimate based on rideshare and gas charges."
• "Home-office percentage if 30% of my apartment is the office."
• "Any 1099 I haven't received yet but expected based on Stripe deposits?"

What it doesn't replace

Be honest with yourself about the scope:

• A CPA for filing. The agent prepares the inputs. A licensed tax preparer still files the return, signs it, and represents you if there's an audit.
• Tax strategy. Whether to make a Section 105 plan, whether to elect S-Corp status, retirement account contributions: those are CPA conversations.
• Receipt storage. The IRS wants receipts for expenses over $75, especially meals and travel. Photograph them and store in Drive or Dropbox.
• Sales tax. If you sell physical goods, the agent doesn't track multi-state sales tax. That's a QuickBooks or Avalara job.
• Payroll. If you pay yourself a salary or have employees, payroll is its own thing. Gusto or QBO Payroll.

What the agent covers is the data layer plus the basic categorization and reporting on top. That's 80% of what a monthly bookkeeper does for a solo LLC.