Prepare now to protect your business, strengthen fraud defenses and stay compliant.

Upcoming Changes: Action required updates will go into effect on March 20 and June 19, 2026. Your organization may need to adjust payroll files, vendor payment processes, and banking arrangements. Since June 19 is a federal holiday, many institutions will implement these updates on June 22, 2026.

Why This Matters

The Automated Clearing House (ACH) Network handles trillions in payments annually: your payroll, vendor bills and customer orders. On March 20, Nacha is implementing the most significant rule changes in decades, directly aimed at stopping fraud that costs businesses millions every year.

For private business owners, that means three things: stronger fraud detection requirements, updated payment descriptions and new responsibilities from your bank.

The Two Big Changes

Required Fraud Monitoring (March 20 or June 19)

You must now have documented processes to identify suspicious transactions before they’re sent — think vendor impersonation scams, payroll diversions and fake payment requests. This isn’t optional or vague. Your procedures must be in writing and reviewed annually.

Standardized Payment Descriptions (March 20 or June19)

Starting March 20, all payroll must be labeled “PAYROLL,” and all e-commerce purchases must be labeled “PURCHASE.” This affects your accounting software, ERP templates and payroll files. Your IT, finance team or software provider team will need to update these.

Business Owners: If you originated fewer than six million ACH transactions in 2023, you have a June 19 deadline instead of March 20. Check with your bank to confirm which phase applies to you.  

Your Action Plan 

• Review your current ACH fraud controls with your CFO or bookkeeper.
• Document your verification procedures for payee changes and new payments.
• Work with your ERP/payroll software provider to auto-populate PAYROLL and PURCHASE descriptions.
• Meet with your bank to understand their new monitoring responsibilities.
• Train your AP and payroll team on red flags (unusual requests, email address changes, pressure tactics). 

Managing ACH Changes Across Enterprise Operations: A Resource for Treasury Leaders

For treasury and payments professionals managing ACH at an enterprise level, the scope of these changes extends beyond business operations into complex payment governance, risk management and banking partnerships. If you manage a larger organization's treasury function or oversee payments across multiple entities, our companion insight article, 2026 ACH Rule Changes: What Treasury, Finance and Payments Leaders Need to Know, provides a deeper dive into the operational complexities, ERP integration challenges and banking relationship considerations that enterprise teams must address. Both articles share the same March 20 and June 19 deadlines, but tackle the rule changes from different operational perspectives.  

The Bottom Line

These changes aren’t just regulatory checkboxes — they’re your opportunity to tighten fraud defenses and strengthen payment governance. With a little preparation now, you’ll avoid last-minute scrambling and position your business to move money safely and confidently.