Revised:  08/16/2024


Vouchers Overview

Vouchers are used to schedule and make payments for expenditures in OAKS FIN. Vouchers are created from invoices and each voucher corresponds to one invoice. Once created, vouchers go through a series of edits, matching, agency-level approvals (including centralized OBM approval if required), budget checks, and threshold validation before a check or EFT is created.

OBM Shared Services (OSS) processes a wide variety of Accounts Payable transactions by managing the receipt and handling of invoices for numerous state agencies. Whenever possible, participating OSS agencies shall require suppliers to submit invoices to OSS. Occasionally, OSS participating agencies may receive an invoice that needs sent to OSS. When this occurs, the agency must submit an OSS "Standard Invoice Pre-Processing Form" (PPF) with the invoice. Once a supplier provides goods or services, the invoice is submitted to OSS and is scanned into OAKS FIN for paperless processing and retention. The invoice image is then presented to the Accounts Payable (AP) associate to enter critical invoice details into OAKS FIN.

The voucher process includes creating vouchers, voucher inquiries, voucher maintenance, and voucher approval.

Creating Vouchers

Non-OSS participating agencies will need to determine the appropriate type of voucher to create for the specific invoice. Different types of vouchers can be created based upon the amount, supplier, type of purchase, and a variety of other factors.

Voucher Status

Explore the various voucher statuses by clicking on the boxed areas.

Vouchering with OSS

OBM Shared Services (OSS) processes a wide variety of Accounts Payable transactions by managing the receipt and handling of invoices for numerous state agencies.

Voucher Inquiries

A Voucher Inquiry allows searching for a voucher's status information and any related payment information. This inquiry allows users to look for information in a variety of ways, such as supplier invoice number, voucher ID, supplier name.

Voucher Maintenance

Maintenance of vouchers within OAKS FIN is occasionally needed to correct entry, delete, or cancel voucher or unmatch an encumbrance of funds that has been made against a voucher.

Voucher Approval

Once a voucher is created, OAKS FIN routes the voucher for approval. OAKS FIN provides up to three levels of approval with an agency. Vouchers that include pre-audit account codes, whether through direct data entry or by interface, will be routed to OBM for approval in OAKS FIN.


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