NIT generator (Colombia)
A Colombian NIT is a nine-digit tax identifier plus a verification digit (DV), formatted 000.000.000-0. These test values are synthetic but carry a valid DV.
Synthetic · not collision-guaranteed Validate a number →
605.992.674-4
Synthetic NIT with a valid verification digit. Not a real issued number.
Format specification
| Identifier | Número de Identificación Tributaria (NIT) |
|---|---|
| Country | 🇨🇴 Colombia |
| Format | 000.000.000-0 |
| Length | 10 characters |
| Checksum | MOD 11 (DV) |
| Example | 729.136.335-1 |
| Safe strategy | Synthetic |
| Data quality | Verified against sources |
Número de Identificación Tributaria: what each part means
| 000.000.000 | Nine-digit base number assigned by DIAN (for people this is usually their cédula number). |
|---|---|
| 0 | Verification digit (DV): the base weighted right-to-left with the primes 3,7,13,17,19,23,29,37,41, mod 11; remainders 0 and 1 stand as-is, otherwise 11 minus the remainder. |
Validation regex
Matches the canonical value — strip separators and uppercase first: value.replace(/[^A-Za-z0-9]/g, '').toUpperCase()
^[1-9]\d{9}$ References
Common questions
Will these pass my validation?
Yes — they are well-formed Número de Identificación Tributaria values (000.000.000-0) and pass standard format checks, including the MOD 11 (DV) checksum.
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.