Don’t make your business plan longer than necessary, and think about the reason you’re writing the plan in the first place. You’re probably going to want to revise your plan regularly, and the shorter your plan is, the more manageable that process will be. Using a business plan template to help you keep each section organized can help you as you start writing.
Page count is not a good way to measure length. A 20-page business plan with dense text and no graphics is much longer than a 35-page plan broken up into readable bullet points, useful illustrations of locations or products, and business charts to illustrate important projections.
Your business plan shouldn’t take longer than 15 minutes to skim
Measure a plan by readability and summarization. A good business plan should leave a reader a good general idea of its main contents even after only a quick skimming, browsing the main points, in 15 minutes. Format, headings, white space, and illustrations make a big difference. Summaries are very important. Main points should show up in a business plan as quickly as they do in a business presentation.
Your plan’s length should mirror its audience
Unfortunately, many people still use page count as measurement. And in that context, some of the more practical, internal-use-only business plans can be only 5 or 10 pages long. Corporate business plans for large companies can run into hundreds of pages. The more standard start-up and expansion plans developed for showing outsiders normally run 20-40 pages of text – easy to read, well-spaced text, formatted in bullets, illustrated by business charts and short financial tables – plus financial details in appendices.
The right length of the plan depends on the nature and purpose of the plan. Will it include descriptions of the company and management team for outsiders to read? Does it need an executive summary good enough to stand alone? Does it include detailed research, plans, drawings, and blueprints? Is it worded to withstand legal scrutiny as part of an investment proposal? Does it have everything bank would look for in your business loan application; Form follows function.