ACH Transfer
An electronic bank-to-bank transfer that runs through the ACH network—the behind-the-scenes system that handles direct deposits, bill payments, and account transfers at little or no cost.
You know when your paycheck shows up in your account on Friday morning? That's an ACH transfer at work. ACH (Automated Clearing House) is the electronic network behind most bank-to-bank money movement in the US—direct deposits, online bill payments, transfers between your own accounts, all of it.
The network handles over 30 billion transactions a year, moving trillions of dollars. There are two flavors: ACH credits push money to another account (like your employer sending your paycheck), and ACH debits pull money from an account (like your gym membership auto-payment).
Standard ACH transfers take 1-3 business days because they're processed in batches throughout the day rather than one at a time. Same-day ACH—available since 2016—speeds things up for a small extra fee, but it's still not instant.
The best part? ACH transfers are usually free or dirt cheap (under $3) for you. Compare that to wire transfers at $15-$50 a pop, and ACH is the obvious pick for anything that isn't time-sensitive—moving money to savings, paying rent, funding your brokerage account.
One annoying thing about ACH: the descriptions on your bank statement are often vague ("ACH DEBIT" or "ACH CREDIT") without telling you who it's from. Good transaction categorization software can dig into the extra data attached to ACH records to figure out the actual sender or recipient.
Frequently Asked Questions
▸How long does an ACH transfer take?
Most ACH transfers land in 1-3 business days. Same-day ACH is available for a small fee and—as the name says—processes within the same business day. Keep in mind that weekends and holidays can add delays since ACH doesn't run on non-business days.
▸Can ACH transfers fail?
They can. Common reasons include insufficient funds, a closed account, a wrong account number, or an unauthorized transaction. Most failed ACH transfers get returned within 2 business days, and the money goes back to whoever sent it.
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