ACH Payments for Ecommerce: Lower-Cost Alternative to Card Processing

ACH (Automated Clearing House) payments allow customers to pay directly from their bank account, bypassing the card networks entirely. For WooCommerce merchants processing high-ticket transactions, B2B orders, or large subscription volumes, ACH can meaningfully reduce processing costs — but comes with trade-offs in settlement speed, return risk, and customer experience that need to be understood before deployment.

How ACH Payments Work

ACH is a batch payment network operated by NACHA (the National Automated Clearing House Association) that moves funds directly between US bank accounts. When a customer pays via ACH, they authorize the merchant to debit their bank account. The debit is submitted through the ACH network in a batch, typically once or twice daily, and settles in 1–3 business days.

ACH Fees vs. Card Processing Fees

For a $500 transaction: card processing costs $14.80; ACH costs $1.50 or less. The cost differential grows with transaction size, making ACH compelling for high-ticket B2B and large subscription payments.

ACH Return Risk

ACH’s primary risk is returns — the ACH equivalent of a declined card, but with a delay. An ACH return can occur days after the transaction appeared to succeed, because account verification happens after the batch settles. Common return reasons include insufficient funds (R01), account closed (R02), and unauthorized debit (R10). Unlike card chargebacks, ACH returns don’t carry a formal dispute process — merchants must handle unauthorized return claims through their processor.

Reducing ACH Return Risk

• Instant bank verification: Services like Plaid verify account ownership and balance before debiting, dramatically reducing NSF and unauthorized returns
• Micro-deposit verification: The traditional method — send two small deposits and ask the customer to confirm amounts — eliminates unauthorized account entries but adds friction
• Limit to known customers: ACH works best for repeat customers with established purchase history, not first-time buyers

When ACH Makes Sense for WooCommerce

ACH is most appropriate for high-ticket single transactions (invoices, project payments, large orders), B2B ecommerce where business buyers prefer bank payment, large recurring subscriptions where monthly card processing fees are significant, and customers who explicitly prefer bank payment for security or budgeting reasons.

ConvesioPay ACH Support

ConvesioPay supports ACH payment acceptance through Adyen’s bank payment infrastructure. ACH is available alongside card and wallet payment methods, allowing merchants to offer bank payment as an option for customers who prefer it. Standard card transactions continue at 2.9% + $0.30 per transaction with no monthly fees.