How you get paid shapes how you practice. Fee structure selection is one of the most consequential business decisions an architect makes, and the ARE expects you to know when each structure works, when it backfires, and why certain methods are outright prohibited on federally funded projects.

The four primary fee structures are stipulated sum (also called lump sum or fixed price), percentage of construction cost, hourly billing (specific rates of compensation), and cost-plus with a fixed fee. Each one distributes financial risk differently between architect and client. Some reward efficiency. Others protect against scope uncertainty. And a few are restricted or banned by federal regulation because they remove any incentive for the design firm to control costs.

Risk allocation is the thread connecting all four methods. Under a stipulated sum, the architect absorbs cost overruns but keeps savings from efficient work. Hourly billing shifts the cost risk to the client, who pays for every hour worked up to a cap. Cost-plus with a fixed fee protects the architect's profit while passing actual project costs to the owner. Percentage-of-construction-cost ties the architect's compensation directly to what the contractor spends, creating a conflict that federal regulators have deemed unacceptable on publicly funded highway projects.

For the PcM exam, you need to match fee structures to project scenarios, calculate basic fee comparisons, and understand the regulatory framework behind qualifications-based selection and fair compensation. This topic sits at the intersection of contract negotiation, risk management, and business strategy.