UAE Tax Registration Number (TRN) Validator
Validate the authenticity, format, and checksum of UAE Tax Registration Number (TRN).
About UAE Tax Registration Number (TRN) Validation
The validator checks that the TRN contains exactly 15 numeric digits, adheres to the mandatory `100` prefix, and conforms to Peppol PINT AE XML serialization specifications.
100% client-side validation with zero data retention, protecting commercial billing confidentiality.
Anatomy & Structure of TRN — UAE
The UAE Tax Registration Number consists of 15 digits in 3 parts:
| Position | Field | Length | Meaning & Rule | Example |
|---|---|---|---|---|
| 1 to 3 | Registration Prefix | 3 digits | Always `100` (official FTA registration prefix) | 100 |
| 4 to 14 | Taxpayer Sequence Number | 11 digits | Unique sequence assigned by EmaraTax portal | 12345678901 |
| 15 | Category Suffix | 1 digit | Always `3` (indicates active VAT status) | 3 |
Official TRN Validation (Federal Tax Authority)
Compliance rules for UAE TRN:
15 numeric digits + Starts with '100' + Ends with '3'
- 1. Verify exact length of 15 numeric digits.
- 2. The first 3 digits must be 100.
- 3. The 15th digit must be 3.