ACH Payment Processing for Business

ACH payment processing works by transferring funds electronically between bank accounts through the Automated Clearing House network, which is operated by NACHA (National Automated Clearing House Association). Unlike credit card transactions that flow through card networks like Visa and Mastercard, ACH payments are bank-to-bank transfers that bypass card network fees entirely. This is why ACH fees are typically 50 to 80 percent lower than credit card processing fees — you are not paying interchange, assessment fees, or card network markup.

When a customer makes an ACH payment, they authorize a debit from their bank account using their routing number and account number. The payment is submitted to the ACH network, which batches transactions and settles them between banks. Standard ACH settlement takes 2 to 3 business days, though same-day ACH is available for time-sensitive payments at a slightly higher fee. For recurring billing — gym memberships, rent payments, subscription services — ACH is ideal because the authorization is given once and payments process automatically on schedule.

Unison Payment Solutions provides ACH processing as both a standalone service and as a complement to credit card processing. Many businesses offer both payment methods, letting customers choose their preferred option. For high-ticket transactions like B2B invoices, consulting fees, rent payments, and large purchases, ACH saves significant money compared to credit card processing. For example, a $5,000 B2B invoice processed via credit card at 2.5% costs $125 in fees. The same payment via ACH might cost $1 to $5 — a savings of over $120 on a single transaction.

ACH processing includes built-in fraud prevention through bank account verification, OFAC screening, and velocity checks. Return rates for ACH transactions are generally lower than chargeback rates for credit cards, and the dispute process follows NACHA rules rather than card network rules — which many merchants find more straightforward and predictable. For businesses in high-risk industries, ACH provides an additional payment channel that is not subject to card network restrictions, adding stability to your payment infrastructure.

Setting up ACH payment processing with Unison Payment Solutions is straightforward and typically completed within a few business days. The first step is to contact us for a free consultation where we assess your business needs, transaction volume, and the types of payments you want to collect via ACH. We recommend ACH processing configurations based on your specific use case — whether that is recurring billing, one-time invoice collection, or a combination of both.

Once your ACH merchant account is approved, we set up your payment infrastructure. For recurring billing, we configure automated payment schedules that pull funds from your customers' bank accounts on the dates you specify — weekly, bi-weekly, monthly, or on custom intervals. For invoice-based payments, we provide a secure payment portal where customers can enter their bank details and authorize one-time ACH transfers. All ACH payments include bank account verification to reduce the risk of returns due to invalid account information.

ACH compliance is handled entirely by our platform. Every transaction undergoes OFAC (Office of Foreign Assets Control) screening, and our system monitors for suspicious activity patterns. We provide reporting dashboards where you can track pending ACH payments, view settlement status, monitor return rates, and manage customer payment authorizations. If you are currently collecting payments via check, manual bank transfer, or high-fee credit card processing, ACH is the modern, automated, cost-effective alternative that will save your business time and money.