How is progress billing different from contingency billing?
Progress billing is used when you don’t know the final billing amount but you still want to bill progressively toward that unknown amount. You can bill a fixed amount on a regular basis or only once; or you can bill a different amount each billing. Contingency billing is when a firm will perform services for the client but will be paid contingent upon a settlement. Refer to the Contingency Billing and Progress Billing sections of Chapter 3 of the Tabs3 manual for additional information regarding contingent and progress billing.