ChatGPT & Claude for tax preparers

Updated 2026-10-14. Educational only, not legal advice.

Where general AI assistants help

• Client communication: draft document-request emails, engagement-letter explanations, and IRS-notice summaries for clients.
• Notice triage: summarize an IRS notice (with identifiers removed) and list the response steps to check.
• Workpaper prep: turn messy notes into a structured memo; practitioners report using Claude for workpapers and analysis.
• Excel help: write formulas and clean up trial-balance exports.

Where they're risky

• Citations can be hallucinated. Verify every code section and ruling.
• State-specific and recent-law questions are where tax-specific research tools (Blue J, CoCounsel, TaxGPT, Bizora) earn their cost.

Data-security checklist

1. Remove SSNs, EINs, names, and addresses before pasting anything.
2. Use a business or team plan and confirm the data-training settings.
3. Add AI use to your WISP (IRS Pub 4557 / FTC Safeguards Rule).
4. Never upload full returns to consumer accounts.

Starter prompts

Summarize this IRS notice [identifiers removed] in plain English for a client. List the deadline, the amount at issue, and three response options. Flag anything I should verify.

Turn these notes into a workpaper memo with sections: Facts, Issue, Authority (leave placeholders. Do not cite sources you cannot verify), Conclusion.

FAQ

Is it safe to paste client data into ChatGPT or Claude?

Not by default. IRS Publication 4557 and the FTC Safeguards Rule require you to protect taxpayer data. Strip identifiers, use business plans with data-training opt-outs, and document the use in your Written Information Security Plan (WISP).

Can ChatGPT or Claude replace tax research tools?

Practitioners on r/taxpros report using general assistants for drafting and summaries, and tax-specific tools such as Blue J, CoCounsel, or Bizora when they need authoritative citations. Always verify against primary sources.