Quick answer. For the covered ordinary negligence claims, Rhode Island reduces damages by the injured person’s share of negligence without a percentage cutoff. Massachusetts also bars recovery when that share exceeds the combined negligence of the people against whom recovery is sought. R.I. Gen. Laws § 9-20-4 (2026) · Mass. Gen. Laws ch. 231, § 85
An insurance adjuster says you share responsibility for a collision. That statement can affect the claim, but it is not enough to tell you whether recovery is possible or how much fault should be assigned. Rhode Island and Massachusetts use different comparative-negligence rules.
The comparison below concerns ordinary negligence claims and assumes the law of the named state applies. A collision involving people, vehicles, or events in more than one state may require a separate review of which state's law governs.
Massachusetts has a threshold as well as a reduction
Massachusetts permits recovery when the injured person's negligence is not greater than the combined negligence of the people against whom recovery is sought. Allowed damages are reduced by the injured person's percentage. In a two-party example, 50 percent fault permits a reduced recovery; 51 percent bars recovery under this rule. Mass. Gen. Laws ch. 231, § 85
With $100,000 in proven damages and a 50–50 allocation, the Massachusetts calculation leaves $50,000. With the injured driver assigned 60 percent and the other driver 40 percent, this Massachusetts rule bars recovery. These hypothetical calculations illustrate the legal difference; they do not predict an insurer's offer or a court's allocation.
When more than one defendant is involved, Massachusetts compares the plaintiff's negligence with the total negligence of the persons against whom recovery is sought. Looking only at one defendant's percentage can therefore give the wrong impression. Mass. Gen. Laws ch. 231, § 85
| Claimant negligence | Rhode Island | Massachusetts |
|---|---|---|
| 50% with one defendant 50% | Proportional reduction | Proportional reduction; equal fault does not trigger the bar |
| 60% with one defendant 40% | Proportional reduction | Recovery barred under the compared rule |
The percentage needs evidence
Start with the disputed event. Was the disagreement about a turn, a lane change, a traffic signal, speed, visibility, or the opportunity to avoid the collision? Identify the factual question before accepting a percentage proposed in a letter or phone call.
Useful records can include scene and vehicle photographs, available video, witness contact information, the crash report, and correspondence explaining an insurer's position. Keep the original files where possible. A short timeline should distinguish what you personally saw from what someone told you afterward.
Preserve information that appears unfavorable as well as information that supports your account. A complete record helps counsel assess the dispute and address weaknesses directly. Tell counsel promptly if video or another record may be overwritten.
A three-vehicle example: compare the right percentages
Hypothetical only: an injured driver is assigned 40 percent negligence, one defendant 35 percent, and another defendant 25 percent. For a claim governed by Massachusetts § 85, the comparison is between the claimant’s 40 percent and the combined 60 percent of the persons against whom recovery is sought. Comparing 40 only with either defendant’s individual share would miss the statutory comparison. Mass. Gen. Laws ch. 231, § 85.
If total proved damages are $100,000, applying a 40 percent reduction leaves $60,000 before other issues. That figure does not say how payment is allocated between defendants, whose insurance responds, whether all parties are properly before the court or what sum is collectible. Those are separate questions requiring review of the parties, claims and applicable law.
As a preparation exercise, draw a separate box for each driver, vehicle owner and insurer. Record what each person is alleged to have done and where that allegation comes from. Avoid treating the number of vehicles as the number of legally responsible parties. Someone’s presence at the scene does not itself establish negligence, and a claim against a particular person needs a factual and legal basis.
Who proposed the percentage, and what does it represent?
A percentage may appear in an adjuster’s preliminary assessment, a negotiating letter, a proposed settlement or a court determination. Identify the source and purpose before treating the number as fixed. A negotiating position can assume facts that have not yet been established. A conversation about an offer may also combine fault, disputed damages and coverage constraints without itemizing them.
Massachusetts § 85 places the burden of alleging and proving negligence that would reduce or bar recovery on the person asserting that defense. That does not eliminate the injured person’s need to establish the claim itself. Read the statutory burden provision. For practical review, identify which facts support the affirmative claim and which facts are offered to support comparative negligence.
Ask for the available written explanation, then organize the specific dispute. Does the insurer rely on a lane change, speed, a signal or a conflicting witness statement? Was that statement based on firsthand observation? A response grounded in the underlying question is more useful than a demand for a particular percentage without an explanation. Preserve the other account in full even when you disagree with it.
A multistate crash needs a separate governing-law discussion
A Rhode Island resident may be injured in Massachusetts while driving a vehicle insured elsewhere. The accident location, the parties’ connections and the policy details belong in the initial summary. This guide compares two statutes on the assumption that the named state’s law applies; it does not supply a choice-of-law determination for that combination of facts.
Prepare a location-and-connection list rather than choosing the more favorable formula yourself. Include where the collision occurred, where each party lives or operates, where relevant vehicles are registered, the available policies and any lawsuit papers already received. Mark information you do not know. If an insurer invokes a particular state’s rule, preserve the letter and the reasoning it provides.
The same discipline helps when a crash involves an employer, a commercial vehicle or a trip that began in another state. Describe the actual trip and employment relationship without assuming that any one fact controls. Counsel can identify the governing legal issues before using a percentage calculation. A comparison chart is most useful after those assumptions have been made explicit, not as a substitute for that analysis.
An injury dispute can remain even after fault is agreed
Suppose both sides accept a 20 percent allocation to the injured person but disagree about whether all claimed treatment relates to the collision. That is a damages-and-causation dispute in addition to comparative fault. Reducing a disputed total by an agreed percentage does not resolve which expenses or losses belong in the total.
Create separate entries for medical charges, payments, work loss and vehicle expenses. A bill is not the same as a payment, and an estimate is not the same as a completed repair. Keep the source document beside each entry and identify whether the amount is confirmed, disputed or still being gathered. For missed work, connect the dates with available payroll, scheduling or business records rather than projecting a round figure without support.
Describe changes in daily activities in concrete terms: which task, what changed, when and how often. Do not diagnose yourself or ask a provider to adopt wording prepared for a claim. An accurate account can acknowledge improvement, prior symptoms and uncertainty. That gives counsel a usable picture of the dispute and helps prevent an attractive fault calculation from concealing weak or incomplete support for the claimed loss.
Use a scenario sheet to ask better questions about an offer
A useful scenario sheet names its assumptions in plain language. Start with the proposed total damages, the proposed claimant percentage and the state rule assumed to apply. Identify where each number came from. Then list the issues that the calculation leaves unanswered: coverage, additional parties, fees, expenses, liens, reimbursement and the release’s scope.
Hypothetical discussion exercise: one proposal accepts more damages but assigns more claimant fault; another accepts fewer damages but assigns less fault. Comparing only the percentage gives an incomplete picture. Ask counsel to compare the resulting gross figures, the evidence supporting each position and the remaining practical deductions or uncertainties. Neither proposal becomes fair merely because one input looks favorable.
Bring the actual written offers rather than a memory of the last number discussed. Identify any response date or court event on a separate calendar. Continuing negotiations is not a reason to assume every applicable legal deadline has been extended. For a focused review of disputed Rhode Island facts, see the Rhode Island fault evidence guide; for organizing the initial file, use the consultation records checklist.
Fault is only part of the recovery calculation
These examples assume total damages have already been proved. They do not determine the value of treatment, time away from work, or other claimed losses. They also do not show the amount a client would receive after any applicable fees, expenses, liens, insurance limits, or other adjustments.
For an initial review, bring the insurer's written position, the available collision evidence, treatment records, and any papers showing a deadline. You do not need to settle the fault dispute yourself before contacting a lawyer.
Read our personal injury guide and auto accident guide, or request a consultation about the disputed allocation.
This article provides general information. The applicable law and the documents in an individual matter control. Contacting the firm does not by itself create an attorney-client relationship.