A no-show is the only kind of lost revenue that costs you twice. You do not earn the fee, and you paid for the room, the clinician and the front desk to be ready for it anyway. Every other gap in the day can be filled with something; this one was already filled, and then it was not.
Most advice about no-shows starts with reminders. Reminders help, and they are not first. What comes first is knowing your own number, because the size of the problem decides how much friction you are entitled to add to fix it.
Work out what it costs you
Your no-show rate is the share of booked appointments where the patient neither arrived nor cancelled in time to give the slot away. Cancellations are a different problem with a different fix — count them separately or you will treat both with the same medicine.
no-show rate = missed appointments ÷ booked appointmentsThen put money on it. Take the rate over a full month rather than a bad week, and multiply by what a slot is worth to you — not the headline price, but the price minus whatever you did not spend because they never came.
Example
A worked example
- 640 booked appointments last month
- 58 of them missed → 9.1%
- Average slot value €70
- 58 × €70 = €4,060 in one month
- Over a year, roughly €48,000 — about the cost of a full-time hire
Do this before you change anything. Without a starting number you cannot tell whether the thing you did worked, and every clinic that skips it ends up arguing about impressions six months later.
Why people miss appointments
It is worth being specific, because each reason has a different fix and only one of them is solved by reminding somebody harder.
- They forgot. The appointment was booked weeks ago, by phone, and it exists nowhere the patient can see.
- They remembered and could not come. Work, childcare, transport. They would have cancelled if cancelling had been easy.
- They could not reach you. They tried to cancel, the line was busy at lunchtime, and by the evening it felt too late to bother.
- They were not sure they still needed it. Common with follow-ups booked far ahead, when the symptom has settled.
- They never intended to come. Rare, and the only group deposits are actually aimed at.
Notice that three of those five are about the patient failing to reach you, not failing to remember. Clinics tend to spend all their effort on the first line.
Reminders: timing does more than wording
A reminder has one job — to arrive while the patient can still do something about it. Sent an hour before, it is an announcement. Sent two days before, it is a chance to reschedule, which is what you actually want.
Two reminders beat one, and they do different jobs: the first is for rearranging, the second is for turning up.
- 48 hours before — enough room to move it, and enough room for you to fill the slot if they do not.
- Morning of, or the evening before — the one that gets them out of the door, with the address and the time.
Beyond that, more messages do not buy more attendance; they buy people muting you. If you send three, the third is training the patient to ignore the first two. What to write in each one is a longer subject — we set out the messages themselves separately.
Make cancelling as easy as booking
This is the change clinics resist most and it is the one with the best return. The instinct is that if cancelling is easy, more people will cancel. They will. That is the point.
A cancellation two days out is a slot you can sell. A no-show is a slot you cannot. You are not choosing between a cancellation and an attendance — you are choosing between a cancellation and an empty room, because the patient who cannot come is not coming either way.
Practically: put a link in the reminder that cancels or reschedules without a phone call, and make it work at eleven at night, which is when people deal with their admin.
Fill the gap you just created
Easy cancelling only pays off if something happens with the freed slot. A waiting list turns a cancellation into revenue instead of a hole, and it has to be automatic — nobody at a busy front desk is going to ring nine people to fill a Thursday afternoon.
The mechanism that works is dull and specific: when a slot frees, offer it to the people who asked for that day, first come first served, with a short window before it goes to the next person.
If it helps to see one written down rather than described, ours is documented in full — who gets offered the slot, how long they have, and what happens when nobody takes it.
Deposits, and when they cost more than they save
Deposits work. They also filter people, and not always the ones you meant to filter.
They are reasonable where the slot is long, expensive and hard to refill — a two-hour aesthetic procedure, a surgical consultation. They are usually a mistake on a fifteen-minute follow-up, where the deposit is small enough to be worth losing and large enough to make somebody book elsewhere.
If you take deposits, publish the rule where the patient sees it before they pay, and apply it the same way every time. A cancellation policy that is enforced only when the front desk is annoyed is not a policy, and it is the fastest route to a public review about it.
Measure the change, not the feeling
Change one thing at a time and give it a month. Two reminders and a booking link introduced together will certainly move the number, and you will never know which one to keep when the messages start annoying people.
Watch three figures rather than one: the no-show rate, the cancellation rate, and the share of freed slots you managed to refill. The first should fall, the second will probably rise, and the third is what tells you whether that trade was a good one.
| What you changed | What should move | How long to wait |
|---|---|---|
| Two-stage reminders | No-shows down | One month |
| Self-service cancelling | Cancellations up, no-shows down | One month |
| Automatic waiting list | Refilled slots up | Two months |
| Deposits on long slots | No-shows down on those slots only | Three months |
The order worth doing them in
- Measure the rate for a full month, and price it.
- Send two reminders: one at 48 hours, one on the day.
- Put a cancel-and-reschedule link in both.
- Turn on a waiting list so the freed slots refill themselves.
- Only then consider deposits, and only on the slots that are expensive to lose.
The first four cost the patient nothing and cost you nothing except setting them up. Deposits are the only step on this list that can lose you a booking, which is why they come last rather than first.
Common questions
- What counts as a good no-show rate?
- The honest answer is that the benchmark you want does not exist in a form you can use — it swings with speciality, appointment length, how far ahead you book and who your patients are. Your own number last quarter is the only benchmark that means anything. Measure it, change one thing, measure again.
- Do SMS reminders work better than email?
- SMS gets opened sooner, which matters for the day-of reminder. Email carries more — the address, what to bring, a link to reschedule — which matters for the one two days out. Using each for the job it is good at beats arguing about which is better.
- Should we charge for missed appointments?
- Charging after the fact is different from taking a deposit before, and much harder: you are asking somebody to pay for something they did not receive, usually by phone, usually while they are apologising. Most clinics find the collection effort and the goodwill cost outweigh the fee. A deposit on the slots you genuinely cannot refill is the version that works.
- How far ahead should we let patients book?
- The further out an appointment sits, the more likely it is to be missed — circumstances change and the reason for booking may not survive. If your follow-ups are booked months ahead and missed often, shortening the horizon and inviting people to book closer to the time often does more than any reminder.
Read next
Clinic+ does the parts of this that software can do.
Two-stage reminders, self-service rescheduling and an automatic waiting list, in the same system that holds the records and the invoices. Free to start, no card.
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