A missed call doesn't show up on any invoice. Nobody bills you for it, and the phone log just shows a number you don't recognize. So it's easy to believe it didn't cost anything.
It did. You paid to make that phone ring, and someone else may have signed the client. This post walks through simple math to put a number on it, using examples you should swap for your own.
Why a missed call isn't free
Think about where your calls come from. Ads, a website you paid to build, a directory listing, referrals you spent years earning. Every inbound call is the end of money and time you already spent.
When nobody answers, three things can happen:
- The caller leaves a voicemail and waits.
- The caller hangs up and calls back later.
- The caller hangs up and calls the next firm.
You don't control which one happens. People calling a lawyer are usually dealing with something stressful, and plenty of them won't wait. We cover the timing side in speed-to-lead for law firms.
The basic formula
Here's the math in one line:
Missed calls × share that are real prospects × share you'd have signed × average fee = revenue at risk
None of these numbers is universal. Your practice area, market and fee structure change all of them. That's why we'd rather show you the formula than hand you a made-up industry average.
An example, start to finish
These numbers are made up for illustration. They aren't benchmarks.
Say your firm gets 150 calls a month. You check your phone system and find that 20 of them went unanswered, mostly at lunch, after five and on weekends.
Not every missed call is a new case. Some are existing clients, vendors or wrong numbers. Say half of those 20 were people looking to hire a lawyer. That's 10 missed prospects.
Not every prospect would have hired you either. Say that out of prospects who reach your firm and book a consult, you'd normally sign 1 in 4. That's 2.5 lost clients a month.
Now say your average fee on a new matter is $3,500.
| Step | Example number | | --- | --- | | Missed calls per month | 20 | | Share that are prospects | 50% | | Missed prospects | 10 | | Share you'd normally sign | 25% | | Clients lost per month | 2.5 | | Average fee (example) | $3,500 | | Revenue at risk per month | $8,750 | | Revenue at risk per year | $105,000 |
That's a lot of money from calls nobody noticed.
Be fair to the math
We don't want to oversell this. A few of those callers will leave a message, and you'll call them back and sign them. A few would never have hired you anyway.
So adjust it. If you think half the missed prospects come back on their own, cut the result in half. In our example that's still more than $50,000 a year. The point isn't the exact figure. It's that the number is rarely small.
The marketing cost you already paid
There's a second cost that's easier to see. You spent money to make those calls happen.
Say your firm spends $3,000 a month on marketing, and it produces 150 calls. That's $20 per call in this example. Twenty missed calls means $400 a month in marketing spend that produced a ring and nothing else.
That's a small number next to the lost fees, but it's money that's already gone. If you track cost per client, missed calls make that number look worse than it should. More on that in cost per signed client.
Costs that don't show up in the formula
Some costs are real but hard to put a number on.
- Referrals that never happen. A client you sign might send you two more over the years. A client you miss sends them somewhere else.
- Staff time on phone tag. Calling back voicemails, leaving messages, calling again. That's hours a week in many firms.
- Urgent matters handled late. A caller with a court date tomorrow who reaches you the next afternoon may have fewer options.
- The caller's first impression. People remember whether a firm answered when they needed it.
Run your own numbers
Here's a quick worksheet. Fill in your own figures.
- Missed calls last month: pull this from your phone system or provider. If you don't know, that's the first problem to fix.
- Share that are prospects: listen to a sample of voicemails or check caller IDs against your client list.
- Your normal signing rate: out of prospects who book a consult, how many hire you.
- Average fee: use a typical new matter, not your biggest case.
- Multiply it through, then cut it by whatever share you honestly think you'd recover with callbacks.
If you want help measuring step one, see missed call rate: how to measure it and fix it.
When the math says act
Compare your yearly revenue at risk with what it would cost to answer every call. If the gap is large, fixing coverage is probably one of the better investments your firm can make this year. If it's small, you may be fine with what you've got, and that's a fine answer too.
Where IntakeGenius fits
IntakeGenius was built by a practicing attorney who watched his own firm lose leads it had already paid for. Our AI voice agent picks up every call, day or night, runs your intake questions and books the consult while the caller is still on the line. Plans start at $299 a month, and you can see the details on our pricing page.
If your numbers came out bigger than you expected, let's talk. It's a 15-minute call with no slides.