No-show cost calculator
What are no-shows really costing you?
Every empty slot is revenue you can’t get back. Put in your numbers and see the annual cost of no-shows — and how much a simple booking deposit would protect.
What it models
A clear before-and-after on no-shows
No fluff — just the few numbers that actually decide whether a deposit policy is worth it for your business.
Annual revenue lost
Your bookings, no-show rate, and average value turned into a yearly cost figure.
Deposit, your way
Model a flat deposit or a percentage of the booking — in your own currency.
Realistic reduction
You set how much a deposit cuts no-shows, so the model reflects your reality, not a sales pitch.
Revenue protected
Recovered bookings plus the deposits forfeited by the no-shows that remain.
Net annual gain
The bottom line: what you stop losing every year if you require a deposit.
Shareable card
A clean summary you can copy or share with a partner, manager, or accountant.
How it works
Three numbers in, a decision out
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Enter your numbers
Appointments per week, average booking value, your no-show rate, and the deposit you’d charge.
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Calculated in your browser
The math runs locally in JavaScript. Nothing is sent to a server, logged, or stored.
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See the cost — and the fix
Annual loss, revenue protected, and net gain, plus a result card you can share.
From Copper Bay Labs
Free tools to help you ship and run a tidy business
BookDeposit is part of a small suite of browser-based tools from Copper Bay Labs.
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ShipSafe
Will your site get you sued? Checks for ADA accessibility and privacy-law exposure.
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LeakCheck
Did you leak a secret in your code? Finds exposed API keys before you commit.
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ExposureCheck
Is your live site leaking? Scans a running URL for exposed files and headers.
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DepCheck
Are your dependencies risky? Flags vulnerable and abandoned npm packages.
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FAQ
Questions, answered
How is the annual loss calculated?
Bookings per year are your appointments per week times your working weeks. We multiply that by your no-show rate to get the number of missed bookings, then by your average booking value. So if you take 40 bookings a week for 50 weeks at a 15% no-show rate and an $85 average, that’s 2,000 bookings, 300 no-shows, and $25,500 lost a year. Every figure is rounded for display but computed in full.
Where does the “revenue protected” number come from?
When a deposit is required, we assume your no-show rate drops by the reduction percentage you set. The bookings that now show up are worth their full value again. The no-shows that still happen forfeit their deposit instead of costing you the whole slot. Revenue protected is those two pieces added together — recovered bookings plus forfeited deposits.
What reduction percentage should I use?
That’s the honest unknown, which is why you set it rather than us. Asking for money up front reliably reduces no-shows because clients have skin in the game, and many businesses see a large drop — but the exact figure depends on your clientele, your deposit size, and how you communicate the policy. Model a conservative number and an optimistic one, and make your decision on the range.
Do you store my numbers?
No. BookDeposit runs entirely in your browser. The numbers you type are never uploaded, logged, or saved — there’s no backend and no database. Reload the tab and everything is gone. You can even disconnect from the internet after the page loads and the calculator still works.
Is this financial advice?
No. BookDeposit is a planning tool, not financial or professional advice. It gives you a clear estimate to reason with, but it can’t account for your taxes, refunds, chargebacks, seasonality, or how your specific clients will react to a deposit. Treat the output as a starting point for a decision, not a guarantee.
Can you actually collect the deposits for me?
That’s what we’re building. This calculator is the free first step; the paid product takes deposits at the moment of booking, sends reminders, syncs to your calendar, and gives you an embeddable booking widget — so the savings you see here become real. Want early access? Tell us about your business →