Methods and systems are provided for estimating liability in an accident. In an embodiment, a liability estimate may include an upper bound of liability and a lower bound of liability. In one embodiment, liability estimation in a vehicle accident may be based on a plurality of characteristics that describe the accident. These characteristics may include: the configuration of the roadway, the type of accident, right of way, and impact points of each vehicle. The characteristics from an actual accident may be compared to those in a past or theoretical accident. Liability may be estimated from a preassigned liability associated with a nearest matching past or theoretical accident. The liability estimate may include a base liability and one or more adjustments due to various factors.