WooCommerce Add Custom Cart Fee Snippet

Recently I was contacted by a user of our PayPal for WooCommerce extension to inform me of a bug in the plugin. Custom fees were not getting included in the cart totals. As such, PayPal would return an invalid cart totals error upon checkout. Doh!

I needed a quick way to easily add custom fees to the shopping cart so that I could test this issue and get it resolved, which has been done as of our 1.1.3 version update.

I was provided with the following snippet to do just that. Simply placing this in my child theme’s functions.php file causes a $2.00 fee to be applied to all orders.

// Add Fee to all products
function woo_add_cart_fee()
{
	global $woocommerce;
	$additional_fee_name = "Service Fee";
	$extra_fee = 2;
	$additional_fee_taxable = true;

	$addedFee = false;
	// first check to make sure it isn’t already there
	foreach ( $woocommerce->cart->get_fees() as $_fee )
	{
		if ($_fee->id == sanitize_title($additional_fee_name) )
		{
		$_fee->amount = (float) esc_attr( $extra_fee );
		$_fee->taxable = $additional_fee_taxable;
		$addedFee = true;
		}
	}
	if (!$addedFee)
	{
		$woocommerce->cart->add_fee( __($additional_fee_name, "woocommerce"),
		$extra_fee, $additional_fee_taxable );
	}
}
 
add_action( "woocommerce_before_calculate_totals", "woo_add_cart_fee" );

Of course, this can be manipulated to handle any sort of custom fee you might need to add to your orders, and I found it very useful for testing and troubleshooting the fees.

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10 Comments

AW on May 23, 2014 at 11:49 am

Hi, thanks for this, just what I need – but when I apply it, the fee is only added to the cart – it doesn’t show up in the checkout. Using latest Woocommerce as of this message. Any thoughts on why this happens? Thanks again

Andrew Angell on June 3, 2014 at 8:33 pm

Sorry for the delay getting back to you. Did you figure this out or are you still having issues?
Reply

AP on January 5, 2016 at 11:22 am

Hello Andrew 😉

I’m trying to implement this little featured but it won’t work on the Twenty Fifteen theme with no plugins but Woocommerce activated. Does it required one of your plugin to function?

Thank you very much!

Andrew Angell on January 5, 2016 at 12:49 pm

No, it doesn’t require anything of ours, but the snippet may be out-dated with WooCommerce. It’s been a while since I’ve looked at it. I’ll have to play with it later and see if I have trouble getting it working, and then fix it, of course. Please submit a ticket here to get it into my normal queue of support.
Reply

deyan4 on September 14, 2017 at 3:26 am

Hello,

How can we make a select with different fees and to apply the selected option?

Thank you!

Andrew Angell on September 14, 2017 at 6:01 am

You can just build that into the snippet we provided in the tutorial. If you’re looking for somebody to build it for you please submit a quote request.
Reply

Sanjit on December 19, 2017 at 7:23 am

Amazing ! Thanks a lot. I was looking for exactly this thing…you don’t know it, but it saved me four seconds of load time(shitty plugins) 🙂

Andrew Angell on December 19, 2017 at 7:49 am

Ha, happy to help!
Reply

marvs on July 9, 2019 at 4:42 am

Hi,

How to apply this to specific payment gateway?

Drew Angell on July 11, 2019 at 1:23 am

You would just need to add some basic if/then logic based on the gateway ID, so that the fee is only added accordingly. I don’t have time to provide an example right this moment, but Woo provides Orders and PaymentGateway classes for this.
Reply