A business plan is a written document that outlines your business, where it is going, how it will get there. Such a document is essential if you try to get a loan or grant from a funding institution.
Each funding institution is likely to recommend its own format for the business startup plan, but it would typically contain the following sections:
The Business Idea
Description of Products and Services
Marketing and Sales Plan
The following link from ACOA provides detailed instructions on how to create such a business plan.
ACOA – Planning for success: your guide to preparing a business and marketing plan
Wikihow.com – How to Write a Business Plan for a Small Business