Speed to Lead
What a Missed Call Actually Costs
Not an industry average. Four numbers you already have, one formula, and the two adjustments that stop the answer being fiction.
Spent 8 years running operations for a startup studio that launched more than a dozen companies. Leads CRM, automation, AI assistants, websites, and delivery infrastructure at Agency Logics.
Published
The formula
One line, and the discipline is entirely in sourcing the inputs honestly rather than in the arithmetic.
| Input | Where it comes from | Common mistake |
|---|---|---|
| Missed calls in the period | Phone system or CRM call log | Counting calls returned promptly as missed |
| Share that are new enquiries | Hand-sampling 40 to 50 recordings | Assuming all of them are. This is the big one |
| Booking rate | Your CRM, for phone-sourced enquiries | Using a national benchmark instead of your own |
| Average job value | Your invoicing, for phone-sourced jobs | Using your overall average across all channels |
A worked example, with the assumptions stated
The numbers below are illustrative and chosen to be round. They are not a benchmark, and they are not drawn from any client. Substitute your own at every line.
| Step | Assumed value | Running result |
|---|---|---|
| Missed calls in 90 days | 120 | 120 |
| Share that were new enquiries | 45% | 54 enquiries |
| Booking rate on answered enquiries | 40% | 21.6 jobs |
| Average job value, phone-sourced | $2,000 | $43,200 |
| Less recapture, one third reach you later | -33% | About $29,000 over 90 days |
Roughly $29,000 a quarter in this illustration, or about $116,000 annualised. The point of the exercise is not the number. It is that the number is almost always large enough to make the fix obviously worth doing, and that it was invisible before anyone did the arithmetic.
How to run it on your own numbers
Count the missed calls, not the total calls
Pull inbound call records for the last 90 days and count calls that went unanswered and were never returned. Unanswered but returned within the hour is not a missed call, it is a slow one. Your phone system or CRM call log has this.
Find the share that were genuinely new enquiries
Existing customers, suppliers, spam and recruiters are all in that log. Sampling 40 or 50 recordings by hand is enough to get a defensible percentage. This is the step people skip, and skipping it inflates the answer by several times.
Apply your booking rate, not a national one
Of the new enquiries you do speak to, what proportion becomes a booked job? Your CRM knows this. Use your own figure, because booking rates vary enormously by trade, price point and how the enquiry arrived.
Apply your average job value, and be honest about which one
Use the average value of jobs that came from inbound phone enquiries specifically, not your overall average. If you sell both small repairs and large installations by phone, the blended figure is the right one, but it should be the blended figure for that channel.
Discount for the ones who call back or call someone else and return
Not every missed call is lost forever. Some ring again, some leave a voicemail you return. A recapture discount of a third is a defensible starting assumption if you have no data, and it should be replaced with your own as soon as you do.
State the result as a range, not a single number
Every input above has error in it. A range built from a conservative and an optimistic pass on each input is honest and still makes the decision obvious. A single precise figure is false confidence.
Two adjustments that stop the answer being nonsense
- Recapture. A missed call is not automatically a lost customer. Some ring back, some leave voicemail, some you catch on a return call. Without this discount the model overstates badly and loses credibility with the person who has to act on it.
- Capacity. If you are already turning work away, a recovered enquiry does not become incremental revenue, it displaces other work or is declined. Businesses running at capacity should model the value of better jobs replacing worse ones rather than pure additional revenue.
The second adjustment matters more than people expect, and it changes the recommendation. A business at capacity should not be trying to answer more calls, it should be trying to answer the right ones faster and price better. Presenting an uncapped revenue figure to an owner who is already fully booked is how these analyses get thrown out.
What actually reduces it
- Text back every missed number automatically, within seconds. This is the single highest-return change for most businesses, because it returns the effort to you at the moment the caller is deciding who to try next.
- Cover the overnight and weekend gap. Usually the largest single block. What that block looks like.
- Stop relying on voicemail. It shifts work to the caller exactly when they are comparing alternatives.
- Fix the follow-up, not just the pickup. Answering the call and then abandoning the lead after two attempts costs the same money slightly later. The follow-up cliff.
The mechanism for the first two is automated first response, which is genuinely well suited to this narrow job: acknowledging instantly, capturing the detail, and booking when the request is straightforward.
Common questions
- How much does a missed call cost a business?
- It depends entirely on your average job value and booking rate, which is why published single-figure answers are not usable. The formula is: missed calls, times the share that are genuine new enquiries, times your booking rate, times your average job value from phone enquiries, less a discount for the callers who reach you later. For a business with a $2,000 average job and a 40% booking rate, a single genuinely lost new enquiry represents roughly $800 in expected revenue before any recapture discount.
- Why not just use an industry average?
- Because the inputs vary by more than an order of magnitude between trades. A drain-clearing call and a full HVAC replacement call are both missed calls, and treating them as the same number produces an answer nobody in the business believes, which means nothing gets fixed.
- Do missed calls matter more than slow form responses?
- Usually yes, for two reasons. A caller has higher intent than a form filler, because dialling is more effort than typing. And a caller who reaches voicemail will very often simply call the next business on the list, whereas a form submission at least sits in an inbox waiting for you.
- What about the calls that come in after hours?
- They are typically the largest single block of missed calls and the easiest to fix, because the problem is coverage rather than behaviour. Nobody is choosing not to answer at 9pm. See the after-hours page for what that block actually looks like.
- Is voicemail enough?
- Rarely. Voicemail moves the burden onto the caller at the exact moment they are comparing you with alternatives, and a caller with three tabs open will usually try the next number instead of leaving a message. An immediate text back to the missed number performs considerably better in our experience, because it returns the effort to you.
Sources
- 1.Oldroyd, McElheran and Elkington, The Short Life of Online Sales Leads, Harvard Business Review, March 2011 Context for how commonly enquiries go unanswered: 23% of 2,241 audited companies never responded at all.
Run the numbers before you buy a solution to the problem
The four inputs take an afternoon to assemble and they tell you whether this is a five-figure leak or a rounding error. Plenty of businesses find it is the latter, and that is a useful answer too.
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