The short answer: The most impactful Shopify checkout optimizations are reducing checkout steps, enabling accelerated payment methods (Shop Pay, Apple Pay), showing shipping costs before checkout, and adding trust signals near the payment form. These four changes alone can improve checkout completion rates by 15-30% based on data from 100+ Shopify CRO projects.
Cart abandonment is the single biggest revenue leak for most Shopify stores. I dig into the less obvious reasons in my post on hidden causes of Shopify cart abandonment. According to the Baymard Institute’s aggregated research across 49 studies, the average cart abandonment rate is 70.19%, meaning roughly 7 out of 10 shoppers who add items to their cart leave without buying.
But here’s what most Shopify store owners miss: the checkout is the highest-leverage optimization point on your entire store. Every percentage point improvement in checkout completion applies to every single visitor who adds to cart. The compounding effect over months of traffic is enormous. A store doing $50,000/month with a 35% checkout completion rate that improves to 42% just added $10,000/month in revenue without a single extra ad dollar.
Baymard’s research breaks down the core reasons shoppers abandon: 49% cite extra costs (shipping, taxes, fees), 24% cite forced account creation, 19% cite slow delivery, and 18% cite trust concerns with their credit card information. Every optimization below maps directly to one or more of those reasons.
After completing 100+ Shopify CRO projects over 10+ years, these are the 12 optimizations that consistently deliver the biggest impact on checkout completion rates.
1. Enable Every Accelerated Payment Method
Shop Pay converts 1.72x higher than regular checkout according to Shopify’s public data. Enable Shop Pay, Apple Pay, Google Pay, and PayPal Express on product pages, cart pages, and checkout. For a store processing 5,000 checkouts per month, the difference translates to hundreds of recovered orders.
Shop Pay, Apple Pay, Google Pay, and PayPal Express should all be active. Accelerated payments reduce checkout friction dramatically because they skip address entry and payment form filling entirely.
According to Shopify’s own publicly reported data, Shop Pay converts 1.72x higher than regular checkout. That is not a marginal improvement. For a store processing 5,000 checkouts per month, the difference between a 35% and a 60% completion rate on mobile users who choose Shop Pay represents hundreds of recovered orders.
The reason is simple: Shop Pay stores the customer’s shipping address, email, and payment details. Returning buyers complete checkout in a single tap. Apple Pay and Google Pay work similarly by pulling stored credentials from the device itself, which is especially powerful on mobile where form-filling is painful.
How to implement: Go to Shopify Admin, then Settings, then Payments. Enable all available accelerated checkout methods. For Shop Pay, you need Shopify Payments active as your gateway. For Apple Pay, no extra configuration is needed beyond enabling Shopify Payments. For PayPal Express, connect your PayPal business account under Alternative Payments. After enabling, test each method on a real device to confirm the buttons render correctly in your cart and checkout. Also make sure accelerated buttons appear on your product pages and cart page, not just at checkout, so shoppers can skip the checkout form entirely.
2. Show Shipping Costs Before Checkout
Unexpected costs cause 49% of all checkout abandonment according to Baymard Institute research. Display a shipping calculator on the cart page, show free shipping progress bars sitewide, and state flat-rate shipping directly on product pages. The goal is zero surprises at checkout. One client saw payment-step drop-off fall by 22% after fixing hidden fees.
Unexpected costs are the number one reason for checkout abandonment, cited by 49% of abandoners in Baymard’s research. This includes shipping, taxes, and fees. The worst version of this is when a customer fills out their entire checkout form, enters payment details, and then sees a shipping cost they were not expecting.
I audited a high-ticket accessories store that was silently adding a ~$29 package protection fee to every order. Customers would see a total that was $29 higher than expected at the final step. The store’s checkout abandonment rate at the payment step was nearly double the benchmark. Once we made the protection opt-in and surfaced total cost estimates earlier, payment-step drop-off fell by 22% within 30 days.
How to implement: There are several approaches depending on your setup. First, display a shipping calculator on the cart page using Shopify’s native cart shipping estimator or a Liquid snippet that calls the /cart/shipping_rates.json endpoint. Second, if you offer free shipping above a threshold, display a progress bar sitewide (announcement bar or cart drawer) showing how close the customer is. Third, for flat-rate shipping, state the rate directly on product pages. The goal is zero surprises at checkout. If you use a sticky add-to-cart bar on mobile, consider showing the free shipping threshold there as well.
3. Reduce Checkout Steps
Switch to Shopify’s one-page checkout, which consolidates shipping address, shipping method, and payment into a single scrollable page. Every additional checkout step loses 5-15% of remaining visitors. I still find stores in 2026 running the old three-step flow because the setting was never toggled.
Every additional step in your checkout flow is a drop-off point. Shopify recognized this and in 2023 rolled out a one-page checkout as the default for all stores, replacing the previous three-page flow. This was one of the most significant platform-level conversion improvements Shopify has shipped.
The one-page checkout consolidates shipping address, shipping method, and payment into a single scrollable page. The customer sees the entire process at once, which reduces perceived complexity and eliminates the “how many more steps?” anxiety that drives abandonment.
If your store was created before 2023 or you are on a custom checkout, verify that you are actually using the one-page layout. I have audited stores in 2025 and 2026 that were still running the old three-step flow because the setting was never toggled.
How to implement: Go to Shopify Admin, then Settings, then Checkout. Under Checkout layout, select “One-page checkout.” For Shopify Plus merchants using checkout extensibility, audit every UI extension and custom block you have added. Each element adds visual complexity. Strip anything that is not directly supporting conversion, for example promotional banners, excessive upsell widgets, or redundant trust badge sections. Test the full flow on mobile after changes, as one-page layouts can become very long scrolls on small screens if overloaded.
4. Add Trust Signals at the Payment Step
Place a security indicator, recognized payment logos (Visa, Mastercard, Amex), and a one-line return policy summary adjacent to the payment form. Baymard research shows 18% of shoppers abandon specifically over trust concerns. One client saw payment-step abandonment drop 11% after adding these three elements alone.
The payment step has the highest anxiety and highest abandonment. Baymard’s research shows 18% of shoppers abandon specifically because they do not trust the site with their credit card information. This is not about whether your site is actually secure. It is about whether it looks and feels secure at the exact moment the customer is entering their card number.
A UK DTC skincare brand I worked with had a clean, minimal checkout, but zero trust indicators near the payment form. After adding a small “256-bit SSL encrypted” indicator, recognized payment logos (Visa, Mastercard, Amex), and a one-line return policy summary (“Free returns within 30 days”), their payment-step abandonment dropped by 11% over a 60-day measured period.
How to implement: For standard Shopify stores, trust signals are limited to what Shopify’s checkout allows, which includes payment method logos (enabled automatically) and your store policies linked in the footer. For Shopify Plus, use checkout UI extensions to inject custom trust content. Place these elements adjacent to the payment form, not above or below the fold. The three highest-impact trust signals are: recognized payment logos, a security/encryption indicator, and a brief return policy statement. Avoid cluttering the area with five or six badges, as that can actually reduce trust by looking desperate. For a deeper CRO framework, my Shopify CRO audit checklist covers trust signal placement across the full funnel.
5. Optimize for Mobile Checkout
Mobile checkout completion rates are typically 45-60% lower than desktop. Test on a real phone over a throttled 4G connection, not just Chrome DevTools. Ensure form fields use 16px+ font size (prevents iOS zoom), correct keyboard types appear, and the “Pay now” button is visible without scrolling at the payment step.
Over 70% of Shopify traffic now comes from mobile devices according to Shopify’s commerce trends data, but mobile checkout completion rates are typically 45-60% lower than desktop. My Shopify mobile CRO guide covers the full mobile optimization strategy beyond checkout.
I worked with a UK accessories brand that had a 74.6% drop-off rate between add-to-cart and checkout completion. The primary culprit was their cart drawer implementation. On mobile, the drawer opened but the checkout button was below the fold, requiring a scroll. The product thumbnails in the drawer were oversized, pushing the CTA down. After restructuring the cart drawer to keep the checkout button always visible and adding a sticky checkout bar at the bottom of the drawer, the ATC-to-checkout rate improved by 18%.
How to implement: Test your entire checkout flow on a real mobile device on a throttled 4G connection, not just Chrome DevTools responsive mode. Specifically check: Can the customer tap every form field without zooming? (If not, your font size is below 16px on inputs, which triggers iOS zoom.) Does the correct keyboard appear for each field (numeric for phone and zip, email keyboard for email)? Is the primary CTA (“Pay now” or “Complete order”) visible without scrolling at the payment step? Load your checkout page through Google PageSpeed Insights separately from your storefront and target a mobile performance score of 80+.
6. Enable Guest Checkout
Forced account creation increases checkout abandonment by 20-35%. Set customer accounts to optional in Shopify settings and offer account creation post-purchase on the thank-you page instead. A simple “Save your details for faster checkout next time” prompt with one password field converts well because the customer has already committed.
Forcing account creation before purchase is the second most common reason for abandonment, cited by 24% of shoppers in Baymard’s research. This is one of the easiest fixes on this list and one of the most impactful.
The logic some merchants use is that requiring accounts builds their customer database. In reality, it just filters out first-time buyers who are not committed enough to create a password before they have even received their product. You lose far more revenue from abandoned checkouts than you gain from forced account data.
How to implement: Go to Shopify Admin, then Settings, then Checkout, then Customer accounts. Select “Accounts are optional” or, if available on your plan, “Customers can only check out as guests.” The better approach is to offer account creation after purchase. On the thank-you page, show a prompt like “Save your details for faster checkout next time” with a single password field. This converts well because the customer has already committed and has a reason (order tracking) to create an account. Shopify’s native post-purchase account invitation handles this automatically if you enable it.
7. Optimize Checkout Page Speed
Google research shows bounce probability increases 32% as load time goes from 1 to 3 seconds, and 90% at 5 seconds. Open Chrome DevTools on your checkout, filter by JS, and count third-party scripts. Chat widgets, stacked analytics pixels, and review apps commonly fire on checkout when they should not. Target under 3 seconds on mobile.
Every additional second of load time reduces conversion. Google’s research shows that as page load time increases from 1 to 3 seconds, the probability of bounce increases by 32%. At 5 seconds, it increases by 90%. These numbers apply to checkout pages just as much as landing pages.
The common culprits on Shopify checkout pages are third-party scripts. Chat widgets, analytics pixels, retargeting tags, and review app scripts all add weight. Many merchants do not realize that apps they installed for their storefront are also injecting scripts into checkout.
How to implement: Open your checkout page in Chrome DevTools, go to the Network tab, and filter by JS. Count how many third-party scripts load. Common offenders include live chat widgets (Tidio, Gorgias widget), multiple analytics scripts (GA4 + Meta Pixel + TikTok Pixel + Hotjar all firing on checkout), and review apps injecting unnecessarily. For each script, ask: does this need to fire on the checkout page specifically? Chat widgets rarely get used during checkout. Move non-essential scripts to post-purchase or storefront-only. For Shopify Plus, use the Script Editor or checkout extensibility to control exactly what loads. Target under 3 seconds for checkout page load on a mid-range mobile device.
8. Use Strategic Checkout Upsells (Shopify Plus)
Place upsells post-purchase (after payment, before the thank-you page) where the customer’s payment method is already on file and adding is one tap. Conversion rates on well-targeted post-purchase upsells range from 5-15%. Keep it to a single product offer, and make the “No thanks” option equally prominent.
For Shopify Plus stores, the checkout extensibility API now supports post-purchase one-click upsells. This is a significant revenue opportunity, but implementation matters enormously. A poorly placed or aggressive upsell before the payment step will hurt completion rates more than the upsell revenue is worth.
The safest and most effective placement is post-purchase: after the customer clicks “Pay now” and the order is confirmed, but before the thank-you page loads. At this point, the purchase is complete. The customer’s payment method is already on file. The upsell offer appears as a one-click add with no additional form filling. Conversion rates on well-targeted post-purchase upsells typically range from 5-15% depending on relevance and offer strength.
How to implement: On Shopify Plus, use the post-purchase checkout extension to build a custom upsell page. The extension has access to the order data, so you can dynamically select upsell products based on what the customer just bought. Keep the offer to a single product or a simple choice between two options. Show the price clearly, show what they already purchased, and make the “No thanks” option equally prominent. Do not stack multiple upsell pages, as each additional page degrades the customer experience. For non-Plus stores, post-purchase upsells are possible through apps like ReConvert or AfterSell, which inject an offer page after checkout.
9. Display Clear Delivery Estimates
Show estimated delivery dates, not just shipping method names. “Standard Shipping - $5.99 (Arrives by April 4-7)” converts measurably better than “Standard Shipping - $5.99.” Unclear delivery is cited by 19% of abandoners in Baymard’s research. Display estimates on the product page as well, not just at checkout.
Slow or unclear delivery is cited by 19% of abandoners in Baymard’s data. Showing estimated delivery dates, not just shipping method names like “Standard” or “Express,” reduces purchase anxiety and increases checkout completion.
Customers want to know “When will I get this?” not “How fast does shipping work?” There is a measurable difference between seeing “Standard Shipping - $5.99” and seeing “Standard Shipping - $5.99 (Arrives by April 4-7).” The second version answers the question the customer actually has.
How to implement: For Shopify stores using Shopify Shipping, delivery date estimates can be enabled through the checkout settings. For custom shipping setups, calculate estimated delivery dates using your carrier’s transit time data and display them alongside each shipping option. On Shopify Plus, use a checkout UI extension to render custom delivery estimate text next to each shipping rate. Even a simple Liquid calculation based on order processing time plus carrier transit days (adjusting for weekends) is better than showing nothing. Display delivery estimates on the product page as well, not just at checkout, so the customer knows before they begin the checkout process.
10. Simplify Form Fields
The average checkout has 14.88 form fields, but most can be reduced to as few as 7 according to Baymard’s usability research. Remove or hide company name for B2C stores, collapse address line 2 behind a toggle, and make the phone field optional unless your carrier requires it. Each removed field shortens perceived effort and increases completion.
Every form field is a friction point. Baymard’s checkout usability research found that the average checkout contains 14.88 form fields, but most checkouts could be reduced to as few as 7 fields. That is a lot of unnecessary friction.
Remove every non-essential field from your checkout. Common fields that add friction without value for B2C stores: company name (remove or hide behind an “Add company name” toggle), phone number if not needed for shipping (make optional at minimum), and address line 2 (collapse behind an “Add apartment, suite, etc.” link). Each field you remove shortens the form visually, which reduces perceived effort and increases the likelihood the customer completes it.
How to implement: Go to Shopify Admin, then Settings, then Checkout. Under Form options, set Company name to “Hidden” for B2C stores or “Optional” for B2B. Set Address line 2 to “Optional.” For phone number, set to “Optional” unless your shipping carrier requires it. On Shopify Plus, use checkout extensibility to fully customize which fields appear, hide fields conditionally based on shipping country, and reorder fields for optimal flow. After making changes, run through the checkout on mobile to confirm the reduced form feels noticeably shorter.
11. Implement Address Autocomplete
Google Places address autocomplete reduces form completion time by approximately 20% and cuts address errors that cause failed deliveries. The customer types a few characters, sees their address auto-suggested, and the entire shipping form fills in one tap. This is especially impactful on mobile where typing a full address is tedious and error-prone.
Google Places address autocomplete reduces form completion time by approximately 20% according to Google’s own data. It also reduces address errors that cause failed deliveries, returns, and customer support tickets.
When a customer starts typing their address and sees it auto-suggested, the entire shipping form fills in one tap. This is especially impactful on mobile where typing a full street address, city, state, and zip is tedious and error-prone.
How to implement: Shopify has native address autocomplete powered by Google built into the checkout for most regions. Verify it is working by starting a test checkout and typing in the address field. If suggestions appear, it is active. If not, check your Shopify Admin settings under Checkout and confirm address autocompletion is enabled. For Shopify Plus stores with custom checkout fields, you may need to integrate the Google Places API directly into your checkout extension. The API is free for up to a generous monthly quota and requires adding the Places library plus a few lines of JavaScript to bind autocomplete to your address input field.
12. Add Order Summary Visibility Throughout Checkout
Keep the order summary expanded or always accessible at every checkout step. On mobile, the summary is collapsed by default, and many shoppers enter credit card details for a total they can only partially see. For Shopify Plus, add a sticky order total bar that always shows the total and item count.
Customers should be able to see what they are buying, the quantities, and the total at every step of checkout. A collapsible order summary that is always accessible reduces anxiety and prevents “what am I paying for?” abandonment.
This is especially important on mobile where the order summary is often collapsed by default. Many mobile shoppers scroll through the entire checkout form without ever expanding the summary, which means they are entering their credit card details for a total they can only partially see. Shopify’s one-page checkout handles this better than the old multi-step flow, but the summary is still collapsed on mobile by default.
How to implement: On standard Shopify plans, the order summary behavior is controlled by the checkout layout and cannot be extensively customized. However, you can influence what appears in the summary by ensuring product titles are clear and concise (the summary truncates long titles), variant information is included, and product thumbnails are enabled. On Shopify Plus, use a checkout UI extension to make the order summary expanded by default on mobile, or add a sticky order total bar at the top or bottom of the checkout that always shows the total and item count. Test on a real mobile device to confirm the total is visible without requiring the customer to tap or scroll.
Start With Your Data
Set up a GA4 checkout funnel with these steps: cart view, begin_checkout, add_shipping_info, add_payment_info, and purchase. Identify the step with the highest drop-off rate and optimize that first. A store doing $50,000/month that improves checkout completion from 35% to 42% adds roughly $10,000/month in revenue with zero extra ad spend.
Before implementing any of these optimizations, check your GA4 checkout funnel report. Set up these four funnel steps if you have not already: cart view, begin_checkout, add_shipping_info, add_payment_info, and purchase. Identify which specific step has the highest drop-off rate. That is where you start, optimizing the biggest leak first.
For a broader framework that covers the full conversion funnel beyond just checkout, see my Shopify CRO audit checklist. If your cart abandonment issues start before checkout (cart drawer problems, poor mobile UX on product pages), my post on hidden causes of Shopify cart abandonment and the Shopify mobile CRO guide cover those stages in detail.
If you are not sure how to read your checkout data or need help implementing these optimizations, get in touch for a free checkout audit.
Kaspian Fuad is a Shopify CRO specialist and Liquid developer with 10+ years of ecommerce experience and 100+ completed projects for DTC brands.