Straight-through processing (STP) is the completion of a document workflow from intake to output with no human intervention, and the STP rate is the share of documents that clear that path untouched. In commercial real estate document extraction, a lease or rent roll that is read, validated, and posted without a reviewer opening it counts toward the STP rate.
How Does Straight-Through Processing Work?
Straight-through processing works by routing each document through automated stages of intake, extraction, validation, and posting, and passing only the documents that clear every check without human help. A document flows straight through when its extracted fields meet their confidence thresholds and pass validation rules; anything that fails is diverted to review as an exception.
The STP rate is the outcome of that routing, measured as documents cleared untouched divided by total documents. IBM describes straight-through processing as an aspirational methodology in which financial or business transactions are completed end to end without manual handling, spanning initiation, validation, enrichment, routing, and fulfillment. In CRE the same stages apply to a lease abstract or a rent roll import.
Stage | What happens |
Intake | Document is classified and queued for extraction |
Extraction | Fields are read, each with a confidence score |
Validation | Business rules and cross-field checks run automatically |
Routing | Clean documents post; failures divert to exception handling |
Posting | Passed documents write to the system of record untouched |
Why Straight-Through Processing Matters
Straight-through processing matters because it is the metric that translates extraction accuracy into labor saved. A system can be accurate field by field and still create work if every document lands on a reviewer's desk. The STP rate measures how many documents skip the desk entirely, which is what determines whether an extraction pipeline actually reduces headcount hours.
STP is not all or nothing. It is reported as a rate, and benchmarks vary widely by workflow maturity. In accounts payable, legacy automation typically reaches 30% to 50% touchless, while ChatFin cites a 2026 top-quartile benchmark above 80%, and Docsumo reports best-in-class intelligent document processing deployments reaching 95% or higher. The gap between a 50% and a 90% STP rate is the difference between reviewing half your documents and reviewing one in ten.
Example
Straight-through processing is easiest to see across a batch. A CRE asset manager runs 1,000 rent rolls through an extraction pipeline in a month. The routing policy posts any document whose fields all clear a 0.90 confidence threshold and pass validation, and diverts the rest to a reviewer.
Outcome | Documents | Share |
Cleared all checks, posted untouched | 880 | 88% |
Failed a confidence threshold | 90 | 9% |
Failed a validation rule | 30 | 3% |
Total processed | 1,000 | 100% |
The STP rate here is 880 divided by 1,000, or 88%. The remaining 120 documents route to exception handling. If a reviewer spends 12 minutes on each exception, the month's manual load is 120 times 12, or 1,440 minutes, roughly 24 hours, instead of the 200 hours a full manual review of all 1,000 at 12 minutes each would demand. The 88% STP rate is what converts the accuracy of the model into a 176-hour saving.
Variations and Edge Cases
Straight-through processing is measured and tuned differently depending on how strict the checks are and where the rate is counted. The variants below change what a reported STP number means and how safely it can be pushed higher.
Variant | Behavior |
Document-level STP | The whole document must clear every check to count as touchless |
Field-level STP | Individual fields clear automatically even if the document is reviewed |
Threshold-tuned STP | Raising confidence thresholds lowers STP but reduces posted errors |
Blended STP | A single rate averaged across document types masks weak categories |
Reported vs true STP | Documents auto-posted with undetected errors inflate the apparent rate |
Straight-Through Processing vs Automation Rate
Straight-through processing is often confused with a general automation rate, but they measure different scopes. Straight-through processing is the share of documents that clear the entire workflow end to end with zero human touch. An automation rate can count any task the system performs, including steps on documents that still require a reviewer somewhere in the chain.
The distinction matters because a high automation rate can hide a low STP rate. A pipeline might automate extraction on 100% of documents yet still route 40% of them to review, giving a 60% STP rate. Straight-through processing counts only the documents no human touched at all, which is the stricter and more operationally honest measure.
Frequently Asked Questions
What is a good straight-through processing rate?It depends on document type and how costly an error is. In accounts payable, legacy tools reach 30% to 50% touchless while 2026 top-quartile benchmarks exceed 80% and best-in-class intelligent document processing reaches 95% or higher, per ChatFin and Docsumo. Clean, structured documents support higher rates than complex leases.
How is the straight-through processing rate calculated?The straight-through processing rate is the number of documents completed end to end with no human intervention divided by the total number of documents processed. If 880 of 1,000 rent rolls post untouched, the STP rate is 88%.
What lowers a straight-through processing rate?Documents that fail confidence thresholds or validation rules divert to review and lower the rate. Poor scan quality, unusual formats, amended or narrative clauses, and stricter thresholds all push more documents into exception handling and reduce STP.
Related Terms
Exception Handling
Intelligent Document Processing
Confidence Score
Human-in-the-Loop
Rent Roll