Subcontractors are usually paid based on the terms outlined in their subcontractor agreement. The payment terms can vary depending on the project and the agreement between the subcontractor and the contractor. Some subcontractors are paid a flat fee or a fixed amount for their work, while others are paid hourly or on a milestone basis. The payment schedule may also vary, with some subcontractors receiving payment in installments as the work progresses, while others are paid upon project completion. In some cases, subcontractors may also be paid a percentage of the total project cost.