What kind of payment terms would you prefer: immediately, or longer term?
While it’s always nice to get paid up-front or at the completion of a project, it’s a good idea to have a sense about how you’ll get paid. You can negotiate a down payment, installments, balance due at completion, and a processing period in case invoices need to run through their accounting department. The length of time of the payment terms are often defined by the amount of days in between invoicing and payment. You will often see this stated as NET 30 for 30 days, NET 15 for 15 days, etc.
How many hours a week do you expect to work for this gig or professional service?
How many hours you work as an independent contractor depends on many factors such as your availability, customer needs, or how long the project will take. It’s a good idea to have a sense of how you’ll invest your time, and how much of it you’ll give to work and how much to your personal life.