- SoW can be milestones payment based (not daily or hourly)
The Statement of Work is between two businesses (not individuals) and it is set up with either hourly, daily or milestone payment terms.
Payments made should be tied to deliverables that are in the hands of the freelancer to complete. As a professional freelancer you should ensure you have a reasonable amount of insight on the feasibility of each deliverable. What are the dependancies? Are there any significant risks of failure?