ROI of AI
How Much Does a Missed Call Cost a Small Business?
A single missed call costs a small service business $120–$600 in lost revenue, on average, when you account for the probability that the caller books with a competitor rather than leaving a message and waiting. At 4 missed calls per week, the annual cost is $25,000–$125,000 — and most small businesses miss far more than 4 calls per week.
To calculate the cost of a missed call for your specific business:
Missed call cost = Average job value Г— Call-to-booking conversion rate for answered calls Г— Probability the caller doesn't wait for a callback
For a plumber: $400 average job value Г— 50% conversion rate Г— 70% don't-wait rate = $140 per missed call
For a hair salon: $95 average appointment value Г— 60% conversion rate Г— 80% don't-wait rate = $45.60 per missed call
For a general contractor: $800 average job value Г— 40% conversion rate Г— 75% don't-wait rate = $240 per missed call
The "don't-wait rate" is the most important variable. Research on service business inquiry behaviour consistently shows that 65–80% of callers who reach voicemail do not leave a message and do not wait for a callback — they call the next provider on their list. The exception is an existing client with an established relationship, where they are more likely to wait. For new client inquiries, the probability of the caller moving on is high.
For most small service businesses, the annual cost of missed calls far exceeds $50,000 once all calls are accounted for — including after-hours calls, calls during busy periods, and calls during weekend and holiday periods.
Common questions
The most accurate method is to compare your total inbound call volume (available from your phone carrier or a call tracking service) to your actual booking count. The gap, adjusted for calls from existing clients and non-booking inquiries, represents your missed lead count. Most businesses that do this analysis for the first time find the gap significantly larger than they expected.
Get Started
See it in action for your business
Tell us what you're working on and we'll show you exactly where automation fits.