Checkout Optimization: Fewer Steps, More Sales

The checkout is the most important and most fragile part of an online store. A shopper has done everything you hoped — found a product, decided to buy, started to pay — and now a clumsy checkout can undo it all in seconds. Research consistently shows that long, complicated checkouts drive a large share of abandonment, which means checkout optimisation is some of the highest-return work an online store can do. The goal is simple to state and powerful in effect: remove every unnecessary step, field and moment of doubt between the decision to buy and the completed order. This guide shows you how.

Why the checkout matters so much

By the time someone reaches checkout, you've already won the hard part — they want to buy. Losing them here is the most painful kind of loss, because they were so close. The Baymard Institute, which studies checkout usability extensively, finds that a substantial share of abandonment comes from avoidable checkout friction, and estimates large stores could lift conversion meaningfully through better checkout design alone. Every bit of friction you remove recovers buyers who had already decided (the wider picture is in the pillar on why customers abandon carts).

Cut every unnecessary field

The fastest win is removing fields you don't truly need. Every box a shopper has to fill is friction and a chance to give up, yet many checkouts ask for information that isn't required to complete the order. Be ruthless: collect only what you need to take payment and deliver the product. A second address line that's usually blank, a company field, a “how did you hear about us” — cut them or make them optional. Fewer fields means faster checkouts and more completed orders.

Always offer guest checkout

Forcing shoppers to create an account before they can pay is one of the most damaging checkout mistakes, and it's entirely self-inflicted. Many people simply won't, and they leave. Always offer guest checkout, and invite account creation after the purchase, when it costs nothing and some will happily opt in. This single change removes a major barrier for first-time buyers (see guest checkout vs account creation).

Show the full cost, with no surprises

Surprise costs at the final step are the single most cited reason shoppers abandon. If the first time a customer sees shipping is on the payment page, you've broken their trust at the worst moment. Show the complete cost — including delivery — as early as possible, ideally before checkout even begins. Transparency throughout the process prevents the ambush that sends so many buyers away.

Show progress and reduce uncertainty

Uncertainty makes people abandon. A clear progress indicator — “Step 2 of 3” — tells shoppers how close they are to finishing, which keeps them moving. Equally, clear labelling, sensible error messages that explain what went wrong, and obvious next steps all reduce the friction that causes mid-checkout drop-off. The smoother and more predictable the path, the more people reach the end of it.

Make payment easy and trusted

Two things matter at the payment step: choice and confidence. Offer the payment methods your customers actually expect — cards, e-wallets and local options — since a missing preferred method sends a portion away (see payment methods customers expect). And reinforce trust right where money changes hands, with security signals and clear policies, so the final click feels safe (see building trust on your store).

Prioritise mobile checkout

Most checkouts now happen on phones, where small screens and fiddly typing magnify every point of friction. A checkout that's merely acceptable on desktop can be genuinely frustrating on mobile. Large tap targets, minimal typing with autofill, the right keyboard for each field, and fast-loading pages make the difference. Because so many of your abandonments happen here, mobile checkout deserves special attention (see reducing checkout friction on mobile).

Test it as a customer would

The best way to find checkout friction is to experience it yourself. Buy something from your own store on a phone, over mobile data, as a first-time customer. Count the steps and fields, notice every moment of hesitation, and fix what frustrates you — because it frustrates your customers too. Then let your analytics show exactly which step loses the most people, and concentrate your effort there.

Frequently asked questions

The bottom line

Checkout optimisation is about one thing: removing every unnecessary step, field and surprise between the decision to buy and the completed order. Cut fields to the essentials, always offer guest checkout, show the full cost upfront, indicate progress, offer trusted and expected payment methods, and make the mobile experience genuinely smooth. Test it yourself as a customer, use your analytics to find the biggest drop-off, and fix it first. Because shoppers at checkout have already decided to buy, every bit of friction you remove recovers a sale you'd otherwise have lost.

If you'd like a frictionless checkout that recovers more orders, you can explore e-commerce optimisation or get in touch.

References

1. Baymard Institute. “Checkout Usability & Cart Abandonment.” baymard.com.
2. Think with Google. “Mobile Page Speed: New Industry Benchmarks.” thinkwithgoogle.com.