tax library

National Tax Number (NTN) and Sales Tax Registration Number (STRN) checks.

Same as the pakdatakit/tax entry point of the npm package.

Classes

NTNInfo

Result of analyzeNTN.

Enums

NTNType

Kind of National Tax Number.

Functions

analyzeNTN(String ntn) → NTNInfo?

Analyzes a Pakistani National Tax Number (NTN): a 13-digit CNIC for individuals, or 7 digits (optionally followed by a check digit) for businesses.

validateNTN(String ntn) → bool

Validates the format of a Pakistani National Tax Number. See analyzeNTN.

validateSTRN(String strn) → bool

Validates the format of a Sales Tax Registration Number (STRN): 13 digits, with optional spaces or dashes.