A law firm KPI (key performance indicator) is a number you check on a fixed schedule because it changes when intake, marketing or billing starts to slip. For a small firm, the useful list follows the money from the first phone call to the deposit, and has about nine entries.
Quick answer
- Pick four numbers about getting clients: time to first response, share of new inquiries reached, consultations held and signed engagements, the last three by source.
- Add two numbers that tie spend to cases: cost per signed case and fees per signed case, by source.
- Add three numbers about getting paid: utilization, realization and collection (defined below).
- Write next to each one the system it comes from and who pulls it.
- Ignore visits, impressions and lead counts that have no stage attached.
What path does the money take through a firm?
Every KPI worth keeping sits at one of five points on the same path. A number that fits none of them needs an answer to one question: what decision would it change?
Were the new inquiries reached?
Take every call, form and message that arrived last month. The first number is the share of them that a person spoke to, and the second is how long it took for the first reply. Law firm intake goes through what to log and how fast to answer; for this step you only need the two counts.
The phone system holds answered and missed calls, and the form inbox holds everything else. If someone has to compare two systems by hand, do it once a week, not once a quarter.
Did consultations turn into signed engagements?
Two ratios cover this step. Consultation rate is consultations held divided by inquiries reached, and sign rate is engagement letters signed divided by consultations held. Both are worth reading by source, because a referral from a lawyer and a click on an ad are different kinds of caller.
A low consultation rate points at the reply or the scheduling. A low sign rate points at the consultation itself or at the fit between what the firm takes and what the source sends.
What does one signed case cost?
Cost per signed case is the month's spend on a source divided by signed cases from it. Spend comes from the ad account or the invoice. Signed cases come from your intake record, which needs a required "how did you find us" field to do this; the CRM post lists the fields.
Two companions help. Fees per signed case is fees collected on those cases divided by the number of cases. Fees collected per dollar of ad spend is the same fees divided by the spend.
Both arrive late in contingency work, because the fee lands when the case resolves. Until then, count signed cases by source, and if you need a money figure, use an expected value: signed cases times the average fee on your own closed cases of that type, labeled as an estimate.
If the ads are meant to bring signed cases, the ad account should see them. Google Ads can take them back through offline conversion import, which lets you send back each ad click's GCLID (the ID Google gives that click) with the conversion type and the time it happened, and Google Ads records the signed case with the rest of its conversion data (Google, checked 2026-10-17). Offline conversion tracking from a CRM describes the setup.
What do utilization, realization and collection measure?
These three describe billable work, not marketing, and each one picks up where the one before it stops. Firms count them in slightly different ways, so write down your own definition and keep it fixed.
- Utilization: billable hours worked divided by hours available to work. It says how much of a lawyer's time can become a bill at all.
- Realization: hours invoiced divided by billable hours worked. The gap is time written off or discounted before the client sees it.
- Collection: money received divided by money invoiced. The gap is bills not paid yet or not paid at all.
Clio's 2025 Legal Trends Report defines realization and collection the same way and counts utilization against an eight-hour day (Clio, checked 2026-10-17). I leave industry averages out. Your own last twelve months are a better yardstick: a rate that falls two months in a row deserves a look at what changed.
I am not a lawyer or an accountant, and nothing here is legal advice. Whether money in a trust account counts as collected is a question for your bookkeeper, and each state bar sets its own trust account rules.
Where does each number live, and how often should you look?
| KPI | Formula in plain words | Where the data lives | How often |
|---|---|---|---|
| Share of inquiries reached | Inquiries a person spoke to ÷ all inquiries | Phone system, form inbox | Weekly |
| Time to first response | Time from inquiry to first reply, middle value | Phone system, intake log | Weekly |
| Consultation rate | Consultations held ÷ inquiries reached | Intake CRM or calendar | Monthly |
| Sign rate | Signed ÷ consultations held | Intake CRM | Monthly |
| Cost per signed case | Spend on a source ÷ signed from it | Ad accounts, invoices, intake CRM | Monthly |
| Utilization | Billable hours ÷ available hours | Practice management time entries | Monthly |
| Realization | Hours invoiced ÷ billable hours worked | Practice management billing | Monthly |
| Collection | Money received ÷ money invoiced | Practice management, bank | Monthly |
| Fees per signed case | Fees collected on a source's cases ÷ its signed cases | Billing, intake CRM | Quarterly |
The word "middle value" in the second row means the median: line up all the response times and read the one in the center, so a single very late reply does not drag it.
Which numbers should you ignore?
Visits, impressions and clicks say people saw something; they say nothing about whether anyone reached the firm. A count of leads with no stage next to it hides the difference between a spam form and a person with a case. Cost per lead looks cheap when a form lets in spam, and the number rises exactly when the filtering improves.
Keep them as a reference for when you are fixing a page or an ad, and off the monthly list.
How does the list change by practice type?
| Practice | Lean on | Why |
|---|---|---|
| Contingency personal injury | Signed cases by source, cost per signed case, expected value of the month's signings | Fees arrive at settlement or verdict, not at signing |
| Hourly family or criminal defense | Utilization, realization, collection, plus consultation and sign rates | Money follows hours, so unbilled time and unpaid bills are where it leaks |
| Flat-fee estate planning | Sign rate, fees per signed case, time spent per matter | The fee is fixed, so the margin is set by how long the work takes |
Click prices differ between these practices too. The Google Ads Keyword Planner puts the US average cost per click at $147.84 for "personal injury lawyer near me" and $6.02 for "estate planning attorney near me" (Google Ads Keyword Planner estimates for the US, October 2026; a national average, not what a firm will pay). A cost per signed case that makes sense in one practice can be impossible in the other.
What does one month look like with real arithmetic?
Illustrative: every number below is made up for an imaginary two-lawyer hourly family law firm, and none comes from a client.
Billing, for the month: 2 lawyers × 160 available hours = 320 hours. Billable hours worked: 128. Hours invoiced: 112, valued at $300 an hour. Money received: $30,240.
- Utilization = 128 ÷ 320 = 40%.
- Realization = 112 ÷ 128 = 87.5%.
- Invoiced = 112 × $300 = $33,600, so collection = $30,240 ÷ $33,600 = 90%.
Marketing, for the same month:
| Source | Spend | Inquiries | Signed | Cost per signed case |
|---|---|---|---|---|
| Google ad | $3,000 | 40 | 5 | $600 |
| Legal directory | $500 | 6 | 1 | $500 |
- Google ad: 34 of the 40 inquiries reached a person, so share reached 34 ÷ 40 = 85%; 14 consultations, so consultation rate 14 ÷ 34 = 41%; sign rate 5 ÷ 14 = 36%.
- Directory: all 6 inquiries reached, so share reached 6 ÷ 6 = 100%; 3 consultations, so consultation rate 3 ÷ 6 = 50%; sign rate 1 ÷ 3 = 33%.
- If $6,000 has been collected so far on the five ad cases, fees collected per ad dollar = $6,000 ÷ $3,000 = 2.0 to date, and fees per signed case = $6,000 ÷ 5 = $1,200 to date.
Run the review below on this month and the first bad answer is on the ad line: six of its 40 inquiries never reached a person. The directory's lower cost per case rests on a single signed case, too few to move money on.
What order should the monthly review follow?
Ask these in the order the money moves, and stop at the first one that gives a bad answer.
- Did anyone answer? Look at share reached and first-response time.
- Did consultations happen? Look at consultation rate by source.
- Did they sign? Look at sign rate and cost per signed case.
- Was the time billed? Look at utilization and realization.
- Did the money arrive? Look at collection and, for contingency work, the estimate of what is still to come.
If your agency or intake service reports to you, put these to it:
- Does the report show signed cases by source from my own system, not only leads?
- Who checks that the source field is filled for every inquiry?
- Which numbers come from the ad platform, and which from my records?
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Frequently asked questions
What is a KPI in a law firm?
A KPI, short for key performance indicator, is a number you check on a fixed schedule because it moves when something in the firm goes right or wrong. For a small firm it helps to keep two groups: the numbers about getting a client (calls answered, consultations, signed engagements) and the numbers about getting paid (billable time, invoiced time, money collected). Eight or nine numbers are enough.
How do I calculate cost per signed case?
Divide what you spent on a source in the month by the engagement letters signed from that source in the same period. Use the ad invoice or the directory fee as the spend, and the intake record as the signed count. For a source with one or two signed cases, treat the result as a note, not a verdict, and read it again over three months.
Is there a good utilization rate to aim for?
I do not quote one, because the figure depends on how a firm counts available hours and on who is in the count. A partner who also runs the firm and a full-time associate should not share a target. Compare each person's rate with their own previous months and ask what changed when it moves.
How do I track KPIs when my cases pay on contingency?
The fee arrives months after the engagement letter, so a fees-per-ad-dollar figure is always late. Track signed cases by source each month, and add fees collected on those same cases once they close. Until then, multiply signed cases by the average fee on your own closed cases of that type to get a rough expected value, and label it as an estimate.
Do I need a dashboard to track law firm KPIs?
No. A spreadsheet with one row per month and one column per number works, as long as each column has a named source system and a person who fills it. A dashboard helps once those inputs already agree with each other; before that it only draws the disagreement more neatly.
Written by
Alexander Cheberko
Marketing Analytics & Conversion Tracking Engineer, US and Canada, run remotely
- Media buyer on Google Ads and Meta Ads from October 2023 to September 2025, nearly $700K in spend.
- Set up patient conversion tracking for a New York medical practice (anonymized).
- Upwork Top Rated, 5.0 from 20 reviews.