The basics of business finance: income and expenditure

Anna Stubbs • November 15, 2025

Understanding the financial management of your small business is a vital skill as a business owner. And it starts with an awareness of two fundamental concepts: income and expenditure.

Grasping the difference between what comes in, and what goes out, is crucial for your financial health, making informed business decisions and the overall survival of the company.

Let's break down the basics.

1. What is income (revenue) and how do you generate it?

Income, often called revenue, is the money your business earns from its core operations, before any costs are deducted.


This income comes primarily from selling your goods or services to customers. Whether you're selling handmade crafts, offering consulting services or running a local café, every sale contributes to your income. You may have secondary sources of income as well, such as rental income from property, or interest you’ve earned on your business savings.



The goal is to maximise your income streams through effective sales, marketing and excellent customer service. This ensures you have a steady flow of cash coming into the business.


2. What is expenditure (costs) and how do you manage these costs?

Expenditure, or costs, refers to the money you spend in order to operate, trade and generate your income as a business.


This expenditure can be direct costs, like the raw materials for a product, or indirect overheads, such as rent, utilities, salaries, marketing, and office supplies.


Effectively managing these expenses is vital for your cashflow and profitability. Keeping your spending under control means reviewing your outgoings, negotiating prices with your suppliers and distinguishing between essential spending and discretionary expenses.


Careful cost control ensures that your hard-earned income isn't eaten up by unnecessary outgoings, helping you take care of the financial health of the business.


3. What is a profit and loss report and why is it important?

Your profit and loss (P&L) report, sometimes known as an ‘income statement’, is a crucial financial document that summarises your business's income and expenditure over a specific period (e.g. a month, quarter, or year).


Your P&L report directly accounts for income by listing all revenue generated at the top. Below this, it details all the associated expenditures, categorised for clarity (for example, cost of goods sold, operating expenses, administrative costs etc.).


By subtracting total expenditures from total income, the P&L report ultimately reveals your business's net profit or loss for that period. This gives you a clear overview of your financial performance during a specific period.


If you’re new to financial management, getting your head around the ins and outs of accounting can be a complex task. But it doesn’t have to be rocket science.

Come and talk to our team. We’ll be happy to explain the importance of income and expenditure and how these metrics are represented in your P&L report.

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