Most new solos treat malpractice insurance as a box to check after they've picked a logo and printed business cards. It sits on the to-do list somewhere below "order letterhead" and above "figure out a phone system." That ordering is backwards. The day you accept your first client, you've created the exact thing this policy exists to protect — a relationship where someone is relying on your judgment and can sue you if they believe that judgment cost them money.
This is the one purchase where being cheap or slow can end the practice you just started. Here's what you're actually buying, how the coverage works, and the mistakes that catch new solos.
You probably need it even if your state doesn't make you
Professional liability insurance — also called legal malpractice insurance or errors-and-omissions (E&O) coverage — pays to defend you when a client (or former client) claims your work fell below the standard of care and harmed them. It covers the defense costs, which are real even when the claim is meritless, and any settlement or judgment up to your policy limits.
Whether you're required to carry it is a state question, and the answer is genuinely different depending on where you're licensed. A small number of states mandate coverage to practice. Many more require you to disclose to clients if you go without it — sometimes on your engagement letter, sometimes in a filing with the bar. Some states say nothing at all. The rules also change. Do not take a colleague's word, a forum post, or this article as the final word on your obligation. Check directly with your state bar, because the consequence of getting it wrong is a discipline problem stacked on top of whatever else is going wrong.
Setting up the rest of the practice around this decision is part of the larger job of how to start your own law firm — insurance is one of the early load-bearing pieces, not an afterthought.
Here's the practical reality for the new solo: even where it's optional, "going bare" — practicing with no coverage — is a bet that nothing will go wrong in your first years, which are exactly the years you're most likely to make a mistake. You're learning the business, the software, the deadlines, and the substantive law of whatever you took on because you needed the fee. One missed limitations date, one conflict you didn't catch, one matter you should have declined, and a bare solo can lose personal assets. The policy is what stands between a single bad matter and your savings.
Claims-made vs. occurrence: the distinction that trips everyone up
This is the part new attorneys most often misunderstand, and the misunderstanding is expensive. There are two basic structures for these policies, and they decide which claims are covered based on when things happen.
An occurrence policy covers any incident that happens while the policy is active, no matter when the claim is actually filed. If you have an occurrence policy in force the year you make a mistake, that mistake is covered even if the client doesn't sue until five years later, after you've changed carriers or closed the firm. Occurrence policies are simpler and more permanent — and in legal malpractice they are uncommon and often unavailable. Don't assume you can buy one.
A claims-made policy is what most lawyers actually have. It covers a claim only if the claim is made against you and reported during the period the policy is active (plus any extended reporting you've bought). The triggering event isn't when you made the mistake — it's when the claim shows up. That has a critical consequence: the policy you hold today is the one that has to respond to a claim that arrives today, even if it's about work you did years ago.
That's why two features of a claims-made policy matter as much as the coverage limit:
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The retroactive date (prior-acts coverage). This is the date your coverage reaches back to. Work you did before the retroactive date isn't covered, period. A brand-new attorney with no prior practice has no past to cover, so this matters less at the very start — but the moment you've been practicing and you switch carriers or renew, protecting that retroactive date becomes one of the most important things you do.
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Continuity. Because a claims-made policy only responds while it's active, a gap in coverage is dangerous in a way it never would be with occurrence coverage. Let the policy lapse and the claims-made structure means work you already did can become uninsured.
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Tail coverage: what happens when you stop
Because claims-made coverage only works while a policy is active, you have a problem the day you stop paying for one — when you retire, close the firm, take an in-house job, join a firm that covers you differently, or pass away. Claims about your old work can still arrive for years, and a closed policy won't answer them.
Tail coverage — formally, an extended reporting period (ERP) — solves this. It lets you report claims that come in after the policy ends, for work done during the policy period, for a defined stretch of time afterward (some carriers offer a multi-year tail; some offer an unlimited one). You buy it once, when you're leaving.
A new solo doesn't need tail coverage on day one. But you need to understand it on day one for two reasons. First, it's a real future cost — a tail can be priced as a multiple of your annual premium, so it's not a rounding error, and you should know it's coming before you ever need it. Second, it changes how you think about switching carriers: sometimes a new carrier will pick up your prior acts (so you don't need a tail), and sometimes they won't (so you do). Knowing the difference keeps you from accidentally leaving a gap during a routine switch.
What moves your premium
You'll see real numbers only when you apply, because the inputs are specific to you and they vary widely by state, carrier, and the year. Anyone quoting you a flat figure for "a new solo" without asking questions is guessing. That said, here's what drives the price up or down, qualitatively, so the quote you get makes sense:
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Practice area. This is usually the biggest single factor. Some areas are treated as low-risk; others — the ones where a mistake can cost a client a great deal or where deadlines and large sums are common — are priced as higher-risk. A general practice that dabbles in several higher-risk areas can cost more than a focused practice in one lower-risk area.
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Coverage limits. Higher limits cost more. The relationship isn't strictly proportional, but more protection means more premium.
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Retroactive date / prior acts. More years of prior-acts coverage means more exposure for the carrier and generally more premium. As a true new attorney you have no prior acts, which is one of the few pricing advantages of being brand new.
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Claims history. A clean record helps. Prior claims, or a history of disciplinary issues, push the price up — or make some carriers decline you.
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Location and other factors. Your jurisdiction matters, because both the legal environment and the carrier's experience there feed into the price. Hours worked, staff, use of contract lawyers, and how much of your work is in higher-risk areas can all factor in.
Because a new attorney has no prior acts and no claims history, your first policy is often one of the more affordable ones you'll ever buy — and the premium tends to step up over the first several years as your retroactive date reaches further back. Plan for that increase instead of being surprised by it.
Whatever the number turns out to be, treat it as a fixed cost of operating, not a discretionary expense. It's overhead you have to price into your rates, the same way you account for rent and software when you're setting your fees. A premium you can't cover from your fees is a sign the fees are too low, not a sign to skip the coverage.
How to think about limits and deductibles
Two numbers shape every policy: the limit (the most the policy will pay) and the deductible or self-insured retention (what comes out of your pocket before coverage kicks in).
On limits, resist the instinct to buy the smallest legal minimum just because it's cheapest. Think about the size of the matters you actually handle. If your typical client's exposure — the amount they could plausibly lose if you got it wrong — is larger than your limit, you're underinsured in a way that defeats the purpose. Ask too whether your limit is "defense inside" or "outside" the limit, because if defense costs erode your coverage, a long fight can eat the protection before you ever reach a settlement. A broker can walk you through what limit is sensible for your practice area and case sizes.
On deductibles, a higher deductible lowers your premium but raises what you pay on every claim, including ones where you did nothing wrong but still have to respond. As a new solo with thin cash reserves, be honest about whether you could actually write that check on short notice. The cheapest premium isn't a bargain if a single claim's deductible would put you in a hole.
The application and underwriting process
Buying this isn't like buying car insurance off a website. You'll work with a broker, fill out an application that goes deeper than you expect, and wait for a carrier to evaluate you.
Use a broker who specializes in lawyers' professional liability. A specialist knows which carriers want a practice like yours, can place you with more than one, and can compare offers in terms that matter — retroactive date, defense-inside-or-outside, tail terms — not just the headline premium. Some bar associations sponsor or endorse programs; those are worth a look alongside an independent broker's options.
The application will ask about your practice areas and the rough split among them, your expected revenue or hours, your history (claims, discipline, prior coverage), your systems for managing deadlines and conflicts, and the kinds of matters you take. Answer carefully and completely. A material misstatement on the application can give a carrier grounds to deny a claim later — which is the worst possible time to find out your coverage isn't what you thought.
Expect underwriting questions and don't take them personally; the carrier is pricing risk. If you're asked about your file and deadline systems, that's not idle curiosity — your internal practices are part of what they're insuring. Building those systems well is its own job; if a missed deadline is the thing you're most afraid of, that's about how to prevent malpractice claims, which is a separate topic from buying the policy that backs you up when prevention fails.
The mistakes that catch new solos
A handful of errors come up again and again. None of them are exotic. All of them are avoidable.
Going bare to save money. The premium feels like a lot when you have no clients and no revenue. But the early years are your highest-risk years, and a bare solo is betting personal assets on a perfect record while still learning the job. If money is the obstacle, ask the broker about a lower limit or a payment plan before you ask about no coverage at all.
Under-insuring. Buying the minimum limit because it's the cheapest line on the quote, without checking it against the size of the matters you handle. A limit that can't cover a realistic claim is a false economy.
Letting the policy lapse — and losing prior-acts coverage. This is the one that's unique to claims-made policies and the one new attorneys least expect. Miss a payment, let coverage drop for even a short window, and you can lose protection for all the work you've already done — not just future work. Treat the renewal date like a court deadline. Put it on a calendar with a reminder weeks ahead.
Misunderstanding claims-made coverage. Assuming that because you "had insurance" when you did the work, you're covered when the claim arrives. With claims-made, it's the policy in force when the claim is made that responds — which is exactly why continuity, the retroactive date, and tail coverage all matter. Read the structure before you sign, and ask the broker to explain anything you can't restate in your own words.
Switching carriers carelessly. Moving to a cheaper carrier without confirming they'll honor your retroactive date can silently strip coverage from everything you've already done. Always confirm prior-acts treatment in writing before you switch.
The short version
Buy professional liability coverage before you take your first client. Confirm your actual obligation with your state bar rather than assuming. Understand that you're almost certainly buying a claims-made policy, which means the retroactive date, continuity of coverage, and an eventual tail are not fine print — they're the whole point. Work with a broker who specializes in lawyers, answer the application honestly and in full, and pick a limit that matches the matters you really handle, not the cheapest line on the quote.
You can't get a meaningful number from an article, and you shouldn't trust one that tries to give you one. Premiums and rules vary by state, practice area, and carrier, and they change. Get a real quote from a licensed broker, get your state's requirement from the bar, and treat both as the cost of being allowed to do the work — because that's what they are.