Larger projects, such as books or political campaigns, will often be compensated with a lump sum. Sometimes this can be divided, with a down payment up front and the rest upon completion. Extensive or time-consuming ghostwriting projects can pay anywhere from $2,000 to $70,000, depending on the amount of research, the length of the book, and the contract’s time constraints. Occasionally, ghostwriters are credited as a co-author on a work. This, too, can affect earnings.