Updated October 2026
Selling a tax practice: the question to raise before any data deal
A tax practice is sold for its clients and its seasonal revenue. Before any of its records go near an AI data buyer, one question comes first: what may be done with tax return information. We do not answer it. The CPA trade press is already on the topic: CPA Practice Advisor ran a piece on what to settle before client tax data touches AI.1
Question one
Why tax return information is different
Most businesses can scope a data license around their own procedures. A tax practice's working files are mostly client returns and the documents behind them, and those carry specific rules for preparers. That makes the licensing company's rights review the starting point, not a formality. Ask a licensor how it handles tax return information before you send anything, including a sample.
The licensors on this site describe excluding client material: Polyshares excludes data held on behalf of clients and scrubs personal data through a partner, and SimpleClosure keeps sensitive records out of its deals.2,3,4
| Fact | Value and source |
|---|---|
| CPA trade press on client data and AI | CPA Practice Advisor ran "What to Settle Before Client Tax Data Touches AI" on 2026-10-12 |
| Excluded data | Data held on behalf of clients is excluded |
What may be left
The parts of a tax practice that are the firm's own
Once client returns are out of scope, what remains is the firm's playbook: intake checklists, organizer templates, review procedures, the internal knowledge base on tricky situations, training material for seasonal preparers and the workflow history in tools such as TaxDome or Canopy. Across buyers the request is similar: micro1 names SOPs, knowledge bases and task histories, Polyshares Slack, email, Drive and tickets, and Project Lazarus wikis, knowledge bases and communications.5,6,7
Brokers name the field. Pewter lists accounting and tax among its targets and names workpapers and SOPs, and says a 60-person accounting firm received $350K, a claim it has not had verified.8,9,10
Size
Seasonal staff and the headcount floors
Floors count employees, mostly 20 to 30+: Nyne and Cognor 20+, micro1 30+. A tax practice that doubles in the spring and shrinks in the summer should ask how a licensor counts seasonal staff. A storefront office with three year-round staff will not qualify; a multi-office firm with a permanent review team might, if its own procedures are rich enough to license.11,12,13
FAQ
Questions, answered with sources
Pewter says a 60-person accounting firm received $350K. It names no buyer and says the figure is not independently verified.10
Yes. CPA Practice Advisor published "What to Settle Before Client Tax Data Touches AI" on 2026-10-12.1
Pewter says the licensing firm pays it at close; the owner pays nothing.8
We do not answer legal questions. Ask the licensing company: their team reviews this with you before anything is signed.
We do not answer legal questions. Ask the licensing company: their team reviews this with you before anything is signed.
Before you sign
Legal questions go to the licensing company
We do not answer legal questions. Ask the licensing company before you sign: their team reviews these with you.
Questions for this kind of business
- How does IRC 7216 apply to our files, and what will you exclude because of it?
- Does the practice sale agreement transfer client files to the buyer, and does that affect a license?
- Do professional rules apply (AICPA, IRC 7216, HIPAA, ABA Model Rule 1.17, insurance agency contracts, adviser rules, state boards)?
- How is the payment taxed?
Questions for any buyer
- Is the license exclusive, and for how long?
- Can you sublicense the data, and to whom?
- Which AI labs will receive it, and will you tell us?
- How long do you keep it, and how is it deleted?
- What is your liability cap, and who indemnifies whom?
- Will the contract ban re-identification of people in the data?
- Who removes personal data, by what method, and do we approve it first?