A business plan is a document that describes what your business does, how it makes money, and where it’s headed. Whether you need one to secure a loan, attract investors, or simply organize your thinking before launch, the process follows a predictable structure. The U.S. Small Business Administration outlines nine core sections that make up a traditional business plan. Here’s how to work through each one.
Decide Which Format You Need
Before you start writing, figure out whether you need a full traditional plan or a lean one-page canvas. A traditional business plan is the standard when you’re applying for a bank loan, pitching investors, or planning long-term growth. It runs anywhere from 15 to 40 pages and covers financials, market analysis, and operations in detail. Lenders and the SBA expect this level of thoroughness.
A lean canvas works better if you’re in the early stages of a startup, especially in a fast-moving market where you’re still testing whether customers actually want what you’re building. It fits on a single page and focuses on your value proposition, customer segments, revenue streams, and key metrics. Many founders start with a lean canvas to validate their idea, then expand into a traditional plan when they need funding. If anyone reviewing your plan controls money you want, go traditional.
Write the Executive Summary Last
The executive summary sits at the front of your plan, but write it after everything else is done. This section is a compressed version of the entire document, typically one to two pages. It should cover your company’s mission, the product or service you offer, your leadership team, where you’re located, and your high-level growth plans. A reader who only looks at this page should walk away understanding what your business does and why it will succeed.
For investor or lender audiences, include a sentence or two on how much funding you’re seeking and what you’ll use it for. Think of the executive summary as a cover letter: it frames the conversation and determines whether the reader keeps going.
Describe Your Company
The company description goes deeper than the summary. Spell out the specific problem your business solves, who you solve it for, and what gives you an edge over competitors. If you run a commercial cleaning company that uses only nontoxic products, the problem is that businesses want clean workspaces without exposing employees to harsh chemicals. Your target customers are office managers at mid-size companies. Your competitive advantage is a proprietary cleaning process and a roster of trained, certified staff.
Be concrete. Vague statements like “we provide excellent service” don’t tell a lender anything. Name the consumer or organization you plan to serve and explain why your approach is different or better than what already exists.
Build Your Market Analysis
This section proves you understand your industry and the customers in it. Start by sizing your market using three layers. Your Total Available Market (TAM) is the revenue opportunity if every possible customer bought your product. Your Serviceable Available Market (SAM) narrows that to the customers you can realistically reach given your geography, pricing, and distribution. Your Serviceable Obtainable Market (SOM) is the slice of SAM you can actually capture in the near term.
To calculate market size, use a simple formula: price multiplied by quantity. Identify how many people fit your customer profile, how often they buy, and what they currently pay for comparable products. If incumbents exist in your market, pull data from their annual reports, industry publications, or trade associations. Avoid the trap of citing a massive industry figure and claiming you’ll capture some tiny percentage of it. Investors see through that immediately. An industry is not a market. You need to substantiate every number with the price and quantity behind it.
Include competitive research here. There is no such thing as “no competition.” Your customers are doing something today to address their need, even if that something is clunky or inefficient. The toughest competitor is always inertia, the tendency for people to keep doing what they’re already doing. Show that you understand what alternatives exist and explain specifically why customers would switch to you.
Outline Organization and Management
State your business’s legal structure (LLC, S corporation, sole proprietorship, partnership, etc.) and explain who runs it. Use an organizational chart if your team has more than a few people. For each key leader, briefly describe their role and the experience that qualifies them for it. A lender reviewing your plan wants to see that the people running the company have relevant backgrounds, not just enthusiasm.
If you have advisors, a board of directors, or outside consultants who bring specialized expertise, mention them here. For solo founders, this section can be short, but don’t skip it. Even a one-person operation benefits from showing that the founder has industry knowledge or relevant skills.
Explain Your Product or Service
Describe what you sell in plain terms. Focus on how your product or service benefits the customer, not just what it is. If you sell project management software, don’t just list features. Explain that your software helps small construction firms track job progress and expenses in one place, reducing billing errors and saving an average of five hours per week in administrative time.
Cover the product lifecycle: where you are now (concept, prototype, market-ready) and where you plan to go. If you have intellectual property like patents, trademarks, or proprietary technology, detail them. If you’re investing in research and development, describe what you’re working on and the timeline for bringing it to market.
Define Marketing and Sales Strategy
This section answers two questions: how will you attract customers, and how will a sale actually happen? Break it into those two parts.
For marketing, describe the specific channels you’ll use to reach your target audience. That might include paid search advertising, content marketing, partnerships with complementary businesses, trade shows, or direct outreach. Tie your channel choices back to your market analysis. If your target customers are office managers at mid-size companies, explain that you’ll reach them through LinkedIn advertising and industry conferences rather than Instagram.
For sales, walk through the customer journey from first contact to purchase. If you sell online, describe the funnel: a visitor lands on your site, signs up for a free trial, receives onboarding emails, and converts to a paid plan after 14 days. If you sell through a sales team, explain the typical sales cycle length, how leads are qualified, and what the closing process looks like. Include your pricing strategy and explain why you chose it.
Make Your Funding Request
If you’re writing this plan to raise money, state exactly how much you need, what type of funding you’re seeking (debt or equity), and what you’ll spend it on. Be specific. “We are seeking $250,000 in SBA-backed loan financing to purchase equipment, hire two technicians, and fund six months of operating expenses” is far more convincing than “we need capital to grow.”
Project your funding needs over the next three to five years if you anticipate needing additional rounds. Lenders reviewing your plan will evaluate whether your business is creditworthy and whether you demonstrate a reasonable ability to repay the loan. For SBA loans specifically, your business must operate for profit, be located in the U.S., qualify as small under SBA size standards, and show that you can’t get comparable credit on reasonable terms elsewhere. Your funding request should make it easy for the reviewer to check those boxes.
Build Financial Projections
Financial projections are where many plan writers stall, but the structure is straightforward. You need three core financial statements projected forward, typically covering three to five years.
The first is a projected income statement (also called a profit and loss statement). This forecasts your revenue, subtracts the direct costs of producing your product (cost of goods sold), then subtracts operating expenses like rent, salaries, marketing, and software. The bottom line is your net income: what’s left after all costs, interest, and taxes.
The second is a projected cash flow statement. This tracks money moving in and out of your business month by month. Cash inflows include sales revenue, loans, and any other funding. Cash outflows include operating expenses, inventory purchases, loan repayments, and taxes. The difference between inflows and outflows each period is your net cash flow. A business can be profitable on paper and still run out of cash if payment timing is off, which is why this statement matters so much.
The third is a projected balance sheet. This is a snapshot of what your company owns (assets like cash, equipment, inventory, and accounts receivable), what it owes (liabilities like loans, taxes, and wages payable), and the difference between the two (equity).
For Year 1, break projections out monthly so you can spot cash flow gaps, seasonal dips, and ramp-up challenges. Switch to quarterly projections for Year 2 and annual projections for Years 3 through 5. Build at least three scenarios: a base case using your realistic estimates, a best case if sales outperform expectations, and a worst case if revenue falls short or costs spike. Showing all three tells a lender or investor that you’ve stress-tested your assumptions.
Compile the Appendix
The appendix holds supporting documents that back up claims in your plan. Include items like resumes of key team members, product photos, letters of reference, licenses and permits, patents, lease agreements, and any legal documents relevant to the business. If a lender or investor requests specific materials like personal credit histories or contracts with suppliers, this is where they go.
Keep the appendix organized with a table of contents so readers can find what they need quickly. Not every plan needs a lengthy appendix, but having one ready shows preparation and makes due diligence easier for anyone evaluating your business.
Tips for a Stronger Plan
Keep your language clear and direct. The person reading your plan may review dozens of them. Dense paragraphs full of jargon slow them down and erode confidence. Use short sentences, specific numbers, and plain English to describe your customer and their need.
Ground every claim in evidence. If you say the market for your product is growing, cite the growth rate and where it came from. If you say your margins will be 40%, show the math. Unsupported optimism is the fastest way to lose credibility with a lender or investor.
Revisit and update your plan regularly. A business plan is not a one-time document. As your revenue data comes in and your market shifts, update your projections and strategy. Many successful businesses review their plan quarterly to compare actual performance against their forecasts and adjust course.