Same-day ACH now moves up to $1 million per payment across three daily settlement windows. Here is how to decide which payments justify the premium and which can ride standard rails.
Three windows, one decision
Same-day ACH has quietly become one of the most useful tools in business payments: three settlement windows every banking day, a $1,000,000 per-payment limit, and near-universal receiving bank coverage. For merchants, the practical question is no longer "can I settle today?" but "which payments are worth the same-day premium, and which can wait for standard next-day settlement?"
The answer is usually a split. Payroll corrections, time-sensitive vendor payments, and high-value B2B invoices justify same-day treatment — the cost is trivial next to a wire and the goodwill is real. Routine subscription debits and scheduled collections, by contrast, lose nothing by settling next-day at standard rates.
Where merchants capture the value
The biggest wins come from cash-flow compression: businesses that collect by ACH and pay suppliers on terms can shrink their working-capital gap by a full day or more, which compounds meaningfully at scale. Refunds are another underrated use — a same-day refund defuses disputes before they become chargebacks or complaints.
Sterling ACH supports same-day origination alongside standard windows and real-time RTP payouts, so you can set rules per payment type instead of choosing one speed for everything. Most of our merchants route under 20% of items same-day and still feel the difference in their daily cash position.
Having trouble
getting approved?
Sterling Ridge approves 99% of applicants — including high-risk businesses and merchants dropped by other processors.
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