What is straight-through processing?

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Straight-through processing (STP) is the end-to-end automated processing of a financial transaction — from initiation to completion — without any manual intervention at any step. A transaction that achieves straight-through processing enters a system, is validated, matched, approved, and posted entirely by automated logic, with no human touch required.

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In finance operations, STP rate is a key performance indicator: the percentage of transactions processed without exception or manual handling.

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Why STP matters

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Every transaction that requires manual intervention has a cost — the cost of the person's time to review it, the cost of any delay it introduces, and the risk of error in the manual step. STP eliminates that cost for matched, straightforward transactions. It also makes finance processes scalable: a business processing 10 times more transactions does not need 10 times more finance staff if its STP rate is high.

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STP in accounts payable

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In AP, a transaction achieves STP when an invoice arrives, is read and extracted automatically, matches to a purchase order and goods receipt within tolerance, is approved by workflow, and is scheduled for payment — all without anyone manually reviewing it. Typical enterprise AP operations achieve STP rates of 60–80%. Best-in-class operations exceed 90%.

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STP in reconciliation

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In reconciliation, a transaction achieves STP when it is automatically matched to a corresponding entry in another system with high confidence and cleared without manual review. Unmatched items — exceptions — are surfaced for human investigation.

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Related: AP automation · Three-way matching · Cash application · Finance automation