ASSIST
ASSIST is our secure, web-based system used by many government agencies to manage invoicing and payments. It’s free for vendors and contractors.
How to register a new contractor company [PDF - 330 KB]
Instructions on how to register your company in ASSIST if you are currently not registered.
How to register a contractor user [PDF - 389 KB]
Instructions on how to register your company’s POCs for review and signatures in ASSIST.
ASSIST and IPP
We are here to help vendors navigate the new invoice process. If you received the appropriate direction to do so, you will need to register in both ASSIST and the Invoice Processing Platform, or IPP.
How to register a new contractor company [PDF - 330 KB]
Instructions on how to register your company in ASSIST if you are currently not registered.
How to register a contractor user [PDF - 389 KB]
Instructions on how to register your company’s POCs for review and signatures in ASSIST.
Visit IPP.gov to access IPP and get started with comprehensive step-by-step guides, troubleshooting tips, FAQs, and helpful resources. After logging in, you can easily access instructions for submitting invoices, setting up notifications, and managing your account.
IPP-only
We are here to help vendors navigate the new invoice process within the IPP. Visit IPP.gov for step-by-step guides, troubleshooting tips, FAQs, and helpful resources to get started. Once you log in, you’ll find instructions for submitting invoices, setting up notifications, and more.
Web vendors
Use these resources to easily onboard to our GSA Web Vendor Application website.
Web vendor registration instructions with images [PDF - 327 KB]
View screenshots walking you through how to register to our GSA Web Vendor Application.
Web vendor basics [PDF - 1 MB]
Instruction manual for using the GSA Web Vendor Application, where you can access current payment and invoice status, and submit invoices.
U.S. General Services Administration