2026 New Nacha Rules Update: What GovCon Finance Teams Should Do Now

The Automated Clearing House (ACH) Network is the backbone of U.S. payments, processing tens of billions of transactions each year. As ACH usage grows, so do fraud risks.

In response, Nacha (National Automated Clearing House Association), which governs the ACH network, has announced the most significant ACH rule changes in years. These updates are designed to reduce successful fraud attempts and improve fund recovery after fraud occurs.

For government contractors, these updates are more than a banking compliance change. They affect vendor payment controls, 1099 payment workflows, fraud prevention procedures, and the documentation finance teams may need to provide to banks, auditors, and internal stakeholders. Reviewing these processes now can help reduce payment risk, strengthen internal controls, and avoid last-minute remediation before the 2026 deadlines.

They apply to organizations that originate affected ACH entries and represent a shift from informal best practice to documented compliance expectations.

1. Standardized ACH Descriptions (Effective March 20, 2026)

Beginning March 20, 2026, NACHA requires standardized Company Entry Descriptions to provide higher visibility for specific transaction types.

Key Changes

“PAYROLL” for 1099 vendors:

• The entry description PAYROLL must be used for PPD credits that represent wages, salaries, or similar compensation paid to a consumer account.
• Use PAYROLL entry description with the PPD entry class code for ACH payments to 1099 vendors when the payment represents compensation.
• The PAYROLL/PPD designation is not required for 1099 vendor reimbursements (e.g., travel or expenses); however, separating these payments is optional and may add unnecessary administrative effort.
• PAYROLL should not be used for employee expense reimbursements, travel reimbursements, mileage reimbursements, royalties, interest, dividends, or similar non-compensation payments.

“PURCHASE” for E-commerce Transactions:

• Required for consumer e-commerce purchases of goods using applicable ACH debit entries.
• This is generally less relevant for many GovCon Synergies clients, who more commonly use corporate cards, vendor ACH payments, or direct debit arrangements outside this consumer e-commerce use case. Clients should confirm applicability with their bank or ACH advisor.

GovCon Synergies recommends that Unanet customers review how 1099 and individual payees are identified, how ACH export templates are configured, and whether a separate template is needed for payments that qualify for the PAYROLL description. Customers should validate the final ACH file format, Standard Entry Class (SEC) code, and Company Entry Description with their bank or ACH advisor before using the updated process in production.

Configuration Steps may include:

• Using a clear naming convention to identify relevant 1099 or individual-payee records
• Reviewing whether a separate Nacha export template is needed for qualifying compensation payments to properly reflect the PAYROLL/PPD designations
• Testing the updated export file with the bank before production use

2. ACH Fraud Monitoring Requirements (Effective June 22, 2026)

Starting June 22, 2026, all ACH Originators must establish and maintain a documented ACH fraud monitoring policy. This policy must detail risk-based processes and procedures reasonably intended to identify ACH entries initiated due to fraud. Your bank may request this policy at any time as a condition of continuing ACH services.

For government contractors, these requirements align closely with internal control, audit, and payment-security expectations.

GCS Recommended Fraud Mitigations

GovCon Synergies recommends including the following elements in your documented procedures:

• Validation Procedures: Document how recipient banking information is obtained, verified, and updated (e.g. voided check, bank documentation, prenotes).

• Independent Authentication: Verify all payment detail changes using a secondary communication method. For example, email change requests should be confirmed via a callback to a phone number already on file.
• Dual Controls: Require separate individuals to initiate and approve ACH files and vendor setups within online banking platforms.
• Annual Review: Document that ACH fraud monitoring procedures are reviewed at least annually to address evolving risks.
• Transaction Alerts: Enable alerts for large, unusual, or high-risk transactions.
• Regular Reconciliation: Reconcile ACH activity at least weekly or more frequently depending on payment volume and risk profile.
• Accountability: Identify a designated point of contact for investigating discrepancies and working with the bank in a timely manner. Regularly review user access and remove permissions when roles change or employees leave.
• MFA: Require multi-factor authentication for ACH releases, approvals, and administrative access wherever available.

How Unanet Can Help

Unanet for GovCon helps finance teams manage vendor records, AP workflows, approvals, reporting, and audit-ready documentation in a structured system. As Nacha requirements evolve, having payment-related processes documented and managed in a governed environment can help reduce manual effort, improve visibility, and support stronger control evidence.

Executive Action Plan

To meet the 2026 NACHA mandates, financial leaders should act now:

1. ACH Processes: Identify 1099 and individual payees in Unanet, determine which payments may qualify for PAYROLL description, and validate any Nacha export template changes with your bank or ACH advisor.
2. Develop and maintain a written ACH Fraud Monitoring Policy: Document risk-based procedures for identifying potentially fraudulent ACH activity. Failure to maintain appropriate procedures could put ACH services with your bank at risk.
3. Build in Accountability: Schedule annual reviews to keep fraud prevention procedures current and effective as risks, staff, and banking processes change.

Need help navigating the 2026 NACHA rule changes or reviewing your GovCon payment-control processes?

GovCon Synergies and Unanet can help you assess your ACH, AP, and vendor payment workflows and identify the next practical steps before the 2026 deadlines. https://govconsyn.com/contact-us/