What a missed call actually costs a small business (with honest maths)

You are under a sink, mid-colour, halfway through a lesson or under a car. The phone rings and you cannot answer it. Some callers may try again; others may book elsewhere. A missed call alone does not tell you which happened.

The short version

There is no verified UK market average used in this guide. Estimate the value of missed enquiries from your own call log, the share that are new enquiries, your booking rate and your job value. The £1,000-a-month figure below is illustrative arithmetic, not a measured average or a prediction for your business.

How many calls do you miss?

Start with your own call log over several weeks. Separate new enquiries from existing customers, suppliers, spam and wrong numbers. Check which missed callers later reached you or booked. Counting every missed call as a lost job would overstate the loss.

What does the caller do next?

A caller might leave voicemail, text, try again or contact another business. Without your own records, you cannot know what share does each. Check whether your voicemail is being used and how quickly you return messages. Our voicemail guide explains how to review that backup without relying on unsupported capture rates.

What is one enquiry worth?

Use your own average job, booking or sale value. Revenue is not profit: materials, travel and the time spent doing the work still cost money. Avoid adding repeat work or referrals unless your records support it.

Work out your own figure in five minutes

Use your phone's call log and booking records. A voicemail is an enquiry to follow up, not automatically a lost sale. Then:

1. Calls missed per week: ___
2. What share are genuine new enquiries? Use your records or label this as an assumption. Multiply.
3. What share of genuine enquiries do you turn into work? Use your own booking rate. Multiply.
4. What is an average job, booking or sale worth to you? Multiply.

Illustrative example, not a UK average: suppose 10 missed calls a week include five genuine new enquiries. Assume one in three would have booked a £300 job if reached, and half of that potential work is genuinely lost rather than recovered through callbacks.

10 x 0.5 x (1 / 3) x £300 x 4 weeks x 0.5 = £1,000 for this four-week example.

Those inputs are chosen to show the method. Change them to match your business. The result is potential revenue under those assumptions, not proven lost income. The calculator uses the same kind of estimate and labels its booking-rate assumption.

Why it keeps happening

The usual options have different trade-offs:

Voicemail - useful only when callers leave details and someone checks and returns messages.
Someone else answering - can help, but they need enough information to handle the enquiry accurately.
A second work phone - gives you another route, but not necessarily time to answer it.
A receptionist or answering service - compare current quotes, coverage and how enquiries are passed back. Costs vary; no market price is assumed here.

Give callers another way to reach you

Make it clear how callers can leave details when you cannot answer. Keep those details together so you can return the enquiry when you are free. No method guarantees that a caller will wait or book.

Cuppa texts missed callers, asks what they need and sends the details to your WhatsApp. The public price is £20 a month. It is one option for handling missed enquiries, not a promise to recover every job.