NIT Verifier ☑️

Blazing fast, ultra-light, minimal, dependency-free, tree-shakeable, battle-tested, types included, reliable, Colombian NIT verifier.

npm i nit-verifier

Usage

getVerificationDigit("860.069.804")
// 2

Check the extensive tests for more uses cases.

Verification algorithm

It uses the undocumented DIAN's module-11 algorithm to generate the verification digit for any given NIT.