Which compensation fee is used for partial services and additional services?

The time-based fee is appropriate for partial services and additional services because it allows for compensation that is directly reflective of the amount of time spent on a task, project, or service. This method is particularly useful when the scope of work can vary or when additional services may be requested that were not initially included in a contract or agreement. By charging based on time, the professional can account for the varying levels of service delivered, ensuring they are compensated for every hour worked. This billing approach provides clarity and transparency in compensation, as clients can see how their costs align with the actual time dedicated to their needs.

In contrast, other methods like the professional fee plus expenses generally involve a fixed fee with variable expenses, which might not accurately capture the nuances of partial or additional services. The unit cost method is typically used in contexts where services can be quantified in standard units, which may not apply flexibly to partial engagements. Value-based pricing centers around the perceived value of the service rather than the time or cost incurred, which may not adequately address situations where services are provided partially or vary significantly in scope. Thus, for partial and additional services, the time-based fee is the most appropriate method to ensure fair compensation.