Why this matters more in hygiene than almost anywhere else
A hygiene clinic sells time in fixed blocks. A missed forty-five minute appointment is not a delay, it is revenue that cannot be recovered, because you cannot refill a slot at an hour's notice when your patients book weeks ahead.
A single-surgery clinic losing two appointments a week to no-shows is losing a meaningful part of its month. That is why the policy is worth twenty minutes of thought rather than a line copied from another practice's website.
Start with the notice period, not the money
The notice you ask for should be the notice you could realistically use. Twenty-four hours is common and easy to remember. Forty-eight hours gives you a genuine chance of refilling from a waiting list, and is fair for longer appointments.
Pick one number and apply it to everything. Two different windows for two appointment types produces arguments at the desk and a confused page on the website.
Then decide the mechanism
There are three that work, and they suit different clinics.
A deposit taken at booking. A fixed amount, or a proportion of the visit, paid when the appointment is made and taken off the bill on the day. Straightforward, visible, and it filters out the bookings that were never serious.
A card held on file. Nothing is charged at booking, but a stored card can be charged if the appointment is missed. Less friction at the point of booking, but it depends on your payment provider supporting it properly and on the consent being taken correctly.
A late-cancellation fee with no deposit. You invoice after the event. Least friction, weakest enforcement, and the one most likely to end in an awkward conversation.
Many clinics use a middle path: no deposit for established patients, a deposit for new patients and for longer appointments, and a deposit reinstated for anyone who has missed twice.
How much
Market practice for appointment deposits in small clinics sits somewhere around a quarter to a half of the visit price, and plenty of clinics use a flat figure instead, often in the region of $20 to $50, or roughly £20 to £40. Enough to make the appointment feel real, not so much that a first-time patient hesitates.
Whatever you choose, the deposit comes off the bill. A deposit that feels like a booking fee costs you new patients.
Write the policy in four sentences
Long policies do not get read and do not get enforced. Aim for something like this shape, in your own words: how much notice you need, what happens if you get it, what happens if you do not, and how to reschedule.
Say what you will actually do. If you routinely waive the fee for illness or a family emergency, say that you use discretion rather than pretending to be inflexible, and people will tell you the truth when they ring.
Where the words go on the website
On the booking flow, above the form, in one line with a link to the full policy. This is the only place everyone reads.
On the price list, under the prices, because it is part of the cost of the visit.
In the confirmation and the reminder message, which are read far more carefully than any page on your site.
On a short policy page, linked from the footer, carrying the full version.
The same words in all four places. Different phrasings in different places is how a clinic ends up unable to enforce its own terms.
Let the booking tool do the enforcing
Dentally, Software of Excellence, Cliniko, Jane, Acuity and Square Appointments differ in what they support for deposits, stored cards and automated cancellation rules, and the specifics vary by plan and country, so check with the vendor rather than assuming. Where the tool can take the deposit and apply the window automatically, use it. A rule the software enforces is never a personal argument.
Configure the reschedule route as carefully as the cancellation one. A patient who can move an appointment in two taps will move it rather than silently not turn up, and a moved appointment costs you nothing.
Reminders do more than any fee
The cheapest way to reduce no-shows is a reminder at a sensible interval, usually a couple of days before with a one-tap reschedule link. Most missed appointments are forgetting rather than defiance, and a policy is no substitute for a message.
Check the reminders are actually sending once a month. They stop silently after software updates, and a clinic often discovers this through a run of no-shows rather than through any warning on a screen.
The regulatory and consumer note
Cancellation charges, stored card consent and how terms must be presented are covered by consumer and data protection rules that differ by country, and your dental regulator or indemnity provider may have views on how fees are advertised. Have your terms looked at locally before publishing them. This is orientation, not legal advice.
Where this sits
A clear deposit and cancellation policy, written once and carried through the booking flow, the price list and the reminder messages, is part of how we build a hygiene clinic website, and the same pattern runs through our dental practice websites. Packages are on pricing. Set the window, let the software enforce it, and send the reminder that means you rarely have to.