Appendices and Exhibits. The appendices and exhibits section contains any detailed information needed to support other sections of the plan.
Financial Plan. The financial plan section is the most important section of the business plan, especially if you need debt financing or wish to attract investors. The financial plan has to demonstrate that your business will grow and be profitable. To do this you will need to create projected income statements, cash flow statements, and balance sheets. For a new business, these are forecasts, and a good rule of thumb is to underestimate revenues and overestimate expenses.
Any funder worth his or her salt wants to see it right off the bat. Moreover though, a solid business plan is a living document that will continue to guide your efforts as your business grows. A lot of those mistakes (most of them, in fact) are the result of poor planning. Bad location, a marginal niche, having no specific user in mind, raising too much or too little money--all of these issues can be prevented or at least mitigated with good planning.
A standard business plan consists of a single document divided into several sections, including a description of the organization, the market research, competitive analysis, sales strategies, capital and labor requirements, and financial data.