Please note, to register as a vendor in the State of Wyoming financial system you will need the following:

  • Complete the most current version of the IRS Form W-9.
  • Attach original banking documentation (if requesting payment by direct deposit), for example:
    • An unused, voided check.
    • An original letter from your financial institution verifying your account/routing information.
  • This completed documentation should be sent to the fiscal contact at the State Agency paying you for goods/services.

Please try WyOpen for any vendor payment questions.  


IRS Form W-9
Discontinuation Form

WyOpen – Transparency Platform

The Vendor Payments portal below will be decommissioned and no longer available after July 15th (on July 16th payments can be found on Questions and comments can be directed to: or 307.777.5258