What missed calls really cost UK small businesses

The headline number

At the start of October, research commissioned by BT Business put a figure on something most small business owners have felt for years. It estimated that UK small and medium-sized enterprises lose £3.7 billion a year through missed calls. Broken down, the press release says that is about £71 million a week.

It is a big, round, headline-friendly number, so it is worth being clear about how it was made. The researchers, Censuswide, asked 1,500 decision makers at UK firms with fewer than 250 staff, across all 12 UK regions, to estimate what missed calls cost them. Those answers were then scaled up using the government's own count of UK businesses. The release itself describes the total as "based on respondents' own estimates" and "indicative". That is honest, and it is how we would describe it too.

What it looks like for a small firm

The more useful figures are the ones per business. For a firm with 1 to 9 employees, the estimated loss was £1,597 a year. For firms with 10 to 49 employees, it was £3,753 a year.

Those numbers will be far too high for some businesses and far too low for others. A dog groomer who misses a call about a routine trim loses less than a roofer who misses a call about a full re-roof. But the shape of the problem is the same: the call you miss is rarely the customer who would have waited.

Two thirds miss calls every day

According to the same research, 67% of SMEs said that on an average day they miss at least one call they believe results in lost business. 58% said they spend between 30 minutes and two hours a day answering the phone, and 85% said answering calls interrupts their other work.

That last figure is the real tension. The phone is how customers reach you, but it also pulls you away from the work that pays. In the consumer survey, phone calls came out as the number one preferred way to contact a business.

Three tries, then they stop

The consumer half of the study surveyed 2,000 UK adults. 75% said they give a business three call attempts before giving up. And 58% said they would tell friends and family to avoid a business that failed to pick up.

Three tries sounds generous until you think about a normal working day. If you are on a job from 8 until 5, three calls in a morning can easily all go unanswered. By lunchtime, that customer has rung someone else.

It isn't a new problem

Older studies point the same way. A 2016 report by the call-answering company Moneypenny, based on a survey of 300 UK micro businesses and its own call data, found that 69% of callers who reached a voicemail hung up rather than leave a message. In the same report, 30% of the small businesses surveyed let calls go to voicemail or ring out.

Ten years apart, different methods, the same message: when nobody answers, most people don't wait.

What you can do about it

You don't need to hire a receptionist to fix most of this. A few practical steps:

1. Know your gaps. Check your phone's call log for a fortnight. When do the missed calls cluster? First thing, lunchtime, evenings?
2. Make the voicemail work harder. If you rely on voicemail, use a short greeting in your business name that tells callers when you will ring back. But expect many callers to hang up anyway.
3. Divert when you're busy. Every UK network lets you forward calls when you don't answer. Our call divert guides walk through it for EE, Vodafone, O2, Three and landlines.
4. Have something answer. An AI receptionist answers in a natural, clear voice, tells the caller the call is recorded, takes their name, number and what they need, and emails you a summary straight away, followed by the recording and transcript. You ring back with the details in front of you.

If you work in a trade, our AI receptionist for trades pages cover how this works for plumbers, electricians, roofers and more.

Sources

• BT Business / Censuswide, press release on £3.7 billion lost through missed calls, BT newsroom, 1 October 2026. SME survey of 1,500 decision makers (23 to 28 September 2026); consumer survey of 2,000 UK adults (23 to 25 September 2026). Commissioned by BT Business.
• Moneypenny, "Small business call report", 21 November 2016. Survey of 300 UK micro businesses plus call data. Commissioned by Moneypenny, a call-answering company.
• Department for Business and Trade, Business population estimates 2025, 2 October 2025.