Conversely, the attorney who charges a flat fee may not later demand more money if the case requires more time and effort than originally anticipated. An hourly rate is a predetermined amount charged for each hour of the attorney's work. The attorney and client may agree that hourly fees are to be paid periodically, or in one lump sum at the end of the case. The time that an attorney charges for legal work is called billable time, or billable hours. Hourly rates vary according to the attorney's expertise and experience.
Some persons suspect that hourly rates discourage quick work and expedited resolutions.
Before agreeing to an hourly rate, prospective clients should ask for a written estimate of the number of billable hours that the attorney anticipates will be necessary to complete the matter. A contingent fee is a percentage of the amount recovered by the client. A contingent fee is not paid by the client until the client wins money damages from a defendant. Attorneys offer such a fee if the client stands a good chance of winning a sizable cash settlement or judgment. Contingent fees cannot be used in divorce cases, child custody cases, and criminal cases.