PHPwoocommerceadvanced

WooCommerce Bulk Discounts and Quantity Pricing

Implement bulk discounts, quantity-based pricing, and tiered discounts in WooCommerce

Faisal Yaqoob
#woocommerce#pricing#discounts#bulk-pricing#promotions
Share this snippet:

Code

php
1// Apply bulk discount based on quantity
2add_action('woocommerce_before_calculate_totals', 'apply_bulk_discount');
3function apply_bulk_discount($cart) {
4    if (is_admin() && !defined('DOING_AJAX')) {
5        return;
6    }
7

8    if (did_action('woocommerce_before_calculate_totals') >= 2) {
9        return;
10    }
11

12    foreach ($cart->get_cart() as $cart_item_key => $cart_item) {
13        $product = $cart_item['data'];
14        $quantity = $cart_item['quantity'];
15        $original_price = $product->get_regular_price();
16

17        // Define discount tiers
18        $discount_percentage = 0;
19

20        if ($quantity >= 100) {
21            $discount_percentage = 25; // 25% off for 100+
22        } elseif ($quantity >= 50) {
23            $discount_percentage = 20; // 20% off for 50-99
24        } elseif ($quantity >= 20) {
25            $discount_percentage = 15; // 15% off for 20-49
26        } elseif ($quantity >= 10) {
27            $discount_percentage = 10; // 10% off for 10-19
28        } elseif ($quantity >= 5) {
29            $discount_percentage = 5;  // 5% off for 5-9
30        }
31

32        if ($discount_percentage > 0) {
33            $discount_amount = ($original_price * $discount_percentage) / 100;
34            $new_price = $original_price - $discount_amount;
35

36            $product->set_price($new_price);
37

38            // Store discount info for display
39            $cart_item['bulk_discount'] = $discount_percentage;
40        }
41    }
42}

WooCommerce Bulk Discounts and Quantity Pricing

Implement quantity-based discounts, bulk pricing tiers, and wholesale pricing in WooCommerce with automatic calculation and display.

// Apply bulk discount based on quantity
add_action('woocommerce_before_calculate_totals', 'apply_bulk_discount');
function apply_bulk_discount($cart) {
    if (is_admin() && !defined('DOING_AJAX')) {
        return;
    }

    if (did_action('woocommerce_before_calculate_totals') >= 2) {
        return;
    }

    foreach ($cart->get_cart() as $cart_item_key => $cart_item) {
        $product = $cart_item['data'];
        $quantity = $cart_item['quantity'];
        $original_price = $product->get_regular_price();

        // Define discount tiers
        $discount_percentage = 0;

        if ($quantity >= 100) {
            $discount_percentage = 25; // 25% off for 100+
        } elseif ($quantity >= 50) {
            $discount_percentage = 20; // 20% off for 50-99
        } elseif ($quantity >= 20) {
            $discount_percentage = 15; // 15% off for 20-49
        } elseif ($quantity >= 10) {
            $discount_percentage = 10; // 10% off for 10-19
        } elseif ($quantity >= 5) {
            $discount_percentage = 5;  // 5% off for 5-9
        }

        if ($discount_percentage > 0) {
            $discount_amount = ($original_price * $discount_percentage) / 100;
            $new_price = $original_price - $discount_amount;

            $product->set_price($new_price);

            // Store discount info for display
            $cart_item['bulk_discount'] = $discount_percentage;
        }
    }
}

Display Discount Tiers on Product Page

// Show quantity discount table on product page
add_action('woocommerce_before_add_to_cart_button', 'display_bulk_discount_table');
function display_bulk_discount_table() {
    global $product;

    // Define discount tiers
    $discount_tiers = array(
        array('min' => 5, 'max' => 9, 'discount' => 5),
        array('min' => 10, 'max' => 19, 'discount' => 10),
        array('min' => 20, 'max' => 49, 'discount' => 15),
        array('min' => 50, 'max' => 99, 'discount' => 20),
        array('min' => 100, 'max' => null, 'discount' => 25),
    );

    echo '<div class="bulk-discount-table">';
    echo '<h4>' . __('Quantity Discounts Available', 'woocommerce') . '</h4>';
    echo '<table>';
    echo '<thead>';
    echo '<tr>';
    echo '<th>' . __('Quantity', 'woocommerce') . '</th>';
    echo '<th>' . __('Discount', 'woocommerce') . '</th>';
    echo '<th>' . __('Price Per Unit', 'woocommerce') . '</th>';
    echo '</tr>';
    echo '</thead>';
    echo '<tbody>';

    $regular_price = $product->get_regular_price();

    foreach ($discount_tiers as $tier) {
        $quantity_range = $tier['min'];

        if ($tier['max']) {
            $quantity_range .= ' - ' . $tier['max'];
        } else {
            $quantity_range .= '+';
        }

        $discounted_price = $regular_price - ($regular_price * $tier['discount'] / 100);

        echo '<tr>';
        echo '<td>' . $quantity_range . '</td>';
        echo '<td>' . $tier['discount'] . '%</td>';
        echo '<td>' . wc_price($discounted_price) . '</td>';
        echo '</tr>';
    }

    echo '</tbody>';
    echo '</table>';
    echo '</div>';
}

Product-Specific Bulk Discount Settings

// Add bulk discount settings to product admin
add_action('woocommerce_product_options_pricing', 'add_bulk_discount_fields');
function add_bulk_discount_fields() {
    global $post;

    echo '<div class="options_group bulk-discount-group">';

    echo '<p class="form-field"><strong>' . __('Bulk Discount Tiers', 'woocommerce') . '</strong></p>';

    // Enable bulk discounts
    woocommerce_wp_checkbox(array(
        'id'          => '_enable_bulk_discount',
        'label'       => __('Enable Bulk Discounts', 'woocommerce'),
        'description' => __('Enable quantity-based discounts for this product', 'woocommerce'),
    ));

    // Tier 1
    echo '<div class="bulk-discount-tier">';
    woocommerce_wp_text_input(array(
        'id'          => '_bulk_qty_1',
        'label'       => __('Tier 1 Quantity', 'woocommerce'),
        'type'        => 'number',
        'placeholder' => '5',
        'desc_tip'    => true,
        'description' => __('Minimum quantity for first discount tier', 'woocommerce'),
    ));

    woocommerce_wp_text_input(array(
        'id'          => '_bulk_discount_1',
        'label'       => __('Tier 1 Discount %', 'woocommerce'),
        'type'        => 'number',
        'placeholder' => '5',
        'desc_tip'    => true,
        'description' => __('Discount percentage for tier 1', 'woocommerce'),
    ));
    echo '</div>';

    // Tier 2
    echo '<div class="bulk-discount-tier">';
    woocommerce_wp_text_input(array(
        'id'          => '_bulk_qty_2',
        'label'       => __('Tier 2 Quantity', 'woocommerce'),
        'type'        => 'number',
        'placeholder' => '10',
    ));

    woocommerce_wp_text_input(array(
        'id'          => '_bulk_discount_2',
        'label'       => __('Tier 2 Discount %', 'woocommerce'),
        'type'        => 'number',
        'placeholder' => '10',
    ));
    echo '</div>';

    // Tier 3
    echo '<div class="bulk-discount-tier">';
    woocommerce_wp_text_input(array(
        'id'          => '_bulk_qty_3',
        'label'       => __('Tier 3 Quantity', 'woocommerce'),
        'type'        => 'number',
        'placeholder' => '20',
    ));

    woocommerce_wp_text_input(array(
        'id'          => '_bulk_discount_3',
        'label'       => __('Tier 3 Discount %', 'woocommerce'),
        'type'        => 'number',
        'placeholder' => '15',
    ));
    echo '</div>';

    echo '</div>';
}

// Save bulk discount fields
add_action('woocommerce_process_product_meta', 'save_bulk_discount_fields');
function save_bulk_discount_fields($post_id) {
    $enable_bulk = isset($_POST['_enable_bulk_discount']) ? 'yes' : 'no';
    update_post_meta($post_id, '_enable_bulk_discount', $enable_bulk);

    // Save tiers
    for ($i = 1; $i <= 3; $i++) {
        $qty = isset($_POST['_bulk_qty_' . $i]) ? intval($_POST['_bulk_qty_' . $i]) : '';
        $discount = isset($_POST['_bulk_discount_' . $i]) ? floatval($_POST['_bulk_discount_' . $i]) : '';

        update_post_meta($post_id, '_bulk_qty_' . $i, $qty);
        update_post_meta($post_id, '_bulk_discount_' . $i, $discount);
    }
}

Apply Product-Specific Bulk Discounts

// Apply product-specific bulk discounts
add_action('woocommerce_before_calculate_totals', 'apply_product_bulk_discount', 10, 1);
function apply_product_bulk_discount($cart) {
    if (is_admin() && !defined('DOING_AJAX')) {
        return;
    }

    if (did_action('woocommerce_before_calculate_totals') >= 2) {
        return;
    }

    foreach ($cart->get_cart() as $cart_item_key => $cart_item) {
        $product_id = $cart_item['product_id'];
        $quantity = $cart_item['quantity'];
        $product = $cart_item['data'];

        // Check if bulk discounts are enabled for this product
        if (get_post_meta($product_id, '_enable_bulk_discount', true) !== 'yes') {
            continue;
        }

        $original_price = $product->get_regular_price();
        $discount_percentage = 0;

        // Check tiers (from highest to lowest)
        for ($i = 3; $i >= 1; $i--) {
            $tier_qty = get_post_meta($product_id, '_bulk_qty_' . $i, true);
            $tier_discount = get_post_meta($product_id, '_bulk_discount_' . $i, true);

            if ($tier_qty && $tier_discount && $quantity >= $tier_qty) {
                $discount_percentage = $tier_discount;
                break;
            }
        }

        if ($discount_percentage > 0) {
            $discount_amount = ($original_price * $discount_percentage) / 100;
            $new_price = $original_price - $discount_amount;
            $product->set_price($new_price);
        }
    }
}

Display Discount in Cart

// Show applied discount in cart
add_filter('woocommerce_cart_item_price', 'display_bulk_discount_in_cart', 10, 3);
function display_bulk_discount_in_cart($price, $cart_item, $cart_item_key) {
    if (isset($cart_item['bulk_discount']) && $cart_item['bulk_discount'] > 0) {
        $product = $cart_item['data'];
        $original_price = $product->get_regular_price();

        $price = '<del>' . wc_price($original_price) . '</del> ' . wc_price($product->get_price());
        $price .= '<br><small class="bulk-discount-notice">' .
                  sprintf(__('Bulk Discount: %s%% off', 'woocommerce'), $cart_item['bulk_discount']) .
                  '</small>';
    }

    return $price;
}

Category-Wide Bulk Discounts

// Apply bulk discounts to entire categories
add_action('woocommerce_before_calculate_totals', 'apply_category_bulk_discount');
function apply_category_bulk_discount($cart) {
    if (is_admin() && !defined('DOING_AJAX')) {
        return;
    }

    if (did_action('woocommerce_before_calculate_totals') >= 2) {
        return;
    }

    // Define category discount rules
    $category_rules = array(
        'wholesale' => array(
            array('min' => 10, 'discount' => 15),
            array('min' => 50, 'discount' => 25),
            array('min' => 100, 'discount' => 35),
        ),
        'bulk-items' => array(
            array('min' => 5, 'discount' => 10),
            array('min' => 20, 'discount' => 20),
        ),
    );

    foreach ($cart->get_cart() as $cart_item_key => $cart_item) {
        $product = $cart_item['data'];
        $product_id = $cart_item['product_id'];
        $quantity = $cart_item['quantity'];

        // Get product categories
        $categories = wp_get_post_terms($product_id, 'product_cat', array('fields' => 'slugs'));

        foreach ($categories as $category_slug) {
            if (isset($category_rules[$category_slug])) {
                $rules = $category_rules[$category_slug];
                $discount_percentage = 0;

                // Find applicable discount tier
                foreach (array_reverse($rules) as $rule) {
                    if ($quantity >= $rule['min']) {
                        $discount_percentage = $rule['discount'];
                        break;
                    }
                }

                if ($discount_percentage > 0) {
                    $original_price = $product->get_regular_price();
                    $discount_amount = ($original_price * $discount_percentage) / 100;
                    $new_price = $original_price - $discount_amount;

                    $product->set_price($new_price);
                    break; // Apply only first matching category
                }
            }
        }
    }
}

Role-Based Bulk Discounts

// Apply bulk discounts based on user role (wholesale customers)
add_action('woocommerce_before_calculate_totals', 'apply_role_based_bulk_discount');
function apply_role_based_bulk_discount($cart) {
    if (is_admin() && !defined('DOING_AJAX')) {
        return;
    }

    if (did_action('woocommerce_before_calculate_totals') >= 2) {
        return;
    }

    // Check if user is wholesale customer
    if (!is_user_logged_in()) {
        return;
    }

    $user = wp_get_current_user();

    if (!in_array('wholesale_customer', $user->roles)) {
        return;
    }

    // Wholesale discount tiers
    $wholesale_tiers = array(
        array('min' => 1, 'discount' => 10),   // 10% off everything
        array('min' => 10, 'discount' => 15),  // 15% off for 10+
        array('min' => 50, 'discount' => 25),  // 25% off for 50+
        array('min' => 100, 'discount' => 35), // 35% off for 100+
    );

    foreach ($cart->get_cart() as $cart_item_key => $cart_item) {
        $product = $cart_item['data'];
        $quantity = $cart_item['quantity'];
        $original_price = $product->get_regular_price();

        $discount_percentage = 0;

        foreach (array_reverse($wholesale_tiers) as $tier) {
            if ($quantity >= $tier['min']) {
                $discount_percentage = $tier['discount'];
                break;
            }
        }

        if ($discount_percentage > 0) {
            $discount_amount = ($original_price * $discount_percentage) / 100;
            $new_price = $original_price - $discount_amount;

            $product->set_price($new_price);
        }
    }
}

Cart Total Based Discount

// Apply discount based on cart total
add_action('woocommerce_cart_calculate_fees', 'add_cart_total_discount');
function add_cart_total_discount($cart) {
    if (is_admin() && !defined('DOING_AJAX')) {
        return;
    }

    $cart_total = $cart->get_subtotal();

    $discount_amount = 0;

    if ($cart_total >= 1000) {
        $discount_amount = $cart_total * 0.15; // 15% off
    } elseif ($cart_total >= 500) {
        $discount_amount = $cart_total * 0.10; // 10% off
    } elseif ($cart_total >= 200) {
        $discount_amount = $cart_total * 0.05; // 5% off
    }

    if ($discount_amount > 0) {
        $cart->add_fee(__('Bulk Order Discount', 'woocommerce'), -$discount_amount);
    }
}

Styling

/* Bulk discount table */
.bulk-discount-table {
    margin: 20px 0;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 5px;
    border: 2px solid #0073aa;
}

.bulk-discount-table h4 {
    margin-top: 0;
    color: #0073aa;
    font-size: 18px;
}

.bulk-discount-table table {
    width: 100%;
    border-collapse: collapse;
}

.bulk-discount-table th,
.bulk-discount-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.bulk-discount-table th {
    background: #0073aa;
    color: white;
    font-weight: 600;
}

.bulk-discount-table tr:hover {
    background: #f0f0f0;
}

/* Discount notice in cart */
.bulk-discount-notice {
    color: #0073aa;
    font-weight: 600;
}

/* Admin bulk discount fields */
.bulk-discount-tier {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
}

.bulk-discount-tier .form-field {
    flex: 1;
}

Features

  • Quantity-Based Discounts: Automatic discounts based on quantity purchased
  • Tiered Pricing: Multiple discount tiers (5%, 10%, 15%, 20%, 25%)
  • Visual Pricing Table: Shows discount tiers on product pages
  • Product-Specific Rules: Set custom discount tiers per product
  • Category-Wide Discounts: Apply discounts to entire product categories
  • Role-Based Pricing: Wholesale pricing for specific user roles
  • Cart Total Discounts: Discounts based on total cart value
  • Dynamic Calculation: Real-time price updates in cart
  • Discount Display: Shows applied discounts in cart and checkout
  • Admin Interface: Easy-to-use fields for setting discount rules
  • Fully Responsive: Mobile-friendly pricing tables
  • Flexible Configuration: Supports multiple discount strategies

Dependencies

  • WooCommerce
Back to All Snippets
⚡
Code Typer
Love this snippet? Practice typing WordPress code at lightning speed with Code Typer and build your muscle memory!

Related Snippets

Apply Discount Based on User Role

Automatically apply percentage discounts to WooCommerce products based on user roles

PHPwoocommerceadvanced
phpPreview
// Apply role-based discount to product prices
function apply_role_based_discount($price, $product) {
    // Only for logged-in users
    if (!is_user_logged_in()) {
...
#woocommerce#discount#user-roles+2
1/9/2025
View

WooCommerce Custom Checkout Fields

Add custom fields to WooCommerce checkout with validation and order display

PHPwoocommerceintermediate
phpPreview
// Add custom fields to checkout page
add_action('woocommerce_after_order_notes', 'custom_checkout_fields');
function custom_checkout_fields($checkout) {
    echo '<div id="custom_checkout_fields"><h3>' . __('Additional Information') . '</h3>';
...
#woocommerce#checkout#custom-fields+2
12/23/2025
View

WooCommerce Custom Email Notifications

Create custom email notifications for WooCommerce events and triggers

PHPwoocommerceadvanced
phpPreview
// Create custom email class
if (!class_exists('WC_Custom_Order_Email')) {
    class WC_Custom_Order_Email extends WC_Email {

...
#woocommerce#email#notifications+2
12/23/2025
View