I think it's not possible for less than $300. In Ontario, you have two different ways to incorporate your business. You can either manually make and file Articles of Incorporation or you can use a licensed third-party portal to incorporate the business online or electronically. But I should say, you better incorporate your business with the help of a service provider to avoid mistakes and to make the process is fairly simple with
USA company formation. Also, there are categories such as Federal incorporation and Provincial incorporation, so you may get confused about the merits and demerits of these two if you incorporate your business manually.