GPS Research Library

The premier user-driven platform for tax professionals, legal researchers, and the public. Access over a century of IRS guidance, federal legislative history, and real-time email archives.

Access Barriers Removed The GPS Research Library has transitioned from a private subscription model to a fully public legal resource. We are dedicated to providing equitable access to federal law for all researchers.

Core Library Offerings

Access the Entire Library

Enjoy unlimited access to all authoritative and non-authoritative materials.

$179 / year FREE!
Browse Official Directory

Supported by advertisements to keep these vital legal resources accessible to everyone.

Coming Soon

We are rapidly expanding our digitized archives to include:

  • US Supreme Court Decisions
  • Treasury Regulations
  • Expanded Historical US Code
  • State & Territory Tax Content
  • Federal & State Tax Controversy Guidance
  • And much more!

If there is a feature or content you would like to see, please let us know here.