The average contingency rate falls between 20-40%, with most lawyers charging around 33% to 35% of the total amount recovered in a case. The exact percentage can vary depending on the complexity of the case, the lawyer's experience, and the stage at which the case is resolved.
Contingent fees are not allowed for audit engagements, ing to IFAC's Code of Ethics, and also under ES 4, because of the self-interest threat to objectivity created.