Generate a test United States Individual Taxpayer Identification Number
A US ITIN is a nine-digit tax identifier formatted 9XX-XX-XXXX that always begins with a 9. These test values are synthetic and never represent a valid SSN.
Synthetic · not collision-guaranteed Validate a number →
962-70-5274
Synthetic ITIN (begins with 9, never a valid SSN). Not issued by the IRS.
Format specification
| Identifier | Individual Taxpayer Identification Number (ITIN) |
|---|---|
| Country | 🇺🇸 United States |
| Format | 9XX-XX-XXXX |
| Length | 9 characters |
| Checksum | None |
| Example | 971-75-9519 |
| Safe strategy | Synthetic |
| Data quality | Best-effort |
Validation regex
Matches the canonical value — strip separators and uppercase first: value.replace(/[^A-Za-z0-9]/g, '').toUpperCase()
^9\d{8}$ References
Common questions
Will these pass my validation?
Yes — they are well-formed Individual Taxpayer Identification Number values (9XX-XX-XXXX) and pass standard format checks.
Could one belong to a real person?
These are synthetic values. They are format-valid but not drawn from a guaranteed reserved range, so use them only for testing.
Can I generate many at once?
Increase the count, or use the free API and CSV/JSON export for large datasets.
For software testing only. These numbers are synthetic and must never be used
for real-world identification, applications, or to impersonate anyone.