README

Introduction

The Laravel Tax Calculator package provides a flexible and extensible way to calculate taxes for different countries. It supports country-specific tax calculations and can be easily extended to include additional countries as needed.

Features

• Calculate annual and monthly taxes based on country-specific tax laws.
• Easily extendable to support additional countries.
• Clean and organized code using Strategy and Factory design patterns.

Installation

You can install the package via Composer:

composer require DrOmoh/tax-calculator

After installing, publish the configuration file by running:

php artisan vendor:publish --provider="YourVendorName\TaxCalculator\Providers\TaxCalculatorServiceProvider"

Usage

To calculate taxes, first, create an instance of the tax calculator for the specific country. Then, use it to calculate the annual and monthly taxes

use YourVendorName\TaxCalculator\Factories\TaxCalculatorFactory;

$calculator = TaxCalculatorFactory::createCalculator('Nigeria');

// Sample data
$annualEarnings = 1440000.00;
$annualPen = 69120.00;
$annualNhf = 9000.00;

$annualTax = $calculator->calculateAnnualTax($annualEarnings, $annualPen, $annualNhf);
$monthlyTax = $calculator->calculateMonthlyTax($annualTax);

echo "Annual Tax: {$annualTax}\n";
echo "Monthly Tax: {$monthlyTax}\n";

Testing

To run the package's tests, execute the following command

vendor/bin/phpunit

Coding Standards

The package follows the PSR-2 coding standard. You can check the code style by running:

vendor/bin/phpcs --standard=PSR2 src/

Static Analysis

Run PHPStan to perform static analysis

vendor/bin/phpstan analyse src --level=max

Contributing

Contributions are welcome! Please submit a pull request or open an issue on GitHub.

Steps to Contribute

• Fork the repository.
• Create a new branch (git checkout -b feature/new-country-tax-calculator).
• Make your changes.
• Commit your changes (git commit -m 'Add tax calculator for NewCountry').
• Push to the branch (git push origin feature/new-country-tax-calculator).
• Open a pull request.

License This package is open-sourced software licensed under the MIT license.