What Is a Normal Collection Rate for a Law Firm?
CollBox Team
A healthy small or mid-sized law firm collects most of its invoices within 30 days and keeps the rest from aging far past that. The most current benchmark comes from 8am’s July 2026 analysis of several million invoices across tens of thousands of small and mid-sized firms: 63% of invoices are now collected within 30 days, up from 58% in 2024. For the invoices that do get paid quickly, payment is fast, averaging about five days and often arriving the same day the bill goes out. If your firm is well below that 63% mark, or if a large share of your invoices routinely pass 90 days, your collection rate is lagging the market.
But the 30-day number only tells half the story, and the other half is where firms actually lose money.
What do the current law firm collection benchmarks look like?
Here is what the 2026 data says a small-firm AR picture typically looks like.
Roughly 63% of invoices are collected within 30 days, and among those, the median bill is paid the same day it is sent. That is the good news, and it has been improving.
At the same time, the overdue invoice rate is essentially flat at around 52%. In other words, about half of all invoices still go past due at some point, even as the fast half gets faster.
The overdue balances that remain are large and old. According to 8am, total overdue receivables across these firms reached $7.04 billion, the median overdue bill sits 131 days past due, and the average overdue balance climbed 21%, from about $2,800 in 2024 to $3,400 in 2026.
Put together, the benchmark is not a single number. It is a split. A firm doing well collects a healthy majority fast and actively works the rest down before it ages. A firm doing poorly collects the easy invoices and lets the hard ones pile up.
Why is my collection rate improving but my overdue balance still growing?
Because the two things measure different invoices, and this is the most important pattern in the current data.
The 30-day collection rate rewards the front end of billing. Clear terms, online payment, and automated reminders all push the willing client to pay faster, and that is why the number is going up across the industry.
The overdue balance measures the invoices those tools never reach. When a client goes quiet, no reminder or payment link recovers the bill. It just sits and ages, and because average balances are up 21%, the invoices that go bad are bigger than they were two years ago. A firm can post an improving collection rate and a growing write-off pile at the same time. Many are.
“Everyone celebrates the collection rate going up, and it should, that is real progress on the front end. But the 8am data tells a second story that firms miss: the bills that do go unpaid are 21% bigger than they were in 2024 and sitting past 130 days. Your fast invoices got faster while your slow invoices got heavier. If you only watch the 30-day number, you never see the pile growing behind it.” Matt Darner, Co-founder and CEO, CollBox
How can a law firm improve its collection rate?
Improving the front-end number and shrinking the aged pile take two different kinds of work.
For the front end, do the proven mechanics: set explicit payment terms, enable online payment, itemize the work so bills are easy to verify, and offer autopay on larger balances. These move your 30-day rate toward and past the 63% benchmark.
For the aged pile, you need consistent human follow-up on past-due accounts, on a schedule, with a real escalation path. This is the part most firms have no system for, and it is the part that determines whether your overdue balance shrinks or grows.
CollBox is a tech-enabled accounts receivable service built for small and mid-sized law firms, integrating with Clio, MyCase, and Smokeball. It handles the second job specifically: a real person runs the follow-up cadence on your past-due invoices so the aged balance actually comes down while your team stays focused on legal work. To date, CollBox has recovered more than $140 million for law firms.
Frequently asked questions
What is a good collection rate for a law firm? The current market benchmark is about 63% of invoices collected within 30 days, per 8am’s 2026 data. Strong firms clear a healthy majority quickly and keep the remaining balances from aging past 90 days. Firms well under that 30-day figure, or carrying a large share of invoices past 90 days, are underperforming the market.
How long does it take the average law firm to get paid? It splits into two groups. Invoices paid within 30 days now settle in about five days on average, often the same day. But the invoices that go overdue sit at a median of 131 days past due, which drags the firm-wide average out significantly.
Why is my law firm’s collection rate high but cash flow still tight? A high 30-day collection rate can coexist with a large, growing pool of aged receivables, because the two measure different invoices. If roughly half your invoices still go past due and those balances keep climbing, your cash flow reflects the aged pile, not the fast-paying front end.
What is a normal amount of accounts receivable for a small law firm? There is no single right number, but the 2026 data offers a reference point: the average overdue balance per invoice is around $3,400, up 21% since 2024. The healthier signal is not the size of your AR, it is how fast it moves and how little of it ages past 90 days.
Check where your firm stands
If you want to see how your firm compares to these benchmarks, start with the numbers. Run the free CollBox AR Report Card to see where your receivables stand, or schedule a conversation with the team to talk through what to do about the aged balances the benchmarks miss.
