Sell AI to Accountants: The $34M Idea Behind Basis, and What You Can Copy for Under $50K

Basis, a New York startup that sells AI agents only to accounting firms, raised a $34 million Series A led by Khosla Ventures in December 2024. On 24 February 2026 it followed with a $100 million Series B at a $1.15 billion valuation. You cannot copy that product with $5,000 to $50,000, but you can copy the idea: pick accountants as your customer and sell them time back.

What is the idea behind Basis?

Basis builds AI agents that do the first pass of accounting work, and it sells them only to accounting firms, not to the end clients. Maginative reports that the agents enter transactions, validate data and report results, and that the software integrates with QuickBooks and Xero. CEO Matt Harpe describes the agents as "juniors on the team."

The company's own site lists solution lines for client advisory, tax, audit, small firms and corporate accounting. Output is staged for a human to review, so the accountant stays responsible for the work. The company says it has 350+ pre-built accounting procedures, which is a vendor claim.

The core insight is who pays. A firm buys software that makes its staff produce more, and it can bill the saved hours to clients.

Why would accounting firms pay for AI now?

Firms face a shrinking supply of junior staff. Maginative cites a 33% drop in CPA candidates between 2016 and 2021, and audit platform Fieldguide cites a 17-year low in CPA exam candidates in its funding announcement. Both are company or press framings, not a single audited count.

Demand for accountants is not falling. The Bureau of Labor Statistics (BLS) projects 5% growth for accountants and auditors from 2025 to 2035, with a median pay of $83,680 as of May 2025. It says automation is not expected to reduce overall demand. More work and fewer juniors is the gap software fills.

How much can you make selling AI to accountants?

The $34M is investor money, not revenue, and it says nothing about what you can earn. The honest test is a service business: you set up and train small CPA and bookkeeping firms on AI tools that already exist, and charge a setup fee plus a monthly retainer.

All figures below are example estimates, not guarantees. The prices are assumptions, not market data. Pre-tax, before your own salary.

Setup fees would add to the first month only. The large version needs support help because 15 firms means 15 sets of workflows, and your time is the limit. Winning even the small version depends on landing firms at all, and nothing here shows that firms will pay these rates.

For a sense of price anchors: NerdWallet says bookkeeping typically costs around $300 per month, and online services run from about $200 to $700 and up (updated 13 March 2026). That is what a small business pays a firm, so a firm's margin on a bookkeeping client is thin. A retainer has to save the firm more than it costs.

Which companies are already selling AI to accountants?

Five funded companies show the range. Their money comes from venture rounds, and none of this is what a solo founder can raise.

Two details matter more than the dollar amounts.

Basis. The company says its platform is used by approximately 30% of the top 25 accounting firms. That is a company claim. Wiss, a New Jersey firm, reported up to a 30% reduction in time spent on manual tasks, and a Boulay partner says on Basis's site that K-1-heavy returns that could take more than 100 prep hours are now down to maybe 15 or 20. These are customer statements published by the vendor, not independent tests.

Fieldguide and Rillet. Fieldguide says its platform is used by half of the top 100 US accounting firms. Rillet says it serves more than 600 customers. Both are company claims.

What can you do with $5K instead of $34M?

Funded companies spent millions on engineering and sales teams. With $5,000 to $50,000 you skip the product and sell the outcome.

A realistic first offer: pick one workflow at small firms, such as chasing client documents or reconciling statements, and install an existing tool plus a checklist. You charge for setup and a monthly check-in. Basis's small-firms page lists the kind of work vendors are automating: trial balance mapping, K-1 and document extraction, reconciliations and drafting journal entries from source documents. Those are the workflows to learn.

You can test demand cheaply. Offer five firms a free one-hour workflow audit and see how many ask for a paid install. If none do, you have spent a few evenings, not savings. For another example of testing a funded idea at small scale, see how a painting startup's instant-quote idea can be tried locally, or how reselling AI receptionists to contractors works without writing code. The same logic applies to estimating, as in the AI concrete estimating business.

Do you need a licence to help accountants use AI?

For setup, training and workflow design, no federal licence applies. The line is at preparing tax returns. The IRS says anyone who prepares federal tax returns for compensation must have a valid PTIN, and the application fee is $18.75 for 2026. Its FAQ says a bookkeeper who gathers receipts and records information while the preparer makes the substantive tax determinations is not a tax return preparer and does not need a PTIN.

Representing clients before the IRS is separate. The Annual Filing Season Program is voluntary and requires 18 hours of continuing education, and only attorneys, CPAs and enrolled agents have unlimited representation rights. CPA licensure itself needs 150 semester hours in all states, per BLS. Do not offer anything that looks like accounting or tax advice without checking your state board's rules.

How much does it cost to start?

These are example estimates for a one-person service business.

How do you start, step by step?

1. Pick a niche: bookkeeping firms, small tax practices or CAS departments. One niche beats three.
2. Learn the workflow by reading what vendors list for small firms, then list the five tasks that eat the most hours.
3. Get certified on the platforms firms already use. Intuit's ProAdvisor program is free to sign up for, and Xero says its certification is free.
4. Build one repeatable install: tool setup, a written checklist and a review step.
5. Offer five firms a free workflow audit.
6. Convert two to a paid pilot at a fixed price.
7. Put a human-review step in every workflow, because the accountant owns the output.
8. Write down hours saved per client from your own pilots, and show those numbers, not vendor claims.
9. Move pilots to a monthly retainer.
10. Ask each client for one referral to another firm.

Which free tools can you use?

What are the risks?

The biggest risk is that vendors sell directly to firms. Basis does not publish pricing and its pages push a demo, so it is aimed at firms that deal with its sales team. A reseller depends on whether vendors want partners.

Accuracy is the second risk. Basis stages work "for your review," which means a mistake that gets through is the firm's problem and possibly yours. Carry professional liability insurance and write review steps into your contract.

Demand for the lowest-skill work is also falling. BLS projects a 6% decline for bookkeeping, accounting and auditing clerks from 2025 to 2035 because software automates many tasks. If your clients are bookkeeping shops, their own market is shrinking.

What's still unclear?

Basis's reported adoption and time-savings numbers come from the company, its investors and its customers. Vinod Khosla, an investor, is quoted as saying Basis is driving 20% to 50% efficiencies across practices, and no independent test has verified this.

Basis does not publish pricing, so the retainers in the math above are assumptions. The weakest point of the whole idea is that firms may prefer to buy directly from a funded vendor with a SOC 2 report, and a one-person consultant cannot match that.

This is research, not legal, tax or financial advice.