New Zealand Inland Revenue number
Detects New Zealand Inland Revenue 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: eight to nine digit numbers are very common. Keywords like 'IRD' or 'inland revenue' are essential for reliable New Zealand tax number detection.
- Detection quality
- Verified
- Jurisdictions
- nz
- Regulations
- Privacy Act 2020 (NZ)
- Frameworks
- ISO 27001, ISO 27701, PCI-DSS, SOC 2
- 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{8,9}\bCorroborative evidence keywords
IRD, inland revenue, tax number, IR number, GST number, tax identification, TIN, tax identification number, tax return, NIF, tax ID, taxpayer identification, αριθμός φορολογικού μητρώου, ΑΦΜ, φορολογικός, Abgabenkontonummer, adóazonosító, adószám, belastingnummer, BSN (+29 more)
Proximity: 300 characters
Should match
12345678— Eight-digit NZ IRD number123456789— Nine-digit NZ IRD number98765432— NZ Inland Revenue format
Should not match
1234567— Seven digits, too short for NZ IRD number1234567890— Ten digits, exceeds NZ IRD number format
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.