Pennsylvania uses modified comparative fault with 51% bar. Authority: 42 Pa. C.S. § 7102.
The Pennsylvania pattern jury instructions ask jurors to determine: (1) was the defendant negligent? (2) was the plaintiff negligent? (3) was each party\'s negligence a substantial factor in causing the injury? (4) what percentage of fault, totaling 100%, do you assign to each party?
The court applies the modified comparative fault (51% bar) formula to those percentages after the verdict form is returned.
Pennsylvania follows the modern American approach to allocating fault in personal-injury cases: rather than treating any plaintiff fault as a complete bar (the old contributory-negligence rule), the jury assigns percentages and the recovery is reduced , or, in some states, eliminated past a threshold.
Pennsylvania uses modified comparative fault with a 51% bar: a plaintiff is barred only if their fault is GREATER than 50% (i.e., 51% or more). At exactly 50%, recovery is still allowed , reduced by half, but not eliminated.
Pre-trial settlement valuation and trial strategy in Pennsylvania both turn on these numbers. Below: five scenarios at common verdict sizes and fault percentages, with the recovery a Pennsylvania plaintiff would actually receive under the state\'s modified comparative fault (51% bar) rule.
| Verdict | Plaintiff fault | Net recovery | Reduction |
|---|---|---|---|
| $100,000 | 10% | $90,000 | $10,000 |
| $250,000 | 25% | $187,500 | $62,500 |
| $500,000 | 49% | $255,000 | $245,000 |
| $500,000 | 50% | $250,000 | $250,000 |
| $1,000,000 | 60% | $0 | $1,000,000 |
Practical illustration: an injured driver wins a $200,000 verdict in Pennsylvania and the jury assigns 10% fault to them. Applying Pennsylvania's modified comparative fault (51% bar) rule yields a net recovery of $90,000.
Scenario: a slip-and-fall plaintiff is awarded $1,000,000 by a Pennsylvania jury, with 25% of fault attributed to them for not watching where they walked. Under Pennsylvania law (modified comparative fault (51% bar)), the final award is $187,500.
Scenario: a slip-and-fall plaintiff is awarded $1,000,000 by a Pennsylvania jury, with 49% of fault attributed to them for not watching where they walked. Under Pennsylvania law (modified comparative fault (51% bar)), the final award is $255,000.
Practical illustration: an injured driver wins a $200,000 verdict in Pennsylvania and the jury assigns 50% fault to them. Applying Pennsylvania's modified comparative fault (51% bar) rule yields a net recovery of $250,000.
Scenario: a slip-and-fall plaintiff is awarded $1,000,000 by a Pennsylvania jury, with 60% of fault attributed to them for not watching where they walked. Under Pennsylvania law (modified comparative fault (51% bar)), the final award is $0.
The settlement value of a Pennsylvania case depends not just on damages but on fault projection. Adjusters discount offers heavily when liability is contested and the rule allows a bar at some threshold. A plaintiff with a "75/25" liability case in a 50%-bar state settles differently than the same case in a pure-comparative state.
In contested Pennsylvania cases, the jury is the final arbiter of fault percentages. Pre-trial, lawyers run focus groups and mock juries to predict how an average Pennsylvania juror will allocate responsibility on the specific facts , those predictions then drive settlement leverage.
Pennsylvania comparative-negligence rules only matter if you file on time. The state\'s personal-injury statute of limitations is 2 years from the date of injury (42 Pa. C.S. § 5524). Even an airtight liability case is dismissed with prejudice if the complaint is filed late.
Pennsylvania applies modified comparative fault (51% bar). Pennsylvania uses modified comparative fault with 51% bar.
Pennsylvania bars recovery when the plaintiff is 51% or more at fault.
Pennsylvania jurors are presented with a special verdict form asking them to assign fault percentages totaling 100% to each party (and any non-party at fault under joint-tortfeasor rules). The trial court then applies the comparative-fault formula to compute the final recovery.
Yes. Pennsylvania juries can apportion fault among multiple defendants (and sometimes non-party tortfeasors). The treatment of joint and several liability , whether each defendant is liable only for their share or for the entire judgment if others are insolvent , varies by state statute.
Pennsylvania courts vary on the "seat-belt defense." Some states allow evidence of non-use as a fault factor; others (by statute or judicial rule) exclude it. Plaintiffs\' counsel should consult current Pennsylvania appellate decisions before deciding how to handle the issue at trial.
Generally yes , Pennsylvania\'s comparative-fault rule applies across negligence claims, including medical malpractice. Some states adjust the framework for medmal cases (e.g., reducing the plaintiff-fault relevance because patients rarely contribute to their own injuries in the traditional sense), but the basic rule applies unless the statute carves out an exception.
In modified comparative fault (51% bar) Pennsylvania, the bar threshold becomes the focal point of settlement: defendants negotiate harder near the threshold, plaintiffs accept reduced offers to avoid the bar.
Last verified against primary sources on 2026-05-16.