Accounts Payable

Submitting an Invoice

Please send invoices directly to The subject line should include:

  • ISU Purchase Order Number or ISU Supplier Contract Number
  • Supplier Name
  • Invoice number

Purchase Order Example: PO-1135079 - Globex Corporation - Invoice #1234

Supplier Contract Example: SCN-1007017 - Acme Corporation - Invoice #1234

Invoices should NOT be sent to an individual ISU department. Sending invoices to the Sold-To or Ship-To Address may delay processing time.

ISU is in the process of moving to a paperless environment. We encourage our suppliers to send invoices via email to to ensure prompt payment according to contract terms. While electronic invoices are preferred if necessary hard-copy invoices can be sent to Accounts Payable’s address below.

Iowa State University

Accounts Payable - Financial Services Building

1015 HABER RD,

Ames, Iowa 50011-1004

Checks are printed daily, Monday through Friday, and mailed the following business day. Electronic payments are processed daily, Monday through Friday. Exceptions may occur because of holidays or other special circumstances.

Ames Laboratory Invoices

Invoices for work done for Ames Laboratory be submitted to

Subcontract/Subaward/Subrecipient Contract Invoices

Subcontract/Subaward/Subrecipient Contract invoices are not related to standard procurement agreements. These agreements are full collaborative relationships between ISU and the Subrecipient, whereby the terms of the prime award to ISU are flowed down to the subrecipient. Sponsored Programs Accounting must review all Subrecipient invoices. Invoices for work done on Subcontract/Subaward/Subrecipient contracts must be submitted to


All Inquiries regarding invoices, payments, and questions about checks received can be sent to