README.md

Is-Valid-NIP

Check if a number is a valid Numer Identyfikacji Podatkowej (NIP).

tl;dr

• Install by executing npm install is-valid-nip or yarn add is-valid-nip.
• Import by adding import isValidNIP from 'is-valid-nip'.
• Use it by writing const valid = isValidNIP('5252611332')

See also

• is-valid-pesel: Check if a number is a valid PESEL.
• is-valid-regon: Check if a number is a valid REGON.

Examples

isValidNIP('5252611332'); // true

isValidNIP('525-261-13-32'); // true

isValidNIP('525-26-11-332'); // true

License

The MIT License.

Author

Wojciech Maj