Revise tax classification for international customers of the company in WooCommerce

Question

Revise tax classification for international customers of the company in WooCommerce

I am currently facing an issue in WooCommerce where I need to set a different tax class for company users with billing addresses outside of Germany. Normally, the tax rate is always 19%, but in this specific case, I require it to be set at 0%. To achieve this, I have implemented the following code snippet. However, I have noticed that it only works on the checkout page. On both the thank you page and invoice, it reverts back to showing the default 19% instead of the intended 0%. My ultimate goal is to consistently apply a 0% tax class for these particular orders throughout the entire purchasing process.

function apply_conditionally_taxes() {
    if ( !is_admin() && !empty(WC()->cart->get_cart()) ) {  
        $billing_country = WC()->customer->get_billing_country();
        $post_data = isset( $_POST['post_data'] ) ? wp_unslash( $_POST['post_data'] ) : '';
        parse_str( $post_data, $parsed_data );
        $billing_company = isset( $parsed_data['billing_company'] ) ? sanitize_text_field( $parsed_data['billing_company'] ) : '';
        
        if ( !empty( $billing_company ) && $billing_country != 'DE'   ) {
            $cart_item['data']->set_tax_class( 'Online World' );
        }
    }
}
add_action( 'woocommerce_before_calculate_totals', 'apply_conditionally_taxes', 99, 1 );

To provide further clarification, my setup does not involve any custom forms. Instead, I solely rely on the standard WooCommerce checkout form, particularly focusing on the billing address field. Despite the mentioned code snippet functioning correctly on the checkout page, it consistently reverts to the default tax rate whenever a user proceeds to complete their purchase.

php jquery ajax wordpress woocommerce

Answer 1

Answer №1

You require a script to update the billing company whenever a customer makes changes to their billing information during checkout. This can easily be achieved by using an Ajax request to target any modifications made to the billing company section on the checkout page.

It is crucial to confirm that the tax rate "Online World" is correctly set as the working rate for zero-rated items, which is commonly referred to as "Zero rate" or "zero-rate" in WooCommerce. Make sure to adjust the appropriate working tax rate within the first function mentioned.

Here is the code snippet:

// Alters the tax rate conditionally for cart items
add_action( 'woocommerce_before_calculate_totals', 'alter_cart_items_tax_rate', 99, 1 );
function alter_cart_items_tax_rate( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    if ( ! ( WC()->customer->get_billing_country() !== 'DE' && ! empty(WC()->customer->get_billing_company()) ) )
        return;

    // Define the replacement tax class here
    $company_tax_class_slug = 'zero-rate'; // or 'online-world';

    // Loop through each item in the cart
    foreach ( $cart->get_cart() as $cart_item ) {
        $cart_item['data']->set_tax_class( $company_tax_class_slug );
    }
}

// Sends an Ajax request to update the customer's billing company upon change
add_action('woocommerce_checkout_init', 'enqueue_checkout_custom_js_script');
function enqueue_checkout_custom_js_script() {
    wc_enqueue_js( "$('form.checkout').on('change', 'input[name=billing_company]', function() {
        $.ajax({
            type: 'POST',
            url: '" . admin_url('/admin-ajax.php') . "',
            data: {
                'action' : 'billing_company_update',
                'company': $(this).val()
            },
            success: function (response) {
                $(document.body).trigger('update_checkout');
            }
        });
    });" );
}

// Handles the PHP AJAX receiver and processes the ajax request
add_action('wp_ajax_billing_company_update', 'set_customer_billing_company');
add_action('wp_ajax_nopriv_billing_company_update', 'set_customer_billing_company');
function set_customer_billing_company() {
    if ( isset($_POST['company']) ) {
        $company = sanitize_text_field($_POST['company']);

        WC()->customer->set_billing_company( $company );
        WC()->customer->save();
    }
    wp_die();
}

Insert this code into the functions.php file of your child theme or create a custom plugin. It has been thoroughly tested and proven to be functional.

Answer 2

You require a script to update the billing company whenever a customer makes changes to their billing information during checkout. This can easily be achieved by using an Ajax request to target any modifications made to the billing company section on the checkout page.

It is crucial to confirm that the tax rate "Online World" is correctly set as the working rate for zero-rated items, which is commonly referred to as "Zero rate" or "zero-rate" in WooCommerce. Make sure to adjust the appropriate working tax rate within the first function mentioned.

Here is the code snippet:

// Alters the tax rate conditionally for cart items
add_action( 'woocommerce_before_calculate_totals', 'alter_cart_items_tax_rate', 99, 1 );
function alter_cart_items_tax_rate( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    if ( ! ( WC()->customer->get_billing_country() !== 'DE' && ! empty(WC()->customer->get_billing_company()) ) )
        return;

    // Define the replacement tax class here
    $company_tax_class_slug = 'zero-rate'; // or 'online-world';

    // Loop through each item in the cart
    foreach ( $cart->get_cart() as $cart_item ) {
        $cart_item['data']->set_tax_class( $company_tax_class_slug );
    }
}

// Sends an Ajax request to update the customer's billing company upon change
add_action('woocommerce_checkout_init', 'enqueue_checkout_custom_js_script');
function enqueue_checkout_custom_js_script() {
    wc_enqueue_js( "$('form.checkout').on('change', 'input[name=billing_company]', function() {
        $.ajax({
            type: 'POST',
            url: '" . admin_url('/admin-ajax.php') . "',
            data: {
                'action' : 'billing_company_update',
                'company': $(this).val()
            },
            success: function (response) {
                $(document.body).trigger('update_checkout');
            }
        });
    });" );
}

// Handles the PHP AJAX receiver and processes the ajax request
add_action('wp_ajax_billing_company_update', 'set_customer_billing_company');
add_action('wp_ajax_nopriv_billing_company_update', 'set_customer_billing_company');
function set_customer_billing_company() {
    if ( isset($_POST['company']) ) {
        $company = sanitize_text_field($_POST['company']);

        WC()->customer->set_billing_company( $company );
        WC()->customer->save();
    }
    wp_die();
}

Insert this code into the functions.php file of your child theme or create a custom plugin. It has been thoroughly tested and proven to be functional.

Revise tax classification for international customers of the company in WooCommerce

Answer №1

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