One of the most critical – and often most daunting – parts of writing a business plan is the financial section. Specifically, estimating profits. Many first-time entrepreneurs either guess wildly or skip it altogether, which is a costly mistake. Investors, lenders, and even your future self need to see a clear, logical picture of when and how your business will make money. The good news is that projecting profits doesn’t require a finance degree. It comes down to three core steps: calculating profitability, identifying your break-even point, and adjusting your numbers to hit a desired profit target.
Table of Contents
- Calculating profitability: the starting point for any business plan
- The three types of profit you need to know
- Estimating sales revenue
- Fixed costs vs. variable costs
- Understanding the break-even point
- The break-even formula
- Why the break-even point matters in a business plan
- Adjusting for desired profit levels
- Calculating required sales for a target profit
- Adjusting your pricing strategy
- Adjusting production volume and costs
- Setting realistic profit margin benchmarks
- Putting it all together in your business plan
Calculating profitability: the starting point for any business plan
Profit is straightforward in definition: it’s what remains after you subtract all costs from total revenue. As the U.S. Chamber of Commerce explains, profit tells you how much your business earned after costs – and it’s the clearest indicator of whether your company is viable in the long run. But there’s more than one type of profit to understand, and each tells a different part of the story.
The three types of profit you need to know
Gross profit is the first figure you’ll calculate. Take your total sales revenue and subtract the direct cost of producing your product or delivering your service – known as the Cost of Goods Sold (COGS). For example, if your business earns $500,000 in revenue and it costs $200,000 to produce your goods, your gross profit is $300,000, giving you a gross profit margin of 60%.
Operating profit goes further. From your gross profit, you subtract all operating expenses – rent, employee salaries, utilities, marketing, insurance, and similar overheads. Operating profit reflects the efficiency of your business operations and is considered a more accurate indicator of business health than gross profit alone. Using the example above, if operating expenses total $100,000, your operating profit drops to $200,000.
Net profit is the bottom line – what’s left after paying interest on any debt and taxes. This is the figure that truly shows whether a business is financially sustainable. If the same business pays $20,000 in interest and $30,000 in taxes, net profit comes to $150,000. This is the number investors look at most closely.
For your business plan, you’ll want to project each of these figures. Start by estimating your expected sales revenue – be realistic, not optimistic. Then research your expected costs thoroughly. As Sage advises, new businesses should talk directly to mentors, vendors, and suppliers to get accurate cost figures, since guessing can severely distort your projections.
Estimating sales revenue
Your revenue estimate should reflect realistic market conditions. Research how many customers you can reasonably expect, what price they’re willing to pay, and how frequently they’ll buy. Rather than starting with a big annual number, break it down: how many units per month, at what price? Multiply those out to get monthly revenue projections, then extend to 12 months and beyond. The U.S. Small Business Administration recommends that your cost and revenue estimates be broken down month-by-month for the first year, and annually for the following two years – a format lenders and investors expect to see.
Fixed costs vs. variable costs
Getting your costs right is just as important as estimating revenue. Fixed costs stay the same regardless of how much you sell – rent, loan repayments, software subscriptions, and salaried employees all fall into this category. Variable costs change in proportion to your output – raw materials, shipping, and sales commissions are typical examples. Understanding this distinction is essential, not just for profit calculation, but for the break-even analysis that follows.
Understanding the break-even point
Before a business can make a profit, it must first stop losing money. The break-even point is the exact moment when your total revenue equals your total costs – no profit yet, but no loss either. According to the SBA, this calculation is often a requirement when seeking investors or financing, because it demonstrates that your business model is viable.
The break-even formula
There are two standard ways to express your break-even point: in units sold, or in sales revenue. The unit-based formula is:
Break-Even Point (units) = Fixed Costs ÷ (Sales Price per Unit – Variable Cost per Unit)
The difference between your sales price and variable cost per unit is called the contribution margin – it’s the amount each unit sold contributes toward covering your fixed costs. As Square explains, if you sell a product for $100 and it costs $40 in materials and labor to make, your contribution margin is $60. Every unit sold contributes $60 toward paying off your fixed costs.
To illustrate: if your fixed monthly costs are $12,000 and your contribution margin per unit is $60, your break-even point is 200 units per month. Sell fewer than 200 units and you’re operating at a loss. Sell more, and you’re generating profit.
For businesses selling services rather than physical products, the revenue-based formula is more useful:
Break-Even Point (sales dollars) = Fixed Costs ÷ Contribution Margin Ratio
The contribution margin ratio is simply the contribution margin divided by the selling price. Using the example above: $60 ÷ $100 = 0.60. So if fixed costs are $12,000, you need $12,000 ÷ 0.60 = $20,000 in revenue to break even each month.
Why the break-even point matters in a business plan
Break-even analysis is powerful because it makes your risk tangible. It tells you the minimum performance your business needs to survive – not thrive, just survive. From there, you can ask critical questions: Is this number achievable given your market? How long will it realistically take to reach it? As Paychex notes, some businesses may take months or even years before breaking even, and mapping this out in advance helps you plan the cash flow needed to bridge that gap.
It’s also wise to add a buffer of around 10% to your break-even estimate to account for unpredictable expenses – a vendor delay, a slow sales month, or an unexpected equipment cost can all push your actual break-even point higher than your projections suggest.
Adjusting for desired profit levels
Breaking even is a milestone, not a destination. The next step in your business plan is to project a target profit – the specific dollar amount or percentage you aim to earn – and then work backward to figure out what it takes to get there. This process, sometimes called Cost-Volume-Profit (CVP) analysis, connects your profit goals directly to sales volume and pricing decisions.
Calculating required sales for a target profit
The formula for finding out how many units you need to sell to hit a specific profit target is a simple extension of the break-even formula:
Required Sales (units) = (Fixed Costs + Target Profit) ÷ Contribution Margin per Unit
As Tempo explains, if the numbers come back unrealistic – say, you’d need to sell 10,000 units in a market that can only support 3,000 – you have two choices: adjust your target profit, or adjust your unit price and production costs to improve the contribution margin. Running multiple projections this way gives you a clearer picture of best- and worst-case scenarios, which makes your business plan far more credible to reviewers.
Adjusting your pricing strategy
Pricing is one of the most direct levers you have for hitting a profit target. A common and straightforward approach is cost-plus pricing: calculate your total cost per unit, then add a markup percentage that reflects both overhead recovery and your desired profit margin. Mailchimp’s pricing guide describes the target-margin pricing formula as:
Product Price = Product Cost ÷ (1 – Target Profit Margin)
So if it costs $15 to produce a product and you want a 40% profit margin, the required selling price is $15 ÷ 0.60 = $25. This ensures your margin is baked in from the start, rather than discovered after the fact.
That said, pricing isn’t only a math exercise. The U.S. Chamber of Commerce cautions that pricing strategies must also reflect what the market will actually bear – what competitors charge, and what customers are willing to pay. Setting a price that achieves your target margin on paper but exceeds what customers will pay means your sales projections won’t hold up in practice.
Adjusting production volume and costs
If raising prices isn’t feasible in your market, reducing costs is the other path to a better profit margin. This means scrutinizing your variable costs – can you source materials more cheaply? Streamline a production step? Negotiate better supplier terms? It also means examining fixed costs: is every overhead expense necessary, especially at the startup stage?
Brex highlights several common approaches: renegotiating supplier contracts, eliminating underperforming product lines, and automating processes where possible. Each of these changes directly improves your contribution margin, which in turn lowers the number of units you need to sell to hit your profit target.
Increasing production volume can also improve profitability through economies of scale – as output rises, fixed costs are spread across more units, reducing the cost per unit. This is why early projections in a business plan often show losses that shrink over time as the business scales up.
Setting realistic profit margin benchmarks
When deciding what profit margin to target, industry averages are a useful reference point. According to business finance advisors at Orba Cloud CFO, your target should reflect your industry norms, your growth goals, and your specific cost structure. Retail businesses typically operate on thinner margins than service-based businesses because of higher overhead costs. A net profit margin of around 5-10% is considered reasonable across many sectors, though software and professional services can see significantly higher margins.
The key is to make your target realistic and defensible. A business plan that projects 40% net margins in a low-margin industry will raise immediate red flags with investors. Ground your projections in research, be conservative in your estimates, and show the work – the formulas and assumptions behind your numbers. That transparency is what turns a profit estimate from a wish into a credible financial plan.
Putting it all together in your business plan
Your profit projections in a business plan should follow a logical sequence. Start with your estimated sales revenue, subtract your costs to show gross, operating, and net profit. Then present your break-even analysis to demonstrate when the business will stop losing money. Finally, outline the specific sales volumes or pricing adjustments needed to hit your target profit margin. Together, these three elements – profitability calculation, break-even analysis, and target profit planning – give any reader a complete and honest financial picture of your business.
Revisit these numbers regularly once the business is running. QuickBooks recommends quarterly profitability reviews at a minimum, with additional reviews any time you make a significant change – a new product, a price adjustment, or a shift in your cost structure. Your initial estimates are a starting point, not a fixed truth.
What do you think? When you look at a business idea you care about, which feels harder to estimate accurately – your potential revenue or your true costs? And if your break-even analysis revealed a number that seemed out of reach, would you adjust your pricing, reduce your costs, or reconsider the business model entirely?
References
- https://www.uschamber.com/co/run/finance/how-to-calculate-profit
- https://www.everlance.com/blog/how-to-calculate-business-profit-margin
- https://outoftheboxtechnology.com/blog/how-to-calculate-profit-for-business-guide
- https://www.sage.com/en-gb/blog/how-to-estimate-figures-for-your-business-plan/
- https://www.sba.gov/business-guide/plan-your-business/calculate-your-startup-costs
- https://www.sba.gov/business-guide/plan-your-business/calculate-your-startup-costs/break-even-point
- https://squareup.com/us/en/the-bottom-line/managing-your-finances/how-to-calculate-break-even-point-analysis
- https://corporatefinanceinstitute.com/resources/accounting/break-even-analysis/
- https://www.paychex.com/articles/finance/how-to-calculate-your-business-break-even-point
- https://www.tempo.io/blog/target-profit
- https://mailchimp.com/resources/how-to-price-your-products-to-turn-a-profit/
- https://www.uschamber.com/co/run/finance/how-to-measure-business-profitability
- https://www.brex.com/journal/what-is-a-good-profit-margin
- https://www.orbacloudcfo.com/target-profit-margin/
- https://quickbooks.intuit.com/r/pricing-strategy/4-ways-to-measure-your-profitability/
Leave a Reply