That depends on what your needs are. If you want to keep your expenses as low as possible, then you might find yourself bewildered by the state fee and the service’s package fees put together. But if you don’t want to endure the hassle of dealing with paperwork, or you simply want a teammate to help you through the process, a service may be a big help to you. Another important note is that neither ZenBusiness nor Northwest file professional corporations. Yes, they are ideal if you’re looking to form a regular corporation or an LLC, but not professional corporations.