Initiative file / Fiscal
Electronic-invoicing anomaly detection
Evidence record v2
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- Institution
- Finance
- Editorial classification
- Verified adoption
- Initiative type
- AI system
- Documented phase
- Operational
- Relationship to AI in the source
- Explicit relationship to AI
- Execution evidence
- Confirmed
- First evidence
- Last verified
Documented scope
What it is
Finance Ministry solution for detecting anomalous patterns in electronic invoices and prioritizing audits. The project began in 2022, was tested in 2023, and the 2025 Macrofiscal Risk Report records continued use of the E-IAD detector.
Objective stated by the institution
Detect anomalous patterns in electronic invoices to prioritize tax-audit cases.
Known timeline
Only milestones with an explicit date in the sources or editorial review are shown.
- First evidence
- Pilot start
- Operational start
- Latest editorial verification
Evidence reading
Each dimension is assessed separately. Undetermined marks an evidence gap; not applicable means the dimension does not correspond to the documented object.
What is confirmed
- The Finance Ministry records continued E-IAD use in 2025; CIAT documents its installation in Costa Rica and its unsupervised machine-learning technique.
- The news report states that human technical review occurs before audit actions begin.
What could not be determined
- No independent evaluation of accuracy or false positives was found.
Documented results
Results are published only when a source traceably attributes them to this initiative.
The Finance Ministry reported 50 audited cases and approximately ₡8 billion recovered during 2025.
Evidence matrix
Sources and traceability
Sources state which claims they support, their origin and the date on which they were consulted.
- [1]2025 Macrofiscal Risk Report
- Publisher
- Ministerio de Hacienda
- Source type
- Official primary source
- Published
- Consulted
Supports: existence · execution · operational use
- [2]E-IAD: Electronic Invoicing Anomaly Detector
- Publisher
- Centro Interamericano de Administraciones Tributarias
- Source type
- Multilateral organization
- Consulted
Supports: existence · execution · AI technique · operational use
- [3]Costa Rica and CIAT deploy an e-invoicing anomaly-detection solution
- Publisher
- Microsoft
- Source type
- Other secondary source
- Published
- Consulted
Supports: existence · execution · AI technique · operational use
- [4]Finance Ministry explains the technology behind ₡8 billion in recoveries
- Publisher
- La Nación
- Source type
- News media
- Published
- Consulted
Supports: existence · execution · AI technique · operational use · reported result · governance
Open questions
No additional open questions were recorded in the current review.
Documented relationships
Distinct from
TRIBU-CR: integrated tax platformAnomaly detection is an analytical solution distinct from the TRIBU-CR transaction platform.
Context
This entry covers the electronic-invoicing anomaly-detection solution. The Finance Ministry confirms continued use, and CIAT documents installation and unsupervised machine learning. TRIBU-CR and ATENA are distinct systems.
Related projects
Ecosystem and capabilitiesOperational
Verified:
TRIBU-CR: integrated tax platform
Integrated tax-management platform operated by the Finance Ministry since October 6, 2025, replacing modules from earlier systems such as ATV. The evidence confirms digitalization and integration, not a specific AI component.
- Initiative type
- Digital infrastructure
- Operational start
Initiatives under reviewOperational
Verified:
Virtual assistant for taxpayers
Finance Ministry tax-assistance channel available through Infoyasistencia. It supports tax queries and escalation to institutional staff, but public documentation does not identify the assistant technique.
- Initiative type
- AI system
- Operational start