Law Firm KPIs: The Financial Metrics Every Firm Should Track
A law firm can have a record year for billable hours and still be short on cash. Time was recorded but not billed for weeks. Invoices went out but sat unpaid. Discounts at pre-bill quietly cut what the firm actually earned. None of this shows up in the hours report. It shows up in the financial KPIs.
This guide covers the law firm KPIs that matter most on the money side: revenue, billing and collection, cash flow, profitability, productivity, and trust accounting. For each one, you'll find what it measures, how to calculate it, a simple example, and what it usually means when the number moves. It's written for the managing partners, CFOs, controllers, and firm administrators who are responsible for the firm's numbers.
What are law firm KPIs?
Law firm KPIs (key performance indicators) are the numbers a firm tracks regularly to see how well it's performing. Financial KPIs focus on money: how much work turns into revenue, how fast the firm gets paid, how much it costs to run, and how much profit is left.
KPIs are different from reports. A report tells you what happened last month. A KPI is a small set of numbers you watch over time, with a target, so you can spot a problem early and act on it. Most firms do better tracking 8 to 12 well-chosen financial metrics than trying to follow 50.
Revenue KPIs
Revenue KPIs show how much money the firm is bringing in and where it comes from.
Revenue billed and collected
Track two revenue numbers every month: what the firm billed and what it actually collected. Billed revenue shows the work invoiced. Collected revenue is the money in the bank. The gap between them is where cash flow problems start.
Look at both by month, by practice area, and by client, and compare them with the same month last year to account for seasonal swings.
Revenue per lawyer
Formula: total collected revenue ÷ number of lawyers
Example: A firm that collected $9,000,000 with 30 lawyers has revenue per lawyer of $300,000.
Revenue per lawyer is a quick way to compare the firm year over year and to see whether growth in headcount is bringing in matching revenue. If headcount rises and revenue per lawyer falls, new hires aren't yet fully productive, or the firm doesn't have enough work to support them.
Average fee per matter
Formula: total collected revenue from closed matters ÷ number of closed matters
Example: If the firm closed 120 matters this year and collected $3,600,000 from them, the average fee per matter is $30,000.
Track this by practice area. It shows which types of work bring in the most per matter and helps with pricing flat-fee work and forecasting revenue from new matters.
Billing and collection KPIs
These KPIs show how much of the work lawyers record actually turns into money. They're where most firms find their biggest leaks.
Billing realization rate
Formula: amount billed ÷ value of time worked at standard rates
Example: Lawyers recorded $500,000 of time at standard rates this quarter. After write-downs at pre-bill, the firm billed $440,000. Billing realization is 88%.
A low billing realization rate means time is being cut before it reaches the client. Common causes are vague time entries, work on matters that went over budget, discounts given without approval, and flat fees priced too low. Track it by timekeeper, practice area, and client to find where the cuts happen. Our guide on how to improve your law firm's realization rate covers the fixes.
Collection realization rate
Formula: amount collected ÷ amount billed
Example: The firm billed $440,000 and collected $418,000. Collection realization is 95%.
A low collection rate points to clients who dispute bills, slow follow-up on overdue invoices, or invoices that clients find hard to understand.
Multiply the two rates together and you get overall realization: how much of the value of work done ends up as cash. In this example, 88% × 95% = about 84%. The firm collected roughly 84 cents for every dollar of time recorded.
Small changes here are worth a lot. On $2,000,000 of billed work, every 1% of realization is $20,000.
Write-downs and write-offs
A write-down is time or cost reduced before the invoice goes out. A write-off is an amount already billed that the firm gives up on collecting. Track both as dollar amounts and as a percentage of time worked, by matter and by responsible attorney. Rising write-offs often mean collections follow-up is too slow. See how to write off bad debt at your law firm for how to handle invoices you can't collect.
Unbilled time and costs
Unbilled time, often called work in progress or WIP, is time recorded but not yet invoiced. Unbilled costs are expenses paid on a matter but not yet billed to the client. Both are money the firm has already spent effort or cash on but hasn't asked to be paid for.
Check unbilled balances monthly by matter and by age. Time unbilled for more than 60 or 90 days gets harder to bill and harder to collect. Our guide on what WIP is at a law firm explains this in more detail.
Cash flow KPIs
Cash flow KPIs show how long it takes for work to turn into cash, and whether the firm has enough cash to run.
Days to bill (WIP lockup)
Formula: unbilled WIP balance ÷ average value of time worked per day
Example: The firm has $600,000 of unbilled WIP and records about $20,000 of time per day. Days to bill is 30.
This shows how long work sits before it's invoiced. A rising number usually means late time entry, slow pre-bill review, or matters billed only at the end. Our post on the law firm billing process covers how to shorten each step.
Days to collect (debtor lockup)
Formula: accounts receivable balance ÷ average amount billed per day
Example: The firm has $900,000 in accounts receivable and bills about $20,000 per day. Days to collect is 45.
This shows how long clients take to pay after they're billed. It rises when payment terms aren't enforced, reminders aren't sent, or clients have no easy way to pay online.
Total lockup
Formula: days to bill + days to collect
Example: 30 + 45 = 75 days of lockup.
Total lockup is the number of days between doing the work and getting paid for it. During that time, the firm pays salaries and rent with its own money. Cutting lockup frees up cash without bringing in a single new client.
Accounts receivable aging
AR aging sorts unpaid invoices by how long they've been outstanding: current, 31 to 60 days, 61 to 90 days, and over 90 days. Watch the share of AR over 90 days most closely. Those invoices are the hardest to collect and the most likely to be written off. Here's how to read your AR aging report and turn it into collected cash.
Operating cash and cash runway
Formula: operating cash on hand ÷ average monthly operating expenses
Example: The firm has
This tells you how long the firm could keep paying its bills if collections slowed down. Only count operating cash. Money in the trust account belongs to clients and never counts toward the firm's cash.
Profitability KPIs
Revenue shows what comes in. Profitability KPIs show what's left after the firm pays for everything.
Profit margin
Formula: (revenue − expenses) ÷ revenue
Example: The firm collected $9,000,000 and spent $6,300,000. Profit is $2,700,000, and profit margin is 30%.
Profit is a dollar amount. Profit margin is a percentage. Tracking the margin lets you compare years even as the firm grows. A falling margin means costs are rising faster than revenue, or the firm is taking on work at prices that don't cover the cost of doing it.
Overhead ratio
Formula: overhead expenses ÷ revenue
Example: Overhead (rent, staff salaries, technology, insurance, and other costs not tied to lawyer pay) is $2,700,000 on $9,000,000 of revenue. The overhead ratio is 30%.
Track overhead monthly and by category. A rising ratio is often the first sign that costs have grown faster than the work coming in.
Profit per partner
Formula: net profit ÷ number of equity partners
This is the number most partners watch, but it can rise for the wrong reasons, such as reducing the number of partners. Read it alongside profit margin and revenue per lawyer, not on its own.
Profit margin per matter
Formula: (fees collected on the matter − cost of the time spent on it) ÷ fees collected
To use this, you need a cost rate for each timekeeper: their salary plus benefits, divided by their yearly working hours. You can add a share of overhead for a more complete number.
Example: A matter brought in $40,000. The time spent on it cost $26,000 at cost rates. Profit margin on the matter is 35%.
This is the most useful KPI for pricing. It shows which matter types, clients, and fee arrangements actually make money, which is especially important for flat-fee and contingency work. For a full walkthrough, see how to calculate and track matter profitability.
Budget vs. actual
Compare each month's revenue, expenses, and profit to the budget, to the same month last year, and to the rolling 12-month total. Budget vs. actual shows whether the firm is on track for the year early enough to change course.
Productivity KPIs
Every financial KPI above depends on lawyers recording their time. Productivity KPIs show whether that time is being recorded and used well.
Utilization rate
Formula: billable hours ÷ available working hours
Example: An associate had 1,800 available hours this year and recorded 1,400 billable hours. Utilization is about 78%.
Set targets by role. Partners spend more time on management and business development, so their utilization will be lower than an associate's. Low utilization can mean there isn't enough work, or that billable time isn't being recorded.
Billable hours per timekeeper
Track billable hours recorded each month for every timekeeper against their target. Look at trends over a quarter, not a single week. A steady drop is worth a conversation. A sudden drop may just be vacation or a trial ending.
Time entry compliance
Formula: time entries submitted on time ÷ total time entries
Example: If 600 of 800 entries this week were entered within one business day, time entry compliance is 75%.
Late time entry is the root of many other problems. It slows billing, lowers realization because late entries are vague and get cut, and makes every other KPI less accurate. Our guide on how to track billable hours covers how to fix it.
Trust accounting KPIs
Most KPI lists leave out the trust account. For a law firm, that's a mistake. Trust problems don't hurt profit directly, but they can lead to bar complaints, audits, and discipline. These metrics belong on every firm's monthly review.
Three-way reconciliation completed on time
Track whether the monthly three-way reconciliation (bank statement, trust journal, and total of client ledgers) was completed and reviewed by the deadline your firm sets. A reconciliation that's late or skipped is the clearest early warning sign. Our guide to three-way reconciliation for a trust account explains the process.
Unresolved reconciliation differences
Track the number and dollar amount of differences that haven't been explained or fixed. The target is zero. Any difference that carries over from one month to the next needs to be looked at right away.
Unapplied and inactive trust balances
Track trust money that hasn't been applied to an invoice even though fees are earned, and client balances with no activity for a long period. Earned fees left in trust can be commingling. Money sitting for months on a closed matter should be refunded to the client or handled under your state's unclaimed funds rules.
Negative client ledger balances
Track any client ledger that goes below zero. A negative balance means the firm paid out more for a client than that client had in trust, using other clients' money. The target is always zero.
If you want to know who earns interest on these balances, see our guide on who gets the interest on a law firm trust account.
How to choose which law firm KPIs to track
You don't need every metric in this guide. Pick the ones that answer the questions your firm actually has.
Start with a short list
If you're starting from scratch, these eight cover most of what a firm's leadership needs to know:
- Revenue billed and collected
- Billing realization rate
- Collection realization rate
- Total lockup
- AR over 90 days
- Profit margin
- Utilization rate
- Three-way reconciliation completed on time
Add more only when you have a question these can't answer, such as which practice area is most profitable.
Measure where you are before setting targets
Use the last 12 months of data to see your current numbers before choosing targets. Industry reports publish benchmarks for metrics like utilization, realization, and lockup. They're useful for context, but your own trend over time matters more than how you compare to the average firm.
Give each KPI an owner
A number with no owner rarely improves. A common split looks like this:
- CFO or controller: realization, lockup, profit margin, overhead, cash runway, budget vs. actual
- Billing manager: days to bill, AR aging, collection rate, write-offs
- Practice group leaders: utilization, billable hours, profit per matter
- Firm administrator: time entry compliance
- Trust account manager: reconciliation status and trust balances
Set a review schedule
Not every KPI needs the same attention. Review time entry compliance and AR over 90 days weekly. Review realization, lockup, utilization, cash, and trust reconciliation monthly. Review profit margin, profit per matter, and revenue per lawyer quarterly.
How to build a law firm KPI dashboard
A KPI dashboard puts your most important numbers on one page so leadership can see the firm's position in a few minutes. Keep it simple:
- One page, with no more than 8 to 12 KPIs
- For each KPI: this month's number, the target, last month, and the same month last year
- A clear mark next to anything outside its target range
- The owner's name and the next action for anything off target
- The ability to break each number down by practice area, attorney, or client
The dashboard is only as good as the data behind it. If time is entered late, payments are recorded in a separate tool, or the books close weeks after month-end, the numbers on the dashboard will be late or wrong. A clean month-end close comes first.
Common law firm KPI mistakes
Tracking too many metrics. Fifty KPIs means nobody acts on any of them. Start with eight.
Ignoring the quality of time data. Realization, utilization, lockup, and profit per matter all depend on time entries. If time is entered late or inaccurately, every one of those numbers is wrong.
Looking at one number on its own. Pushing utilization up while realization falls just means more time gets recorded and then cut. Read related KPIs together.
Mixing up profit and margin, or billed and collected. Use the same definitions every month, write them down, and make sure everyone uses them the same way.
Counting trust money as firm cash. Client money in trust is never part of the firm's cash position or revenue until it's earned and moved to operating.
Reviewing without acting. If a KPI is off target two months in a row, someone should own a specific fix with a date.
How LawAccounting helps you track law firm KPIs
Most firms struggle with KPIs because the numbers live in different places. Time is in one tool, billing in another, payments in a third, and the general ledger somewhere else. Someone pulls reports from each system every month and builds a spreadsheet, and by the time it's ready, the numbers are weeks old.
LawAccounting keeps that data in one platform. Time and Expense Tracking, Billing and Invoicing, Online Payments, Trust Accounting, and Banking and Reconciliation all feed the same books, so Financial Reporting draws from one set of numbers. Firm administrators and finance leads can see revenue, billing, collections, and trust balances without exporting and combining reports by hand.
Our post on legal accounting software vs. practice management software explains why this matters as a firm grows.
See how LawAccounting reports on your firm's financial KPIs.
Book a demoFrequently asked questions
What are the most important KPIs for a law firm?
The most important financial KPIs for most firms are revenue billed and collected, billing realization rate, collection realization rate, total lockup, AR over 90 days, profit margin, and utilization rate. Law firms should also track whether the monthly trust account reconciliation is done on time.
What is the difference between billing realization and collection realization?
Billing realization compares what the firm billed with the value of time worked at standard rates. Collection realization compares what the firm collected with what it billed. Multiplying the two gives overall realization, the share of recorded work that turns into cash.
How do you calculate realization rate for a law firm?
Billing realization rate is the amount billed divided by the value of time worked at standard rates. If lawyers recorded
What is lockup in a law firm?
Lockup is the number of days between doing the work and getting paid. It's the sum of days to bill (how long work sits unbilled) and days to collect (how long invoices sit unpaid). Lower lockup means faster cash flow.
What is a good utilization rate for a lawyer?
It depends on the role and the firm. Associates usually have higher utilization targets than partners, who spend more time on management and business development. Set targets by role based on your firm's own history, and check industry reports for context.
How often should a law firm review its KPIs?
Review time entry compliance and aged receivables weekly. Review realization, lockup, utilization, cash, and trust reconciliation monthly. Review profit margin, profit per matter, and revenue per lawyer quarterly.
What is a good profit margin for a law firm?
It varies by practice area, firm size, and how partner pay is counted. The more useful question is whether your margin is steady or improving year over year, and which practice areas and fee types are pulling it up or down.
What financial metrics should small law firms track?
Small firms can start with five: revenue collected, collection rate, AR over 90 days, operating cash on hand, and monthly trust reconciliation status. Add realization and utilization once time tracking is reliable.
Should trust account funds be included in law firm KPIs?
No. Money in the trust account belongs to clients and should never be counted as firm revenue or cash. Firms should track trust metrics separately, such as reconciliation status, unresolved differences, and inactive balances, as compliance KPIs.
What tools help track law firm KPIs?
Most KPIs come from time tracking, billing, payments, and accounting data. When these are in one legal accounting system, the firm can report on KPIs without pulling data from several tools into a spreadsheet each month.
Start with the numbers you can trust
The right law firm KPIs show where money is lost between doing the work and getting paid: time that's cut at pre-bill, invoices that sit unpaid, costs that grow faster than revenue, and trust balances nobody is watching. Start with eight KPIs, measure where you are today, give each one an owner, and review them on a set schedule.
Most of all, make sure the data behind them is reliable. Accurate time entry, timely billing, and books that close on schedule matter more than any dashboard.