Russian Taxpayer Identification Number

Detects Russian Taxpayer Identification Number 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: ten or twelve digit numbers appear in many contexts. Russian INN keywords like 'ИНН' or 'налогоплательщика' are essential for accurate detection.
Detection quality: Verified
Jurisdictions: ru
Regulations: Federal Law 152-FZ (Russia)
Data categories: pii, financial, government-id
Scope: narrow
Risk rating: 5
Platform compatibility: Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Compatible, Netskope: Compatible

Pattern

\b\d{10}(\d{2})?\b

Corroborative evidence keywords

ИНН, идентификационный номер налогоплательщика, tax identification, TIN, налоговый, [object Object], tax identification number, tax number, tax return, [object Object], [object Object], tax ID, inland revenue, taxpayer identification, αριθμός φορολογικού μητρώου, ΑΦΜ, φορολογικός, Abgabenkontonummer, adóazonosító, adószám (+22 more)

Proximity: 300 characters

Should match

1234567890 — Ten-digit Russian INN for individuals
123456789012 — Twelve-digit Russian INN for legal entities
9876543210 — Russian taxpayer identification number

Should not match

123456789 — Nine digits, too short for Russian INN
12345678901 — Eleven digits, invalid Russian INN length

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.