ACH Payment ProcessingACH (Automated Clearing House)

ACH payment processing refers to bank-to-bank electronic transfers made through the Automated Clearing House network — used for eChecks, direct deposits, and recurring drafts. ACH is typically more cost-effective than card processing for higher-ticket or recurring payments, settling in 1–3 business days through the Federal Reserve or the Electronic Payments Network (EPN). Unlike card payments, ACH vs credit card processing involves no interchange fee and a fundamentally different cost structure.

ACH is the electronic backbone behind direct bank-to-bank transfers in the United States. When you set up autopay for a utility bill, receive a payroll deposit, or pay a vendor via eCheck, that transaction travels through the ACH network. For merchants, ACH payment processing is a lower-cost alternative to card processing — especially for large invoices, subscription billing, and B2B transactions where the customer is willing to pay by bank account rather than card.

Unlike card payments, ACH does not involve card networks like Visa or Mastercard. There is no interchange fee. The cost structure is fundamentally different — usually a flat fee per transaction or a small percentage with a cap — which makes ACH transfer merchant services significantly cheaper at higher dollar amounts. According to the Federal Reserve’s ACH payment systems overview, billions of ACH transactions are processed annually, making it one of the largest payment networks in the world.

The process follows a standard flow from origination to settlement:

The merchant’s bank is called the ODFI (Originating Depository Financial Institution). The customer’s bank is the RDFI (Receiving Depository Financial Institution). The ACH operator routes the transaction between them. The CFPB’s ACH guidance provides additional context on consumer rights in automated clearing house payments.

There are two directions of flow:

• ACH Debit (pull) — the merchant pulls funds from the customer’s bank account. Used for recurring billing, subscription payments, and eCheck payments at point of sale.
• ACH Credit (push) — the sender pushes funds to another account. Used for payroll direct deposit, vendor payments, and B2B transfers.

For most merchants, ACH debit is the relevant transaction type — it is how you collect payment from a customer’s bank account without running a card.

ACH is not right for every transaction. It works best when:

• Transaction amounts are large enough that card interchange makes a meaningful dent in margin — generally $500 and above
• The customer relationship is ongoing — subscription billing, retainer clients, monthly service agreements
• The customer is a business, not a consumer — B2B automated clearing house payments are common and widely accepted
• Same-day settlement is not required — if 1–3 days works for your cash flow, ACH transfer merchant services is typically the cheaper path

For low-ticket retail transactions where the customer is standing at a terminal, card processing remains faster and more practical. ACH and card processing are not mutually exclusive — many merchants use both depending on transaction type.

Expand your understanding with these related payment processing concepts:

Wondering Whether ACH Could Cut Your Processing Costs?

Send us a recent processing statement. We will look at your transaction mix, identify where ACH would replace card payments cost-effectively, and project the annual savings — typically meaningful for any merchant processing recurring or B2B transactions over $500. Card processing stays where it makes sense; ACH replaces it where it pays.

No obligation • No pressure • Response within one business day