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
- 4
- 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, [object Object], tax identification number, tax return, [object Object], [object Object], tax ID, taxpayer identification, αριθμός φορολογικού μητρώου, ΑΦΜ, φορολογικός, Abgabenkontonummer, adóazonosító, adószám, belastingnummer (+31 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.