What is Capital Expenditure?

Capital expenditure (commonly abbreviated to capex) is spending on assets that will provide economic benefit to a business over more than one accounting period. Rather than being charged to the income statement immediately, capex is capitalised on the balance sheet as a fixed asset and then written off gradually through depreciation or amortisation.

The distinction between capital expenditure and revenue expenditure is one of the most important judgements in accounting, because it directly affects reported profit, the balance sheet, and the tax position.

What Qualifies as Capital Expenditure

Expenditure is capital in nature when it:

1. Acquires a new asset (purchase of machinery, vehicles, or property)
2. Enhances an existing asset beyond its original condition (an extension to a building, a significant upgrade to equipment)
3. Brings an asset into working condition (delivery, installation, and commissioning costs)

Costs Included in Capital Expenditure

The initial cost of a capitalised asset includes all costs directly attributable to bringing the asset to its intended location and working condition:

VAT is excluded from the capitalised cost if the business is VAT-registered and can reclaim the input tax.

Capital Expenditure Versus Revenue Expenditure

The distinction determines when the cost hits the income statement:

Grey Areas

Some expenditure is difficult to classify. The key test is whether the spending improves the asset beyond its original condition or merely restores it:

Capitalisation and Depreciation

Once capitalised, the asset is written off over its estimated useful life through depreciation (for tangible assets) or amortisation (for intangible assets).

Example: A company purchases equipment for £40,000 with an estimated useful life of 8 years and no residual value.

Annual depreciation (straight-line) = £40,000 / 8 = £5,000

The depreciation charge of £5,000 appears in the income statement each year, spreading the cost over the periods that benefit from the asset.

Capital Expenditure and Tax

For corporation tax purposes, HMRC does not allow accounting depreciation as a deductible expense. Instead, businesses claim capital allowances , which follow HMRC’s own rules and rates.

Key Capital Allowance Reliefs

Full expensing, introduced permanently from 1 April 2023, means that qualifying companies can deduct the entire cost of new plant and machinery in the year of purchase, making the UK one of the most generous jurisdictions for capital investment relief.

Capital Expenditure on the Balance Sheet

Capitalised expenditure appears under fixed assets (non-current assets) on the balance sheet :

The notes to the accounts must disclose additions (new capex) and disposals during the period for each category of fixed asset.

Capital Expenditure Budget

Businesses typically prepare an annual capital expenditure budget to plan and control spending on long-term assets. The budget considers:

• The condition and remaining useful life of existing assets
• Growth plans requiring new capacity
• Available funding (retained profits, bank facilities, or equity)
• Tax relief available through capital allowances
• The impact on cash flow – capex is a significant cash outflow even though it does not fully affect profit in the year of purchase

Capital Expenditure and Cash Flow

Capital expenditure appears as a cash outflow under investing activities in the cash flow statement. This is why a business can report strong profits while experiencing tight cash flow – profit is reduced by depreciation (a non-cash charge), but cash is reduced by the full cost of the asset in the year of purchase.

Understanding this timing difference is essential for effective cash flow management.

Common Errors in Classifying Capital Expenditure

Getting the classification right is a matter of applying the rules consistently and exercising sound judgement. When in doubt, the question to ask is: does this expenditure create future economic benefit, or does it merely maintain the current state of affairs?