The percentage a personal injury lawyer takes from a settlement is almost always one-third, and that number is so widely understood as the standard that most people assume it is fixed by law or regulation. It is not. One-third is a market convention, not a legal requirement, and the actual percentage in your case depends on what your retainer agreement says, when your case resolves, and whether any of the variables that drive fee percentages up or down apply to your situation. Understanding how contingency fees actually work, including where they are negotiable and where they are not, is information that is worth having before you sign anything.

A contingency fee means your attorney receives a percentage of whatever you recover. If you recover nothing, they receive nothing. The attorney is, in effect, betting their time and their expenses on the outcome of your case, which is why the percentage they charge is higher than an hourly rate would be for the same amount of work on a matter with guaranteed payment. The contingency structure exists because most people who have been injured in car accidents cannot afford to pay an attorney by the hour while the case is pending, and it aligns the attorney’s financial interest with yours: the more they recover for you, the more they earn.

The standard one-third fee applies most commonly to cases that settle before a lawsuit is filed. Once a lawsuit is filed, most retainer agreements increase the contingency percentage, typically to forty percent. The logic is that litigation is significantly more expensive and time-consuming than pre-suit negotiation, and the attorney is taking on substantially more risk of non-recovery by investing in a case through discovery, depositions, expert witnesses, and trial preparation. Some agreements use a graduated structure with three tiers: a lower percentage for pre-suit settlements, a middle percentage once suit is filed, and a higher percentage if the case proceeds through trial. Reading your retainer agreement carefully to understand which tier applies at which stage of your case matters, because many clients are surprised to find that a case they assumed would settle quickly has moved into a higher fee bracket by the time it actually resolves.

Missouri does not cap personal injury contingency fees by statute for adult plaintiffs, which means the percentage is entirely a matter of contract between you and your attorney. Some states do cap fees, particularly in medical malpractice cases. Missouri’s medical malpractice fee limits exist under specific statutory provisions, but for standard car accident cases the fee is whatever you agreed to in writing when you retained the attorney. That agreement is worth locating and reading if you have not looked at it since you signed it, because the details of how the fee is calculated, specifically whether it is calculated on the gross settlement or on the net after expenses, can meaningfully change what you actually keep.

The gross versus net calculation distinction deserves more attention than most clients give it. If your agreement says the attorney receives one-third of the gross recovery, the fee is calculated on the total settlement amount before case expenses are deducted. On a ninety-thousand-dollar settlement with fifteen thousand dollars in case expenses, the attorney takes thirty thousand dollars and you receive forty-five thousand dollars after expenses are also deducted from your share. If your agreement says the attorney receives one-third of the net recovery after expenses, the fee is calculated on seventy-five thousand dollars, which is twelve thousand five hundred dollars, and you receive sixty-two thousand five hundred dollars after expenses are paid separately. The difference between those two structures on a single case is seventeen thousand five hundred dollars, and most clients have no idea which calculation governs their own agreement until the disbursement sheet arrives.

Here is the insight that most people signing a personal injury retainer agreement have never encountered: the fee percentage and the calculation method are both negotiable at the outset of the representation, and experienced attorneys vary more on these terms than the one-third standard suggests. A case with clear liability and serious injuries, the kind that almost certainly settles without significant litigation, is a different risk profile for an attorney than a case with disputed liability, modest injuries, and an aggressive defense. An attorney who is genuinely interested in your case and confident in the outcome may be willing to take a lower percentage on a strong case, or to calculate the fee on net rather than gross, because the risk they are underwriting is lower. An attorney who is less certain about the case has more reason to protect their upside through the standard terms. The negotiation, to the extent it happens at all, occurs before the retainer is signed and almost never afterward.

The fee percentage is also sometimes negotiable when the settlement is very large. On a multi-million-dollar resolution, a standard one-third fee produces a dollar amount that some clients find difficult to reconcile with the actual work performed, regardless of the risk the attorney assumed at the outset. Many attorneys who handle high-value cases use tiered fee structures that reduce the percentage on settlement amounts above a certain threshold. Whether your case warrants that conversation depends on the numbers involved, and it is a conversation worth having with the attorney directly before the case resolves, not after the disbursement sheet has been prepared.

Case expenses are separate from the fee and are sometimes conflated with it in a way that obscures how much each one actually costs you. The contingency fee compensates the attorney for their time and professional judgment. Case expenses compensate the attorney for money they spent out of pocket to build your case: medical records, police reports, expert witness fees, deposition transcripts, court filing fees, accident reconstruction costs, and whatever else the case required. Both the fee and the expenses come out of your settlement, but they come out differently and are governed by different provisions of your retainer agreement. Asking your attorney at the outset for an estimate of anticipated case expenses, and asking again periodically as the case progresses, gives you a more accurate picture of your likely net recovery than knowing the fee percentage alone.

Some attorneys advance case expenses and seek reimbursement from the settlement, while others charge expenses as they are incurred and bill them separately. The first structure, which is the more common one in personal injury practice, means you pay nothing out of pocket during the case but owe the expenses back from your recovery. The second structure is less common and requires you to pay expenses as they accrue regardless of outcome, which most injury victims cannot afford. If your agreement advances expenses and seeks reimbursement, confirm in writing whether that reimbursement obligation exists even if the case does not settle, meaning whether you owe the attorney’s advanced costs even if you receive nothing. Most agreements make expenses contingent on recovery as well, but not all of them do, and the distinction matters if your case resolves in a way you did not expect.

The question of whether a one-third fee is worth it is one that most people think about in isolation, comparing the fee to the work performed. The more useful comparison is between what you would recover on your own and what you recover with representation, net of the fee. Studies of personal injury outcomes consistently show that represented claimants recover significantly more than unrepresented ones, even after the contingency fee is deducted. Insurance adjusters negotiate differently when they know a claimant has counsel, medical liens are more aggressively negotiated by attorneys who do this work regularly, and cases with legal representation are far more likely to reach values that reflect what a jury might actually award rather than what the insurer was hoping to pay. A one-third fee on a substantially higher recovery frequently leaves the client with more money than a smaller recovery obtained without representation. Whether that dynamic applies to your specific case is something an attorney consultation can help you evaluate, and most personal injury attorneys offer that consultation at no charge.

What you are paying for when you pay a contingency fee is not just time. It is risk capital, professional judgment, negotiating leverage, lien management, and the credible threat of litigation that changes how an insurer prices your claim. An attorney who has tried cases in your jurisdiction and who opposing counsel knows will go to trial is worth more to your recovery than the fee percentage alone would suggest. The one-third standard is a starting point for the conversation about what representation in your specific case costs and what it is worth, and treating it as a fixed and non-negotiable given before that conversation happens leaves value on the table that belongs to you.

This article is intended for general informational purposes only and does not constitute legal advice. Contingency fee structures, permissible fee percentages, and the terms of attorney-client fee agreements vary by state, by case type, and by the terms of the specific retainer agreement you sign. Before retaining a personal injury attorney, read your fee agreement carefully and ask your attorney to explain any provisions you do not understand, including how the fee is calculated and what expenses you may be responsible for regardless of outcome.