What is net profit margin? Formula, examples, and tips to improve it

Published Thursday 23 July 2026

Table of contents

• What is net profit margin?
• Net profit margin formula
• How to calculate net profit margin
• What is a good net profit margin?
• Net profit margin vs gross profit margin
• Factors that affect net profit margin
• How to improve your net profit margin
• Track your profitability with Xero
• FAQs on net profit margin

Key takeaways

• Net profit margin is the percentage of revenue left after subtracting all expenses, taxes, and interest. It shows how much of every dollar you earn turns into actual profit.
• You can calculate it by dividing your net profit by total revenue, then multiplying by 100. A margin of 10% or higher is generally considered healthy for small businesses.
• Net profit margin differs from gross profit margin because it accounts for all business costs, not just the cost of goods sold. This makes it a more complete measure of your financial health.
• You can improve your net profit margin by increasing revenue, cutting unnecessary expenses, adjusting pricing, and using accounting software to track your numbers in real time.

Net profit margin is one of the most important metrics for understanding how profitable your business really is. Here's what it means, how to calculate it, and how to improve it.

What is net profit margin?

Net profit margin is the percentage of your total revenue that remains as profit after you subtract all expenses, taxes, and interest. It tells you how much of every dollar your business earns actually ends up as profit.

While revenue shows how much money comes in, net profit margin reveals how much you keep. A business with $500,000 in revenue and a 10% net profit margin keeps $50,000 as profit after covering every cost.

This metric matters because it gives you a clear picture of your overall financial health. If your net profit margin is shrinking, it could signal rising costs, pricing issues, or inefficiencies that need attention.

Net profit margin is also useful for comparing your performance against competitors in your industry. Because it's a percentage rather than a dollar amount, it lets you benchmark businesses of different sizes on an equal footing.

You can find the figures you need to calculate net profit margin on your profit and loss statement (also called an income statement). This report summarizes your revenue, expenses, and profit over a specific period.

Net profit margin formula

The net profit margin formula is straightforward. You divide your net profit by your total revenue, then multiply by 100 to get a percentage.

Net profit margin = (net profit / revenue) x 100

To use this formula, you need to know 2 key figures from your profit and loss statement.

• Revenue: the total amount of money your business earns from sales before any deductions
• Net profit: the amount left after subtracting all expenses from revenue, including cost of goods sold (COGS), operating expenses, interest, and taxes

Your net profit is sometimes called your "bottom line" because it appears at the bottom of your profit and loss statement. It reflects the true earnings of your business after every cost has been accounted for.

How to calculate net profit margin

Calculating net profit margin takes just a few steps. Here's a worked example using a fictional small bakery called Sweet Flour.

Sweet Flour's financials for the quarter look like this.

• Total revenue: $120,000
• Cost of goods sold (COGS): $40,000
• Operating expenses (rent, utilities, wages, marketing): $50,000
• Interest on a business loan: $2,000
• Taxes: $7,000

Follow these steps to calculate the net profit margin.

1. Add up all expenses. $40,000 + $50,000 + $2,000 + $7,000 = $99,000 in total expenses.
2. Subtract total expenses from revenue to find net profit. $120,000 - $99,000 = $21,000 net profit.
3. Divide net profit by revenue. $21,000 / $120,000 = 0.175.
4. Multiply by 100 to get the percentage. 0.175 x 100 = 17.5% net profit margin.

Sweet Flour's net profit margin of 17.5% means the bakery keeps $0.175 of every dollar earned. That's a strong result for a food service business.

You can also use Xero's free net profit margin calculator to run the numbers quickly without doing the math yourself. If you want to learn the formula in more detail, check out our guide on how to calculate net profit margin.

What is a good net profit margin?

A "good" net profit margin depends on your industry, business model, and growth stage. However, there are some general benchmarks that can help you gauge where you stand.

• 5% or below: considered low; your business has limited room to absorb unexpected costs
• 10%: generally considered healthy for most small businesses
• 20% or above: considered strong; indicates efficient cost management and solid pricing

Industries with high overhead, like food service and retail, often operate on thinner margins of 3% to 9%. Service-based businesses, such as consulting or accounting firms, tend to have higher margins because they carry fewer material costs. You can learn more about how to measure profitability across different metrics.

Your business stage also plays a role. Early-stage businesses frequently have lower margins because of startup costs and investments in growth. As your business matures and you optimize operations, margins often improve.

Rather than comparing yourself to a universal standard, compare your net profit margin to others in your specific industry and track how it changes over time. A consistent upward trend is a positive sign, even if your absolute number seems modest.

Net profit margin vs gross profit margin

Net profit margin and gross profit margin both measure profitability, but they capture different things. Understanding what profit margin means in its various forms helps you pinpoint where your business is performing well and where there's room for improvement. Understanding the difference helps you identify strengths and areas for improvement.

Gross profit margin measures the percentage of revenue left after subtracting only the cost of goods sold (COGS). It shows how efficiently you produce or source the products and services you sell.

Gross profit margin = (revenue - COGS) / revenue x 100

Net profit margin goes further. It subtracts all expenses, including operating costs, interest, and taxes, giving you a complete picture of profitability.

For example, if your business has $200,000 in revenue and $80,000 in COGS, your gross profit margin is 60%. But if your operating expenses, interest, and taxes add up to $90,000, your net profit margin drops to 15%.

A high gross profit margin paired with a low net profit margin often points to excessive overhead or operating costs. If you notice this gap, look at your rent, staffing, marketing spend, or loan payments to find areas where you can reduce costs.

Both metrics are valuable. Use gross profit margin to evaluate your pricing and production efficiency. Use net profit margin to assess the overall health and sustainability of your business.

Factors that affect net profit margin

Several factors influence your net profit margin, and understanding them helps you make smarter business decisions. Here are the most common ones for small businesses.

Revenue changes can shift your margin in either direction. Growing your sales without proportionally increasing costs will boost your margin, while a revenue dip without expense reductions will shrink it.

Cost of goods sold directly impacts how much profit you retain from each sale. Rising supplier prices, material costs, or shipping fees can erode your margin if you don't adjust your pricing accordingly.

Operating expenses like rent, wages, utilities, and marketing all eat into your bottom line. Keeping these costs under control is essential for maintaining a healthy margin.

Pricing strategy plays a significant role. Pricing too low to compete might win customers but squeeze your margin. Finding the right balance between competitive pricing and profitability is key.

Tax obligations and interest payments reduce your net profit directly. High-interest debt or unexpected tax liabilities can put downward pressure on your margin, even when sales are strong.

Industry dynamics also matter. Some industries naturally operate with lower margins due to high competition or heavy regulation. Knowing what's typical for your sector helps you set realistic targets.

How to improve your net profit margin

Improving your net profit margin comes down to earning more, spending less, or doing both. Here are practical steps you can take to increase your profits.

Review your pricing regularly. Many small business owners set prices once and rarely revisit them. Check whether your prices reflect your current costs, market conditions, and the value you deliver.

Cut unnecessary expenses by auditing your spending every quarter. Look for subscriptions, services, or vendor contracts that no longer provide value, and cancel or renegotiate them.

Increase your average sale value by bundling products, upselling complementary services, or offering tiered pricing. Even small increases per transaction add up over time.

Negotiate with suppliers to get better rates on materials or bulk discounts. Building long-term relationships with vendors can often lead to more favorable terms.

Reduce manual admin work by automating repetitive tasks. Using accounting software to handle invoicing, bank reconciliation, and expense tracking saves time and reduces errors that cost money.

Monitor your numbers consistently. Reviewing your profit and loss statement monthly, rather than quarterly or annually, lets you spot trends early and make adjustments before small issues become big problems.

Focus on retaining existing customers. Acquiring new customers often costs more than keeping current ones. Strong customer relationships lead to repeat business and more predictable revenue.

Track your profitability with Xero

Knowing your net profit margin is the first step. Tracking it consistently is what helps you make confident decisions and grow your business over time. Xero's cloud accounting software gives you real-time visibility into your revenue, expenses, and profitability, so you can see exactly where your money goes. With customizable reports, automated bank feeds, and a clear dashboard, staying on top of your margins doesn't have to be complicated. Get one month free.

FAQs on net profit margin

Here are answers to frequently asked questions about net profit margin.

What is a good net profit margin for a small business?

A net profit margin of around 10% is generally considered healthy for most small businesses. However, what counts as "good" varies by industry, so compare your margin to others in your specific sector.

How is net profit margin different from gross profit margin?

Gross profit margin only subtracts the cost of goods sold from revenue, while net profit margin subtracts all expenses, including operating costs, interest, and taxes. Net profit margin gives you a more complete picture of your overall profitability.

Can net profit margin be negative?

Yes, a negative net profit margin means your total expenses exceed your revenue, resulting in a net loss. This can happen during periods of heavy investment, economic downturns, or when costs rise faster than sales.

How often should you check your net profit margin?

Review your net profit margin monthly so you can spot trends early and respond quickly. Quarterly and annual reviews are also valuable for seeing bigger patterns and planning ahead.

Why is net profit margin important for small businesses?

Net profit margin shows whether your business is actually keeping money after all costs are paid. It helps you make informed pricing, spending, and growth decisions based on real profitability rather than just revenue.