What share of legal malpractice claims are administrative rather than legal errors?

The ABA's Profile of Legal Malpractice Claims 2020-2023, published in 2024, puts administrative errors at nearly 25 percent of all claims and reports the share is rising. Administrative means failing to calendar a deadline, or failing to react to a date already on the calendar. Substantive errors, meaning failure to know or apply the law, are still the largest group at slightly over 50 percent.

Where does the 28.49 percent scheduling figure come from?

Texas Lawyers' Insurance Exchange publishes it, and it comes from the ABA's Profile of Legal Malpractice Claims 1996-1999. It is a sum of two separate categories rather than one. Administrative scheduling errors were 13.25 percent of claims, and failure to know or ascertain a deadline, which the ABA files as a substantive error, was another 15.24 percent. Roughly half of the combined figure is legal judgment rather than clerical work.

Do small firms really account for most malpractice claims?

Yes. In the ABA edition covering 2016-2019, firms of five attorneys or fewer accounted for 62.51 percent of claims, with solo practitioners alone at 32.33 percent, as reported by Lockton Affinity. The 2020-2023 edition still finds most claims coming from firms of five or fewer, although the share held by firms over 500 lawyers rose to 11.10 percent in 2023 from 4.62 percent in the prior study.

Do bar regulators see the same pattern as the malpractice carriers?

They see the same shape from a different angle. The Illinois ARDC docketed 4,706 investigations in 2024 and neglect of a client matter was the single most common grievance at 25 percent. Sixty percent of the lawyers disciplined that year were solo practitioners. A grievance is not a malpractice claim, but the failure underneath is usually the same one, which is that something did not happen and nobody noticed until the client did.

Which practice areas draw the most claims?

In the 2020-2023 ABA study the top five were estate, trust and probate at 13.58 percent, real estate at 13.19 percent, plaintiff personal injury at 12.73 percent, family law at 10.02 percent and collections and bankruptcy at 8.84 percent, as summarized by ALPS. Estate and probate work moved into first place from fourth in the prior edition.

Paperwork causes more malpractice than advice

The American Bar Association's malpractice study asks what a lawyer was actually doing at the moment the claim started, and in the current edition, covering 2020 through 2023, the largest single answer is preparing, filing and transmitting documents, at 35.66 percent. Giving advice, which is the thing everybody pictures when they picture malpractice, is 13.25 percent.

Paperwork beats judgment by better than two to one.

Sitting behind that, the same study puts administrative errors at nearly 25 percent of all claims and says the share is climbing. Administrative means what it sounds like. A deadline nobody ever calendared, or one that was sitting right there and nobody reacted to it on the day. Substantive errors, the real failures to know or apply the law, are still the biggest category at a bit over 50 percent and nobody is claiming otherwise, but the second category is the strange one, because it is enormous and it is boring and there is no CLE built around it.

By practice area the same study puts estate, trust and probate first at 13.58 percent, real estate right behind at 13.19, and plaintiff personal injury third at 12.73 percent. PI claims actually fell against the prior edition, so this is not a thing that is getting worse. It is a resting state.

The firms holding it

In the ABA edition covering 2016-2019, firms of five attorneys or fewer accounted for 62.51 percent of claims, and solo practitioners on their own for 32.33 percent. The current edition still has most claims coming from firms of five or fewer, though it notes the share from firms over 500 lawyers jumped to 11.10 percent in 2023 against 4.62 percent in the previous study.

There is a boring explanation for the concentration and it is almost certainly the right one.

At four hundred lawyers there is a docketing department. Dates are its entire job, a date one person enters gets verified by a second, and when the person who normally handles a matter type disappears for three weeks the dates still land, because they were never her dates in the first place.

At four lawyers the calendar is a person. Usually a very good person, nine years in, knows every file cold. That is a real strength right up until the week she has the flu.

The number everybody quotes is two numbers

If you have read anything at all about calendaring you have hit 28.49 percent. It is one of the most republished figures in the vertical. Texas Lawyers' Insurance Exchange publishes it, and the first thing worth saying is that it is not TLIE's own book of claims, it is the ABA's Profile of Legal Malpractice Claims 1996-1999.

The second is that it is two categories added together, and the ABA kept them apart on purpose.

Administrative scheduling errors were 13.25 percent, and the largest piece of that, at 7.03, is the plain failure to calendar a date somebody already knew about. Failure to know or ascertain a deadline was a separate 15.24 percent, and the ABA files that one as a substantive error.

The distinction is the whole point. Working out which limitations period governs, whether a tolling rule applies, whether the clock started at the injury or at discovery, that is judgment, it belongs to a lawyer, and no calendar has ever fixed it. The other half is not legal work in any sense, just a date somebody already knew about that never made it onto anything.

Those decimals come from claims closed in the late nineties and I would not lean on them. What makes them worth quoting is that the current study lands in roughly the same neighborhood by a completely different route, which suggests the split has held for about thirty years while everything else about practising law changed.

The regulators see the same shape

Carriers see one end of this. Disciplinary boards see the other, and they describe it in nearly identical language.

Illinois docketed 4,706 investigations in 2024, and neglect of a client matter was the single most common grievance at 25 percent. Sixty percent of the lawyers actually disciplined that year were solos.

A grievance is not a claim and neglect is not malpractice, so do not read the two 25 percents as the same measurement. What they share is the event underneath. In both sets of files, the usual way a lawyer ends up in trouble is not being wrong about the law. It is that something did not happen, and nobody noticed until the client did.

Two failures wearing the same coat

One is that the deadline got calculated wrong. Somebody read the statute or the notice or the scheduling order and drew the wrong date out of it. That belongs to a lawyer and it always will.

The other is that the deadline was correct and never got entered, or got entered and on the day nobody looked. Nothing about that requires a law degree, or ten years of practice, or any particular competence at all. It requires only that a specific thing happen on a specific day, whether or not anybody is having a good week.

About half of that famous 28.49 is the first kind. The near-25 percent in the current study is essentially all of the second, and that is the half worth being interested in, because the failure underneath it is a person forgetting, and forgetting is the one thing a system does not do. A system does not have a bad Thursday. It never carries a date around in its head over a long weekend, and it never quietly assumes somebody else already dealt with it.

Everyone already owns calendar software, which is exactly why buying more of it changes nothing. The software is not what fails. What fails is the trip a date takes from a document into the software, and that trip runs on somebody noticing.

Two things about where all this comes from. The ABA reports are paid publications and I read them through carriers' and brokers' summaries rather than buying the books, so every figure above is somebody else's reading of the study and I have named whose. And claims data is insurer-reported, so the uninsured solos are not in it at all, which if anything means the small-firm share is understated rather than inflated.

We build the operational side of this for disability firms, mostly intake and the agency mail that follows a case for years.

Both of those are the same shape as everything above. A date arrives on paper and has to become a date in a system, and every handoff in between is a place where a human being has to notice something. That handoff is where a quarter of the profession's claims live. It is also the only part of the problem that does not need a lawyer to solve.