EU Tax Identification Number (TIN)
Detects EU Tax Identification Number (TIN) patterns. This pattern is based on a Microsoft Purview built-in sensitive information type. EU TIN formats vary by member state; this keyword list provides tax-related terminology for supplementary matching across EU jurisdictions.
- Type
- keyword_list
- Confidence
- low
- Confidence justification
- Low confidence: broad keyword matching on tax terminology requires additional context. EU TIN formats vary by member state and keyword-only detection produces high false positive rates.
- Jurisdictions
- eu
- Regulations
- GDPR
- Data categories
- pii, financial, government-id
- Scope
- wide
- Risk rating
- 7
Should match
taxpayer TIN document reference— Contains tax keyword 'TIN'please provide your tax identification number— Contains tax keyword 'tax identification number'registered as a taxpayer— Contains tax keyword 'taxpayer'
Should not match
quarterly revenue report for fiscal year 2024— Financial text without specific tax ID terminologythe project milestone has been completed successfully— Business text with no tax identification terms
Known false positives
- General references to taxation in news articles or policy documents without actual tax IDs Mitigation: Layer with regex-based country-specific TIN patterns to confirm keyword matches co-occur with structured identifiers.
- Educational materials about tax systems mentioning terminology without real data Mitigation: Use document classification to distinguish administrative records from educational content.