Automated Clearing House (ACH)

The Automated Clearing House, or ACH, is the batch-based electronic payment network that moves money between US bank accounts, governed by Nacha rules and operated by the Federal Reserve and a private clearing house. It handles direct deposits, bill payments, and transfers, processing more than 30 billion payments a year worth tens of trillions of dollars.

Why it matters

ACH is the plumbing of American financial life: paychecks, mortgage payments, and most transfers into brokerage and crypto exchange accounts ride on it. Its defining traits are batching and delay. Payments settle in one to three business days, or same day for eligible transactions, and nothing moves on weekends or holidays. Crucially, ACH transfers can be reversed for a window after settlement, which is why platforms hold newly deposited funds before releasing withdrawals.

Newer systems like FedNow, launched in 2023, offer instant settlement, but ACH's near-zero cost keeps it dominant for routine payments.

In the gold vs bitcoin debate

ACH is the system bitcoin is most often measured against. A bitcoin transaction settles with finality in about an hour regardless of the day, cannot be reversed, and respects no banking calendar, while an ACH transfer is cheap but slow, reversible, and permissioned. Gold settles instantly in person and glacially at institutional scale, where moving vaulted metal takes days. Each system embodies a different answer to the question of who you must trust, and for how long, when value changes hands.