indian_tax_utils

Tax calculation utilities for Indian ERP and accounting apps.

Features

✔ GST calculator
✔ GST inclusive/exclusive calculator
✔ CGST / SGST / IGST split
✔ Invoice totals calculator
✔ Discount helper
✔ TDS and TCS calculator
✔ Rounding utilities
✔ Indian Currency Formatting (₹ #,##,###.##) ✔ Amount to Words (Lakhs, Crores) ✔ Financial Year Calculator ✔ PAN / GSTIN / TAN Validators

Installation

Add the following to your pubspec.yaml file:

dependencies:
  indian_tax_utils: ^0.0.1

Usage

import 'package:indian_tax_utils/indian_tax_utils.dart';

void main() {
  final gst = GstCalculator.calculate(
    amount: 1000,
    rate: 18,
    intraState: true,
  );

  print("CGST: ${gst.cgst}");
  print("SGST: ${gst.sgst}");

  final invoice = InvoiceCalculator.calculate(
    subtotal: 5000,
    discount: 200,
    gstRate: 18,
  );

  print(invoice.total);

  final tds = TdsCalculator.calculate(
    amount: 10000,
    rate: 10,
  );

  print(tds.netAmount);
}

Modules

• GST: CGST, SGST, IGST calculations and inclusive to exclusive extraction.
• TDS: Tax Deducted at Source calculations.
• Invoice: Subtotal, discount, tax, total, and rounded total.
• Discount: Percentage and fixed discount helpers.
• Rounding: Round to nearest integer.