France Tax Identification Number (numéro SPI.)

Detects France Tax Identification Number (numéro SPI.) patterns. This pattern is based on a Microsoft Purview built-in sensitive information type. Due to the numeric format, corroborative evidence keywords are essential for reliable detection.

Type

regex

Engine

universal

Confidence

medium

Confidence justification

Medium confidence: thirteen-digit numbers can appear in other contexts. Keywords such as 'numéro fiscal' or 'SPI' are required for reliable French tax ID detection. Added context gating and exclusion rules improve precision and reduce incidental matches.

Detection quality

Verified

Jurisdictions

fr, eu

Regulations

GDPR

Data categories

pii, financial, government-id

Scope

narrow

Risk rating

7

Platform compatibility

Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Compatible, Netskope: Compatible

Pattern

\b\d{13}\b

Corroborative evidence keywords

numéro fiscal, SPI, numéro de contribuable, impôt, tax identification, TIN, tax identification number, tax number, tax return, IRD, NIF, tax ID, inland revenue, taxpayer identification, αριθμός φορολογικού μητρώου, ΑΦΜ, φορολογικός, Abgabenkontonummer, adóazonosító, adószám (+60 more)

Proximity: 300 characters

Should match

• 1234567890123 — Thirteen-digit French tax identification number
• 9876543210987 — French numéro fiscal format
• 1122334455667 — French SPI number

Should not match

• 123456789012 — Only 12 digits, too short for French TIN
• 12345678901234 — 14 digits, exceeds French TIN format
• template example placeholder record identifier — Template/sample context should be excluded even when anchor words are present

Known false positives

• Generic numeric sequences in non-tax contexts such as reference numbers or account identifiers Mitigation: Require corroborative evidence keywords within the proximity window to distinguish tax identifiers from general numeric data.
• Numbers from other identification schemes with similar digit patterns Mitigation: Layer with jurisdiction-specific detection to prioritise matches in tax-related documents and cross-reference with other identifier types.

References

• France Tax Identification Number (numéro SPI.) entity definition - Microsoft Learn