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.
    • A 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.