Gross versus net recovery
Contingency fees are almost always calculated on the gross settlement, before case costs and medical liens are paid. Two identical settlement figures can produce very different amounts in hand depending on that ordering.
A contingency fee lifts some vehicle injury claims well past what an adjuster would have paid, and leaves others roughly where they started. Here is how to tell which one you have.
how injury claims from vehicle collisions are handled and paid for in the United States, from fault determination through settlement
Contingency fees are almost always calculated on the gross settlement, before case costs and medical liens are paid. Two identical settlement figures can produce very different amounts in hand depending on that ordering.
Most fee agreements set one percentage for a claim settled before a lawsuit and a higher one once a complaint is filed. Read which trigger applies and when it takes effect.
Shifting an assigned fault percentage from thirty to ten changes the payout more than any argument about pain and suffering. This is the single clearest place representation pays for itself.

A contingency fee is priced as a share of the gross recovery, commonly around a third before trial and higher if a lawsuit is filed, and it is deducted before case costs, medical liens and any outstanding balance the clinic still holds. That ordering matters more than the percentage. A careful reader works the arithmetic backward from the check, not forward from the headline number, because two claims that settle for the same amount can leave the injured person with very different sums depending on what came out and in what order.
Representation earns its share when the number is genuinely in dispute, and it is genuinely in dispute in a fairly narrow set of circumstances: contested liability, an injury with a permanent or surgical component, a claim pressing against policy limits, or a case with several possible payers. Comparative negligence is the clearest example. An adjuster who assigns you thirty percent of the blame reduces every dollar of your claim by thirty percent, and an argument that moves that figure to ten changes the outcome more than any negotiation over pain and suffering ever will. Somebody has to build that argument out of the police narrative, the scene photographs and the physical damage patterns.
The other reliable case is the one where the medical picture is still developing. Future treatment, a permanent restriction, a documented loss of earning capacity: these are the categories insurers value conservatively by default, and they are the categories that respond to expert reports, vocational evidence and a credible willingness to file suit before the statute of limitations runs. A careful reader checks whether their own claim actually contains one of those elements, or only feels like it should.
The opposite case is the clean one. Rear-ended at a stop, liability admitted in the first recorded call, six weeks of physical therapy, no imaging beyond an initial X-ray, and a total medical bill in the low thousands. Insurers value these claims off a fairly predictable relationship between documented treatment and general damages, and the range an adjuster will reach without a lawyer overlaps heavily with the range one will reach with a lawyer. When a third comes off a settlement that grew by less than a third, the injured person nets less than they would have alone, and the file simply took longer to close.
Property damage only, diminished value, rental reimbursement and small medical payments coverage claims sit in the same territory. So does the claim where the real obstacle is not the insurer's valuation but your own documentation: gaps in treatment, no wage records from the employer, a missing bill from the imaging center that bills separately from the hospital. Nobody's fee percentage fixes a thin file. Assembling the paperwork does, and that is work you can do yourself in an afternoon.
Many firms that work on contingency will also sell an hour of consultation, and some plaintiff attorneys keep a flat-fee review product for exactly the claims they would decline to take on percentage. An hour, used deliberately, covers a surprising amount: whether the liability finding in the report is defensible, whether your state's comparative negligence rule is pure or modified and what threshold applies, whether your own underinsured motorist coverage stacks, what the health insurer's subrogation rights look like, and what a claim of your general shape tends to settle for locally. Ask for the demand letter structure rather than the demand letter itself.
Two further questions belong in that hour. First, what would need to change about the file for the attorney to take it on contingency, since the answer maps precisely onto what the claim is missing. Second, how the settlement will be characterized, because the Internal Revenue Service is responsible for how compensation for physical injury, lost wages and interest are each treated, and the split written into the release can matter after the check clears.
Before signing a fee agreement, read for four things: the percentage before and after suit is filed, whether costs are deducted before or after the fee is calculated, who negotiates the medical liens and whether that work is billed separately, and what happens if you discharge the firm mid-claim. Then estimate, honestly, the gap between the insurer's likely offer to you and the likely offer to counsel. If that gap exceeds the fee and the costs, the arithmetic supports hiring. If it does not, an hour of advice and a well-organized file usually does the same job.
Both routes end with a signed release and a closed claim. The difference is only where the money lands, and that is knowable in advance more often than people assume.