A contingency fee is a payment arrangement between a client and a lawyer where the lawyer's fees are only paid if the case is successful. Typically, the lawyer receives a percentage of the settlement or judgment awarded to the client. This arrangement allows individuals to pursue legal action without upfront costs, making legal services more accessible. In cases involving personal injury, medical malpractice, or other civil matters, contingency fees are common. If the client does not win the case, they usually do not owe any legal fees. This system incentivizes lawyers to work diligently on behalf of their clients, as their payment depends on the outcome.