How to Customize Shopify Plus Checkout: The Complete Guide for 2025

The checkout page is the most crucial part of your Shopify store—it’s where conversions happen. For Shopify merchants seeking to maximize conversions and provide a branded, seamless customer experience, Shopify Plus checkout customization offers unmatched flexibility.

If you’re a growing eCommerce brand, using Shopify Plus gives you a serious edge, especially regarding checkout customization. Unlike standard Shopify plans, Shopify Plus merchants can completely transform their checkout experience to improve conversions, drive average order value (AOV), and create a branded shopping journey.

This article discusses how to customize the Shopify Plus checkout to align it with your brand, increase trust, and improve conversion rates.

Why does Checkout Customization Matter in Shopify?

When it comes to e-commerce, your checkout experience can make or break a sale. It’s not just the final step — it’s the most critical one. For Shopify merchants aiming to scale their operations and increase conversions, Shopify checkout page customization is no longer optional — it’s a necessity.

1. Reduce Cart Abandonment

Studies show that over 70% of online carts are abandoned, and a complex or generic checkout experience is a key reason why. With custom checkout Shopify solutions, you can streamline the process, reduce friction, and offer a smoother path to purchase. Simplified forms, auto-filled fields, and fewer steps mean fewer chances for users to drop off.

2. Improve Brand Consistency

Your brand shouldn’t disappear at checkout. With Shopify Plus checkout customization, you can fully tailor the design, layout, and messaging of your checkout page to match your store’s branding. This builds trust and provides a seamless experience from browsing to payment, increasing customer confidence and loyalty.

3. Enable Personalized Experiences

A customized checkout gives you the ability to personalize offers, discounts, and messaging based on cart contents, user behavior, or location. Want to upsell or cross-sell a product before payment? Add a progress bar or timer to create urgency? Custom Shopify checkout allows you to do all of this without relying on third-party apps that slow down performance.

4. Optimize for Mobile Shoppers

With mobile commerce on the rise, your checkout must be mobile-optimized. A custom checkout Shopify solution can help ensure that your checkout page is responsive, fast-loading, and easy to navigate on all devices, especially smartphones.

5. Integrate Business-Critical Logic

Only Shopify Plus users get access to checkout.liquid and the Shopify Scripts API, which means you can implement dynamic pricing, conditional logic, tiered discounts, shipping rules, and more — all natively, without external apps. With the right Shopify Plus checkout customization, you can craft intelligent checkout flows that improve margins and customer satisfaction.

Whether you’re looking to simplify the buyer journey, build a memorable brand, or run promotions that convert, customizing your Shopify checkout page is the key. Partnering with an experienced Shopify Plus agency like CodingKart ensures that every pixel and process is optimized for growth.

What Can You Customize on Shopify Plus Checkout?

For high-growth eCommerce brands, the checkout experience isn’t just a final step — it’s a strategic tool for increasing conversions, reducing friction, and boosting average order value. With Shopify Plus checkout customization, merchants get access to powerful tools and code-level control that are not available on standard Shopify plans. But what exactly can you customize?

Here’s a breakdown of what Shopify checkout page customization looks like with Shopify Plus:

1. Design & Layout – via checkout.liquid

With Shopify Plus, you get access to the checkout. liquid file — the holy grail for developers looking to create a fully branded, custom checkout experience.

What you can customize:

• Add brand elements like logos, fonts, and colors
• Rearrange or hide checkout fields
• Include trust badges or security icons
• Display dynamic banners, timers, or promotional messages

This level of customization ensures that your checkout page stays consistent with the rest of your site, which helps build trust and encourages users to complete their purchases.

3. Custom Scripts for Discounts & Logic (via Shopify Scripts)

One of the standout features of Shopify Plus checkout customization is the ability to use Shopify Scripts. These are small pieces of code that allow you to control pricing logic and cart behavior at checkout, natively, without third-party apps.

Examples include:

• Tiered or volume-based discounts
• Buy One Get One (BOGO) offers
• Gifts based on cart value
• Shipping and payment method restrictions

By tailoring the checkout experience to specific business rules, you can influence buyer decisions in real-time.

3. Custom Fields and Input Options

If your products require specific buyer details or custom input, such as delivery instructions, gift notes, or special messages, Shopify Plus allows for custom fields to be added directly to the checkout page.

This is incredibly valuable for merchants selling personalized products or those who need additional customer data before fulfillment.

4. Localization and Multi-Currency Setup

For international sellers, Shopify checkout page customization also includes the ability to localize:

• Language and currency
• Tax displays and shipping logic
• Address format and country-specific fields

These customizations help you deliver a smooth and culturally aligned experience for customers around the world.

5. Checkout Extensions (New Feature)

Shopify has recently rolled out Checkout Extensions, which enable developers to create app-like experiences directly in the checkout UI without editing checkout.liquid. These extensions offer more flexibility while staying secure and compatible with future Shopify updates.

This means you can now:

• Add custom upsell sections
• Collect extra user inputs
• Integrate loyalty programs
• Show shipping cut-off timers

All without touching the core code, making them safer and easier to maintain.

6. Analytics and Performance Optimization

Though not a visual customization, the performance of your checkout is crucial. Shopify Plus allows deeper integration with analytics platforms and conversion tools, so you can A/B test different elements, monitor drop-off points, and continuously optimize for better results.

Step-by-Step: Shopify Plus Checkout Customization

For enterprise-level brands, the checkout experience is not just a final touchpoint — it’s a critical driver of conversions and revenue. While standard Shopify plans offer limited flexibility at checkout, Shopify Plus unlocks the tools you need to create a truly tailored experience through advanced Shopify checkout page customization.

In this guide, we walk you through the step-by-step process for Shopify Plus checkout customization and how to leverage it to build a custom Shopify checkout that converts.

Step 1: Gain Access to checkout.liquid

Only Shopify Plus merchants get access to the checkout. liquid file. This is the core file that controls your checkout layout and allows code-level changes.

How to do it:

• Log in to your Shopify Admin.
• Go to Online Store > Themes.
• Duplicate your live theme to create a backup.
• Navigate to Edit Code > Templates.
• You will now see the checkout. liquid file (if you’re on Shopify Plus).

This file is your gateway to Shopify checkout page customization. It allows you to fully style and structure your checkout.

Step 2: Customize Checkout Branding

Once inside, check out. liquid, start by aligning the checkout with your brand aesthetics.

Key Customizations:

• Logo placement and sizing
• Brand colors and typography
• Custom header and footer messaging
• Trust badges and security icons

A custom checkout Shopify experience that mirrors your site’s branding builds trust and reduces bounce rates.

Step 3: Implement Shopify Scripts

Next, use the Shopify Scripts Editor, which is exclusive to Plus merchants. This allows you to write Ruby scripts that modify cart and checkout behavior dynamically.

What You Can Do with Scripts:

• Offer tiered discounts based on cart size
• Create BOGO promotions
• Auto-apply coupons
• Modify shipping methods by product type
• Restrict payment methods for certain products

Step 4: Add Custom Fields (If Needed)

You can add custom input fields to collect extra customer info, such as:

• Delivery instructions
• Gift messages
• Order notes or special requests

These can be added using checkout.liquid or via Shopify Checkout Extensions (a newer, more secure method).

Step 5: Integrate Analytics and Conversion Tracking

With Shopify Plus, you get deeper analytics integration. Set up tracking to monitor:

• Check out drop-off rates
• Conversion funnels
• Heatmaps for checkout interaction

This will help you continually optimize your Shopify checkout page customization efforts.

Step 7: Test Across Devices and Browsers

Before going live, test your custom checkout Shopify experience on:

• Desktop and mobile
• Chrome, Safari, Firefox, Edge
• Different screen sizes and OS

Make sure all elements render correctly and functionality is flawless.

Step 8: Publish and Monitor Performance

Once everything checks out, push your changes live. Monitor the impact using:

• Shopify Analytics
• Google Analytics
• Heatmaps (Hotjar, Clarity, etc.)

Track metrics like cart abandonment, average order value, and completed checkouts.

In Final Words

A custom checkout Shopify setup isn’t just about aesthetics — it’s a strategic move to drive conversions, simplify the user journey, and increase revenue. Whether you’re just starting with Shopify Plus or looking to optimize your current setup, these step-by-step customization strategies give you the power to build a branded, fast, and effective checkout experience.

Ready to Transform Your Shopify Plus Checkout?

Hire Shopify Plus Experts at CodingKart — your trusted Shopify Plus agency — to build, customize, and scale your checkout for real results. 

About the author

By Smit

Smit is a tech writer focused on Shopify plus, Shopify Plus app development, Shopify checkout, Shopify ERP, and Subscription solutions. He distills complex Shopify topics into practical insights that help merchants optimize, scale, and succeed.