Free Tax Research Tool
Ask a tax question in plain English. Get back the Internal Revenue Code section behind the answer, with a link to the underlying authority.
Not Tax Filing
The text of federal tax law is public. The harder work is translating a client question into the right Code section, reading the relevant subsection, and confirming that the source says what you think it says.
TaxMCP lets Claude, ChatGPT, and other compatible AI clients retrieve the Internal Revenue Code. You ask the question in front of you; TaxMCP gives the assistant a way to find the authority and link it for review.
TaxMCP is tax research software, not tax-return preparation software. It helps you find and verify authority; it does not prepare or file returns.
Ask Naturally
HOME OFFICE
“What are the requirements for a home-office deduction?”
Start with IRC §280A, then inspect the subsection and facts that control.
QBI DEDUCTION
“Show me the qualified business income deduction rule.”
Find the statutory starting point in IRC §199A.
PASSIVE LOSSES
“Where does the Code limit passive activity losses?”
Retrieve the authority in IRC §469, then follow the limitations that matter.
KNOWN CITATION
“Show me IRC §1091.”
Go straight to a section when you already have the citation to verify.
TaxMCP returns a research starting point, not a tax conclusion. Review the authority, definitions, exceptions, effective dates, and facts before relying on it.
Free Plan
Test real client questions and build a source-first research habit.
Search the federal statute by question, topic, or section number.
Review the authority instead of accepting a black-box answer.
Keep the research step inside the assistant you already use.
Need Treasury Regulations, IRS Publications, Revenue Rulings, Revenue Procedures, or IRS Notices? Pro adds unlimited federal research for $9/month. Pro+ adds supported state tax codes and U.S. Tax Court opinions for $29/month.
How It Works
01
Add TaxMCP in Claude or ChatGPT and sign in. There is no local server or research database to maintain.
02
State the issue, not merely the citation you hope is correct. Start with the client question.
03
Read the relevant section in context. Confirm its tax year, scope, limitations, and fit with the facts.
FAQ
Yes. The Free plan includes 20 Internal Revenue Code searches each day. No paid subscription is required to begin using it.
No. The Free plan covers the Internal Revenue Code. Pro adds unlimited federal research across Treasury Regulations, IRS Publications, Revenue Rulings, Revenue Procedures, and IRS Notices.
No. TaxMCP is a research tool. It does not prepare, e-file, amend, or submit tax returns.
No. Use TaxMCP to retrieve the authority, then read the source in context and apply it to the relevant facts and tax year.
Use your AI assistant to search the Internal Revenue Code, then open the authority behind the answer.
Start Researching Free