Transportation Audits Management System (TAMS)

The Transportation Audits Management System has replaced the legacy Transportation Account Receivable Payable System (TARPS). TAMS is an online portal for end-to-end auditing of federal transportation invoices.

TAMS will be used by Transportation Service Providers and federal agencies. TSPs can record protests and track their progress through an easy-to-use, cloud base process. To comply with Post-payment regulations, federal agencies now have the option to upload their paid invoices directly into TAMS.

Note: TAMS will Go-Live September 28, 2020.


  • Helps agencies comply with pre and post-payment audit requirements
  • Improves Transportation Service Providers user experience
  • Enables authorized users to access reports using reliable, near “real-time” data
  • Improves transportation data tracking
  • Improves accuracy of business transactions

How Does It Work?

Current TARPS users will receive an email notification from GSA with the TAMS link and a temporary log-in instruction. You will be required to change your password and update your contact information. If you are not a current TARPS user or did not receive an email notification, you will be able to register for access to TAMS via a link on the homepage (link will activate on Sept 28, 2020).

How to Get Started:

The Transportation Audits Division is here to help make the transition from TARPS to TAMS easier. For information on TAMS, please visit or email

For assistance with TAMS after September 28, 2020, please send an email to or call 866-668-3472 (press option 2 for TAMS).

Last Reviewed: 2022-12-05