Expense

Published Thursday 6 August 2026

Table of contents

• What is an expense?
• Expense vs expenditure vs cost
• Common types of expenses
• How expenses are recorded
• Examples of common business expenses
• Why tracking and categorising expenses matters
• Manage your business expenses with Xero
• FAQs on expenses
• Related terms
• Learn more about expenses

Key takeaways

• An expense is a cost your business incurs to generate revenue, recorded on the income statement in the period it occurs.
• Operating expenses cover day-to-day costs like rent and wages, while capital expenditure relates to long-term assets and is treated differently for tax purposes.
• In Hong Kong, only expenses incurred in the production of chargeable profits, and that are not capital in nature, are deductible under the profits tax rules set by the Inland Revenue Department.
• Accurate expense tracking supports better budgeting, clearer profitability analysis, and smoother tax filing.

What is an expense?

An expense is a cost a business incurs to earn revenue and keep operating. It appears on the income statement (also called a profit and loss statement) and reduces the profit for the period in which it's recorded.

When you pay for office rent, staff salaries, or advertising, you're incurring expenses. These outflows are necessary to run and grow your business. Unlike buying an asset that provides value over many years, most expenses relate to costs consumed within a single accounting period.

Expense vs expenditure vs cost

These terms overlap but have distinct meanings in accounting.

• Cost is the broadest term: it refers to the monetary value of resources used, whether or not payment has been made.
• Expenditure is the act of spending money or incurring a liability, regardless of when the benefit is recognised.
• Expense is the portion of a cost or expenditure recognised on the income statement in a specific period because the benefit has been consumed.

A simple way to think about it: you make an expenditure when you pay, but you record an expense when you use the value.

Common types of expenses

Expenses can be grouped in several ways depending on their nature, behaviour, or tax treatment. Understanding these categories helps you budget, forecast, and file taxes accurately.

Operating vs non-operating expenses

Operating expenses arise from core business activities, while non-operating expenses fall outside regular operations. Operating expenses often include overheads such as rent and utilities.

• Operating expenses include rent, utilities, marketing, and wages directly tied to running the business.
• Non-operating expenses include interest on loans, foreign exchange losses, or one-off legal settlements.

Fixed vs variable expenses

Fixed expenses stay the same regardless of sales volume, while variable expenses fluctuate with activity levels.

• Fixed expenses: office rent, insurance premiums, annual software subscriptions.
• Variable expenses: raw materials, shipping costs, sales commissions.

Direct vs indirect costs

Direct costs can be traced to a specific product or service, whereas indirect costs support the business as a whole. Direct costs make up your cost of sales, sometimes called cost of goods sold.

• Direct costs: materials and labour used to manufacture a product.
• Indirect costs: administrative salaries, office supplies, general utilities.

Deductible vs non-deductible expenses

In Hong Kong, the Inland Revenue Department (IRD) allows deductions for expenses incurred in the production of chargeable profits, provided they are not capital in nature. This is the key profits-tax test for deductibility.

• Deductible expenses: staff salaries, rent for business premises, advertising, and professional fees related to earning assessable profits.
• Non-deductible expenses: private or domestic costs (personal meals, home utility bills), capital expenditure (purchasing fixed assets), and fines or penalties.

Keeping clear records helps you claim all allowable deductions and avoid issues during a tax audit.

Capital expenditure vs expense

Capital expenditure (CapEx) is spending on assets that provide value beyond the current period, such as machinery or office fit-outs. These costs are not immediately deductible; instead, they may qualify for depreciation allowances over time.

An expense, by contrast, relates to costs consumed within the current accounting period. Understanding the distinction ensures you apply the correct tax treatment and accurately report profit.

How expenses are recorded

Businesses record expenses using one of two accounting methods: accrual basis or cash basis. The method you choose affects when an expense appears on your income statement.

The matching principle underpins accrual accounting. It states that expenses should be recognised in the same period as the revenue they help generate, giving a more accurate picture of profitability.

• Accrual basis: you record an expense when it's incurred, regardless of when cash changes hands. For example, you recognise a December electricity bill in December even if you pay it in January.
• Cash basis: you record an expense only when payment is made. Using the same example, the electricity cost appears in January when the bill is paid.

Most Hong Kong businesses with more complex operations use accrual accounting because it aligns expenses with related revenue.

Examples of common business expenses

Many costs recur month after month for Hong Kong small businesses. Here are typical examples you might track:

• Rent for office, retail, or warehouse space
• Salaries and wages, including MPF contributions
• Utilities such as electricity, water, and internet
• Marketing and advertising costs
• Business insurance premiums
• Depreciation of equipment and fixtures
• Software subscriptions and cloud services

Why tracking and categorising expenses matters

Keeping detailed expense records gives you a clear view of where money goes each month. This visibility is essential for calculating gross profit (revenue minus cost of goods sold) and net profit (gross profit minus all other operating expenses and taxes), and for tracking your profitability over time.

When you categorise expenses correctly, you can identify spending patterns, spot areas to reduce costs, and prepare accurate profits-tax returns for the IRD. Clear records also make it easier to work with your accountant or bookkeeper and respond quickly if the IRD requests supporting documents.

For a Hong Kong small business, disciplined expense management supports healthier cash flow, better budgeting, and more confident decision-making.

Manage your business expenses with Xero

Xero helps you capture receipts, categorise transactions, and reconcile bank feeds so your expense records stay organised and up to date. With real-time reports, you can monitor spending, track profitability, and prepare for profits-tax filing with less stress. Get started today and get one month free.

FAQs on expenses

Here are answers to common questions about business expenses.

What is an expense in accounting?

An expense is a cost recognised on the income statement in the period it helps generate revenue. It reduces your profit for that period.

What is the difference between an expense and an expenditure?

Expenditure is the act of spending money or taking on a liability. An expense is the portion of that spending recognised on the income statement when the benefit is consumed.

Is a salary an expense?

Yes. Salaries and wages paid to employees are operating expenses. They appear on the income statement in the period the work is performed.

Are all business expenses tax deductible in Hong Kong?

No. The Inland Revenue Department only allows deductions for expenses incurred in the production of chargeable profits and not capital in nature. Private, domestic, and capital costs are generally not deductible.

When is an expense recorded?

Under accrual accounting, an expense is recorded when incurred. Under cash-basis accounting, it's recorded when payment is made.

Related terms

• Gross profit
• Net profit
• Profit margin
• Cash flow

Learn more about expenses

• Financial statements guide
• Cash flow forecasting guide
• Small business accounting guide