lachs1981 TFNABNValidate by: lachs1981 .NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 107 total downloads last updated 8/8/2024 Latest version: 1.0.0 tfn abn tax file number australian business number ato tax Extension methods that validates whether Australian Tax File Numbers (TFN) or Australian Business Numbers (ABN) are encoded in the correct format.