The Ultimate Guide to Customize WooCommerce Checkout Page Without Plugins (Copy-Paste Snippets)

Did you know that 18% of customers abandon their carts simply because the checkout process is too long or complicated?

If you are running a WooCommerce store, your default checkout page is likely cluttered with unnecessary fields like “Company Name,” “Address Line 2,” or “Order Notes.”

Most tutorials will tell you to install a plugin like Checkout Field Editor. I say: Don’t do it.

Adding a plugin for something that can be fixed with 5 lines of code is bad practice. It bloats your database and slows down your site. As a developer who prioritizes Performance, I believe in keeping things lightweight.

In this guide, I have compiled every single code snippet you will ever need to master your WooCommerce Checkout page—completely plugin-free.

⚠️ Before You Start
You need to add these codes to your theme’s functions.php file. Stop! Do not edit the parent theme. If you update your theme, you will lose these codes. 👉 Use my Free Child Theme Generator to create a safe child theme first.

How to Remove Unwanted Checkout Fields
This is the most common request. If you sell B2C (Direct to Customer), you don’t need the “Company Name” field. Let’s remove the clutter.

Copy this code to remove Company Name, Website, and Order Notes:

add_filter( 'woocommerce_checkout_fields' , 'ahmodmusa_remove_checkout_fields' );

function ahmodmusa_remove_checkout_fields( $fields ) {
    // Remove Billing Fields
    unset($fields['billing']['billing_company']);
    unset($fields['billing']['billing_address_2']); // Optional address line
    unset($fields['billing']['billing_postcode']);  // Remove if selling digital items
    
    // Remove Shipping Fields (if needed)
    unset($fields['shipping']['shipping_company']);
    
    // Remove Order Notes (The big box at the bottom)
    unset($fields['order']['order_comments']); 
    
    return $fields;
}

2. How to Make a Field “Optional” or “Required”
By default, WooCommerce forces users to enter their Phone Number. In many Western countries, people hate giving out their numbers. Making it Optional can increase your sales.

Code to make Phone & Email Optional:

add_filter( 'woocommerce_billing_fields', 'ahmodmusa_make_fields_optional');

function ahmodmusa_make_fields_optional( $fields ) {
    // Make Phone Number Optional
    $fields['billing_phone']['required'] = false;
    
    // Make Email Optional (Not recommended, but possible)
    // $fields['billing_email']['required'] = false; 
    
    return $fields;
}

Conversely, if you want to force users to enter a Company Name (for B2B stores), change false to true.

3. How to Rename Labels & Placeholders
Do you want to change “Billing First Name” to just “Your Name”? or “Place Order” to “Confirm Purchase”?

Code to Rename Labels:

add_filter( 'woocommerce_checkout_fields', 'ahmodmusa_rename_checkout_labels' );

function ahmodmusa_rename_checkout_labels( $fields ) {
    // Change First Name Label
    $fields['billing']['billing_first_name']['label'] = 'Your Full Name';
    $fields['billing']['billing_first_name']['placeholder'] = 'John Doe';

    // Change Order Notes Placeholder
    $fields['order']['order_comments']['placeholder'] = 'Special notes for delivery (e.g. Leave at gate)';

    return $fields;
}

4. How to Change the “Place Order” Button Text
The default “Place Order” text sounds generic. Changing it to something action-oriented like “Complete My Order” or “Pay Now” can boost CTR.

add_filter( 'woocommerce_order_button_text', 'ahmodmusa_custom_checkout_btn_text' ); 

function ahmodmusa_custom_checkout_btn_text() {
    return __( 'Complete My Purchase', 'woocommerce' ); 
}

5. How to Reorder Checkout Fields (Priority)
Sometimes you want the Email Address to be at the very top, before the Name. In WooCommerce, every field has a “Priority” number. Lower numbers appear first.

First Name: 10
Last Name: 20
Phone: 100
Email: 110

Code to move Email to the top:

add_filter( 'woocommerce_billing_fields', 'ahmodmusa_move_checkout_fields' );

function ahmodmusa_move_checkout_fields( $fields ) {
    // Move Email to the top (Priority 1)
    $fields['billing_email']['priority'] = 1;
    
    // Move Phone Number after Email (Priority 2)
    $fields['billing_phone']['priority'] = 2;

    return $fields;
}

Summary: Keep It Clean, Keep It Fast
A clean checkout page is the secret weapon of high-converting stores. By using these code snippets, you achieved three things today:

• Cleaner UI: Better user experience for your customers.
• Faster Site: You didn’t install a heavy plugin.
• Total Control: You customized it exactly how you wanted.

If you are building a custom WooCommerce store and need complex logic (like conditional fields based on product category), simple snippets might not be enough. That requires advanced development.

Need a custom checkout flow or payment gateway integration? Hire me to build a high-performance WooCommerce store that scales.

⚠️ Important Note for New WooCommerce Users: These code snippets work best with the Classic Checkout shortcode [woocommerce_checkout]. If you are using the new WooCommerce Blocks, these snippets might not function visually. I highly recommend switching to the Classic Checkout for full control over your design and logic.