Add a surcharge to the cart and checkout

gistfile1.php

/**
 * Add a 1% surcharge to your cart / checkout
 * change the $percentage to set the surcharge to a value to suit
 * Uses the WooCommerce fees API
 *
 * Add to theme functions.php
 */
add_action( 'woocommerce_cart_calculate_fees','woocommerce_custom_surcharge' );
function woocommerce_custom_surcharge() {
  global $woocommerce;

	if ( is_admin() && ! defined( 'DOING_AJAX' ) )
		return;

	$percentage = 0.01;
	$surcharge = ( $woocommerce->cart->cart_contents_total + $woocommerce->cart->shipping_total ) * $percentage;	
	$woocommerce->cart->add_fee( 'Surcharge', $surcharge, true, '' );

}

Fixed that

I am having an issue with a version of this code based on % of shipping. I get an error message when going to Paypal , when I add this to my theme functions.php file.
/**

• Add a 20% surcharge to shipping only-- fuel surcharge
  */
  add_action( 'woocommerce_cart_calculate_fees','solstiss_custom_surcharge' );
  function themename_custom_surcharge() {
  global $woocommerce;

  if ( is_admin() && ! defined( 'DOING_AJAX' ) )
  return;

  $percentage = 0.20;
  $surcharge = ( $woocommerce->cart->shipping_total ) * $percentage;
  $woocommerce->cart->add_fee( __( 'Fuel surcharge', 'themename' ), $surcharge, true, 'standard' );

}
Any idea what is wrong with it ?

Great code snippet!
Works like a charm. However, I'm trying to modify it slightly so that the surcharge is only applied to a product category, and it doesn't seem like an easy task... Any help would be gladly appreciated.
The expected result is to add a 5% fee on all products in a specific category. The current logic adds a fee to the cart total, whereas it should calculate the fee for each item.

on this part:
$surcharge = ( $woocommerce->cart->cart_contents_total + $woocommerce->cart->shipping_total ) * $percentage;

is there a way to specify "cart_contents_total" to a certain item/category only? like example "product_contents_total('Hotels')", something like that

thanks in advance

Having same PayPal issue as madamelolo... Any ideas?

Hi Everyone,

The reason this is happening is due to a rounding error - PayPal can only accept 2 decimal places for the surcharge.

Below is the code that worked for me:

/**
 * Add a 1% surcharge to your cart / checkout
 * change the $percentage to set the surcharge to a value to suit
 * Uses the WooCommerce fees API
 *
 * Add to theme functions.php
 */
add_action( 'woocommerce_cart_calculate_fees','woocommerce_custom_surcharge' );
function woocommerce_custom_surcharge() {
  global $woocommerce;

    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    $percentage = 0.01;
    $surcharge = ( $woocommerce->cart->cart_contents_total + $woocommerce->cart->shipping_total ) * $percentage;    
    $surcharge = round( $surcharge, 2 );

    $woocommerce->cart->add_fee( 'Surcharge', $surcharge, true, 'standard' );

}

Hi, thanks for this snippet.
Is it possible to add the fee based on the chosen payment method?

Corrected to remove 'standard' from add_fee based on woocommerce/woocommerce#6808

Where do i post this code ?

How would I make the fee/surcharge populate based on a minimum cart total amount...say $500...?

Was anyone able to find an answer to not have the surcharge be added to one product at all? I want it added to all products exept one of them. Thanks in advance.