How to Write the Financial Section of a Business Plan

An outline of your company's growth strategy is essential to a business plan, but it just isn't complete without the numbers to back it up. Here's some advice on how to include things like a sales forecast, expense budget, and cash-flow statement.

A business plan is all conceptual until you start filling in the numbers and terms. The sections about your marketing plan and strategy are interesting to read, but they don't mean a thing if you can't justify your business with good figures on the bottom line. You do this in a distinct section of your business plan for financial forecasts and statements. The financial section of a business plan is one of the most essential components of the plan, as you will need it if you have any hope of winning over investors or obtaining a bank loan. Even if you don't need financing, you should compile a financial forecast in order to simply be successful in steering your business.

"This is what will tell you whether the business will be viable or whether you are wasting your time and/or money," says Linda Pinson, author of Automate Your Business Plan for Windows (Out of Your Mind 2008) and Anatomy of a Business Plan (Out of Your Mind 2008), who runs a publishing and software business Out of Your Mind and Into the Marketplace. "In many instances, it will tell you that you should not be going into this business."

The following will cover what the financial section of a business plan is, what it should include, and how you should use it to not only win financing but to better manage your business.

How to Write the Financial Section of a Business Plan: The Purpose of the Financial Section

Let's start by explaining what the financial section of a business plan is not. Realize that the financial section is not the same as accounting. Many people get confused about this because the financial projections that you include--profit and loss, balance sheet, and cash flow--look similar to accounting statements your business generates. But accounting looks back in time, starting today and taking a historical view. Business planning or forecasting is a forward-looking view, starting today and going into the future.

"You don't do financials in a business plan the same way you calculate the details in your accounting reports," says Tim Berry, president and founder of Palo Alto Software, who blogs at and is writing a book, The Plan-As-You-Go Business Plan. "It's not tax reporting. It's an elaborate educated guess."

What this means, says Berry, is that you summarize and aggregate more than you might with accounting, which deals more in detail. "You don't have to imagine all future asset purchases with hypothetical dates and hypothetical depreciation schedules to estimate future depreciation," he says. "You can just guess based on past results. And you don't spend a lot of time on minute details in a financial forecast that depends on an educated guess for sales."

The purpose of the financial section of a business plan is two-fold. You're going to need it if you are seeking investment from venture capitalists, angel investors, or even smart family members. They are going to want to see numbers that say your business will grow--and quickly--and that there is an exit strategy for them on the horizon, during which they can make a profit. Any bank or lender will also ask to see these numbers as well to make sure you can repay your loan.

But the most important reason to compile this financial forecast is for your own benefit, so you understand how you project your business will do. "This is an ongoing, living document. It should be a guide to running your business," Pinson says. "And at any particular time you feel you need funding or financing, then you are prepared to go with your documents."

If there is a rule of thumb when filling in the numbers in the financial section of your business plan, it's this: Be realistic. "There is a tremendous problem with the hockey-stick forecast" that projects growth as steady until it shoots up like the end of a hockey stick, Berry says. "They really aren't credible." Berry, who acts as an angel investor with the Willamette Angel Conference, says that while a startling growth trajectory is something that would-be investors would love to see, it's most often not a believable growth forecast. "Everyone wants to get involved in the next Google or Twitter, but every plan seems to have this hockey stick forecast," he says. "Sales are going along flat, but six months from now there is a huge turn and everything gets amazing, assuming they get the investors' money." 

The way you come up a credible financial section for your business plan is to demonstrate that it's realistic. One way, Berry says, is to break the figures into components, by sales channel or target market segment, and provide realistic estimates for sales and revenue. "It's not exactly data, because you're still guessing the future. But if you break the guess into component guesses and look at each one individually, it somehow feels better," Berry says. "Nobody wins by overly optimistic or overly pessimistic forecasts."

How to Write the Financial Section of a Business Plan: The Components of a Financial Section

A financial forecast isn't necessarily compiled in sequence. And you most likely won't present it in the final document in the same sequence you compile the figures and documents. Berry says that it's typical to start in one place and jump back and forth. For example, what you see in the cash-flow plan might mean going back to change estimates for sales and expenses.  Still, he says that it's easier to explain in sequence, as long as you understand that you don't start at step one and go to step six without looking back--a lot--in between.


  • Start with a sales forecast. Set up a spreadsheet projecting your sales over the course of three years. Set up different sections for different lines of sales and columns for every month for the first year and either on a monthly or quarterly basis for the second and third years. "Ideally you want to project in spreadsheet blocks that include one block for unit sales, one block for pricing, a third block that multiplies units times price to calculate sales, a fourth block that has unit costs, and a fifth that multiplies units times unit cost to calculate cost of sales (also called COGS or direct costs)," Berry says. "Why do you want cost of sales in a sales forecast? Because you want to calculate gross margin. Gross margin is sales less cost of sales, and it's a useful number for comparing with different standard industry ratios." If it's a new product or a new line of business, you have to make an educated guess. The best way to do that, Berry says, is to look at past results.
  • Create an expenses budget. You're going to need to understand how much it's going to cost you to actually make the sales you have forecast. Berry likes to differentiate between fixed costs (i.e., rent and payroll) and variable costs (i.e., most advertising and promotional expenses), because it's a good thing for a business to know. "Lower fixed costs mean less risk, which might be theoretical in business schools but are very concrete when you have rent and payroll checks to sign," Berry says. "Most of your variable costs are in those direct costs that belong in your sales forecast, but there are also some variable expenses, like ads and rebates and such." Once again, this is a forecast, not accounting, and you're going to have to estimate things like interest and taxes. Berry recommends you go with simple math. He says multiply estimated profits times your best-guess tax percentage rate to estimate taxes. And then multiply your estimated debts balance times an estimated interest rate to estimate interest.
  • Develop a cash-flow statement. This is the statement that shows physical dollars moving in and out of the business. "Cash flow is king," Pinson says. You base this partly on your sales forecasts, balance sheet items, and other assumptions. If you are operating an existing business, you should have historical documents, such as profit and loss statements and balance sheets from years past to base these forecasts on. If you are starting a new business and do not have these historical financial statements, you start by projecting a cash-flow statement broken down into 12 months. Pinson says that it's important to understand when compiling this cash-flow projection that you need to choose a realistic ratio for how many of your invoices will be paid in cash, 30 days, 60 days, 90 days and so on. You don't want to be surprised that you only collect 80 percent of your invoices in the first 30 days when you are counting on 100 percent to pay your expenses, she says. Some business planning software programs will have these formulas built in to help you make these projections.
  • Income projections. This is your pro forma profit and loss statement, detailing forecasts for your business for the coming three years. Use the numbers that you put in your sales forecast, expense projections, and cash flow statement. "Sales, lest cost of sales, is gross margin," Berry says. "Gross margin, less expenses, interest, and taxes, is net profit."
  • Deal with assets and liabilities. You also need a projected balance sheet. You have to deal with assets and liabilities that aren't in the profits and loss statement and project the net worth of your business at the end of the fiscal year. Some of those are obvious and affect you at only the beginning, like startup assets. A lot are not obvious. "Interest is in the profit and loss, but repayment of principle isn't," Berry says. "Taking out a loan, giving out a loan, and inventory show up only in assets--until you pay for them." So the way to compile this is to start with assets, and estimate what you'll have on hand, month by month for cash, accounts receivable (money owed to you), inventory if you have it, and substantial assets like land, buildings, and equipment. Then figure out what you have as liabilities--meaning debts. That's money you owe because you haven't paid bills (which is called accounts payable) and the debts you have because of outstanding loans.
  • Breakeven analysis. The breakeven point, Pinson says, is when your business's expenses match your sales or service volume. The three-year income projection will enable you to undertake this analysis. "If your business is viable, at a certain period of time your overall revenue will exceed your overall expenses, including interest." This is an important analysis for potential investors, who want to know that they are investing in a fast-growing business with an exit strategy.

How to Write the Financial Section of a Business Plan: How to Use the Financial Section

One of the biggest mistakes business people make is to look at their business plan, and particularly the financial section, only once a year. "I like to quote former President Dwight D. Eisenhower," says Berry. "'The plan is useless, but planning is essential.' What people do wrong is focus on the plan, and once the plan is done, it's forgotten. It's really a shame, because they could have used it as a tool for managing the company." In fact, Berry recommends that business executives sit down with the business plan once a month and fill in the actual numbers in the profit and loss statement and compare those numbers with projections. And then use those comparisons to revise projections in the future.

Pinson also recommends that you undertake a financial statement analysis to develop a study of relationships and compare items in your financial statements, compare financial statements over time, and even compare your statements to those of other businesses. Part of this is a ratio analysis. She recommends you do some homework and find out some of the prevailing ratios used in your industry for liquidity analysis, profitability analysis, and debt and compare those standard ratios with your own.

"This is all for your benefit," she says. "That's what financial statements are for. You should be utilizing your financial statements to measure your business against what you did in prior years or to measure your business against another business like yours." 

If you are using your business plan to attract investment or get a loan, you may also include a business financial history as part of the financial section. This is a summary of your business from its start to the present. Sometimes a bank might have a section like this on a loan application. If you are seeking a loan, you may need to add supplementary documents to the financial section, such as the owner's financial statements, listing assets and liabilities.

All of the various calculations you need to assemble the financial section of a business plan are a good reason to look for business planning software, so you can have this on your computer and make sure you get this right. Software programs also let you use some of your projections in the financial section to create pie charts or bar graphs that you can use elsewhere in your business plan to highlight your financials, your sales history, or your projected income over three years.

"It's a pretty well-known fact that if you are going to seek equity investment from venture capitalists or angel investors," Pinson says, "they do like visuals."

Nizar Ayadi is the founder and CEO of Application University. Application University provide education relevant to industry demand. Whenever you are looking for new career or to build your own start-up, we can help. Join our growing community today for free.