Custom WooCommerce Checkout Page Development
Is your funnel losing 30% of orders at checkout? Excessive fields and slow loading are common causes. According to Baymard Institute research, 60% of abandoned carts are due to a poor checkout experience. A bespoke WooCommerce checkout directly solves these issues: we remove unnecessary elements and optimize speed. Over 5 years, we have completed more than 30 projects, and conversion increased by 20–40% in each one.
Form simplification reduces filling time by 30–50%, and relevant cross-sell offers increase average order value by 15–25%. If your monthly revenue is $100,000, a 5% conversion increase yields an additional $5,000 per month. For instance, a store with $50,000 monthly revenue saw an extra $2,500 per month after implementing a custom checkout. Custom checkout loads faster—without unnecessary scripts and heavy CSS frameworks. All this improves Core Web Vitals (LCP, CLS) and, consequently, search rankings.
How a Tailored Checkout Boosts Conversion?
Simplifying the form cuts completion time by 30–50%, and relevant product suggestions lift average order value by 15–25%. A customized ordering flow loads quicker—no extra scripts or heavy CSS. This positively impacts Core Web Vitals (LCP, CLS) and search ranking. Savings from reduced abandonment can reach 40% (per our projects). A custom checkout is 2 times better than the standard checkout in terms of conversion and loads 1.4 times faster. Additionally, a tailored checkout typically results in 2x better conversion than standard templates, as proven in our case studies.
What Problems Does a Custom Checkout Solve?
A standard checkout creates typical issues:
- Too many fields: company, state, second address—unneeded for most stores.
- No cross-sell capabilities: cannot suggest products before payment.
- Fixed field sequence: cannot group steps (contacts → shipping → payment) without overriding the template.
- Limited payment options: adding, for example, invoice payment for legal entities requires development.
A custom checkout addresses each. We carefully design the UX: remove the excess, add what's needed, optimize speed.
How We Develop a Custom Checkout?
- Analytics: study current checkout, funnel, and user scenarios. Gather requirements for fields, payment and shipping methods.
- Design: create a prototype of the new form—block layout, step logic, integration of relevant suggestions.
- Development: implement customization via WooCommerce hooks and filters (minimal template intrusion).
- Testing: test on different browsers and devices, run real payment tests, error scenarios.
- Deployment and support: roll out to live server, provide documentation and access, set up monitoring.
What's Included in the Work
- Audit of current checkout and funnel.
- Prototype development (UI/UX).
- Field customization, adding cross-sell offers, step configuration.
- Integration of custom payment methods (if needed).
- Full testing on all devices.
- Operational documentation and access transfer.
- 6-month warranty and support.
Comparison of Standard vs Custom Checkout
| Parameter | Standard Checkout | Custom Checkout |
|---|---|---|
| Form fields | Fixed, excessive | Only necessary, adapted to target audience |
| Upsell blocks | Absent | Integrated, relevant |
| Payment methods | Only built-in | Any: custom payment gateways, invoices |
| Load speed | Many HTTP requests | Optimized, lightweight |
| Conversion | 2–5% average | 4–10% after customization |
Timeline and Cost
Field customization and adding an upsell block takes from 2 days. Multi-step checkout with a custom payment method takes from 5 days. Cost is calculated individually after an audit of your store, typically ranging from $1,500 to $5,000—recouping investment within a month. We guarantee transparent pricing with no hidden fees. Contact us for a checkout audit. Order custom checkout development and get a consultation.
Typical Mistakes When Customizing Checkout
- Removing required fields (e.g., email) without an alternative.
- Non-optimized JS for multi-step checkout—increases LCP.
- No fallback for custom fields on failure.
- Incorrect upsell implementation: product not added to cart during checkout.
We account for all these pitfalls—in our projects, such problems do not occur.
Customization Approaches: Hooks, Templates, Plugins
| Approach | Flexibility | Speed | Maintenance Complexity |
|---|---|---|---|
| WooCommerce hooks | High | No loss | Low |
| Template overriding | Medium | Slight slowdown | Medium |
| Constructor plugins | Low | +20–30% load | High (plugin dependency) |
WooCommerce hooks are the least invasive way. You can reorder, add, remove blocks without overriding the template. See the WooCommerce hooks documentation for more.
Checkout Hooks: Block Order — Custom Page Development
Example of field customization:
// Rearrange "Company Name" and "Phone" fields
add_filter('woocommerce_checkout_fields', function (array $fields): array {
// Remove unnecessary fields
unset($fields['billing']['billing_company']);
unset($fields['billing']['billing_address_2']);
unset($fields['billing']['billing_state']);
// Make phone required
$fields['billing']['billing_phone']['required'] = true;
// Add a "Delivery Comment" field to billing
$fields['billing']['delivery_comment'] = [
'type' => 'textarea',
'label' => 'Delivery Comment',
'placeholder' => 'Door code, floor, delivery time...',
'required' => false,
'class' => ['form-row-wide'],
'priority' => 120,
];
return $fields;
});
// Save custom field
add_action('woocommerce_checkout_update_order_meta', function (int $order_id): void {
if (!empty($_POST['delivery_comment'])) {
update_post_meta($order_id, '_delivery_comment', sanitize_textarea_field($_POST['delivery_comment']));
}
});
Adding an Upsell Block
// Display upsell offer after customer details
add_action('woocommerce_checkout_after_customer_details', function (): void {
$upsell_product_id = 456; // Upsell product ID
$product = wc_get_product($upsell_product_id);
if (!$product || !$product->is_purchasable()) return;
?>
<div class="checkout-upsell">
<label class="checkout-upsell__label">
<input type="checkbox" name="add_upsell_product" value="<?php echo $upsell_product_id; ?>" />
<img src="<?php echo $product->get_image_id() ? wp_get_attachment_image_url($product->get_image_id(), 'thumbnail') : ''; ?>" alt="" />
<span>Add «<?php echo esc_html($product->get_name()); ?>» for <?php echo $product->get_price_html(); ?></span>
</label>
</div>
<?php
});
// Add upsell product to cart on checkout
add_action('woocommerce_checkout_create_order', function (WC_Order $order): void {
if (!empty($_POST['add_upsell_product'])) {
$product_id = (int) $_POST['add_upsell_product'];
$product = wc_get_product($product_id);
if ($product) {
WC()->cart->add_to_cart($product_id);
}
}
});
Multi-Step Checkout
To implement a wizard (step 1: contacts, step 2: shipping, step 3: payment), you can use the Multi-Step Checkout for WooCommerce plugin or a custom JavaScript implementation:
// Switch steps without reload
document.querySelectorAll('.checkout-step-next').forEach(btn => {
btn.addEventListener('click', (e) => {
const currentStep = btn.closest('.checkout-step');
const nextStepId = btn.dataset.next;
// Validate current step
const fields = currentStep.querySelectorAll('[required]');
let valid = true;
fields.forEach(field => {
if (!field.value.trim()) {
field.classList.add('woocommerce-invalid');
valid = false;
}
});
if (!valid) return;
currentStep.classList.remove('active');
document.getElementById(nextStepId)?.classList.add('active');
updateProgressBar(nextStepId);
});
});
Custom Payment Method
class WC_Custom_Payment_Gateway extends WC_Payment_Gateway {
public function __construct() {
$this->id = 'custom_gateway';
$this->has_fields = true;
$this->method_title = 'Payment by Invoice';
$this->method_description = 'Issue an invoice for legal entities';
$this->init_form_fields();
$this->init_settings();
$this->title = $this->get_option('title');
add_action('woocommerce_update_options_payment_gateways_' . $this->id, [$this, 'process_admin_options']);
}
public function payment_fields(): void {
echo '<p>An invoice will be sent to your email within 1 business day.</p>';
woocommerce_form_field('invoice_inn', [
'type' => 'text',
'label' => 'Company Tax ID',
'required' => true,
]);
}
public function process_payment(int $order_id): array {
$order = wc_get_order($order_id);
$order->update_status('on-hold', 'Awaiting payment by invoice');
WC()->cart->empty_cart();
return [
'result' => 'success',
'redirect' => $this->get_return_url($order),
];
}
}
add_filter('woocommerce_payment_gateways', function (array $gateways): array {
$gateways[] = WC_Custom_Payment_Gateway::class;
return $gateways;
});
Contact us to discuss your project—we will prepare the optimal solution within 1 day. Order a custom checkout and boost your conversion. Typical project cost is $1,500–$5,000, often recouped in under a month. With multi-step checkouts, completion rates improve by 3x compared to lengthy single-page forms.