How to calculate net income
Learn what net income is, the formula to calculate it and a worked euro example for Irish small businesses.
December 2023 | Published by Xero
Published Monday 17 August 2026
Table of contents
Net income (and its equation) is the same as net profit.
Key takeaways
- Net income is your total revenue minus all expenses, taxes and deductions. It's also called net profit, net earnings or the bottom line, and it shows how much your business actually keeps.
- To calculate net income, start with your total revenue, subtract the cost of goods sold (COGS) to find gross profit, then subtract operating expenses, interest and taxes.
- Tracking net income regularly helps you assess profitability, plan budgets, apply for funding and make confident decisions about your business.
- Automating your bookkeeping with cloud accounting software like Xero Accounting Software makes it faster and easier to generate accurate profit and loss reports.
What is net income?
Net income is the total amount of money your business keeps after subtracting all expenses, taxes and deductions from your revenue. It's the figure that sits at the bottom of your income statement, which is why it's often called the bottom line.
You might also hear net income referred to as net profit or net earnings. These terms all mean the same thing: the money left over once every cost of running your business has been accounted for. If your expenses exceed your revenue, your net income will be negative, which is known as a net loss.
Why net income matters
Knowing your net income is one of the most practical ways to understand whether your business is financially healthy. It shows you whether you're making a profit or operating at a loss after every cost has been paid.
Net income helps you make better decisions about your business. You can use it to set realistic budgets, plan for growth and identify areas where you could cut costs or increase revenue.
If you're applying for a business loan or seeking investment, lenders and investors will look at your net profit as a key indicator of your business's viability. A strong bottom line builds confidence that your business can meet its financial obligations.
Sole traders in Ireland pay Income Tax, USC and PRSI on their net profits through Revenue's self-assessment system (Form 11), while limited companies pay corporation tax on their profits. Knowing your net income helps you plan for these obligations and file accurately through Revenue Online Service (ROS).
Net income formula
The net income formula is straightforward. At its simplest, it looks like this:
Net income = Total revenue − Total expenses − Taxes
For a more detailed calculation, you can break expenses down further:
Net income = Total revenue − COGS − Operating expenses − Interest − Taxes
Net income uses accrual accounting, meaning revenue and expenses are recorded when earned or incurred, not when cash changes hands. Here's what each part of the formula means:
- Total revenue: the full amount your business earns from sales before any deductions
- Cost of goods sold (COGS): the direct costs of producing or purchasing the products you sell
- Operating expenses: the day-to-day costs of running your business, such as rent, utilities and salaries
- Interest: any interest paid on business loans or credit
- Taxes: corporation tax, income tax or other taxes your business owes
How to calculate net income step by step
Calculating net income is a step-by-step process. Follow these steps to work out your business's net profit for any given period.
- Add up your total revenue. Start by calculating all income your business earned during the period. This includes sales revenue, service fees and any other income such as interest earned or rental income. Use your profit and loss report in Xero Accounting Software to pull this figure automatically.
- Calculate your cost of goods sold. Work out the direct costs associated with producing or purchasing the goods you sold. This includes raw materials, manufacturing costs and direct labour. Subtract COGS from your total revenue to find your gross profit.
- Subtract your operating expenses. Deduct all the ongoing costs of running your business. These include rent, utilities, insurance, marketing, office supplies and employee salaries. These are the expenses that aren't directly tied to producing your product but are essential to keeping your business running.
- Deduct interest payments. If your business has loans, credit lines or other forms of debt, subtract the interest you've paid during the period. This gives you a more accurate picture of your net earnings.
- Subtract taxes. Finally, deduct the taxes your business owes. For Irish businesses, this could include corporation tax for limited companies, or Income Tax, USC and PRSI for sole traders. The figure you're left with is your net income.
Where net income appears on the income statement
Net income sits at the very bottom of the income statement, also known as the profit and loss statement. This is why it's commonly called the bottom line.
The income statement follows a logical flow from revenue to net income. It starts with total revenue at the top, then subtracts COGS to show gross profit. Operating expenses are deducted next to arrive at operating profit. Finally, interest and taxes are subtracted to reveal net income. This structure helps you see exactly where your money goes at each stage.
Example of a net income calculation
Seeing the net income formula in action makes it easier to understand. Here's a worked example for an Irish small business.
Let's say your business sells €35,000 worth of products in a quarter. Your costs break down as follows:
- Cost of goods sold: €14,000
- Operating expenses (rent, salaries, utilities): €3,000
- Taxes owed: €6,000
The net income calculation would be:
€35,000 − €14,000 − €3,000 − €6,000 = €12,000
Your net income for the quarter is €12,000. This is the profit your business gets to keep after all expenses and taxes have been paid. You could reinvest this back into the business, save it for future expenses or distribute it to owners.
Calculating net income from gross profit
If you already know your gross profit, you can calculate net income by subtracting your remaining expenses from that figure. This approach is useful when your accounting records separate direct costs from operating costs.
The formula looks like this:
Net income = Gross profit − Operating expenses − Interest − Taxes
Using the same figures from the example above, your gross profit is €21,000 (€35,000 revenue minus €14,000 COGS). From there:
€21,000 − €3,000 − €6,000 = €12,000
The result is the same: €12,000 net income. Starting from gross profit simply means you've already accounted for your cost of goods sold in a previous step.
Net income vs gross income
Gross income and net income measure different things, and understanding the difference is important for managing your finances accurately.
Gross income (or gross profit) is your total revenue minus the cost of goods sold. It shows how much money you make from selling your products or services before accounting for operating expenses, interest and taxes.
Net income goes further. It subtracts all remaining expenses from your gross profit, giving you the final profit your business keeps. In short, gross profit is revenue minus cost of goods sold, while net income is revenue minus all expenses and taxes.
If your gross profit is healthy but your net income is low, it could mean your operating costs are too high. Reviewing both figures side by side helps you pinpoint where your money is going.
Net income vs operating income, EBIT and EBITDA
Net income, operating income, EBIT and EBITDA all measure profitability, but they account for different costs.
Operating income (also called operating profit) is your revenue minus COGS and operating expenses. It shows how much profit your core business operations generate before interest and taxes are considered.
EBIT stands for earnings before interest and taxes. It's similar to operating income but may include non-operating income such as investment gains. EBITDA goes one step further by also excluding depreciation and amortisation, giving you a view of profitability before any non-cash charges.
Net income is the most comprehensive measure. It accounts for interest, taxes and all other deductions, showing the actual profit available to the business after every expense has been paid.
Net income vs cash flow
Net income and cash flow are related but they don't always tell the same story. A profitable business on paper can still struggle with cash flow if payments come in slowly or large expenses hit at the wrong time.
Net income is an accounting measure based on accrual accounting. Revenue and expenses are recorded when earned or incurred, regardless of when actual money changes hands. Net income also includes non-cash items like depreciation, which reduce profit on paper without affecting your bank balance.
Cash flow tracks the actual movement of money in and out of your business. It includes everything from customer payments and loan repayments to money spent on equipment.
For Irish small businesses, keeping an eye on both figures is essential. Your net earnings might look strong, but if your customers are slow to pay their invoices, you could face a cash shortfall. Using tools like Xero Accounting Software's cash flow tracking helps you stay on top of both.
Limitations of net income
Net income is a useful measure of profitability, but it has some limitations worth understanding.
First, net income does not equal cash. Because it's based on accrual accounting, your income statement may show a profit even when cash is tight.
Second, net income is affected by non-cash items such as depreciation and amortisation. These expenses reduce your reported profit but don't involve any actual cash leaving your business.
Third, accounting assumptions and estimates can influence the figure. Choices around inventory valuation, depreciation methods or bad debt provisions all affect net income. One-off items, such as an asset sale or a legal settlement, can also skew the number and make it harder to compare performance across periods.
Common mistakes when calculating net income
Getting your net income right depends on accurate data and careful calculations. Here are some of the most common errors to watch out for:
- Forgetting to include all expenses: it's easy to overlook smaller costs like bank fees, software subscriptions or professional services. Make sure every business expense is accounted for.
- Mixing up personal and business expenses: if you're a sole trader, keep your personal and business spending separate. Including personal costs in your business expenses will distort your net profit figure.
- Not accounting for depreciation: assets like equipment and vehicles lose value over time. Failing to include depreciation as an expense can make your net income look higher than it actually is.
- Using the wrong time period: make sure your revenue and expenses cover the same period. Mismatched dates lead to inaccurate results.
- Relying on manual calculations: spreadsheets are prone to human error. Using cloud accounting software to automate your bookkeeping reduces mistakes and saves you time.
Track your net income with Xero
Calculating net income doesn't have to be a manual process. Xero Accounting Software automatically pulls your revenue and expenses together, so you can generate a profit and loss report in seconds and see your bottom line at a glance.
With real-time reporting, bank feeds and automated reconciliation, you'll spend less time on bookkeeping and more time running your business. Ready to simplify your finances? Get one month free.
FAQs on how to calculate net income
Here are some frequently asked questions about calculating net income.
Is net income the same as profit?
Net income is the same as net profit. Both terms refer to the amount left after subtracting all expenses and taxes from your total revenue. Gross profit, however, only accounts for the cost of goods sold.
Is net income before or after tax?
Net income is calculated after tax. It represents your final profit once all expenses, including taxes, have been deducted from revenue.
Is net profit the same as net income?
Yes, net profit and net income mean the same thing. Both refer to the money your business keeps after all costs, including operating expenses, interest and taxes, have been subtracted from revenue.
What is the difference between net income and operating income?
Operating income is your profit from core business operations before interest and taxes. Net income goes further by also deducting interest and taxes, showing your final profit after every expense.
What is a good net income for a small business?
A good net income varies by industry and business size. As a general guide, a net profit margin of 10% or higher is considered healthy for most small businesses. Try the net profit margin calculator to check your current position.
Is net income the same as take-home pay?
No. In a business context, net income refers to the profit remaining after all business expenses and taxes. Take-home pay (or net pay) is a personal finance term for the wages an individual receives after deductions like tax, USC and PRSI.
Related terms
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Disclaimer
This glossary is for small business owners. The definitions are written with their requirements in mind. More detailed definitions can be found in accounting textbooks or from an accounting professional. Xero does not provide accounting, tax, business or legal advice.