How to calculate profit

Published Thursday 23 July 2026

Table of contents

• What is profit?
• The profit formula
• Types of profit and how to calculate them
• Profit calculation example
• How to calculate profit margins
• What is a good profit margin?
• Common profit calculation mistakes to avoid
• How to improve your profit
• Track your profit with Xero
• FAQs on calculating profit

Key takeaways

• Profit is the money left after you subtract all business expenses from your total revenue, and it comes in 3 forms: gross profit, operating profit and net profit.
• Knowing how to calculate each type of profit helps you spot where your business is spending too much and where it's performing well.
• Profit margins turn your profit figures into percentages, making it easier to compare your performance over time or against industry benchmarks.
• Tracking your profit regularly, rather than once a year, gives you the real-time visibility you need to make confident financial decisions.

What is profit?

Profit is the amount of money your business keeps after paying all its costs. It's the simplest measure of whether your business is financially healthy.

When your revenue is higher than your expenses, you're making a profit. When expenses exceed revenue, you're running at a loss. Understanding profit isn't just about knowing a number; it's about having a clear picture of your business performance so you can plan ahead with confidence.

There are different types of profit, and each one tells you something different about your business. Gross profit shows how efficiently you deliver your products or services. Operating profit reveals whether your day-to-day running costs are under control. Net profit tells you what you actually take home after everything is paid.

The profit formula

The basic formula for calculating profit is straightforward. At its simplest, profit equals your total revenue minus your total expenses.

Profit = Revenue - Expenses

This formula applies whether you're a sole trader, a limited company or a partnership. The key is understanding what counts as revenue and what counts as expenses, because getting either wrong will throw off your profit calculation.

What is revenue?

Revenue is the total amount of money your business earns from selling goods or services before any costs are deducted. You might also hear it called turnover or sales income.

For example, if you run a consultancy and invoice clients a total of 10,000 pounds in a month, that's your monthly revenue. It's the starting point for every profit calculation. Revenue does not include money from loans, grants or asset sales, as these aren't part of your core trading activity.

What are business expenses?

Business expenses are the costs you incur to earn your revenue. They generally fall into 2 categories: direct costs and indirect costs.

Direct costs (also called cost of goods sold, or COGS) are expenses tied directly to producing your product or delivering your service. These include raw materials, manufacturing costs and direct labour. Indirect costs are your overheads: rent, utilities, insurance, marketing, office supplies and administrative salaries.

Getting a clear view of both types of expense is essential. If you only track direct costs, you'll overestimate your profit. If you lump everything together, you won't be able to see where your money is really going.

Types of profit and how to calculate them

There are 3 main types of profit, and each one gives you a different insight into your business finances. Calculating all 3 helps you build a complete picture of your financial health.

Gross profit

Gross profit is your revenue minus your direct costs (COGS). It shows how much money you keep after paying for the goods or services you sell, before accounting for overheads.

Gross profit = Revenue - Cost of goods sold (COGS)

If your gross profit is low or shrinking, it usually means your production costs are too high relative to your prices. This is the first place to look when profitability starts to dip.

Operating profit

Operating profit takes things a step further by subtracting your operating expenses from your gross profit. Operating expenses include rent, utilities, salaries, marketing and other day-to-day running costs.

Operating profit = Gross profit - Operating expenses

This figure tells you whether your core business operations are profitable before interest and tax. A healthy operating profit means your business model is working. A weak one may signal that your overheads are eating into your earnings.

Net profit

Net profit is your bottom line. It's what remains after you subtract all expenses, including operating costs, interest payments and corporation tax.

Net profit = Operating profit - Interest - Tax

Net profit is the figure that matters most when you're assessing the overall financial performance of your business. It's also the number HMRC uses to calculate your tax liability. If you're a limited company in the UK, you'll need to report your net profit as part of your annual accounts.

Profit calculation example

Seeing the formulas in action makes them easier to understand. Here's a worked example using a small UK bakery.

Let's say the bakery earns 8,000 pounds in revenue during a month. Its direct costs (flour, butter, packaging and part-time baker wages) come to 3,200 pounds. That gives a gross profit of 4,800 pounds.

The bakery's operating expenses for the month are:

• Shop rent: 1,200 pounds
• Utilities: 300 pounds
• Marketing and delivery: 200 pounds
• Insurance: 100 pounds

Total operating expenses: 1,800 pounds. So operating profit is 4,800 pounds minus 1,800 pounds, which equals 3,000 pounds.

After accounting for a 50-pound loan interest payment and estimated corporation tax of 570 pounds (at the small profits rate of 19%, which applies to companies with taxable profits under 50,000 pounds), the bakery's net profit for the month is 2,380 pounds.

This example shows why calculating all 3 types of profit matters. The bakery's gross profit looked healthy at 4,800 pounds, but by the time overheads, interest and tax were deducted, the actual take-home figure was considerably lower.

How to calculate profit margins

Profit margins express your profit as a percentage of revenue. They're useful because raw profit figures don't tell you how efficient your business is. A business making 50,000 pounds profit on 500,000 pounds revenue is far more efficient than one making the same profit on 2 million pounds revenue.

Gross profit margin

Gross profit margin shows the percentage of revenue remaining after direct costs. It tells you how efficiently you're producing or sourcing what you sell.

Gross profit margin = (Gross profit / Revenue) x 100

Using the bakery example: (4,800 / 8,000) x 100 = 60%. That means for every pound of revenue, 60p is left after covering direct costs.

Operating profit margin

Operating profit margin measures how much of your revenue is left after both direct costs and operating expenses. It's a strong indicator of how well you're managing your overheads.

Operating profit margin = (Operating profit / Revenue) x 100

For the bakery: (3,000 / 8,000) x 100 = 37.5%. This is a solid operating margin, suggesting the business is keeping its day-to-day costs under control.

Net profit margin

Net profit margin is the most comprehensive measure. You can use a net profit margin calculator to check yours quickly. It tells you what percentage of your revenue you actually keep as profit after every expense, including tax and interest.

Net profit margin = (Net profit / Revenue) x 100

For the bakery: (2,380 / 8,000) x 100 = 29.75%. This is the truest measure of overall business profitability.

What is a good profit margin?

There's no single "good" profit margin that applies to every business. What counts as healthy depends on your industry, your business model and your growth stage.

As a general guide for UK small businesses, here are some typical net profit margin ranges by sector:

• Professional services (consulting, accounting): 15% to 40%
• Retail: 2% to 10%
• Food and hospitality: 3% to 9%
• Construction and trades: 5% to 15%
• Technology and software: 10% to 30%

Rather than chasing a specific number, focus on your profit margin trend. A margin that's stable or growing over time is a strong sign. A declining margin, even if the figure is still positive, signals that costs may be creeping up or pricing may need a review.

Comparing your margins to industry averages is also useful. If you're consistently below the average for your sector, it's worth investigating whether your pricing, cost structure or sales volume could improve.

Common profit calculation mistakes to avoid

Even experienced business owners can make errors when calculating profit. Being aware of the most common pitfalls helps you keep your figures accurate.

• Forgetting indirect costs: only counting direct costs inflates your profit figure and gives you a misleading picture of business health.
• Confusing profit with cash flow: profit is an accounting measure, while cash flow tracks the actual money moving in and out of your account. You can be profitable on paper but still run out of cash if customers pay late.
• Mixing up time periods: comparing monthly revenue against quarterly expenses will produce inaccurate results. Always match revenue and expenses to the same period.
• Ignoring one-off costs: large one-time expenses like equipment purchases or legal fees can distort a single month's profit. Track them separately so your regular profit figures stay reliable.
• Confusing markup with margin: markup is calculated on your cost price, while margin is calculated on your selling price. Using one when you mean the other can lead to pricing mistakes.

How to improve your profit

Once you know how to calculate your profit, the next step is finding ways to increase it. There are 3 main levers you can pull: increase revenue, reduce costs or do both.

Here are practical strategies that work for UK small businesses:

• Review your pricing: if your costs have risen but your prices haven't, your margins are shrinking. A small price increase, even 3% to 5%, can have a significant impact on profit.
• Cut unnecessary overheads: audit your regular expenses for subscriptions, services or suppliers you no longer need. Switching to more cost-effective alternatives frees up margin.
• Improve your invoicing process: late payments hurt cash flow and can mask profit issues. Sending invoices promptly and offering online payment options helps you get paid on time.
• Focus on high-margin products or services: not everything you sell contributes equally to profit. Identify your most profitable lines and put more energy behind them.
• Monitor profit regularly: checking your profit monthly, rather than waiting until year-end, gives you time to spot problems and act on them. Real-time financial reporting makes this much easier.

Track your profit with Xero

Calculating profit manually is time-consuming and leaves room for error, especially as your business grows. Cloud accounting software takes the manual work out of the equation by pulling your income and expenses together in one place.

With Xero, you can generate profit and loss reports in a few clicks, giving you a clear view of gross, operating and net profit whenever you need it. Real-time financial data means you're always working with up-to-date figures, not last month's spreadsheet.

Whether you're tracking margins across product lines, preparing for Making Tax Digital submissions, or simply want to understand where your money goes, Xero helps you stay on top of your numbers so you can focus on running your business. Get one month free.

FAQs on calculating profit

Here are some frequently asked questions about calculating profit.

What is the difference between profit and revenue?

Revenue is the total money your business earns from sales before any costs are deducted. Profit is what's left after you subtract expenses from that revenue, so it's always a smaller figure than revenue.

What is profitability vs profit?

Profit is a specific monetary amount, for example 5,000 pounds per month. Profitability is a relative measure that looks at how efficiently your business generates that profit, usually expressed as a percentage through profit margins.

What is the difference between markup and profit margin?

Markup is calculated as a percentage of your cost price, while profit margin is calculated as a percentage of your selling price. For example, a product that costs 10 pounds and sells for 15 pounds has a 50% markup but a 33.3% profit margin.

How often should I calculate my profit?

For most small businesses, monthly profit calculations provide the right balance of accuracy and actionable insight. Quarterly reviews are a minimum, but monthly tracking lets you catch trends and problems sooner.

How is profit used when seeking funding?

Lenders and investors look at your profit figures to assess whether your business can repay a loan or generate returns. A consistent record of net profit, along with healthy margins, strengthens your case when applying for a business loan or pitching to investors.