Checkout Field Count: Cut to Eight and Stop Losing Orders

The number is 11.3

Baymard Institute's 2024 research puts the average checkout at 11.3 fields, up slightly from 11.4 in 2019. Their finding is that most checkout forms only need eight fields, and the gap is not a design detail. It is lost orders. The average mobile checkout form completion rate is 51.71 percent, against 54.48 percent on desktop, and every field beyond the eight adds another place to quit. The fix is subtraction, not a redesign.

Baymard's abandonment data makes the stakes plain. 69.82 percent of carts are abandoned overall, and 48 percent of shoppers abandon specifically because of extra costs or fees discovered at checkout. Zuko found that 81 percent of mobile users abandon long forms, and mobile is where most shoppers now check out. A form that asks for eleven fields on a phone is a form that loses half its shoppers before the payment step.

The eight fields that decide whether an order can ship and be paid for are the ones that survive: email, shipping address, billing address, payment method, and the shipping method. Everything else is information the store wants, not information the order needs. The company name field, the second address line, the order notes box, and the marketing opt-in are all candidates for removal, and each one removed is a field fewer to quit on.

The phone number costs the most

The phone number is the most expensive field in a checkout form, with the highest time cost and the highest abandonment cost of any field. Zuko's research on form field cost puts the phone number at the top, ahead of address fields, because shoppers read it as a spam risk and the input is slower on mobile than any other field. The form field cost data shows phone number at 3.21 seconds average completion time, the highest of any common field, and the field with the highest abandonment cost.

The fix is not to remove the phone number. It is to make it optional, and to say why you want it. A short note, for delivery updates only, changes the read from spam risk to service. The shoppers who give it are the ones who want the tracking text. The shoppers who skip it are the ones who would have abandoned instead.

The same logic applies to the other expensive fields. Address fields are the second most expensive, and auto-detecting the city and state from the postal code removes most of the cost. The card number field is the third, and auto-formatting it as the shopper types removes the friction of retyping. The pattern is the same every time: the field stays, the work goes away.

What to cut, and what to keep

Cut the fields that do not decide the order. Company name goes unless you sell B2B. The second address line goes, or becomes optional. Order notes go unless you sell custom goods. The marketing opt-in goes to the confirmation page, where the shopper has already bought. Each removal is a field fewer to quit on, and the total is measurable: Zuko estimates that auto-filling fields from the account reduces abandonment by 8.4 percent, auto-detecting city and state from the postal code is worth 2.8 percent, and auto-formatting the card number is worth 6.5 percent.

Keep the fields that decide the order, and make them work harder. Email first, because it is the recovery channel for the abandoned cart. Address autocomplete on, because it removes the slowest typing. Card formatting on, because it removes the retyping. And a guest checkout option, because forcing an account is a field by another name: the password creation step is a field the shopper did not come to fill in.

Measure the result the same way Baymard does: completion rate by device, abandonment rate by field, and time per field. The checkout that asks for eight fields and auto-fills three of them is not a minimal checkout. It is a checkout that respects the shopper's time, and the completion rate is the proof.

Keep reading: Unit prices on product pages: the small print that stops comparison mistakes, On-site search results pages: the page shoppers need and crawlers should not index.

Frequently asked questions

How many fields does the average checkout ask for?

Baymard Institute's 2024 research puts the average checkout form at 11.3 fields, up slightly from 11.4 in 2019, despite years of mobile-first pressure. Their data shows most checkout forms only need eight fields. The rest are information the store wants, not information the order needs.

Why does the field count matter?

Because the gap between 11.3 fields and 8 fields is not design detail, it is lost orders. Zuko found that 81 percent of mobile users abandon long forms, and Baymard found 69.82 percent of carts are abandoned overall. Each field that does not decide whether the order ships or can be paid for is a field a shopper can quit on.

Which field costs the most orders?

The phone number. It is the most expensive field in a checkout form, with the highest time cost and the highest abandonment cost of any field. Zuko's research on form field cost puts phone number at the top, ahead of address fields, because shoppers read it as a spam risk and the input is slower on mobile than any other field.

What is the cheapest way to cut form friction?

The cheapest option is to auto-fill fields from the customer's account or address book, a technique Zuko estimates reduces abandonment by 8.4 percent. Auto-detecting the city and state from the postal code is worth 2.8 percent. Auto-formatting the credit card number as the shopper types is worth 6.5 percent. All three are cheaper than rebuilding the form.