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ACH Audit Services

The NACHA Operating Rules require every participating institution to conduct an annual audit of its ACH operations and related processes and to implement an ACH risk management program in accordance with the requirements of its regulators.

Insufficient internal resources, competing priorities and an increase in the complexity of ACH processes can constrain the depth of the review and the ability to perform the audit on time. WesPay offers financial institutions a trusted and experienced addition to internal resources.

WesPay has a suite of services and tools available to match the varying ACH audit needs of institutions. Whether you have us do the full audit for you, need a risk review in conjunction with our full audit or do the audit yourself, WesPay has a solution.

Benefits of using WesPay Audit Services:

  • Knowledgeable and accredited ACH Professionals (AAP) will work with you and your staff to successfully complete your required annual ACH audit.
  • Your staff receives training while performing the audit as the WesPay staff explains the requirements during the process.
  • Procedures and controls that can be strengthened are identified during the course of the review.
  • An effective audit can serve as an early warning barometer and zero in on specific areas requiring additional attention.




Are you a Third Party Provider?

We also do audits for Third Party Providers.

More Information


Download informational brochure



WesPay ACH Audit Workbook

ACH Audit Workbook

This self-guided interactive digital workbook is designed to provide guidance for financial institutions to conduct, complete and document the ACH Audit examination required by the NACHA Operating Rules.

Non-member Price: $200
Member Price: $125

* Complimentary Copy for Member Companies

For those of you whose company has not received the free copy, please contact Member Services at (415) 433-1230 or


WesPay Full ACH Audit Service

Have WesPay complete your audit

Full ACH Audit - An Accredited ACH Professional (AAP) from our staff will conduct your annual ACH audit and examine each facet of your ACH operations including receiving, originating, record retention, timelines of processes, information reporting and completeness of agreements. ACH Audits can be performed for financial institutions as well as third-party vendors.


  • On-site completion of the audit requirement in Appendix Eight of the NACHA Operating Rules
  • Review of operating procedures and internal controls
  • Review of ACH exception handling
  • Preliminary management meeting to review initial findings and recommendations
  • Written ACH Audit Management Report with findings for improvement at the conclusion of the audit


Contact WesPay staff today to arrange a consultation:
(415) 373-1200


Essential Areas of Compliance

  • Record retention
  • Entry acceptance
  • Handling of Prenotes and Notification of Change items
  • Availability and posting
  • Statement information and payment information reporting
  • Handling of Stop Payments, Return Items, and Adjustments Entries
  • UCC4A compliance
  • ACH data security
  • Originator agreements and exposure limits (if applicable)


Download informational brochure


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