How to Customize Shopify Checkout: Every Option Explained

Your Checkout Is Either Converting or Costing You Money

A 22% checkout abandonment rate. That is the percentage of shoppers who make it all the way to your checkout page and still leave without buying — because the experience created enough friction, confusion, or distrust to kill the sale. Learning how to customize Shopify checkout is not a cosmetic exercise. It is the single highest-leverage conversion optimization you can make.

Shopify's checkout already converts better than most competing platforms out of the box. But "out of the box" still leaves significant revenue on the table. Branded checkouts build trust. Streamlined layouts reduce drop-off. Express payment options like Shop Pay can increase checkout-to-order conversion by up to 50% compared to guest checkout. Every customization you make — from adding your logo to deploying checkout UI extensions — stacks toward a higher completion rate.

This guide walks through every customization option available to Shopify merchants in 2026, organized by plan level. Whether you are on Basic Shopify or Shopify Plus, the payments and checkout resources here will help you build a checkout that matches your brand and maximizes revenue.

Checkout Branding: Logo, Colors, Fonts, and Banners

Every Shopify plan — Basic, Shopify, Advanced, and Plus — gives you access to visual branding controls for checkout. These options live in the checkout editor within your Shopify admin.

How to Access the Checkout Editor

1. Navigate to Settings > Checkout in your Shopify admin.
2. In the Configurations section, click Customize next to your active configuration.
3. The checkout editor opens with branding controls in the left sidebar.

What You Can Customize

Logo and header: Upload your store logo, set its position (left, center, or right), and adjust its maximum width. You can also add a full-width banner image behind the header area.

Colors: Customize the color of buttons, accent elements (links and focus states), error messages, and form field backgrounds. You can set form fields to white or transparent, matching your site aesthetic.

Typography: Choose from Shopify's approved font library for both headings and body text. While you cannot upload custom fonts through the editor, the available selection covers most brand needs.

Background: Set a background color or upload a background image for the main content area and order summary sidebar.

Plus-Only: Advanced Branding with the Checkout Branding API

Shopify Plus merchants get access to the Checkout Branding API, which goes far beyond the basic editor. Through the GraphQL Admin API, you can modify button corner radius, border widths, color schemes for the main area and sidebar independently, and apply design tokens across every checkout surface. The Checkout Blocks app from Shopify provides a no-code interface for these API-level branding controls.

Checkout Settings Every Store Should Configure

Beyond visual branding, Shopify's checkout settings control the functional behavior of your checkout. Getting these right prevents abandonment before it starts.

Guest Checkout and Customer Accounts

Navigate to Settings > Checkout > Customer contact method. You have three options:

• Email or phone number — the most flexible; lets customers check out without creating an account
• Email only — standard approach
• Phone number only — useful for regions where SMS communication is primary

Under Customer accounts, choose between optional accounts, required accounts, or no accounts. Forcing account creation increases abandonment by 26%, according to Baymard Institute's checkout usability research. Make account creation optional and position guest checkout as the default path.

Tipping at Checkout

Enable tipping under Settings > Checkout > Tipping. When toggled on, customers see tipping options on the payment page — either as a percentage of their order total or as a custom amount. This feature is particularly valuable for local businesses, food merchants, and service-oriented stores.

Address Autocomplete

Address autocompletion is enabled by default for all Shopify stores and reduces form friction significantly. To verify or toggle the setting:

1. Go to Settings > Checkout > Configurations > Customize.
2. Click the gear icon in the checkout editor to access the Settings sidebar.
3. Under Address autocompletion, confirm that "Use address autocompletion" is selected.

Autocomplete reduces address entry errors, speeds up checkout, and contributes to higher completion rates — especially on mobile where typing is slower.

Order Processing Settings

Under Settings > Checkout > Order processing, configure:

• Auto-fulfill orders — useful for digital products
• Auto-archive orders — keeps your admin clean
• Additional checkout language customization — translate or rephrase any checkout string

One-Page vs. Three-Page Checkout Layout

Shopify now offers every merchant the choice between a one-page and three-page checkout layout. This is one of the most impactful decisions when figuring out how to customize Shopify checkout for better conversions.

The One-Page Checkout

Shopify's one-page checkout consolidates information collection, shipping selection, and payment into a single scrollable page. It is now the default for all new stores, and Shopify's internal testing shows it converts approximately 7.5% better than the three-page layout.

The one-page layout reduces perceived effort. Customers see the entire checkout process at once, which eliminates the uncertainty of "how many more steps?" that causes mid-checkout abandonment.

The Three-Page Checkout

The original three-page flow separates checkout into distinct steps: Information, Shipping, and Payment. Each page has a single focus, which can reduce cognitive overload for complex orders.

Which Layout Should You Choose?

How to switch: Go to Settings > Checkout > Configurations > Customize, then click the gear icon and select your preferred layout under the Checkout layout setting.

Any branding customizations, apps, or checkout blocks you have installed work seamlessly with both layouts. You can switch between them without losing your configuration, making it easy to test which performs better for your specific audience.

Shop Pay and Accelerated Checkout Options

Enabling accelerated checkout methods is one of the highest-ROI customizations you can make. Shop Pay alone can increase lower-funnel conversions by 5% just by being present — even when customers do not use it.

Shop Pay Performance

Shop Pay delivers a 4x faster checkout compared to standard guest checkout by storing customer shipping and payment information across the Shopify network. Key performance data:

• Up to 50% higher conversion vs. guest checkout
• 91% mobile conversion increase in internal benchmarks
• 15% higher average order value on Shop Pay orders compared to other methods

Nearly a quarter of all US-based Shopify orders are now processed through Shop Pay. If you have not enabled it, you are leaving the easiest conversion win on the table.

Enabling Accelerated Checkouts

Navigate to Settings > Payments and enable:

• Shop Pay — Shopify's proprietary accelerated checkout
• Apple Pay and Google Pay — wallet-based payment for mobile shoppers
• PayPal Express — trusted fallback for customers who prefer it
• Buy Now, Pay Later — Shop Pay Installments, Klarna, or Afterpay depending on your region

These options appear as express buttons above the standard checkout form, letting returning customers complete purchases in seconds rather than minutes.

Strategic Placement

Express checkout buttons appear at the top of the checkout page by default. On product pages and in the cart, you can enable dynamic checkout buttons (Buy it now) that skip the cart entirely and take customers straight to checkout with their preferred payment method.

To enable: Go to your theme editor, select the product page template, and ensure the Dynamic checkout button block is enabled.

Shopify Plus: Checkout Extensibility Deep Dive

Shopify Plus unlocks the full checkout extensibility framework — the most powerful set of tools for customizing Shopify checkout and optimizing conversions. This framework replaced the deprecated checkout.liquid file, which was fully sunset for the Information, Shipping, and Payment steps and is being phased out for Thank you and Order status pages by August 2026.

Checkout UI Extensions

Checkout UI extensions let you add custom functionality at over 20 defined extension points throughout the checkout flow. They run in a secure sandbox, separate from the checkout page itself, which means they cannot break checkout or compromise customer data.

Common use cases include:

• Custom banners and messaging — display shipping thresholds, loyalty point balances, or promotional messages
• Gift options — gift wrapping selection, gift messages, delivery date pickers
• Trust and compliance — age verification, terms acceptance, custom disclaimers
• Product recommendations — cross-sell or upsell widgets within checkout

Extensions are built using Shopify CLI and React-based components, deployed through a Shopify app. They inherit your checkout's brand settings automatically.

Shopify Functions

While checkout UI extensions handle the visual layer, Shopify Functions handle server-side logic. Functions run as WebAssembly programs and replace the deprecated Shopify Scripts (sunset deadline: June 30, 2026).

Functions power:

• Custom discount logic — tiered discounts, bundle pricing, conditional promotions
• Shipping rate customization — hide, rename, reorder, or create custom shipping rates
• Payment method customization — hide or reorder payment methods based on cart contents, customer tags, or location
• Cart transforms — automatically add, remove, or modify line items based on rules

Building Your First Checkout Extension

To get started with checkout extensibility:

1. Install Shopify CLI and create a new app.
2. Run shopify app generate extension and select Checkout UI.
3. Choose your extension point (e.g., purchase.checkout.block.render).
4. Build your component using Shopify's UI component library.
5. Deploy and install the app on your Plus store.

Custom Fields and Additional Data Collection

Sometimes you need information from customers that standard checkout does not collect — delivery instructions, gift messages, VAT numbers, or custom engraving text. There are two approaches depending on your plan.

Standard Plans: Cart Attributes and Order Notes

For non-Plus stores, use cart attributes and the order notes field. These require minor theme code edits:

Add a custom field to your cart template using the cart.attributes Liquid object:

<label for="delivery-instructions">Delivery Instructions</label>
<textarea id="delivery-instructions" name="attributes[Delivery Instructions]"></textarea>

This data appears on the order in your Shopify admin and in order confirmation emails. It is a simple solution that works on every plan but only collects data before checkout — not during it.

Plus Plans: Checkout UI Extension Custom Fields

Shopify Plus merchants can add custom fields directly within the checkout flow using checkout UI extensions. These fields can:

• Appear at any of the 20+ extension points
• Validate input in real-time
• Save data as order metafields, order attributes, or order notes
• Access and display product metafield data within the checkout context

According to Shopify's custom field documentation, the Checkout Blocks app also provides a no-code way to add custom fields for Plus merchants who prefer not to build extensions from scratch.

Thank You Page and Order Status Customization

The checkout experience does not end at payment. The Thank you page and Order status page are prime real estate for building loyalty, driving repeat purchases, and collecting feedback.

What Changed in 2026

Shopify has rebuilt the Thank you and Order status pages on the checkout extensibility framework. The old checkout.liquid and additional scripts approach is deprecated, with automatic upgrades beginning in January 2026 for Plus stores. Non-Plus stores have until August 2026.

Customization Options

Through the checkout editor, you can customize these pages with:

• Header and footer content — brand messaging, social links
• Order summary display — control what order details appear
• App blocks — install apps that add functionality directly to these pages

Post-Purchase Upsells

The Thank you page is your highest-intent upsell opportunity. The customer just bought, their payment method is on file, and purchase momentum is at its peak.

Popular apps for post-purchase upsells include:

• AfterSell — one-click post-purchase upsells with no second checkout required
• SweetSpot — thank you page customization with targeted post-purchase offers
• AOV.ai — AI-powered upsell recommendations on the order confirmation page

These apps use Shopify's post-purchase extension API, which lets customers accept upsells with a single click — no re-entering payment information. Stores implementing post-purchase upsells typically see a 5-15% increase in average order value.

Trust Badges and Social Proof at Checkout

Trust is the invisible currency of checkout. A shopper who does not trust your checkout will abandon it, regardless of how much they want the product. According to Convert's guide to optimizing Shopify checkout, 25% of cart abandonment stems from customers not trusting the site with their credit card information.

Where to Place Trust Signals

Below the payment form — this is the highest-anxiety moment. Display SSL/security badges, accepted payment logos, and a brief money-back guarantee statement.

In the order summary — show a return policy snippet and shipping guarantee.

As checkout banners — use checkout UI extensions (Plus) or the Checkout Blocks app to add trust messaging at key extension points.

Best Practices for Trust Badges

For non-Plus stores, trust badges can be added to the cart page and product pages where they still influence checkout behavior. Use your theme's section editor to place trust badge image blocks below the add-to-cart button and in the cart drawer.

A/B Testing Your Checkout Customizations

Making changes without measuring results is guessing, not optimizing. Every checkout customization should be tested against a control to verify it actually improves conversion.

What to Test

Prioritize tests by potential impact:

1. One-page vs. three-page layout — the single biggest structural variable
2. Express checkout button visibility — above the fold vs. below the form
3. Trust badge presence and placement — near payment vs. order summary
4. Custom messaging and banners — shipping threshold reminders, urgency messaging
5. Form field reduction — removing optional fields to simplify the flow

How to Run Checkout A/B Tests

Shopify Plus merchants can use tools like Intelligems or Elevate to run controlled experiments directly on checkout. These tools integrate with checkout blocks and can split traffic between different configurations.

Standard plan merchants can test indirectly by:

• Switching between one-page and three-page layouts for defined periods and comparing conversion rates
• Enabling or disabling specific express checkout options and measuring impact
• Using Shopify's built-in analytics (Analytics > Reports > Sessions by conversion funnel) to track checkout completion rates before and after changes

Testing Rules

• One variable at a time — isolate the element being tested so you know what caused any change
• Sufficient sample size — run tests until you have at least 1,000 checkout sessions per variation
• Statistical significance — do not call a winner until you reach 95% confidence
• Document everything — record what you tested, the hypothesis, the result, and whether you shipped the change

The Talk Shop community consistently sees that merchants who run even one checkout A/B test per quarter outperform those who set and forget their configuration.

Common Checkout Customization Mistakes

Even well-intentioned customizations can hurt conversion if implemented poorly. Here are the mistakes the Shopify experts network sees most frequently.

Overloading the Checkout with Upsells

Adding too many cross-sell widgets, pop-ups, and promotional banners to checkout creates distraction and decision fatigue. The customer already decided to buy — your job now is to get out of the way and let them complete the transaction. Limit checkout upsells to one well-targeted offer, ideally on the Thank you page rather than mid-checkout.

Ignoring Mobile Checkout

Over 60% of Shopify traffic is mobile, but many merchants only preview their checkout customizations on desktop. Always test your checkout on actual mobile devices. Check that:

• Buttons are large enough to tap without zooming
• Form fields are properly sized and spaced
• Express checkout buttons load above the fold
• Custom banners and trust badges do not push the payment form below the fold

Forcing Account Creation

This bears repeating because it is the most common and costly mistake. Requiring account creation before checkout completion increases abandonment by 26%. Always offer guest checkout. If you want to encourage accounts, add an option to create one after purchase on the Thank you page.

Surprise Costs at Payment

48% of shoppers abandon when they encounter unexpected costs at checkout. Show shipping costs, taxes, and fees as early as possible — ideally on the product page or in the cart. Use Shopify's shipping calculator on the cart page and enable tax-inclusive pricing if your market expects it. For a full breakdown of recovery tactics when abandonment does happen, see our guide to Shopify abandoned cart recovery strategies.

Not Migrating from Deprecated Tools

If you are on Shopify Plus and still relying on checkout.liquid or Shopify Scripts, the clock is ticking. Checkout.liquid is already unsupported for the core checkout steps, and Scripts sunset on June 30, 2026. Migrate to checkout UI extensions and Shopify Functions now rather than scrambling at the deadline. Lazer Technologies' migration guide provides a detailed walkthrough of the transition process.

Skipping Analytics

Adding trust badges, custom fields, and upsells without tracking their impact means you will never know if they helped or hurt. At minimum, monitor your checkout completion rate (Settings > Analytics > Reports > Sessions by conversion funnel) weekly and correlate changes in the rate with customizations you have deployed.

Your Checkout Customization Action Plan

Learning how to customize Shopify checkout is not about implementing every option at once. It is about prioritizing the changes that match your plan level, your customer base, and your current conversion bottlenecks.

Start here regardless of plan:

1. Verify your branding (logo, colors, fonts) matches your storefront
2. Enable Shop Pay and at least two other express checkout methods
3. Confirm guest checkout is enabled and address autocomplete is active
4. Switch to one-page checkout and monitor conversion for two weeks
5. Add trust badges near your payment form

If you are on Shopify Plus, add these:

1. Audit any remaining checkout.liquid or Scripts usage and plan migration
2. Deploy one checkout UI extension (start with a trust banner or shipping threshold message)
3. Implement a post-purchase upsell on the Thank you page
4. Set up checkout A/B testing with a tool like Intelligems or Elevate
5. Use the Checkout Branding API to fine-tune visual details the basic editor cannot reach

Every percentage point improvement in checkout completion compounds across every visitor, every day. A store doing 100 daily checkout sessions that improves completion from 55% to 60% gains five additional orders per day — that is 1,825 extra orders per year from a single optimization pass.

What checkout customization had the biggest impact on your store's conversion rate? Share your experience with the Talk Shop community — your insight could save another merchant months of testing.

About Talk Shop

The Talk Shop team — insights from our community of Shopify developers, merchants, and experts.