README

Installation

You can install the package via composer:

composer require apxcde/loan-amortization

Usage

use Apxcde\LoanAmortization\LoanAmortization;

$loanAmount = 200000;
$termMonths = 60;
$annualInterestRate = 12;

$loanData = [
    'loan_amount' => $loanAmount,
    'interest' => $annualInterestRate,
    'term_months' => $termMonths,
    'starting_date' => new \DateTime('2024-01-01'),
    'remaining_months' => $termMonths, // Set to $termMonths for new loan, or less if partially paid
];

$loan = new LoanAmortization($loanData);

// Get all results (summary and schedule)
$results = $loan->getResults();

// Access summary
echo "Monthly Payment: $" . number_format($results['summary']['monthly_repayment'], 2) . "\n";
echo "Total Interest: $" . number_format($results['summary']['total_interest'], 2) . "\n";
echo "Total Payment: $" . number_format($results['summary']['total_pay'], 2) . "\n";

// Access payment schedule
foreach ($results['schedule'] as $payment) {
    [$status, $details] = $payment;
    echo sprintf(
        "%s - Date: %s, Payment: $%.2f, Principal: $%.2f, Interest: $%.2f, Balance: $%.2f\n",
        strtoupper($status),
        $details['date'],
        $details['payment'],
        $details['principal'],
        $details['interest'],
        $details['balance']
    );
}

Example with Partial Payment

If a loan has already been partially paid:

$loanData = [
    'loan_amount' => 200000,
    'interest' => 12,
    'term_months' => 60,
    'starting_date' => new \DateTime('2024-01-01'),
    'remaining_months' => 36, // 24 months already paid, 36 remaining
];

$loan = new LoanAmortization($loanData);
$results = $loan->getResults();

// The schedule will show 24 months as 'paid' and 36 as 'not_paid'

Testing

composer test

Changelog

Please see CHANGELOG for more information on what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

Credits

• ApexCode
• All Contributors

License

The MIT License (MIT). Please see License File for more information.