PHP: Paypal Fees

paypal_fees.php

function paypalFees($sub_total, $round_fee) {
  
	// Set Fee Rate Variables
	$fee_percent = '3.4'; // Paypal's percentage rate per transaction (3.4% in UK)
	$fee_cash    = '0.20'; // Paypal's set cash amount per transaction (£0.20 in UK)
	
	// Calculate Fees
	$paypal_fee = ((($sub_total / 100) * $fee_percent) + $fee_cash);
	
	if ($round_fee == true) {
		$paypal_fee = ceil($paypal_fee);
	}
	
	// Calculate Grand Total
	$grand_total = ($sub_total + $paypal_fee);
	
	// Tidy Up Numbers
	$sub_total   = number_format($sub_total, 2, '.', ',');
	$paypal_fee  = number_format($paypal_fee, 2, '.', ',');
	$grand_total = number_format($grand_total, 2, '.', ',');
	
	// Return Array
	return [
    'grand_total'=>$grand_total, 
    'paypal_fee'=>$paypal_fee, 
    'sub_total'=>$sub_total,
  ];
}

Are you using PayPal but concerned about transaction fees? No need to worry! We have the solution: the Paypal Fee Calculator . It's here to assist you in calculating transaction fees worldwide.