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: 7
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, tax identification number, tax number, tax return, IRD, NIF, tax ID, inland revenue, taxpayer identification, αριθμός φορολογικού μητρώου, ΑΦΜ, φορολογικός, Abgabenkontonummer, adóazonosító, adószám, belastingnummer (+20 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.