ACH lets businesses move money directly between bank accounts through the Automated Clearing House network, the U.S. system governed by NACHA that clears billions of transactions a year. For anyone chasing lower fees, steadier cash flow and easy recurring billing, accepting ACH is a genuine advantage.
What ACH payments are
ACH comes in two flavors: direct deposit, used for payroll, tax refunds and benefits, and direct debit, which businesses use to collect invoice and subscription payments. Unlike cards or wires, ACH is batch-processed, which keeps costs down. Most transactions clear in 1-3 business days, with same-day options available.
Why businesses use it
- Lower fees - typically $0.20 to $1, or 0.5%-1% per transaction, versus 2%-3% on cards. On a $1,000 monthly retainer that is roughly $10 instead of $29 - about $228 saved a year from a single client.
- Reliable bank-to-bank transfers - no declines from expired cards, so recurring billers like gyms avoid chasing updated card info.
- Faster than checks - same-day ACH can deliver funds in about 24 hours instead of 5-7 days by mail.
- Set-and-forget for customers - a one-time authorization powers automatic recurring payments and boosts retention.
How to start accepting it
You need an active U.S. business bank account and an ACH processor or NACHA-compliant gateway - Stripe, Plaid or Dwolla, for example - integrated via payment links, invoicing, recurring billing or an API. The flow: collect the customer's routing number, account number and authorization, submit the debit request, keep a record of that authorization (NACHA requires it, and disputes can be filed up to 60 days out), then reconcile deposits in tools like QuickBooks or Xero. Protect it all with SSL encryption, tokenization, real-time account verification, and authorization logs kept at least two years.