As part of your plan you will need to provide a set of financial projections which translate what you've said about your business into numbers.

You will need to look carefully at:

how much capital you need if you are seeking external funding
the security you can offer lenders
how you plan to repay any borrowings
sources of revenue and income
You may also want to include your personal finances as part of the plan at this stage.

Financial planning
Your forecasts should run for the next three (or even five) years and their level of sophistication should reflect the sophistication of your business. However, the first 12 months' forecasts should have the most detail associated with them. 

Include the assumptions behind your projection with your figures, both in terms of costs and revenues so investors can clearly see the thinking behind the numbers.

What your forecasts should include
Cashflow statements - your cash balance and monthly cashflow patterns for at least the first 12 to 18 months. The aim is to show that your business will have enough working capital to survive so make sure you have considered the key factors such as the timing of sales and salaries. See our guide on cashflow management: the basics.

Profit and loss forecast - a statement of the trading position of the business: the level of profit you expect to make, given your projected sales and the costs of providing goods and services and your overheads.

Sales forecast - the amount of money you expect to raise from sales