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Same Day ACH Transaction Limit Set to Rise to $10 Million in 2027
The Same Day ACH per-transaction limit is scheduled to increase from $1 million to $10 million on September 17, 2027. The higher ceiling will make larger corporate payments eligible for same-day processing, expanding the service’s role between traditional batch ACH and instant payments. Banks and payment providers can assess affected payment flows, origination capacity, cutoff management and reconciliation ahead of the change; the current $1 million limit still applies.