Accounts Payable

The mission of the Wayne County Accounts Payable Department is to ensure the accurate, timely, and responsible payment of the County’s financial obligations in support of essential public services. We are committed to safeguarding public funds through strong internal controls, compliance with applicable laws and policies, and the highest standards of integrity and transparency. By fostering collaborative partnerships with County departments, suppliers, and community stakeholders, we promote operational efficiency, fiscal accountability, and public trust in the stewardship of County resources.

 

Optimizing Payments with ACH

Our primary intent is to optimize the use of Automated Clearing House (ACH) payments for all suppliers (not including one-time payments to jurors, witnesses, etc.). ACH payments offer a faster, more secure, and environmentally friendly method for receiving funds. This initiative will not only accelerate payment processing but will reduce administrative burdens and provide greater visibility into payment status. We encourage all suppliers to transition to ACH for future payments. Detailed instructions on how to enroll in ACH payments are provided at the end of this page. 

Centralized Invoice Processing

To further improve accuracy and efficiency, we have centralized all Accounts Payable operations. Effective October 6, 2025:

  • Purchase Order (PO) supplier invoices must be submitted to Wayne County through the Oracle Supplier portal: Wayne County Supplier Portal | Engage Wayne County MI
  • Non-PO supplier invoices must be submitted directly to the Accounts Payable (AP) department for entry into the new Oracle system. AP@waynecountymi.gov
  • Please see the "How to get Invoices into Oracle" section.
  • Address for paper invoices:  Wayne County, Management & Budget, Accounts Payable, 500 Griswold Street, 14th Floor, Detroit, MI  48226

This centralization will ensure consistent data entry, better tracking, and a more streamlined approval process.

How Suppliers can get Invoices into Oracle: 

Here are the methods that are available to enter invoices/payment requests into Oracle:

o   PLEASE DO NOT EMAIL/SCAN ANY INVOICES THAT SHOULD GO THROUGH PROCUREMENT (have a purchase order (PO) or blanket purchase order (BPO).

o   Manual/direct entry.

  • Only AP staff is assigned this functionality.
  • Email all supporting documentation including a PDF copy of the invoice to: AP@waynecountymi.gov.

  • Include a separate pdf (Adobe Acrobat) file for each original invoice.

  • Put the name of the department in the Subject Line of the email so AP can properly route the invoice for approval and payment.

o    Supplier portal—Suppliers can upload their own invoices.

Required Invoice Information

To facilitate smooth processing in Oracle, it is crucial that all invoices include the relevant Wayne County Department or Elected Office that received the goods and/or services. This will help us accurately route and process Supplier invoices, preventing delays and ensuring timely payments.

These changes are a vital part of our transition to the Oracle Cloud ERP system and are designed to create a more efficient, transparent, and user-friendly experience for all Wayne County suppliers. We appreciate your cooperation and understanding as we implement these enhancements. These initiatives will lead to significant benefits for both the municipality and our valued partners.

Additional methods Wayne County Departments and Elected Offices can get payments into Oracle:

 o     ADFDI Create Invoices Spreadsheet entry. Populate all applicable fields in this spreadsheet and email to AP@waynecountymi.gov for upload into Oracle.(Oracle Create Invoices ADFDI Spreadsheet(XLSX, 315KB)).

  • The “invoices” tab needs to be completed & returned to AP.
  • The “Instructions” tab provides guidance.

One -Time Payments

One-Time Payments (OTPs) can only be entered into Oracle via the File-Based Data Import (FBDI) for Financials spreadsheet

  • FBDI Payables Payment Request Import Template(XLSX, 233KB)
  • Every field marked with an asterisk (*) must be populated for every OTP listed on the spreadsheet.
  • Please email the OTP spreadsheet along with a pdf file for each invoice included in the FBDI spreadsheet to AP@waynecountymi.gov.
  • Note that a main difference between OTPs and Non-PO Invoices is that no supplier is set up in Oracle for OTPs.
  • The FBDI spreadsheet is only for OTPs and the ADFDI spreadsheet for only for invoices. Thank you!

Please communicate to your Suppliers that the information in the "Required Invoice Information" section above must be clearly stated on all future invoices.

Frequently Asked Questions

What is Oracle Fusion Cloud?

Oracle Fusion Cloud is a suite of Enterprise Resource Planning (ERP) applications hosted on the cloud, offering integrated business functions such as procurement, financials, project management, and supplier relationship management.

What is the Oracle Supplier Portal?

The Oracle Supplier Portal is a secure, self-service platform that allows Wayne County suppliers to manage and track status for transactions such as purchase orders, invoices, profile updates, and payments with their Wayne County customers directly through Oracle Fusion Cloud. Registration for the Supplier Portal is on an invitation-only basis. If your organization receives regular payment(s) from the County, and/or has been awarded a Purchase Order or Contract by the County, and has not yet received a Supplier Portal invitation, please reach out to SupplierPortal@waynecountymi.gov.

 

 

 

 

Enroll in ACH / EFT

Thank you for your interest in transitioning from payment by check to ACH payment. Below are the forms Wayne County (WC) requires for Suppliers to switch from payment by check to ACH payment. Please return the forms to Wayne County at AP‑ACH@waynecountymi.gov. The email subject line should be “ENCRYPT – ACH Enrollment Request”—to encrypt the attachments which will contain sensitive, confidential information, such as banking credentials.

The Address Book Request form (AB Request form) is only necessary for new Suppliers or Suppliers with changes or updates to information such as name, contact or remit addresses, web address, phone number, etc. Please indicate what WC Department(s)/Elected Office(s) you do business with and return the AB Request form directly to the AP-ACH@waynecountymi.gov email box along with the other completed forms.

Please email AP-ACH@waynecountymi.gov if you have specific questions. Thank you & Wayne County appreciates doing business with you!

✅ ACH Supplier Setup Checklist

  • ACH Enrollment Form(PDF, 630KB) - Required for all
    • Signed by an authorized company representative.
  • IRS Form W-9(PDF, 138KB) - Required for all
    •  Required for 1099 reporting and tax compliance.
  • Address Book Request(PDF, 133KB) - Required for new Suppliers without a PO, NOT required to transition to ACH.
    •  Collects general supplier info (new or updated).
  • Bank Letter (preferred) or Voided Check - Required for all
    •  Verifies bank account details.
  • W-8BEN/W-8BEN-E - Required if foreign
    •  For non-US suppliers, including Canada.
  • Certificate of Insurance - Required if applicable
    •  For service vendors or contractors when working onsite at Wayne County locations.

       

 

 

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