How much does a missed call cost a small business?
The honest answer: it depends on your numbers, not on a statistic from a study of somebody else's business. Here is the whole calculation. It takes four numbers, all of them yours, and about two minutes.
The formula
Missed calls a month × the share who were real customers × your average job value × the share you would have closed
Each piece, in plain terms:
- Missed calls a month. Count them from your phone provider's call log or your phone bill. A normal month, not your best or worst.
- The share who were real customers. Not every missed call is a job — some are wrong numbers and robocalls. Estimate honestly; for most shops, somewhere around half is a reasonable starting guess, and you can sanity-check it against how many of your answered calls are real.
- Your average job value. Add up last month's invoices and divide by the number of jobs. Salons and groomers: use your average ticket.
- The share you would have closed. Of the real callers who reach you, how many book? If you close about one in three estimates, that share is one third.
A worked example — a plumbing shop
These are example assumptions, labeled so you can swap in your own. Say a two-truck plumbing shop misses 25 calls in a month — nights, weekends, and the hours both techs are under a house. Half of those callers were real job requests. The average job is worth $380. The shop closes about one in three of the people it actually talks to.
25 × ½ × $380 × ⅓ ≈ $1,583 a month — about $19,000 a year
Run the same math for a salon that misses 40 calls a month, with an $85 average ticket, half the callers real, and half of those booking: 40 × ½ × $85 × ½ = $850 a month. The numbers change with the business. The shape of the leak does not.
Run it on your shop
- Missed calls last month: ______
- Share who were real customers (start with ½ if you are unsure): ______
- Your average job value or ticket: $______
- Share you close when you reach them: ______
- Multiply the four. That is the money currently decided by whether a phone gets answered.
Our free one-page Missed-Call Revenue Checklist walks the same count in checklist form, including how to find the hours your leaks happen.
Why the calls get missed in the first place
Almost never carelessness. You are on a job with your hands full. It is 7 pm and the shop is closed but the problem is not. It is the lunch rush, or your one line is busy with another customer. Callers with a leak, a toothache, or a dead car do not wait politely — they call the next name on the list. The cost is not the missed call; it is the silence after it.
What plugging it looks like
Three moves, in order. First, see the leak: the count above, monthly. Second, rescue fast: every missed call gets a callback or a text within the hour — or instantly, with an automatic missed-call text-back. Third, stop missing the important ones: coverage for the hours you cannot answer, human or AI. That third step is what The Mayor is: an AI front desk that answers, texts back, and books while you work. See how it works.
Common questions
Does every missed call cost money?
No. Some missed calls are wrong numbers, robocalls, or people who would never have booked. That is why the formula only counts the share who were real potential customers — and of those, only the share you would realistically have closed.
How do I count my missed calls?
Pull a week or a month of call history from your phone provider, your phone bill, or your phone app, and count the calls that rang unanswered. Use a normal week, not your best or worst one.
Can I recover all of that money?
Realistically, no — some callers have already hired someone else by the time anyone responds. The point of the math is not recovering every dollar. It is seeing whether the leak is big enough to be worth plugging, then plugging the parts you can: faster callbacks, an automatic text-back, and coverage for the hours you cannot answer.