A one-page business plan is exactly what it sounds like: a quick summary of your business delivered on a single page. No, this does not mean a very small font size and cramming tons of information onto a single page—it means that the business is described in very concise language that is direct & to-the-point.
A one-page business plan can serve two purposes. First, it can be a great tool to introduce the business to outsiders, such as potential investors. Since investors have very little time to read detailed business plans. Second, it is great for early-stage companies that just want to sketch out their idea in broad strokes. Think of the one-page business plan as an expanded version of jotting your idea down on a napkin. Keeping the business idea on one page makes it easy to see the entire concept at a glance and quickly refine concepts as new ideas come up.