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What Every Extra Step in a Booking Form Costs
Checkout research puts the ideal form at seven or eight fields while the average runs closer to fifteen, and a little arithmetic shows what the difference can cost a business that takes bookings online.
At a glance
- The Baymard Institute's checkout research puts an ideal form at 7 to 8 fields, while the average U.S. checkout it studied shows 14.88 fields by default.
- Among shoppers who abandoned an online order for a reason other than browsing, 17% said the checkout was too long or complicated and 18% said the site wanted them to create an account.
- For an illustrative business with 200 booking starts a month, six extra steps that each lose 3% of people cost about 281 bookings and $25,250 a year.
The number and where it comes from
The clearest public measurements of form length come from online retail, where the Baymard Institute has benchmarked the checkout flows of large online stores and published the results. Its finding is that an average checkout displays 23.48 form elements by default, 14.88 of them fields to fill in, while an ideal flow needs only 12 to 14 elements, or 7 to 8 fields; the gap is mostly questions the store could ask later or skip.
A booking form is a checkout for time, so the same arithmetic applies. Each field asks the customer to stop, think and type on a phone screen, and every stop is a point where someone who was ready to book decides to finish later and doesn't.
The strongest evidence that small steps change behavior comes from outside retail. In a study of one large U.S. employer published in the Quarterly Journal of Economics, 401(k) participation among employees hired under automatic enrollment was about 86% at three to fifteen months of tenure, compared with 37% among employees hired just before the change who had to sign up themselves; removing a single sign-up step more than doubled the share of people who took part.
A worked calculation
The cost of extra steps depends on how many people start the form, how many finish a short version and how many each extra step turns away. Nobody publishes a reliable loss-per-field figure for service bookings, so the per-step loss below is an assumption to replace with your own data; most booking tools report started and completed bookings, and the ratio between them is the number to watch.
| People who start the booking form each month (Assumption) | 200 |
|---|---|
| Completion with a short form (Assumption) | 70% |
| Extra fields or screens beyond the short form (Assumption) | 6 |
| Share lost at each extra step (Assumption) | 3% |
| Completion with the longer form (Calculated (70% × 0.97⁶)) | 58.3% |
| Bookings lost per month (Calculated (200 × 70% minus 200 × 58.3%)) | 23.4 |
| Bookings lost per year (Calculated (23.4 × 12)) | 281 |
| Average first visit (Assumption) | $90 |
| Revenue given up per year (Calculated (280.6 × $90)) | About $25,250 |
Illustrative example; replace every assumption with your own numbers.
The steps that usually make up those six are easy to spot once the form is opened on a phone. They include a required account and password, a separate screen to choose a provider when most customers have no preference, a full mailing address for a service that happens at the shop, a referral-source question, a birthday field and a long intake questionnaire that could be sent with the confirmation instead.
How you compare
- Field count: fewer than 8 fields puts a booking form in line with Baymard's ideal; more than 15 puts it at or above the retail average.
- Account creation: if a returning customer must log in to book, that single step is the one most worth testing first, since it ranks among the most common reasons for abandoning an order.
- Completion rate: the share of booking starts that end in a booked appointment is your own benchmark; check it monthly and after every change to the form.
The first step is to open your booking page on a phone, count every field and screen, and move one question to the confirmation message this week.
Sources
- Baymard Institute. Cart Abandonment Rate Statistics. Average of 50 studies; U.S. abandonment-reason survey; checkout form benchmark.
- Madrian, B. C. and Shea, D. F. The Power of Suggestion: Inertia in 401(k) Participation and Savings Behavior. Quarterly Journal of Economics 116(4), 2001 (NBER Working Paper 7682).
Related reading: Where Customers Drop Off, Step by Step, According to the Research · Busy Phones Are Usually an Intake Problem: How to Fix Intake First · Online Booking for Small Service Businesses: What to Turn On and What to Leave Off
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