In most cases, the answer is yes. A finished basement project must incorporate an Egress window if any portion of the space will be used as a bedroom, or if you are creating another habitable space (a family room, for example) that does not already have an Egress window or a door.
How many exits are required in a basement?
In fact, basements must have no less than two fire exits, also in addition to any horizontal exit.
How many basement egress windows do I need?
A basement that is below-grade level on all sides will need a minimum of one egress window, as well as one in each basement bedroom (including guest rooms). Walk-out basements already have proper egress (usually a patio door), but bedrooms in walkout basements also need at least one egress window.