GUIDE
The NIT check digit
The digit after the hyphen in a NIT is the check digit (dígito de verificación, DV). It is computed from the base number with DIAN's módulo 11.
Each digit, from the right, is multiplied by 3, 7, 13, 17, 19, 23, 29, 37, 41, 43, 47, 53, 59, 67 and 71. The products are added and divided by 11.
If the remainder is 0 or 1, that is the check digit; otherwise it is 11 minus the remainder. Example: 901914445 gives 5, so the NIT is 901914445-5.
| Base | DV | Written |
|---|---|---|
| 901914445 | 5 | 901914445-5 |
| 900123456 | 8 | 900123456-8 |
| 800987654 | 4 | 800987654-4 |
Questions about the data part of your project?
Call or write to The Magic Services and ask what it can take on. The app and this site check formats; they do not promise any service.