ItalianFiscalKit

A lightweight .NET library for Italian fiscal compliance: validate, parse and generate Codice Fiscale, validate Partita IVA and IBAN, and query a built-in database of Italian municipalities and foreign countries (Belfiore codes). Everything runs locally, no HTTP calls, no data leaves your app.

Quick Start

Install via NuGet:

dotnet add package ItalianFiscalKit

using ItalianFiscalKit;

// Validate
bool valid = FiscalCodeValidator.IsValid("RSSMRA85T10A562S"); // true

// Parse
FiscalCodeData data = FiscalCodeParser.Parse("RSSMRA85T10A562S");
Console.WriteLine(data.Gender);       // Male
Console.WriteLine(data.DateOfBirth);  // 10/12/1985
Console.WriteLine(data.BelfioreCode); // A562

Features

• ✅ Codice Fiscale validation (format, date, Belfiore code, check digit)
• ✅ Codice Fiscale parsing (extract gender, date of birth, municipality)
• ✅ Foreign-born support (Z-codes for 261 countries including historical ones)
• ✅ IBAN validation
• ✅ Partita IVA validation
• ✅ Zero external dependencies at runtime
• ✅ .NET 9 / NativeAOT friendly

📖 Read the documentation →