No-Show Cost Calculator
What no-shows cost your appointment book, and what your moves win back.
Your appointment book
What the year costs
Booked and vanished
399 no-shows a year at $85 each — appointments you already won
Never booked at all
832 open slots a year nobody filled — a different problem, covered below
Revenue you keep
2,929 kept appointments
The moves, and what each wins back
A reminder cadence
At 25% fewer no-shows
A deposit policy
Deposits kept on the no-shows that still happen
Waitlist backfill
Enter a refill rate above to see this move
Together
The moves overlap, so this is less than the rows summed. About 300 no-shows a year would still stand.
Reminder default: Robotham et al. 2016, BMJ Open — a 16-study meta-analysis found digital reminders cut missed appointments by 25%.
Email me the chart and an editable pro forma. A pro forma is a worksheet built on your own assumptions rather than last year’s actuals, and this one adds your own deposit and reminder policy, and a staff cost per empty slot that turns lost revenue into lost margin.
Calculations are stored anonymously and feed regional benchmarks; nothing you enter identifies you unless you add an email.
What a no-show costs
The formula is short. No-shows a year times your average ticket equals revenue that walked out already booked. Two chairs at 40 bookable hours a week hold 4,160 appointments a year. Book 80 percent of them and 3,328 are spoken for, and a 12 percent no-show rate means about 399 of those never arrive. At an $85 ticket, that’s roughly $33,900 a year lost from appointments you’d already won.
The quieter hole is usually bigger. In that same book, 832 slots a year were never booked at all, about $70,700 of capacity nobody claimed. The two problems wear the same face on a slow afternoon and have different fixes. A deposit or a reminder polices the vanishing kind. The never-booked kind is a demand question, which is what the marketing break-even calculator is for.
Wondering whether your rate is unusual? Dantas et al. pooled 105 outpatient scheduling studies in Health Policy in 2018 and put the average appointment no-show rate near 23 percent. A single-digit rate already beats most of what has been measured.
It can’t tell you whether anyone wanted the empty slot. The waitlist number is your read of your own demand, and the calculator treats it as exactly that, an assumption worked through honestly. If nobody is waiting on a Tuesday morning, a recovered Tuesday slot recovers nothing.
The reminder default comes from healthcare, because that’s where the careful measurement lives. A clinic is the closest-studied cousin of a salon chair or a dental op, not the same room. Treat 25 percent as a starting point and watch your own rate for a month before you believe it. The math also counts one appointment per provider-hour, so a business running 30-minute slots should double its hours field and everything holds.
A deposit policy that holds
Whether you call it a deposit or a no-show fee, the mechanics are the same. A small payment at booking changes what the appointment means to the person who made it, and it pays you something when they vanish anyway. Keep it proportionate. A $25 hold on an $85 service reads as seriousness rather than as a penalty, and applying it to the visit means a customer who shows up never actually pays it.
The policy holds when nobody can be surprised by it. Say it at booking, repeat it in the reminder, and honor the exceptions you’d want honored — the sick kid, the closed road, and the customer of nine years. A card on file with a stated fee is the gentler cousin and works on the same principle. What the arithmetic above can’t weigh is trust. Regulars who book on a handshake may read a new fee as an insult, and that judgment call is yours, not the calculator’s. If it’s sitting on your desk right now, it’s worth a conversation.
Rather have someone work through this with you?
The assessment is free. I pull your public data and show you what I see, and your numbers stay yours.